Faced the same error. In my case , what i did wrong was that i injected the service(named DataService in my case) inside the constructor within the Component but I simply forgot to import it within the component.

 constructor(private dataService:DataService ) {
    console.log("constructor called");
  }

I missed the below import code.

import { DataService } from '../../services/data.service';

Usually it's because of sdk versions and/or dependencies.

For Cordova developers, put your dependencies settings in "project.properties" file under CORDOVA_PROJECT_ROOT/platforms/android/ folder, like this:

target=android-26
android.library.reference.1=CordovaLib
android.library.reference.2=app
cordova.system.library.1=com.android.support:support-v4:26.1.0
cordova.gradle.include.2=cordova-plugin-googlemaps/app-tbxml-android.gradle
cordova.system.library.3=com.android.support:support-core-utils:26.1.0
cordova.system.library.4=com.google.android.gms:play-services-maps:15.0.0
cordova.system.library.5=com.google.android.gms:play-services-location:15.0.0

So if you use CLI "cordova build", it will overwrite the dependencies section:

dependencies {
    implementation fileTree(dir: 'libs', include: '*.jar')
    // SUB-PROJECT DEPENDENCIES START 
   /* section being overwritten by cordova, referencing project.properties */
...
    // SUB-PROJECT DEPENDENCIES END
}

If you are using proper libraries and its versions in project.properties, you should be fine.

@NgModule({
  declarations: [
    SearchComponent
  ],
  exports: [
    CommonModule,
    MatInputModule,
    MatButtonModule,
    MatCardModule,
    MatFormFieldModule,
    MatDialogModule,
  ]
})
export class MaterialModule { }

Also, do not forget to import the MaterialModule in the imports array of AppModule.

Update: Angular v6+

For Apps converted from older versions (Angular v2 - v5): HttpModule is now deprecated and you need to replace it with HttpClientModule or else you will get the error too.

1. In your app.module.ts replace import { HttpModule } from '@angular/http'; with the new HttpClientModule import { HttpClientModule} from "@angular/common/http"; Note: Be sure to then update the modules imports[] array by removing the old HttpModule and replacing it with the new HttpClientModule.
2. In any of your services that used HttpModule replace import { Http } from '@angular/http'; with the new HttpClient import { HttpClient } from '@angular/common/http';

3. Update how you handle your Http response. For example - If you have code that looks like this

   http.get('people.json').subscribe((res:Response) => this.people = res.json());

The above code example will result in an error. We no longer need to parse the response, because it already comes back as JSON in the config object.

The subscription callback copies the data fields into the component's config object, which is data-bound in the component template for display.

For more information please see the - Angular HttpClientModule - Official Documentation

I was facing the same problem, then in my app.module.ts I updated the file this way,

import { HttpModule } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';

and in the same file (app.module.ts) in my @NgModule imports[]array I wrote this way,

HttpModule,
HttpClientModule

npm i -f

I'd like to repost some comments from this thread, where you can read up on the issue and the issue was solved.

This is exactly Angular's issue. Current package.json requires fsevent as not optionalDependencies but devDependencies. This may be a problem for non-OSX users.

Sometimes

Even if you remove it from package.json npm i still fails because another module has it as a peer dep.

So

if npm-shrinkwrap.json is still there, please remove it or try npm i -f

In my case, I accidentally added the package in the declaration but it should be in imports.

The other way to tackle it is to use this code snippet:

JSON.parse(JSON.stringify(response)).data

This feels so wrong but it works

constructor(private activatedRoute: ActivatedRoute) {
}

ngOnInit() {
    this.activatedRoute.params.subscribe(paramsId => {
        this.id = paramsId.id;
        console.log(this.id);
    });
  
 }

I was using http in angular 5 that was a problem. Using Httpclient resolved the issue.

Don't want to be repetitive, but just to summarize in other way (features added in new HttpClient):

• Automatic conversion from JSON to an object
• Response type definition
• Event firing
• Simplified syntax for headers
• Interceptors

I wrote an article, where I covered the difference between old "http" and new "HttpClient". The goal was to explain it in the easiest way possible.

Simply about new HttpClient in Angular

In my case, Angular 6, I renamed folder and file names of my modules from google.map.module.ts to google-map.module.ts. In order to compile without overlay with old module and component names, ng compiler compiled with no error.

In app.routes.ts:

     {
        path: 'calendar', 
        loadChildren: './views/app-calendar/app-calendar.module#AppCalendarModule', 
        data: { title: 'Calendar', breadcrumb: 'CALENDAR'}
      },

In google-map.routing.ts

import { GoogleMapComponent } from './google-map.component';
const routes: Routes = [
  {
    path: '', component: GoogleMapComponent, data: { title: 'Coupon Map' }
  }
];
@NgModule({
    exports: [RouterModule],
    imports: [RouterModule.forChild(routes)]
})
export class GoogleMapRoutingModule { }

In google-map.module.ts:

import { GoogleMapRoutingModule } from './google-map.routing';
@NgModule({
  imports: [
    CommonModule,
    FormsModule,
    CommonModule,
    GoogleMapRoutingModule,
  ],
  exports: [GoogleMapComponent],
  declarations: [GoogleMapComponent]
})
export class GoogleMapModule { }

In my case, I created a new ChildComponent in Parentcomponent whereas both in the same module but Parent is registered in a shared module so I created ChildComponent using CLI which registered Child in the current module but my parent was registered in the shared module.

So register the ChildComponent in Shared Module manually.

Use all the jackson dependencies(databind,core, annotations, scala(if you are using spark and scala)) with the same version.. and upgrade the versions to the latest releases..

<dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-scala_2.11</artifactId>
            <version>2.9.4</version>
        </dependency>

        <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.4</version>
        <exclusions>
            <exclusion>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-annotations</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.4</version>
    </dependency>

        <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.9.4</version>

        </dependency>

Note: Use Scala dependency only if you are working with scala. Otherwise it is not needed.

I was trying to use Feign, while I encounter same issue, As I understood HTTP message converter will help but wanted to understand how to achieve this.

@FeignClient(name = "mobilesearch", url = "${mobile.search.uri}" ,
        fallbackFactory = MobileSearchFallbackFactory.class,
        configuration = MobileSearchFeignConfig.class)
public interface MobileSearchClient {

    @RequestMapping(method = RequestMethod.GET)
    List<MobileSearchResponse> getPhones();
}

You have to use Customer Configuration for the decoder, MobileSearchFeignConfig,

public class MobileSearchFeignConfig {

    @Bean
    Logger.Level feignLoggerLevel() {
        return Logger.Level.FULL;
    }


    @Bean
    public Decoder feignDecoder() {
        return new ResponseEntityDecoder(new SpringDecoder(feignHttpMessageConverter()));
    }

    public ObjectFactory<HttpMessageConverters> feignHttpMessageConverter() {
        final HttpMessageConverters httpMessageConverters = new HttpMessageConverters(new MappingJackson2HttpMessageConverter());
        return new ObjectFactory<HttpMessageConverters>() {
            @Override
            public HttpMessageConverters getObject() throws BeansException {
                return httpMessageConverters;
            }
        };
    }

    public class MappingJackson2HttpMessageConverter extends org.springframework.http.converter.json.MappingJackson2HttpMessageConverter {
        MappingJackson2HttpMessageConverter() {
            List<MediaType> mediaTypes = new ArrayList<>();
            mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8"));
            setSupportedMediaTypes(mediaTypes);
        }
    }

}

MY OWN SOLUTION

I created a new component called test in this folder:

I also created a mock called test.json in the assests folder created by angular cli (important):

This mock looks like this:

[
        {
            "id": 1,
            "name": "Item 1"
        },
        {
            "id": 2,
            "name": "Item 2"
        },
        {
            "id": 3,
            "name": "Item 3"
        }
]

In the controller of my component test import follow rxjs like this

import 'rxjs/add/operator/map'

This is important, because you have to map your response from the http get call, so you get a json and can loop it in your ngFor. Here is my code how I load the mock data. I used http get and called my path to the mock with this path this.http.get("/assets/mock/test/test.json"). After this i map the response and subscribe it. Then I assign it to my variable items and loop it with ngFor in my template. I also export the type. Here is my whole controller code:

import { Component, OnInit } from "@angular/core";
import { Http, Response } from "@angular/http";
import 'rxjs/add/operator/map'

export type Item = { id: number, name: string };

@Component({
  selector: "test",
  templateUrl: "./test.component.html",
  styleUrls: ["./test.component.scss"]
})
export class TestComponent implements OnInit {
  items: Array<Item>;

  constructor(private http: Http) {}

  ngOnInit() {
    this.http
      .get("/assets/mock/test/test.json")
      .map(data => data.json() as Array<Item>)
      .subscribe(data => {
        this.items = data;
        console.log(data);
      });
  }
}

And my loop in it's template:

<div *ngFor="let item of items">
  {{item.name}}
</div>

It works as expected! I can now add more mock files in the assests folder and just change the path to get it as json. Notice that you have also to import the HTTP and Response in your controller. The same in you app.module.ts (main) like this:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { HttpModule, JsonpModule } from '@angular/http';


import { AppComponent } from './app.component';
import { TestComponent } from './components/molecules/test/test.component';


@NgModule({
  declarations: [
    AppComponent,
    TestComponent
  ],
  imports: [
    BrowserModule,
    HttpModule,
    JsonpModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Had same problem. Just make sure to remove every occurrence of module in "declarations" but AppModule.

Worked for me.

I got rid of this same error in index.ts with these combined properties:

In tsconfig.json:

  "compilerOptions": {
    "target": "ES6"

And in package.json:

  "main": "index.ts",
  "scripts": {
    "start": "tsc -p tsconfig.json && node index.js"

RouterModule.forRoot([
      { path: 'welcome', component: WelcomeComponent },
      { path: '', redirectTo: 'welcome', pathMatch: 'full' },
      { path: '**', component: 'pageNotFoundComponent' }
    ])

Case 1 pathMatch:'full': In this case, when app is launched on localhost:4200 (or some server) the default page will be welcome screen, since the url will be https://localhost:4200/

If https://localhost:4200/gibberish this will redirect to pageNotFound screen because of path:'**' wildcard

Case 2 pathMatch:'prefix':

If the routes have { path: '', redirectTo: 'welcome', pathMatch: 'prefix' }, now this will never reach the wildcard route since every url would match path:'' defined.

Babar Bilal's answer likely worked perfectly for earlier Angular 2 alpha/beta releases. However, anyone solving this problem with Angular release v4+ may want to try the following change to his answer instead (wrapping the single route in the required array):

RouterModule.forRoot([{ path: "", component: LoginComponent}])

I also got this error .I was using Text inside body after changing to XML(text/xml) , got result as expected.

• If your request is XML Request use XML(text/xml).

• If your request is JSON Request use JSON(application/json)

This problem is because you did not import the module

import {RouterModule} from '@angular/router';

And you must declare this modulce in the import section

   imports:[RouterModule]

Also some of common cases :

maybe you export class with "default" prefix like so

export default class Module {}

just remove it

export class Module {}

this is solve the issue for me

Ok, after over 2 days of searching we finally fixed the problem. We deleted all our filter and configurations and instead used this 5 lines of code in the application class.

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        final ApplicationContext ctx = SpringApplication.run(Application.class, args);
    }

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurerAdapter() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**").allowedOrigins("http://localhost:3000");
            }
        };
    }
}

For the Collatz problem, you can get a significant boost in performance by caching the "tails". This is a time/memory trade-off. See: memoization (https://en.wikipedia.org/wiki/Memoization). You could also look into dynamic programming solutions for other time/memory trade-offs.

Example python implementation:

import sys

inner_loop = 0

def collatz_sequence(N, cache):
    global inner_loop

    l = [ ]
    stop = False
    n = N

    tails = [ ]

    while not stop:
        inner_loop += 1
        tmp = n
        l.append(n)
        if n <= 1:
            stop = True  
        elif n in cache:
            stop = True
        elif n % 2:
            n = 3*n + 1
        else:
            n = n // 2
        tails.append((tmp, len(l)))

    for key, offset in tails:
        if not key in cache:
            cache[key] = l[offset:]

    return l

def gen_sequence(l, cache):
    for elem in l:
        yield elem
        if elem in cache:
            yield from gen_sequence(cache[elem], cache)
            raise StopIteration

if __name__ == "__main__":
    le_cache = {}

    for n in range(1, 4711, 5):
        l = collatz_sequence(n, le_cache)
        print("{}: {}".format(n, len(list(gen_sequence(l, le_cache)))))

    print("inner_loop = {}".format(inner_loop))

The date time you're passing is not a iso local date time format.

Change to

@Column(name = "start_date")
@DateTimeFormat(iso = DateTimeFormatter.ISO_LOCAL_DATE_TIME)
@JsonFormat(pattern = "YYYY-MM-dd HH:mm")
private LocalDateTime startDate;

and pass date string in the format '2011-12-03T10:15:30'.

But if you still want to pass your custom format, use just have to specify the right formatter.

Change to

@Column(name = "start_date")
@DateTimeFormat(iso = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"))
@JsonFormat(pattern = "YYYY-MM-dd HH:mm")
private LocalDateTime startDate;

I think your problem is the @DateTimeFormat has no effect at all. As the jackson is doing the deseralization and it doesnt know anything about spring annotation and I dont see spring scanning this annotation in the deserialization context.

Alternatively, you can try setting the formatter while registering the java time module.

LocalDateTimeDeserializer localDateTimeDeserializer = new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"));
module.addDeserializer(LocalDateTime.class, localDateTimeDeserializer);

Here is the test case with the deseralizer which works fine. May be try to get rid of that DateTimeFormat annotation altogether.

@RunWith(JUnit4.class)
public class JacksonLocalDateTimeTest {

    private ObjectMapper objectMapper;

    @Before
    public void init() {
        JavaTimeModule module = new JavaTimeModule();
        LocalDateTimeDeserializer localDateTimeDeserializer =  new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"));
        module.addDeserializer(LocalDateTime.class, localDateTimeDeserializer);
        objectMapper = Jackson2ObjectMapperBuilder.json()
                .modules(module)
                .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
                .build();
    }

    @Test
    public void test() throws IOException {
        final String json = "{ \"date\": \"2016-11-08 12:00\" }";
        final JsonType instance = objectMapper.readValue(json, JsonType.class);

        assertEquals(LocalDateTime.parse("2016-11-08 12:00",DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm") ), instance.getDate());
    }
}


class JsonType {
    private LocalDateTime date;

    public LocalDateTime getDate() {
        return date;
    }

    public void setDate(LocalDateTime date) {
        this.date = date;
    }
}

Note that in order to create a so called "feature module", you need to import CommonModule inside it. So, your module initialization code will look like this:

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';

import { TaskCardComponent } from './task-card/task-card.component';
import { MdCardModule } from '@angular2-material/card';

@NgModule({
  imports: [
    CommonModule,
    MdCardModule 
  ],
  declarations: [
    TaskCardComponent
  ],
  exports: [
    TaskCardComponent
  ]
})
export class TaskModule { }

More information available here: https://angular.io/guide/ngmodule#create-the-feature-module

I implemented a small library that is quite useful. It provides a ClientHttpRequestFactory that can receive some context. By doing so, it allows to go through all client layers such as checking that query parameters are valued, headers set, and check that deserialization works well.

The issue is that there is at least one import for which source file is missing.

For example I got the same error when I was using

       import { AppRoutingModule } from './app-routing.module';

But the file './app-routing.module' was not there in given path.

I removed this import and error went away.

If you use the Angular CLI to create your components, let's say CarComponent, it attaches app to the selector name (i.e app-car) and this throws the above error when you reference the component in the parent view. Therefore you either have to change the selector name in the parent view to let's say <app-car></app-car> or change the selector in the CarComponent to selector: 'car'

You should catch a HttpStatusCodeException exception:

try {
    restTemplate.exchange(...);
} catch (HttpStatusCodeException exception) {
    int statusCode = exception.getStatusCode().value();
    ...
}

This is what worked for me. Issue is earlier I didn't set Content Type(header) when I used exchange method.

MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("param1", "123");
map.add("param2", "456");
map.add("param3", "789");
map.add("param4", "123");
map.add("param5", "456");

HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);

final HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<MultiValueMap<String, String>>(map ,
        headers);
JSONObject jsonObject = null;

try {
    RestTemplate restTemplate = new RestTemplate();
    ResponseEntity<String> responseEntity = restTemplate.exchange(
            "https://url", HttpMethod.POST, entity,
            String.class);

    if (responseEntity.getStatusCode() == HttpStatus.CREATED) {
        try {
            jsonObject = new JSONObject(responseEntity.getBody());
        } catch (JSONException e) {
            throw new RuntimeException("JSONException occurred");
        }
    }
  } catch (final HttpClientErrorException httpClientErrorException) {
        throw new ExternalCallBadRequestException();
  } catch (HttpServerErrorException httpServerErrorException) {
        throw new ExternalCallServerErrorException(httpServerErrorException);
  } catch (Exception exception) {
        throw new ExternalCallServerErrorException(exception);
    } 

ExternalCallBadRequestException and ExternalCallServerErrorException are the custom exceptions here.

Note: Remember HttpClientErrorException is thrown when a 4xx error is received. So if the request you send is wrong either setting header or sending wrong data, you could receive this exception.

Tested xcode 8 stable version ; Need to use var request variable with URLRequest() With thats you can easily fix that (bug)

var request = URLRequest(url:myUrl!) And

let task = URLSession.shared().dataTask(with: request as URLRequest) { }

Worked fine ! Thank you guys, i think help many people. !

An issue with the answer from Michal Foksa is that it adds the query parameters first, and then expands the path variables. If query parameter contains parenthesis, e.g. {foobar}, this will cause an exception.

The safe way is to expand the path variables first, and then add the query parameters:

String url = "http://test.com/Services/rest/{id}/Identifier";
Map<String, String> params = new HashMap<String, String>();
params.put("id", "1234");
URI uri = UriComponentsBuilder.fromUriString(url)
        .buildAndExpand(params)
        .toUri();
uri = UriComponentsBuilder
        .fromUri(uri)
        .queryParam("name", "myName")
        .build()
        .toUri();
restTemplate.exchange(uri , HttpMethod.PUT, requestEntity, class_p);

I have also faced this problem but i had restart Hadoop and use command hadoop dfsadmin -safemode leave

now start hive it will work i think

The solution can be found here https://github.com/spring-projects/spring-framework/issues/22734

you can create two separate post request mappings. For example.

@PostMapping(path = "/test", consumes = "application/json")
public String test(@RequestBody User user) {
  return user.toString();
}

@PostMapping(path = "/test", consumes = "application/x-www-form-urlencoded")
public String test(User user) {
  return user.toString();
}

I wrote about an alternative in this StackOverflow answer.

There I wrote step by step, explaining with code. The short way:

First: write an object

Second: create a converter to mapping the model extending the AbstractHttpMessageConverter

Third: tell to spring use this converter implementing a WebMvcConfigurer.class overriding the configureMessageConverters method

Fourth and final: using this implementation setting in the mapping inside your controller the consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE and @RequestBody in front of your object.

I'm using spring boot 2.

I managed to fix it finally. The problem is not related to HikariCP. The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional or enveloping all the logic in a single call to transactional service method seem to solve the problem.

If you are not a big fan of XML, then just add below tag in your plist file.

If the goal is to have a reusable RestTemplate which is in general useful for attaching the same header to a series of similar request a org.springframework.boot.web.client.RestTemplateCustomizer parameter can be used with a RestTemplateBuilder:

 String accessToken= "<the oauth 2 token>";
 RestTemplate restTemplate = new RestTemplateBuilder(rt-> rt.getInterceptors().add((request, body, execution) -> {
        request.getHeaders().add("Authorization", "Bearer "+accessToken);
        return execution.execute(request, body);
    })).build();

Try this,

// prepare json data
let json: [String: Any] = ["title": "ABC",
                           "dict": ["1":"First", "2":"Second"]]

let jsonData = try? JSONSerialization.data(withJSONObject: json)

// create post request
let url = URL(string: "http://httpbin.org/post")!
var request = URLRequest(url: url)
request.httpMethod = "POST"

// insert json data to the request
request.httpBody = jsonData

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let data = data, error == nil else {
        print(error?.localizedDescription ?? "No data")
        return
    }
    let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
    if let responseJSON = responseJSON as? [String: Any] {
        print(responseJSON)
    }
}

task.resume()

or try a convenient way Alamofire

I had this problem and then found these pages: Here you can see that apache library is deprecated, but it's not removed, so it should work. It doesn't.

See.

And here you can see how to include apache library to your project

See.

I resolved problem by adding following to my build.gradle file as recommended in second link.

android {
    useLibrary 'org.apache.http.legacy'
}

However this only works if you are using gradle 1.3.0-beta2 or greater, so you will have to add this to buildscript dependencies if you are on a lower version:

classpath 'com.android.tools.build:gradle:1.3.0-beta2'

Hope this helps.

I got the 404 problem, because of Url Case Sensitivity.

For example @RequestMapping(value = "/api/getEmployeeData",method = RequestMethod.GET) should be accessed using http://www.example.com/api/getEmployeeData. If we are using http://www.example.com/api/getemployeedata, we'll get the 404 error.

Note: http://www.example.com is just for reference which i mentioned above. It should be your domain name where you hosted your application.

After a lot of struggle and apply all the other answers in this post, I got that the problem is with that url only. It might be silly problem. But it cost my 2 hours. So I hope it will help someone.

I think the simplest/handy way to consuming JSON is using a Java class that resembles your JSON: https://stackoverflow.com/a/6019761

But if you can't use a Java class you can use one of these two solutions.

Solution 1: you can do it receiving a Map<String, Object> from your controller:

@RequestMapping(
    value = "/process", 
    method = RequestMethod.POST)
public void process(@RequestBody Map<String, Object> payload) 
    throws Exception {

  System.out.println(payload);

}

Using your request:

curl -H "Accept: application/json" -H "Content-type: application/json" \
-X POST -d '{"name":"value"}' http://localhost:8080/myservice/process

Solution 2: otherwise you can get the POST payload as a String:

@RequestMapping(
    value = "/process", 
    method = RequestMethod.POST,
    consumes = "text/plain")
public void process(@RequestBody String payload) throws Exception {

  System.out.println(payload);

}

Then parse the string as you want. Note that must be specified consumes = "text/plain" on your controller. In this case you must change your request with Content-type: text/plain:

curl -H "Accept: application/json" -H "Content-type: text/plain" -X POST \
-d '{"name":"value"}' http://localhost:8080/myservice/process

If it's working from Postman, try new Spring version, becouse the 'org.springframework.boot' 2.2.2.RELEASE version can throw "Required request body content is missing" exception.
Try 2.2.6.RELEASE version.

In my situation, the controller method was not made as async and the method called inside the controller method was async.

So I guess its important to use async/await all the way to top level to avoid issues like these.

I am adding it so that someone in a similar situation might find it helpful.

So, even after multiDexEnabled = true I was getting the same error. I had no duplicate libraries. None of the above solutions worked. Upon reading the error log, I found OutOfMemError issue to be the primary reason and thought of changing the heap size somehow. Hence, this -

dexOptions {
        preDexLibraries = false
        javaMaxHeapSize "4g"
    }

Where "4g" means HeapSize of 4 GB. And it worked! I hope it does for you too.

accepted answer is not right with Spring 5. try changing your URL of your web service to .json! that is the right fix. great details here http://stick2code.blogspot.com/2014/03/solved-orgspringframeworkwebhttpmediaty.html

map HTTP request header Content-Type, handle request body.

• @RequestParam ? application/x-www-form-urlencoded,

• @RequestBody ? application/json,

• @RequestPart ? multipart/form-data,

• RequestParam (Spring Framework 5.1.9.RELEASE API)

  map to query parameters, form data, and parts in multipart requests.

  RequestParam is likely to be used with name-value form fields

• RequestBody (Spring Framework 5.1.9.RELEASE API)

  bound to the body of the web request. The body of the request is passed through an HttpMessageConverter to resolve the method argument depending on the content type of the request. (e.g. JSON, XML)

• RequestPart (Spring Framework 5.1.9.RELEASE API)

  used to associate the part of a "multipart/form-data" request

  RequestPart is likely to be used with parts containing more complex content

• HttpMessageConverter (Spring Framework 5.1.9.RELEASE API)

  a converter that can convert from and to HTTP requests and responses.

  All Known Implementing Classes: ..., AbstractJsonHttpMessageConverter, AbstractXmlHttpMessageConverter, ...

I use:

let dictionary = ["method":"login_user",
                  "cel":mobile.text!
                  "password":password.text!] as  Dictionary<String,String>

for (key, value) in dictionary {
    data=data+"&"+key+"="+value
    }

request.HTTPBody = data.dataUsingEncoding(NSUTF8StringEncoding);

A cleaner alternative would be to use a Dictionary to handle parameters. They are key-value pairs after all.

private static readonly HttpClient httpclient;

static MyClassName()
{
    // HttpClient is intended to be instantiated once and re-used throughout the life of an application. 
    // Instantiating an HttpClient class for every request will exhaust the number of sockets available under heavy loads. 
    // This will result in SocketException errors.
    // https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclient?view=netframework-4.7.1
    httpclient = new HttpClient();    
} 

var url = "http://myserver/method";
var parameters = new Dictionary<string, string> { { "param1", "1" }, { "param2", "2" } };
var encodedContent = new FormUrlEncodedContent (parameters);

var response = await httpclient.PostAsync (url, encodedContent).ConfigureAwait (false);
if (response.StatusCode == HttpStatusCode.OK) {
    // Do something with response. Example get content:
    // var responseContent = await response.Content.ReadAsStringAsync ().ConfigureAwait (false);
}

Also dont forget to Dispose() httpclient, if you dont use the keyword using

As stated in the Remarks section of the HttpClient class in the Microsoft docs, HttpClient should be instantiated once and re-used.

Edit:

You may want to look into response.EnsureSuccessStatusCode(); instead of if (response.StatusCode == HttpStatusCode.OK).

You may want to keep your httpclient and dont Dispose() it. See: Do HttpClient and HttpClientHandler have to be disposed?

Edit:

Do not worry about using .ConfigureAwait(false) in .NET Core. For more details look at https://blog.stephencleary.com/2017/03/aspnetcore-synchronization-context.html

A correct file upload would like this:

HTTP header:

Content-Type: multipart/form-data; boundary=ABCDEFGHIJKLMNOPQ

Http body:

--ABCDEFGHIJKLMNOPQ

Content-Disposition: form-data; name="file"; filename="my.txt"

Content-Type: application/octet-stream

Content-Length: ...

<...file data in base 64...>

--ABCDEFGHIJKLMNOPQ--

and code is like this:

public void uploadFile(File file) {
        try {
            RestTemplate restTemplate = new RestTemplate();
            String url = "http://localhost:8080/file/user/upload";
            HttpMethod requestMethod = HttpMethod.POST;

            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.MULTIPART_FORM_DATA);


            MultiValueMap<String, String> fileMap = new LinkedMultiValueMap<>();
            ContentDisposition contentDisposition = ContentDisposition
                    .builder("form-data")
                    .name("file")
                    .filename(file.getName())
                    .build();

            fileMap.add(HttpHeaders.CONTENT_DISPOSITION, contentDisposition.toString());
            HttpEntity<byte[]> fileEntity = new HttpEntity<>(Files.readAllBytes(file.toPath()), fileMap);

            MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
            body.add("file", fileEntity);

            HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, headers);

            ResponseEntity<String> response = restTemplate.exchange(url, requestMethod, requestEntity, String.class);

            System.out.println("file upload status code: " + response.getStatusCode());

        } catch (IOException e) {
            e.printStackTrace();
        }

}

I've preferred using the params filter for parameter-centric content-type.. I believe that should work in conjunction with the produces attribute.

@GetMapping(value="/person/{id}/", 
            params="format=json",
            produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Person> getPerson(@PathVariable Integer id){
    Person person = personMapRepository.findPerson(id);
    return ResponseEntity.ok(person);
} 
@GetMapping(value="/person/{id}/", 
            params="format=xml",
            produces=MediaType.APPLICATION_XML_VALUE)
public ResponseEntity<Person> getPersonXML(@PathVariable Integer id){
    return GetPerson(id); // delegate
}

If you're working in a large multi-module project, with several different application.properties files, then try adding your value to the parent project's property file.

If you are unsure which is your parent project, check your project's pom.xml file, for a <parent> tag.

This solved the issue for me.

You can simply use a controller method like this:

@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<?> uploadFile(
    @RequestParam("file") MultipartFile file) {

  try {
    // Handle the received file here
    // ...
  }
  catch (Exception e) {
    return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
  }

  return new ResponseEntity<>(HttpStatus.OK);
} // method uploadFile

Without any additional configurations for Spring Boot.

Using the following html form client side:

<html>
<body>
  <form action="/uploadFile" method="POST" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" value="Upload"> 
  </form>
</body>
</html>

If you want to set limits on files size you can do it in the application.properties:

# File size limit
multipart.maxFileSize = 3Mb

# Total request size for a multipart/form-data
multipart.maxRequestSize = 20Mb

Moreover to send the file with Ajax take a look here: http://blog.netgloo.com/2015/02/08/spring-boot-file-upload-with-ajax/

Your json contains an array, but you're trying to parse it as an object. This error occurs because objects must start with {.

You have 2 options:

1. You can get rid of the ShopContainer class and use Shop[] instead

   ShopContainer response  = restTemplate.getForObject(
       url, ShopContainer.class);
   

   replace with

   Shop[] response  = restTemplate.getForObject(url, Shop[].class);
   

   and then make your desired object from it.

2. You can change your server to return an object instead of a list

   return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(list);
   

   replace with

   return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(
       new ShopContainer(list));
   

I implemented it in the following way. I wanted a generic MakeRequest method that could call my API and receive content for the body of the request - and also deserialise the response into the desired type. I create a Dictionary<string, string> object to house the content to be submitted, and then set the HttpRequestMessage Content property with it:

Generic method to call the API:

    private static T MakeRequest<T>(string httpMethod, string route, Dictionary<string, string> postParams = null)
    {
        using (var client = new HttpClient())
        {
            HttpRequestMessage requestMessage = new HttpRequestMessage(new HttpMethod(httpMethod), $"{_apiBaseUri}/{route}");

            if (postParams != null)
                requestMessage.Content = new FormUrlEncodedContent(postParams);   // This is where your content gets added to the request body


            HttpResponseMessage response = client.SendAsync(requestMessage).Result;

            string apiResponse = response.Content.ReadAsStringAsync().Result;
            try
            {
                // Attempt to deserialise the reponse to the desired type, otherwise throw an expetion with the response from the api.
                if (apiResponse != "")
                    return JsonConvert.DeserializeObject<T>(apiResponse);
                else
                    throw new Exception();
            }
            catch (Exception ex)
            {
                throw new Exception($"An error ocurred while calling the API. It responded with the following message: {response.StatusCode} {response.ReasonPhrase}");
            }
        }
    }

Call the method:

    public static CardInformation ValidateCard(string cardNumber, string country = "CAN")
    { 
        // Here you create your parameters to be added to the request content
        var postParams = new Dictionary<string, string> { { "cardNumber", cardNumber }, { "country", country } };
        // make a POST request to the "cards" endpoint and pass in the parameters
        return MakeRequest<CardInformation>("POST", "cards", postParams);
    }

For me it turned out that I had a @JsonManagedReferece in one entity without a @JsonBackReference in the other referenced entity. This caused the marshaller to throw an error.

If you want to avoid using an extra Class and List<Object> genomes you could simply use a Map.

The data structure translates into Map<String, List<Country>>

String resourceEndpoint = "http://api.geonames.org/countryInfoJSON?username=volodiaL";

Map<String, List<Country>> geonames = restTemplate.getForObject(resourceEndpoint, Map.class);

List<Country> countries = geonames.get("geonames");

As Artem Bilan said, this problem occures because MappingJackson2HttpMessageConverter supports response with application/json content-type only. If you can't change server code, but can change client code(I had such case), you can change content-type header with interceptor:

restTemplate.getInterceptors().add((request, body, execution) -> {
            ClientHttpResponse response = execution.execute(request,body);
            response.getHeaders().setContentType(MediaType.APPLICATION_JSON);
            return response;
        });

That is invalid syntax. You are mixing relational expressions with scalar operators (OR). Specifically you cannot combine expr IN (select ...) OR (select ...). You probably want expr IN (select ...) OR expr IN (select ...). Using union would also work: expr IN (select... UNION select...)

In v2.0 of the Graph API, calling /me/friends returns the person's friends who also use the app.

In addition, in v2.0, you must request the user_friends permission from each user. user_friends is no longer included by default in every login. Each user must grant the user_friends permission in order to appear in the response to /me/friends. See the Facebook upgrade guide for more detailed information, or review the summary below.

The /me/friendlists endpoint and user_friendlists permission are not what you're after. This endpoint does not return the users friends - its lets you access the lists a person has made to organize their friends. It does not return the friends in each of these lists. This API and permission is useful to allow you to render a custom privacy selector when giving people the opportunity to publish back to Facebook.

If you want to access a list of non-app-using friends, there are two options:

1. If you want to let your people tag their friends in stories that they publish to Facebook using your App, you can use the /me/taggable_friends API. Use of this endpoint requires review by Facebook and should only be used for the case where you're rendering a list of friends in order to let the user tag them in a post.

2. If your App is a Game AND your Game supports Facebook Canvas, you can use the /me/invitable_friends endpoint in order to render a custom invite dialog, then pass the tokens returned by this API to the standard Requests Dialog.

In other cases, apps are no longer able to retrieve the full list of a user's friends (only those friends who have specifically authorized your app using the user_friends permission).

For apps wanting allow people to invite friends to use an app, you can still use the Send Dialog on Web or the new Message Dialog on iOS and Android.

You can also register your keystore :

private void registerKeyStore(String keyStoreName) {
    try {
        ClassLoader classLoader = this.getClass().getClassLoader();
        InputStream keyStoreInputStream = classLoader.getResourceAsStream(keyStoreName);
        if (keyStoreInputStream == null) {
            throw new FileNotFoundException("Could not find file named '" + keyStoreName + "' in the CLASSPATH");
        }

        //load the keystore
        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
        keystore.load(keyStoreInputStream, null);

        //add to known keystore 
        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(keystore);

        //default SSL connections are initialized with the keystore above
        TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, trustManagers, null);
        SSLContext.setDefault(sc);
    } catch (IOException | GeneralSecurityException e) {
        throw new RuntimeException(e);
    }
}

Actually, you can do this, but with additional code.

There is Guava equivalent of ParameterizedTypeReference and it's called TypeToken.

Guava's class is much more powerful then Spring's equivalent. You can compose the TypeTokens as you wish. For example:

static <K, V> TypeToken<Map<K, V>> mapToken(TypeToken<K> keyToken, TypeToken<V> valueToken) {
  return new TypeToken<Map<K, V>>() {}
    .where(new TypeParameter<K>() {}, keyToken)
    .where(new TypeParameter<V>() {}, valueToken);
}

If you call mapToken(TypeToken.of(String.class), TypeToken.of(BigInteger.class)); you will create TypeToken<Map<String, BigInteger>>!

The only disadvantage here is that many Spring APIs require ParameterizedTypeReference and not TypeToken. But we can create ParameterizedTypeReference implementation which is adapter to TypeToken itself.

import com.google.common.reflect.TypeToken;
import org.springframework.core.ParameterizedTypeReference;

import java.lang.reflect.Type;

public class ParameterizedTypeReferenceBuilder {

    public static <T> ParameterizedTypeReference<T> fromTypeToken(TypeToken<T> typeToken) {
        return new TypeTokenParameterizedTypeReference<>(typeToken);
    }

    private static class TypeTokenParameterizedTypeReference<T> extends ParameterizedTypeReference<T> {

        private final Type type;

        private TypeTokenParameterizedTypeReference(TypeToken<T> typeToken) {
            this.type = typeToken.getType();
        }

        @Override
        public Type getType() {
            return type;
        }

        @Override
        public boolean equals(Object obj) {
            return (this == obj || (obj instanceof ParameterizedTypeReference &&
                    this.type.equals(((ParameterizedTypeReference<?>) obj).getType())));
        }

        @Override
        public int hashCode() {
            return this.type.hashCode();
        }

        @Override
        public String toString() {
            return "ParameterizedTypeReference<" + this.type + ">";
        }

    }

}

Then you can use it like this:

public <T> ResponseWrapper<T> makeRequest(URI uri, Class<T> clazz) {
   ParameterizedTypeReference<ResponseWrapper<T>> responseTypeRef =
           ParameterizedTypeReferenceBuilder.fromTypeToken(
               new TypeToken<ResponseWrapper<T>>() {}
                   .where(new TypeParameter<T>() {}, clazz));
   ResponseEntity<ResponseWrapper<T>> response = template.exchange(
        uri,
        HttpMethod.POST,
        null,
        responseTypeRef);
    return response;
}

And call it like:

ResponseWrapper<MyClass> result = makeRequest(uri, MyClass.class);

And the response body will be correctly deserialized as ResponseWrapper<MyClass>!

You can even use more complex types if you rewrite your generic request method (or overload it) like this:

public <T> ResponseWrapper<T> makeRequest(URI uri, TypeToken<T> resultTypeToken) {
   ParameterizedTypeReference<ResponseWrapper<T>> responseTypeRef =
           ParameterizedTypeReferenceBuilder.fromTypeToken(
               new TypeToken<ResponseWrapper<T>>() {}
                   .where(new TypeParameter<T>() {}, resultTypeToken));
   ResponseEntity<ResponseWrapper<T>> response = template.exchange(
        uri,
        HttpMethod.POST,
        null,
        responseTypeRef);
    return response;
}

This way T can be complex type, like List<MyClass>.

And call it like:

ResponseWrapper<List<MyClass>> result = makeRequest(uri, new TypeToken<List<MyClass>>() {});

You could also simply tell your RestTemplate to accept all media types:

@Bean
public RestTemplate restTemplate() {
   final RestTemplate restTemplate = new RestTemplate();

   List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
   MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
   converter.setSupportedMediaTypes(Collections.singletonList(MediaType.ALL));
   messageConverters.add(converter);
   restTemplate.setMessageConverters(messageConverters);

   return restTemplate;
}

The solution at my end was to explicitly add a JoinColumn annotation like this:

@JoinColumn(name="mapping_type_id")

The column name is usually the table name + "_id" if there is an id field. Additionally, keep in mind which field it should be based on the relationship, OneToMany or ManyToOne.

Hope this helps.

You can use postForObject with an HttpEntity. It would look like this:

HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.set("Authorization", "Bearer "+accessToken);

HttpEntity<String> entity = new HttpEntity<String>(requestJson,headers);
String result = restTemplate.postForObject(url, entity, String.class);

In a GET request, you'd usually not send a body (it's allowed, but it doesn't serve any purpose). The way to add headers without wiring the RestTemplate differently is to use the exchange or execute methods directly. The get shorthands don't support header modification.

The asymmetry is a bit weird on a first glance, perhaps this is going to be fixed in future versions of Spring.

Right click in console and click Terminate/Disconnect All option.

OR

Click on 'Display selected console' icon on top right corner of the console window and, choose and terminate the console which holds the port still.

Your Maven is reading Java version as 1.6.0_65, Where as the pom.xml says the version is 1.7.

Try installing the required verison.

If already installed check your $JAVA_HOME environment variable, it should contain the path of Java JDK 7. If you dont find it, fix your environment variable.

also remove the lines

 <fork>true</fork>
     <executable>${JAVA_1_7_HOME}/bin/javac</executable>

from the pom.xml

I had the same issue when I had two setters one with Enum and one String. I had to use @JsonSetter annotation which tells Jackson what setter method to use during serialization. This solved my issue.

Web.Config file:

<configuration>
 <system.net>
        <mailSettings>
            <smtp from="[email protected]">
                <network host="smtp.gmail.com" 
                 port="587" 
                 userName="[email protected]" 
                 password="yourpassword" 
                 enableSsl="true"/>
            </smtp>
        </mailSettings>
</system.net>
</configuration>

Your client application and server application must be under same domain, for example :

client - localhost

server - localhost

and not :

client - localhost:21234

server - localhost

Teja Kumar Bethina's code changed for Swift 3:

    let urlStr = "http://url_to_manage_post_requests"
    let url = URL(string: urlStr)

    var request: URLRequest = URLRequest(url: url!)

    request.httpMethod = "POST"

    request.setValue("application/json", forHTTPHeaderField:"Content-Type")
    request.timeoutInterval = 60.0

    //additional headers
    request.setValue("deviceIDValue", forHTTPHeaderField:"DeviceId")

    let bodyStr = "string or data to add to body of request"
    let bodyData = bodyStr.data(using: String.Encoding.utf8, allowLossyConversion: true)
    request.httpBody = bodyData

    let task = URLSession.shared.dataTask(with: request) {
        (data: Data?, response: URLResponse?, error: Error?) -> Void in

        if let httpResponse = response as? HTTPURLResponse {
            print("responseCode \(httpResponse.statusCode)")
        }

        if error != nil {

            // You can handle error response here
            print("\(error)")
        } else {
            //Converting response to collection formate (array or dictionary)
            do {
                let jsonResult = (try JSONSerialization.jsonObject(with: data!, options:
                    JSONSerialization.ReadingOptions.mutableContainers))

                //success code
            } catch {
                //failure code
            }
        }
    }

    task.resume()

It's been quite sometime since I asked this question. Now I understand it more clearly, I'm going to put a more complete answer to help others.

In Web API, it's very simple to remember how parameter binding is happening.

• if you POST simple types, Web API tries to bind it from the URL

• if you POST complex type, Web API tries to bind it from the body of the request (this uses a media-type formatter).

• If you want to bind a complex type from the URL, you'll use [FromUri] in your action parameter. The limitation of this is down to how long your data going to be and if it exceeds the url character limit.

  public IHttpActionResult Put([FromUri] ViewModel data) { ... }

• If you want to bind a simple type from the request body, you'll use [FromBody] in your action parameter.

  public IHttpActionResult Put([FromBody] string name) { ... }

as a side note, say you are making a PUT request (just a string) to update something. If you decide not to append it to the URL and pass as a complex type with just one property in the model, then the data parameter in jQuery ajax will look something like below. The object you pass to data parameter has only one property with empty property name.

var myName = 'ABC';
$.ajax({url:.., data: {'': myName}});

and your web api action will look something like below.

public IHttpActionResult Put([FromBody] string name){ ... }

This asp.net page explains it all. http://www.asp.net/web-api/overview/formats-and-model-binding/parameter-binding-in-aspnet-web-api

You have to select "Refresh Dependencies" in the "Gradle" context menu that appears when you right-click the project in the Package Explorer.

Take a look at the JavaDoc for RestTemplate.

There is the corresponding getForObject methods that are the HTTP GET equivalents of postForObject, but they doesn't appear to fulfil your requirements of "GET with headers", as there is no way to specify headers on any of the calls.

Looking at the JavaDoc, no method that is HTTP GET specific allows you to also provide header information. There are alternatives though, one of which you have found and are using. The exchange methods allow you to provide an HttpEntity object representing the details of the request (including headers). The execute methods allow you to specify a RequestCallback from which you can add the headers upon its invocation.

this is because of the object is not acceptable at jsp... use his

add this dependency or any other send converted json string to jsp...

for example add this in pom

<dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.6.2</version>
    </dependency>

and use code like that:

@RequestMapping(value="foobar.htm", method = RequestMethod.GET)
    public @ResponseBody String getShopInJSON() {
        Foo f = new Foo();
        f.setX(1);
        f.setY(2);
        f.setDescription("desc");
        return new Gson().toJson(f); //converted object into json string
    }//return converted json string

In $('.editor-container').click(function (){}), shouldn't var url = "/area/controller/MyEditAction"; be var url = "/area/controller/EditPartData";?

Objective C

Post API with parameters and validate with url to navigate if json
response key with status:"success"

NSString *string= [NSString stringWithFormat:@"url?uname=%@&pass=%@&uname_submit=Login",self.txtUsername.text,self.txtPassword.text];
    NSLog(@"%@",string);
    NSURL *url = [NSURL URLWithString:string];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    [request setHTTPMethod:@"POST"];
    NSURLResponse *response;
    NSError *err;
    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
    NSLog(@"responseData: %@", responseData);
    NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
    NSLog(@"responseData: %@", str);
        NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseData
                                                         options:kNilOptions
                                                           error:nil];
    NSDictionary* latestLoans = [json objectForKey:@"status"];
    NSString *str2=[NSString stringWithFormat:@"%@", latestLoans];
    NSString *str3=@"success";
    if ([str3 isEqualToString:str2 ])
    {
        [self performSegueWithIdentifier:@"move" sender:nil];
        NSLog(@"successfully.");
    }
    else
    {
        UIAlertController *alert= [UIAlertController
                                 alertControllerWithTitle:@"Try Again"
                                 message:@"Username or Password is Incorrect."
                                 preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction* ok = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault
                                                   handler:^(UIAlertAction * action){
                                                       [self.view endEditing:YES];
                                                   }
                             ];
        [alert addAction:ok];
        [[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setTintColor:[UIColor redColor]];
        [self presentViewController:alert animated:YES completion:nil];
        [self.view endEditing:YES];
      }

JSON Response : {"status":"success","user_id":"58","user_name":"dilip","result":"You have been logged in successfully"} Working code

**

I think one should use singleton pattern to avoid having to create instances of the HttpClient and closing it all the time. If you are using .Net 4.0 you could use a sample code as below. for more information on singleton pattern check here.

class HttpClientSingletonWrapper : HttpClient
{
    private static readonly Lazy<HttpClientSingletonWrapper> Lazy= new Lazy<HttpClientSingletonWrapper>(()=>new HttpClientSingletonWrapper()); 

    public static HttpClientSingletonWrapper Instance {get { return Lazy.Value; }}

    private HttpClientSingletonWrapper()
    {
    }
}

Use the code as below.

var client = HttpClientSingletonWrapper.Instance;

I got this error after I accidentally published one website into the directory of another website. The two websites had different versions of .net. What fixed it for me was changing the application pool. To do that, in the IIS manager:

click the website => Advanced Settings... (on the right) => click to the right of Application Pool => a button with "..." should appear => select ".NET v4.5 Classic"

If that application pool doesn't work, try some of the others.

in my case the solution was to set the proxy to "native" I had configured the proxy under linux with cntlm and also in Firefox (used as eclipse browser also.

I have got this error only when debugging the ASP .Net Application.

I also had Session["mysession"] kind of variables added into my Watch of Visual Studio.

the issue was solved Once, I have removed the Session Variables from watch.

You can easily do this using node-fetch if you are pulling from http(s) URIs.

From the readme:

fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')
    .then(res => res.buffer())
    .then(buffer => console.log)

One of the basic and simple thing which leads to this error is: No Internet Connection

Turn on the Internet Connection of your device first.

(May be we'll forget to do so)

In my case, the route signature was different from the method parameter. I had id, but I was accepting documentId as parameter, that caused the problem.

[Route("Documents/{id}")]   <--- caused the webapi error
[Route("Documents/{documentId}")] <-- solved
public Document Get(string documentId)
{
  ..
}

Since version 1.6 we have new annotation JsonSerialize (in version 1.9.9 for example).

Example:

@JsonSerialize(include=Inclusion.NON_NULL)
public class Test{
...
}

Default value is ALWAYS.

In old versions you can use JsonWriteNullProperties, which is deprecated in new versions. Example:

@JsonWriteNullProperties(false)
public class Test{
    ...
}

Since there is only one global ServicePointManager, setting ServicePointManager.ServerCertificateValidationCallback will yield the result that all subsequent requests will inherit this policy. Since it is a global "setting" it would be prefered to set it in the Application_Start method in Global.asax.

Setting the callback overrides the default behaviour and you can yourself create a custom validation routine.

For Nginx, the only thing that worked for me was adding this header:

add_header 'Access-Control-Allow-Headers' 'Authorization,Content-Type,Accept,Origin,User-Agent,DNT,Cache-Control,X-Mx-ReqToken,Keep-Alive,X-Requested-With,If-Modified-Since';

Along with the Access-Control-Allow-Origin header:

add_header 'Access-Control-Allow-Origin' '*';

Then reloaded the nginx config and it worked great. Credit https://gist.github.com/algal/5480916.

As mentioned in the excellent answer by janoside, you need to construct the JSON string and set it as a StringEntity.

To construct the JSON string, you can use any library or method you are comfortable with. Jackson library is one easy example:

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;

ObjectMapper mapper = new ObjectMapper();
ObjectNode node = mapper.createObjectNode();
node.put("name", "value"); // repeat as needed
String JSON_STRING = node.toString();
postMethod.setEntity(new StringEntity(JSON_STRING, ContentType.APPLICATION_JSON));

Accepted answer is right but lacks solution. To avoid this error, you can add setHttpRequestRetryHandler (or setRetryHandler for apache components 4.4) for your HTTP client like in this answer.

Ok found the answer. exchange() is the best way. Oddly the HttpEntity class doesn't have a setBody() method (it has getBody()), but it is still possible to set the request body, via the constructor.

// Create the request body as a MultiValueMap
MultiValueMap<String, String> body = new LinkedMultiValueMap<String, String>();     

body.add("field", "value");

// Note the body object as first parameter!
HttpEntity<?> httpEntity = new HttpEntity<Object>(body, requestHeaders);

ResponseEntity<MyModel> response = restTemplate.exchange("/api/url", HttpMethod.POST, httpEntity, MyModel.class);

For httpclient 4.1.x you can set the proxy like this (taken from this example):

    HttpHost proxy = new HttpHost("127.0.0.1", 8080, "http");

    DefaultHttpClient httpclient = new DefaultHttpClient();
    try {
        httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

        HttpHost target = new HttpHost("issues.apache.org", 443, "https");
        HttpGet req = new HttpGet("/");

        System.out.println("executing request to " + target + " via " + proxy);
        HttpResponse rsp = httpclient.execute(target, req);
        ...
    } finally {
        // When HttpClient instance is no longer needed,
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();
    }

I was attempting something similar, and the RoboSpice example helped me work it out:

HttpHeaders headers = new HttpHeaders();
headers.set("Accept", "application/json");

HttpEntity<String> request = new HttpEntity<>(input, createHeader());

String url = "http://awesomesite.org";
Uri.Builder uriBuilder = Uri.parse(url).buildUpon();
uriBuilder.appendQueryParameter(key, value);
uriBuilder.appendQueryParameter(key, value);
...

String url = uriBuilder.build().toString();

HttpEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, request , String.class);

There is org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean for a long time. Starting from 1.2 release of Spring Boot there is org.springframework.http.converter.json.Jackson2ObjectMapperBuilder for Java Config.

In String Boot configuration can be as simple as:

spring.jackson.deserialization.<feature_name>=true|false
spring.jackson.generator.<feature_name>=true|false
spring.jackson.mapper.<feature_name>=true|false
spring.jackson.parser.<feature_name>=true|false
spring.jackson.serialization.<feature_name>=true|false
spring.jackson.default-property-inclusion=always|non_null|non_absent|non_default|non_empty

in classpath:application.properties or some Java code in @Configuration class:

@Bean
public Jackson2ObjectMapperBuilder jacksonBuilder() {
    Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder();
    builder.indentOutput(true).dateFormat(new SimpleDateFormat("yyyy-MM-dd"));
    return builder;
}

See:

• Official docs 74.3 Customize the Jackson ObjectMapper
• https://dzone.com/articles/latest-jackson-integration
• How do you globally set Jackson to ignore unknown properties within Spring?
• http://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.html

Have you tried it without the ANSI join ?

CREATE MATERIALIZED VIEW MV_Test
  NOLOGGING
  CACHE
  BUILD IMMEDIATE 
  REFRESH FAST ON COMMIT 
  AS
SELECT V.*, P.* FROM TPM_PROJECTVERSION V,TPM_PROJECT P 
WHERE  P.PROJECTID = V.PROJECTID

All you need is a <clear /> tag. Here's an example:

<configuration>
  <system.webServer>
    <defaultDocument>
      <files>
        <clear />
        <add value="default.aspx" />
      </files>
    </defaultDocument>
  </system.webServer>
</configuration>

Because this is the first google hit for "HttpMediaTypeNotAcceptableException" I like to add another problem that I've stumbled upon which resulted in HttpMediaTypeNotAcceptableException too.

In my case it was a controller that specified "produces", e.g.:

@RequestMapping(path = "/mypath/{filename}", method = RequestMethod.GET,
        produces = { MediaType.APPLICATION_XML_VALUE }

because I wanted to serve an XML file. At the same time I'm using a class with "@ControllerAdvice" to catch Exceptions, e.g. if the requested file wasn't found. The Exception handler was returning JSON so the client (angular) app could display the error message somewhere in the SPA.

Now the controller wanted to return XML but the Exception Handler was returning JSON so the HttpMediaTypeNotAcceptableException was raised. I solved this by adding JSON as possible "produces" value:

produces = { MediaType.APPLICATION_XML_VALUE, MediaType.APPLICATION_JSON_VALUE}

Hope this helps somebody else. :-)

Just enable the "Build Active Architecture Only" option

in PROJECT >> Build Settings >> Build Active Architecture Only >> Yes

remember to check if they are also enabled in each target

You can use HttpClient and HttpPost to send a json string as body:

public void post(String completeUrl, String body) {
    HttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost(completeUrl);
    httpPost.setHeader("Content-type", "application/json");
    try {
        StringEntity stringEntity = new StringEntity(body);
        httpPost.getRequestLine();
        httpPost.setEntity(stringEntity);

        httpClient.execute(httpPost);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Json body example:

{
  "param1": "value 1",
  "param2": 123,
  "testStudentArray": [
    {
      "name": "Test Name 1",
      "gpa": 3.5
    },
    {
      "name": "Test Name 2",
      "gpa": 3.8
    }
  ]
}

client text protocol

POST http://127.0.0.1/bom/create HTTP/1.1
Content-Type: application/json
User-Agent: PostmanRuntime/7.25.0
Accept: */*
Postman-Token: 50ecfbfe-741f-4a2b-a3d3-cdf162ada27f
Host: 127.0.0.1
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Content-Length: 405

{
  "fwoid": 1,
  "list": [
    {
      "bomIndex": "10001",
      "desc": "?GH 1.25 13pin ???? ??",
      "pn": "084.0001.0036",
      "preUse": 1,
      "type": "?? ???-??PCB??"
    },
     {
      "bomIndex": "10002",
      "desc": "????-?????",
      "pn": "Z.08.013.0051",
      "preUse": 1,
      "type": "E060A0302301"
    }
  ]
}
HTTP/1.1 200 OK
Connection: keep-alive
Vary: Origin
Vary: Access-Control-Request-Method
Vary: Access-Control-Request-Headers
Content-Type: application/json
Date: Mon, 01 Jun 2020 11:23:42 GMT
Content-Length: 40

{"code":"0","message":"BOM????"}

a springboot Controller code as below:

@PostMapping("/bom/create")
@ApiOperation(value = "??BOM")
@BusinessOperation(module = "BOM",methods = "??BOM")
public JsonResult save(@RequestBody BOMSaveQuery query)
{
    return bomService.saveBomList(query);
}

when i debug on loopback interface,it works ok. while deploy on internet server via bat command, i got an error

ServletInvocableHandlerMethod - Could not resolve parameter [0] in public XXXController.save(com.h2.mes.query.BOMSaveQuery): JSON parse error: Invalid UTF-8 middle byte 0x3f; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Invalid UTF-8 middle byte 0x3f
 at [Source: (PushbackInputStream); line: 9, column: 32] (through reference chain: com.h2.mes.query.BOMSaveQuery["list"]->java.util.ArrayList[0]->com.h2.mes.vo.BOMVO["type"])
2020-06-01 15:37:50.251 MES [XNIO-1 task-13] WARN  o.s.w.s.m.s.DefaultHandlerExceptionResolver - Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Invalid UTF-8 middle byte 0x3f; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Invalid UTF-8 middle byte 0x3f
 at [Source: (PushbackInputStream); line: 9, column: 32] (through reference chain: com.h2.mes.query.BOMSaveQuery["list"]->java.util.ArrayList[0]->com.h2.mes.vo.BOMVO["type"])]
2020-06-01 15:37:50.251 MES [XNIO-1 task-13] DEBUG o.s.web.servlet.DispatcherServlet - Completed 400 BAD_REQUEST
2020-06-01 15:37:50.251 MES [XNIO-1 task-13] DEBUG o.s.web.servlet.DispatcherServlet - "ERROR" dispatch for POST "/error", parameters={}

add a jvm arguement works for me. java -Dfile.encoding=UTF-8

In Addition you also need to be sure that you have

 <context:annotation-config/> 

in your SPring configuration xml.

I also would recommend you to read this blog post. It helped me alot. Spring blog - Ajax Simplifications in Spring 3.0

Update:

just checked my working code where I have @RequestBody working correctly. I also have this bean in my config:

<bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
 <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
  <list>
    <ref bean="jacksonMessageConverter"/>
  </list>
</property>
</bean>

May be it would be nice to see what Log4j is saying. it usually gives more information and from my experience the @RequestBody will fail if your request's content type is not Application/JSON. You can run Fiddler 2 to test it, or even Mozilla Live HTTP headers plugin can help.

The Answer by McDowell is correct one. However if you try other suggestion in few of the posts above.

HttpEntity responseEntity = httpResponse.getEntity();
if(responseEntity!=null) {
   response = EntityUtils.toString(responseEntity);
   S.O.P (response);
}

Then it will give you illegalStateException stating that content is already consumed.

By using Spring 3.1.x and 3.2.x, this is how you should do it:

The controller method:

@RequestMapping("/photo2")
public @ResponseBody byte[] testphoto() throws IOException {
    InputStream in = servletContext.getResourceAsStream("/images/no_image.jpg");
    return IOUtils.toByteArray(in);
}

And the mvc annotation in servlet-context.xml file:

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter">
            <property name="supportedMediaTypes">
                <list>
                    <value>image/jpeg</value>
                    <value>image/png</value>
                </list>
            </property>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

It's an inlined image (png), encoded in base64. It can make a page faster: the browser doesn't have to query the server for the image data separately, saving a round trip.

(It can also make it slower if abused: these resources are not cached, so the bytes are included in each page load.)

You can try this code for send json string

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:ARRAY_CONTAIN_JSON_STRING options:NSJSONWritin*emphasized text*gPrettyPrinted error:NULL];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSString *WS_test = [NSString stringWithFormat:@"www.test.com?xyz.php&param=%@",jsonString];

I am New to Jackson API, when i got the "org.codehaus.jackson.map.JsonMappingException: No serializer found for class com.company.project.yourclass" , I added the getter and setter to com.company.project.yourclass, that helped me to use the ObjectMapper's mapper object to write the java object into a flat file.

Hello pls use this class to improve your post method

public static JSONObject doPostRequest(HashMap<String, String> data, String url) {

    try {
        RequestBody requestBody;
        MultipartBuilder mBuilder = new MultipartBuilder().type(MultipartBuilder.FORM);

        if (data != null) {


            for (String key : data.keySet()) {
                String value = data.get(key);
                Utility.printLog("Key Values", key + "-----------------" + value);

                mBuilder.addFormDataPart(key, value);

            }
        } else {
            mBuilder.addFormDataPart("temp", "temp");
        }
        requestBody = mBuilder.build();


        Request request = new Request.Builder()
                .url(url)
                .post(requestBody)
                .build();

        OkHttpClient client = new OkHttpClient();
        Response response = client.newCall(request).execute();
        String responseBody = response.body().string();
        Utility.printLog("URL", url);
        Utility.printLog("Response", responseBody);
        return new JSONObject(responseBody);

    } catch (UnknownHostException | UnsupportedEncodingException e) {

        JSONObject jsonObject=new JSONObject();

        try {
            jsonObject.put("status","false");
            jsonObject.put("message",e.getLocalizedMessage());
        } catch (JSONException e1) {
            e1.printStackTrace();
        }
        Log.e(TAG, "Error: " + e.getLocalizedMessage());
    } catch (Exception e) {
        e.printStackTrace();
        JSONObject jsonObject=new JSONObject();

        try {
            jsonObject.put("status","false");
            jsonObject.put("message",e.getLocalizedMessage());
        } catch (JSONException e1) {
            e1.printStackTrace();
        }
        Log.e(TAG, "Other Error: " + e.getLocalizedMessage());
    }
    return null;
}

You may simply use MultipartHttpServletRequest

Example:

 @RequestMapping(value={"/upload"}, method = RequestMethod.POST,produces = "text/html; charset=utf-8")
 @ResponseBody
 public String upload(MultipartHttpServletRequest request /*@RequestBody MultipartFile file*/){
    String responseMessage = "OK";
    MultipartFile file = request.getFile("file");
    String param = request.getParameter("param");
    try {
        System.out.println(file.getOriginalFilename());
        System.out.println("some param = "+param);
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(file.getInputStream(), StandardCharsets.UTF_8));
        // read file
    }
    catch(Exception ex){
        ex.printStackTrace();
        responseMessage = "fail";
    }
     return responseMessage;
}

Where parameters names in request.getParameter() must be same with corresponding frontend names.

Note, that file extracted via getFile() while other additional parameters extracted via getParameter()

If you dont want to process response

private RestTemplate restTemplate = new RestTemplate();
restTemplate.postForObject(serviceURL, request, Void.class);

If you need response to process

String result = restTemplate.postForObject(url, entity, String.class);

package com.your.package.spring.fix;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

/**
 * @author Szilard_Jakab (JaKi)
 * Workaround for Spring 3 @ResponseBody issue - get incorrectly 
   encoded parameters     from the URL (in example @ JSON response)
 * Tested @ Spring 3.0.4
 */
public class RepairWrongUrlParamEncoding {
    private static String restoredParamToOriginal;

    /**
    * @param wrongUrlParam
    * @return Repaired url param (UTF-8 encoded)
    * @throws UnsupportedEncodingException
    */
    public static String repair(String wrongUrlParam) throws 
                                            UnsupportedEncodingException {
    /* First step: encode the incorrectly converted UTF-8 strings back to 
                  the original URL format
    */
    restoredParamToOriginal = URLEncoder.encode(wrongUrlParam, "ISO-8859-1");

    /* Second step: decode to UTF-8 again from the original one
    */
    return URLDecoder.decode(restoredParamToOriginal, "UTF-8");
    }
}

After I have tried lot of workaround for this issue.. I thought this out and it works fine.

base64 encode/decode example:

import base64

mystr = 'O João mordeu o cão!'

# Encode
mystr_encoded = base64.b64encode(mystr.encode('utf-8'))
# b'TyBKb8OjbyBtb3JkZXUgbyBjw6NvIQ=='

# Decode
mystr_encoded = base64.b64decode(mystr_encoded).decode('utf-8')
# 'O João mordeu o cão!'

import urllib
f = open('00000001.jpg','wb')
f.write(urllib.urlopen('http://www.gunnerkrigg.com//comics/00000001.jpg').read())
f.close()

If 'they' are using a self-signed certificate it is up to them to take the steps required to make their server usable. Specifically that means providing their certificate to you offline in a trustworthy way. So get them to do that. You then import that into your truststore using the keytool as described in the JSSE Reference Guide. Don't even think about the insecure TrustManager posted here.

EDIT For the benefit of the seventeen (!) downvoters, and numerous commenters below, who clearly have not actually read what I have written here, this is not a jeremiad against self-signed certificates. There is nothing wrong with self-signed certificates when implemented correctly. But, the correct way to implement them is to have the certificate delivered securely via an offline process, rather than via the unauthenticated channel they are going to be used to authenticate. Surely this is obvious? It is certainly obvious to every security-aware organization I have ever worked for, from banks with thousands of branches to my own companies. The client-side code-base 'solution' of trusting all certificates, including self-signed certificates signed by absolutely anybody, or any arbitary body setting itself up as a CA, is ipso facto not secure. It is just playing at security. It is pointless. You are having a private, tamperproof, reply-proof, injection-proof conversation with ... somebody. Anybody. A man in the middle. An impersonator. Anybody. You may as well just use plaintext.

Just pressing F5 is not always working.

why?

Because your ISP is also caching web data for you.

Solution: Force Refresh.

Force refresh your browser by pressing CTRL + F5 in Firefox or Chrome to clear ISP cache too, instead of just pressing F5

You then can see 200 response instead of 304 in the browser F12 developer tools network tab.

Another trick is to add question mark ? at the end of the URL string of the requested page:

http://localhost:52199/Customers/Create?

The question mark will ensure that the browser refresh the request without caching any previous requests.

Additionally in Visual Studio you can set the default browser to Chrome in Incognito mode to avoid cache issues while developing, by adding Chrome in Incognito mode as default browser, see the steps (self illustrated):

I have implemented data downloading functionality through FTP server and found the same exception there too while resuming that download. To resolve this exception, you will always have to disconnect from the previous session and create new instance of the Client and new connection with the server. This same approach could be helpful for HTTPClient too.

From http://hc.apache.org/httpclient-3.x/sslguide.html:

Protocol.registerProtocol("https", 
new Protocol("https", new MySSLSocketFactory(), 443));
HttpClient httpclient = new HttpClient();
GetMethod httpget = new GetMethod("https://www.whatever.com/");
try {
  httpclient.executeMethod(httpget);
      System.out.println(httpget.getStatusLine());
} finally {
      httpget.releaseConnection();
}

Where MySSLSocketFactory example can be found here. It references a TrustManager, which you can modify to trust everything (although you must consider this!)

I got this error by putting the <customErrors> tag inside of <system.webServer> instead of <system.web> where it belongs. There was a little squiggle under the <customErrors> tag but I didn't notice it right away.

Rather than using JavaScript perhaps try something like

<a href="#">

  <input type="submit" value="save" style="background: transparent none; border: 0px none; text-decoration: inherit; color: inherit; cursor: inherit" />

</a>

I found an article that explains why we need to do both Registry edit and use a tool such as UrlScan to set this up in IIS properly. I followed it on our servers and it works: http://blogs.msdn.com/b/varunm/archive/2013/04/23/remove-unwanted-http-response-headers.aspx. If you only use UrlScan but don't do the registry change, during the time you are stopping World Wide Publishing Service, your server will return server http response from the HTTP.sys file. Also, here are common pitfals of using UrlScan tool: http://msdn.microsoft.com/en-us/library/ff648552.aspx#ht_urlscan_008

Option One:

This message is often due to an IIS 7 config problem. If you are used to creating a virtual directory pointing to the folder where your service resides, that no longer works. Now, you need to use the "Create Application..." option instead.

Other Options:

• WCF: The type provided as the Service attribute could not be found
• The type , provided as the Service attribute value in the ServiceHost directive could not be found.

The javadoc for SocketException states that it is

Thrown to indicate that there is an error in the underlying protocol such as a TCP error

In your case it seems that the connection has been closed by the server end of the connection. This could be an issue with the request you are sending or an issue at their end.

To aid debugging you could look at using a tool such as Wireshark to view the actual network packets. Also, is there an alternative client to your Java code that you could use to test the web service? If this was successful it could indicate a bug in the Java code.

As you are using Commons HTTP Client have a look at the Common HTTP Client Logging Guide. This will tell you how to log the request at the HTTP level.

I think this part of code make changes to the context.

 Page page = BuildManager.CreateInstanceFromVirtualPath(
                        m_VirtualPath, 
                        typeof(Page)) as Page;// IHttpHandler;

Also this part of code is useless:

 if (page != null)
 {
     return page;
 }
 return page;

It will always return the page wither it's null or not.

The way I get an element to go 100% width of the device is use negative left and right margins on it. The body has a padding of 24px, so that's what you can use negative margins for:

element{
    margin-left:  -24px;
    margin-right: -24px;
    padding-left:  24px;
    padding-right:  24px;
}

char subbuff[5];
memcpy( subbuff, &buff[10], 4 );
subbuff[4] = '\0';

Job done :)

Here is how you set the cookie with JavaScript:

below code has been taken from https://www.w3schools.com/js/js_cookies.asp

function setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays*24*60*60*1000));
    var expires = "expires="+ d.toUTCString();
    document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}

now you can get the cookie with below function:

function getCookie(cname) {
    var name = cname + "=";
    var decodedCookie = decodeURIComponent(document.cookie);
    var ca = decodedCookie.split(';');
    for(var i = 0; i <ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return "";
}

And finally this is how you check the cookie:

function checkCookie() {
    var username = getCookie("username");
    if (username != "") {
        alert("Welcome again " + username);
    } else {
        username = prompt("Please enter your name:", "");
        if (username != "" && username != null) {
            setCookie("username", username, 365);
        }
    }
}

If you want to delete the cookie just set the expires parameter to a passed date:

document.cookie = "username=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;";

I couldn't get any of the commands on this page to work for me: the sed solution added a newline to the end of all the files it processed, and the perl solution was unable to accept enough arguments from find. I found this solution which works perfectly:

find . -type f -name '*.[hm]' -print0 
    | xargs -0 perl -pi -e 's/search_regex/replacement_string/g'

This will recurse down the current directory tree and replace search_regex with replacement_string in any files ending in .h or .m.

I have also used rpl for this purpose in the past.

html, body, #app, #app>div {
  height: 100%
}

This will ensure all the chain to be height: 100%

For me, it was Maps Embed API that I had to enable.

In the Google Cloud Console

Go to API tab, look through the Additional APIs section and try to enable any map-related APIs.

Some good answers here but just adding an approach that won't be affected by borders and padding:

<style type="text/css">
html, body{width: 100%; height: 100%; padding: 0; margin: 0}
div{position: absolute; padding: 1em; border: 1px solid #000}
#nw{background: #f09; top: 0; left: 0; right: 50%; bottom: 50%}
#ne{background: #f90; top: 0; left: 50%; right: 0; bottom: 50%}
#sw{background: #009; top: 50%; left: 0; right: 50%; bottom: 0}
#se{background: #090; top: 50%; left: 50%; right: 0; bottom: 0}
</style>

<div id="nw">test</div>
<div id="ne">test</div>
<div id="sw">test</div>
<div id="se">test</div>

Your code works for me. Here is my test case:

mysql> CREATE TABLE carmake (country ENUM('Canada', 'United States'));
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW CREATE TABLE carmake;
+---------+-------------------------------------------------------------------------------------------------------------------------+
| Table   | Create Table                                                                                                            |
+---------+-------------------------------------------------------------------------------------------------------------------------+
| carmake | CREATE TABLE `carmake` (
  `country` enum('Canada','United States') default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 |
+---------+-------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> ALTER TABLE carmake CHANGE country country ENUM('Sweden','Malaysia');
Query OK, 0 rows affected (0.53 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql> SHOW CREATE TABLE carmake;
+---------+--------------------------------------------------------------------------------------------------------------------+
| Table   | Create Table                                                                                                       |
+---------+--------------------------------------------------------------------------------------------------------------------+
| carmake | CREATE TABLE `carmake` (
  `country` enum('Sweden','Malaysia') default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 |
+---------+--------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

What error are you seeing?

FWIW this would also work:

ALTER TABLE carmake MODIFY COLUMN country ENUM('Sweden','Malaysia');

I would actually recommend a country table rather than enum column. You may have hundreds of countries which would make for a rather large and awkward enum.

EDIT: Now that I can see your error message:

ERROR 1265 (01000): Data truncated for column 'country' at row 1.

I suspect you have some values in your country column that do not appear in your ENUM. What is the output of the following command?

SELECT DISTINCT country FROM carmake;

ANOTHER EDIT: What is the output of the following command?

SHOW VARIABLES LIKE 'sql_mode';

Is it STRICT_TRANS_TABLES or STRICT_ALL_TABLES? That could lead to an error, rather than the usual warning MySQL would give you in this situation.

YET ANOTHER EDIT: Ok, I now see that you definitely have values in the table that are not in the new ENUM. The new ENUM definition only allows 'Sweden' and 'Malaysia'. The table has 'USA', 'India' and several others.

LAST EDIT (MAYBE): I think you're trying to do this:

ALTER TABLE carmake CHANGE country country ENUM('Italy', 'Germany', 'England', 'USA', 'France', 'South Korea', 'Australia', 'Spain', 'Czech Republic', 'Sweden', 'Malaysia') DEFAULT NULL;

if ($elem.parents('.left').length) {

}

You can use "\\r\\n" also for the new line in powershell. I have used this in servicenow tool.

In my case "\r\n" s not working so i tried "\\r\\n" as "\" this symbol work as escape character in powershell.

I've historically rolled my own access at a low level (XML generation and parsing) to deal with the occasional need to do SOAP style requests from Objective-C. That said, there's a library available called SOAPClient (soapclient) that is open source (BSD licensed) and available on Google Code (mac-soapclient) that might be of interest.

I won't attest to it's abilities or effectiveness, as I've never used it or had to work with it's API's, but it is available and might provide a quick solution for you depending on your needs.

Apple had, at one time, a very broken utility called WS-MakeStubs. I don't think it's available on the iPhone, but you might also be interested in an open-source library intended to replace that - code generate out Objective-C for interacting with a SOAP client. Again, I haven't used it - but I've marked it down in my notes: wsdl2objc

As per this paper Finding the Kth largest item in a list of n items the following algorithm will take O(n) time in worst case.

1. Divide the array in to n/5 lists of 5 elements each.
2. Find the median in each sub array of 5 elements.
3. Recursively ?nd the median of all the medians, lets call it M
4. Partition the array in to two sub array 1st sub-array contains the elements larger than M , lets say this sub-array is a1 , while other sub-array contains the elements smaller then M., lets call this sub-array a2.
5. If k <= |a1|, return selection (a1,k).
6. If k- 1 = |a1|, return M.
7. If k> |a1| + 1, return selection(a2,k -a1 - 1).

Analysis: As suggested in the original paper:

We use the median to partition the list into two halves(the first half, if k <= n/2 , and the second half otherwise). This algorithm takes time cn at the first level of recursion for some constant c, cn/2 at the next level (since we recurse in a list of size n/2), cn/4 at the third level, and so on. The total time taken is cn + cn/2 + cn/4 + .... = 2cn = o(n).

Why partition size is taken 5 and not 3?

As mentioned in original paper:

Dividing the list by 5 assures a worst-case split of 70 - 30. Atleast half of the medians greater than the median-of-medians, hence atleast half of the n/5 blocks have atleast 3 elements and this gives a 3n/10 split, which means the other partition is 7n/10 in worst case. That gives T(n) = T(n/5)+T(7n/10)+O(n). Since n/5+7n/10 < 1, the worst-case running time isO(n).

Now I have tried to implement the above algorithm as:

public static int findKthLargestUsingMedian(Integer[] array, int k) {
        // Step 1: Divide the list into n/5 lists of 5 element each.
        int noOfRequiredLists = (int) Math.ceil(array.length / 5.0);
        // Step 2: Find pivotal element aka median of medians.
        int medianOfMedian =  findMedianOfMedians(array, noOfRequiredLists);
        //Now we need two lists split using medianOfMedian as pivot. All elements in list listOne will be grater than medianOfMedian and listTwo will have elements lesser than medianOfMedian.
        List<Integer> listWithGreaterNumbers = new ArrayList<>(); // elements greater than medianOfMedian
        List<Integer> listWithSmallerNumbers = new ArrayList<>(); // elements less than medianOfMedian
        for (Integer element : array) {
            if (element < medianOfMedian) {
                listWithSmallerNumbers.add(element);
            } else if (element > medianOfMedian) {
                listWithGreaterNumbers.add(element);
            }
        }
        // Next step.
        if (k <= listWithGreaterNumbers.size()) return findKthLargestUsingMedian((Integer[]) listWithGreaterNumbers.toArray(new Integer[listWithGreaterNumbers.size()]), k);
        else if ((k - 1) == listWithGreaterNumbers.size()) return medianOfMedian;
        else if (k > (listWithGreaterNumbers.size() + 1)) return findKthLargestUsingMedian((Integer[]) listWithSmallerNumbers.toArray(new Integer[listWithSmallerNumbers.size()]), k-listWithGreaterNumbers.size()-1);
        return -1;
    }

    public static int findMedianOfMedians(Integer[] mainList, int noOfRequiredLists) {
        int[] medians = new int[noOfRequiredLists];
        for (int count = 0; count < noOfRequiredLists; count++) {
            int startOfPartialArray = 5 * count;
            int endOfPartialArray = startOfPartialArray + 5;
            Integer[] partialArray = Arrays.copyOfRange((Integer[]) mainList, startOfPartialArray, endOfPartialArray);
            // Step 2: Find median of each of these sublists.
            int medianIndex = partialArray.length/2;
            medians[count] = partialArray[medianIndex];
        }
        // Step 3: Find median of the medians.
        return medians[medians.length / 2];
    }

Just for sake of completion, another algorithm makes use of Priority Queue and takes time O(nlogn).

public static int findKthLargestUsingPriorityQueue(Integer[] nums, int k) {
        int p = 0;
        int numElements = nums.length;
        // create priority queue where all the elements of nums will be stored
        PriorityQueue<Integer> pq = new PriorityQueue<Integer>();

        // place all the elements of the array to this priority queue
        for (int n : nums) {
            pq.add(n);
        }

        // extract the kth largest element
        while (numElements - k + 1 > 0) {
            p = pq.poll();
            k++;
        }

        return p;
    }

Both of these algorithms can be tested as:

public static void main(String[] args) throws IOException {
        Integer[] numbers = new Integer[]{2, 3, 5, 4, 1, 12, 11, 13, 16, 7, 8, 6, 10, 9, 17, 15, 19, 20, 18, 23, 21, 22, 25, 24, 14};
        System.out.println(findKthLargestUsingMedian(numbers, 8));
        System.out.println(findKthLargestUsingPriorityQueue(numbers, 8));
    }

As expected output is: 18 18

String arr= "[1,2]";
List<Integer> arrList= JSON.parseArray(arr,Integer.class).stream().collect(Collectors.toList());
Integer[] intArr = ArrayUtils.toObject(arrList.stream().mapToInt(Integer::intValue).toArray());

Actually, "narrow" or "partial" or "sparse" checkouts are under current, heavy development for Git. Note, you'll still have the full repository under .git. So, the other two posts are current for the current state of Git but it looks like we will be able to do sparse checkouts eventually. Checkout the mailing lists if you're interested in more details -- they're changing rapidly.

In my case, the culprit was not distinguish the main and test sources folder within pom.xml (generated by eclipse maven project)

<build>
    <sourceDirectory>src</sourceDirectory>
    ....
</build>

If you override default source folder settings in pom file, you must explicitly set the main AND test source folders!!!!

<build>
    <sourceDirectory>src/main/java</sourceDirectory>
    <testSourceDirectory>src/test/java</testSourceDirectory>
    ....
</build>

select col1, listaggr(col2,',') within group(Order by col2) from table group by col1 meaning aggregate the strings (col2) into list keeping the order n then afterwards deal with the duplicates as group by col1 meaning merge col1 duplicates in 1 group. perhaps this looks clean and simple as it should be and if in case you want col3 as well just you need to add one more listagg() that is select col1, listaggr(col2,',') within group(Order by col2),listaggr(col3,',') within group(order by col3) from table group by col1

You can do it in a single query:

Select t.Id, t.title, z.dupCount
From yourtable T
Join
   (select title, Count (*) dupCount
    from yourtable 
    group By title
    Having Count(*) > 1) z
   On z.title = t.Title
order By dupCount Desc

I use Ubuntu 12.04, I had to create the table, then do one of these:

Using local gives an error (mysql 5.5):

> LOAD DATA LOCAL INFILE "file.csv" INTO table inverter FIELDS TERMINATED BY ',';
ERROR 1148 (42000): The used command is not allowed with this MySQL version

LOAD DATA INFILE command is disabled by default for security reasons, re-enable it here and it should work: https://stackoverflow.com/a/16286112/445131

You can import the csv-file using mysqlimport:

mysqlimport -u root -p --fields-terminated-by=',' --local dbname tablename.csv

Note the csv-file must have same name before the extension as the table.

Just add the CSS rule (and the slightly improved mark-up) posted below and you should get the result that you're after.

CSS

.blank_row
{
    height: 10px !important; /* overwrites any other rules */
    background-color: #FFFFFF;
}

HTML

<tr class="blank_row">
    <td colspan="3"></td>
</tr>

Since I have no idea what your current stylesheet looks like I added the !important property just in case. If possible, though, you should remove it as one rarely wants to rely on !important declarations in a stylesheet considering the big possibility that they will mess it up later on.

Taken from the example on this site, I think this would be the most natural way of doing it, by filling in the header value and passing the header to the template.

This is to fill in the header Authorization:

String plainCreds = "willie:p@ssword";
byte[] plainCredsBytes = plainCreds.getBytes();
byte[] base64CredsBytes = Base64.encodeBase64(plainCredsBytes);
String base64Creds = new String(base64CredsBytes);

HttpHeaders headers = new HttpHeaders();
headers.add("Authorization", "Basic " + base64Creds);

And this is to pass the header to the REST template:

HttpEntity<String> request = new HttpEntity<String>(headers);
ResponseEntity<Account> response = restTemplate.exchange(url, HttpMethod.GET, request, Account.class);
Account account = response.getBody();

In some cases, static methods can be difficult to test, especially if they need to be mocked, which is why most mocking frameworks don't support them. I found this blog post to be very useful in determining how to mock static methods and classes.

Assuming the application you are attempting to run in the background is CLI based, you can try calling the scheduled jobs using Hidden Start

Also see: http://www.howtogeek.com/howto/windows/hide-flashing-command-line-and-batch-file-windows-on-startup/

You can use relative rules:

table td + td + td + td + td {
  border: none;
}

This only works if the number of columns isn't determined at runtime.

I think it is implemented in the engine as Matthias said: WHERE, GROUP BY, HAVING

Was trying to find a reference online that lists the entire sequence (i.e. "SELECT" comes right down at the bottom), but I can't find it. It was detailed in a "Inside Microsoft SQL Server 2005" book I read not that long ago, by Solid Quality Learning

Edit: Found a link: http://blogs.x2line.com/al/archive/2007/06/30/3187.aspx

You could use sparse(a), which would return

(1,2) 1

(1,4) 3

This allows you to keep the information about where your non-zero entries used to be.

document.getElementById("elementID").scrollIntoView();

Same thing, but wrapping it in a function:

function scrollIntoView(eleID) {
   var e = document.getElementById(eleID);
   if (!!e && e.scrollIntoView) {
       e.scrollIntoView();
   }
}

This even works in an IFrame on an iPhone.

Example of using getElementById: http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_document_getelementbyid

<?php
Class Database{
    public $db;
    public $host   = DB_HOST;
    public $user   = DB_USER;
    public $pass   = DB_PASS;
    public $dbname = DB_NAME;

    public $link;
    public $error;

    public function __construct(){
        $this->connectDB();
    }
    private function connectDB(){
    $this->link = new mysqli($this->host, $this->user, $this->pass, $this->dbname);
    if(!$this->link){
        $this->error ="Connection fail".$this->link->connect_error;
        return false;
    }
 }

    // Select or Read data

    public function select($query){
        $result = $this->link->query($query) or die($this->link->error.__LINE__);
        if($result->num_rows > 0){
            return $result;
        } else {
            return false;
        }
    }

}
 $db = new Database();
$query = "SELECT * FROM table_name WHERE id > '$current_postid' ORDER BY ID ASC LIMIT 1";
$postid = $db->select($query);
if ($postid) {
  while ($result = $postid->fetch_assoc()) { 
        echo $result['id'];
    } 

  } ?>

private void buttonHook_Click(object sender, EventArgs e)
{
    // Hooks only into specified Keys (here "A" and "B").
    // (***) Use this constructor

    _globalKeyboardHook = new GlobalKeyboardHook(new Keys[] { Keys.A, Keys.B });

    // Hooks into all keys.
    // (***) Or this - not both

    _globalKeyboardHook = new GlobalKeyboardHook();
    _globalKeyboardHook.KeyboardPressed += OnKeyPressed;
}

And then is working fine.

The top solutions here did not work for me out-of-the-box, so I came up with this which should work for any horizontal scrolling collection view with flow layout and only one section:

- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
    {
    // Add inset to the collection view if there are not enough cells to fill the width.
    CGFloat cellSpacing = ((UICollectionViewFlowLayout *) collectionViewLayout).minimumLineSpacing;
    CGFloat cellWidth = ((UICollectionViewFlowLayout *) collectionViewLayout).itemSize.width;
    NSInteger cellCount = [collectionView numberOfItemsInSection:section];
    CGFloat inset = (collectionView.bounds.size.width - (cellCount * cellWidth) - ((cellCount - 1)*cellSpacing)) * 0.5;
    inset = MAX(inset, 0.0);
    return UIEdgeInsetsMake(0.0, inset, 0.0, 0.0);
    }

You can always use the ( <condition> ? <value if true> : <value if false> ) syntax (it's called the ternary operator - thanks to Mark for remining me :) ).

If <condition> is true, the statement would be evaluated as <value if true>. If not, it would be evaluated as <value if false>

For instance:

$fourteen = 14;
$twelve = 12;
echo "Fourteen is ".($fourteen > $twelve ? "more than" : "not more than")." twelve";

This is the same as:

$fourteen = 14;
$twelve = 12;
if($fourteen > 12) {
  echo "Fourteen is more than twelve";
}else{
  echo "Fourteen is not more than twelve";
}

Try using below code:

private enum ElementStatus{
        VISIBLE,
        NOTVISIBLE,
        ENABLED,
        NOTENABLED,
        PRESENT,
        NOTPRESENT
    }
    private ElementStatus isElementVisible(WebDriver driver, By by,ElementStatus getStatus){
        try{
            if(getStatus.equals(ElementStatus.ENABLED)){
                if(driver.findElement(by).isEnabled())
                    return ElementStatus.ENABLED;
                return ElementStatus.NOTENABLED; 
            }
            if(getStatus.equals(ElementStatus.VISIBLE)){
                if(driver.findElement(by).isDisplayed())
                    return ElementStatus.VISIBLE;
                return ElementStatus.NOTVISIBLE;
            }
            return ElementStatus.PRESENT;
        }catch(org.openqa.selenium.NoSuchElementException nse){
            return ElementStatus.NOTPRESENT;
        }
    }

I hate foo and bar .. who dreamed up these non descriptive terms in programming anyway?

my $oldstring = "replace donotreplace replace donotreplace replace donotreplace";

my $newstring = $oldstring;
$newstring =~ s/replace/newword/g; # inplace replacement

print $newstring;
%: newword donotreplace newword donotreplace newword donotreplace

Every time you start a session (applies to PHP version 5.2.54), session_start() creates a new session id.

Here is the fix that worked for me.

File1.php

session_id('mySessionID'); //SET id first before calling  session start
session_start();

$name = "Nitin Hurkadli";
$_SESSION['username'] = $name;

File2.php

session_id('mySessionID'); 
session_start();

$name = $_SESSION['username'];
echo "Hello  " . $name;

Try:

//Your Code here
$pid = pcntl_fork();
if ($pid == -1) {
     die('could not fork');
}
else if ($pid)
{
echo("Bye")  
}
else
{
     //Do Post Processing
}

This will NOT work as an apache module, you need to be using CGI.

According to this link, it is possible to use ddms in the tools directory of the android sdk to take screen captures.

To do this within an application (and not during development), there are also applications to do so. But as @zed_0xff points out it certainly requires root.

Every time you call the jQuery() function, a new object is created and returned. So even equality checks on the same selectors will fail.

<div id="a">test</div>

$('#a') == $('#a') // false

The resulting jQuery object contains an array of matching elements, which are basically native DOM objects like HTMLDivElement that always refer to the same object, so you should check those for equality using the array index as Darin suggested.

$('#a')[0] == $('#a')[0] // true

git show <commit-id>

Documentation for git show

It uses indentation

 def func():
     funcbody
     if cond: 
         ifbody
     outofif

 outof_func 

You can't assign a List<Number> to a reference of type List<Integer> because List<Number> allows types of numbers other than Integer. If you were allowed to do that, the following would be allowed:

List<Number> numbers = new ArrayList<Number>();
numbers.add(1.1); // add a double
List<Integer> ints = numbers;
Integer fail = ints.get(0); // ClassCastException!

The type List<Integer> is making a guarantee that anything it contains will be an Integer. That's why you're allowed to get an Integer out of it without casting. As you can see, if the compiler allowed a List of another type such as Number to be assigned to a List<Integer> that guarantee would be broken.

Assigning a List<Integer> to a reference of a type such as List<?> or List<? extends Number> is legal because the ? means "some unknown subtype of the given type" (where the type is Object in the case of just ? and Number in the case of ? extends Number).

Since ? indicates that you do not know what specific type of object the List will accept, it isn't legal to add anything but null to it. You are, however, allowed to retrieve any object from it, which is the purpose of using a ? extends X bounded wildcard type. Note that the opposite is true for a ? super X bounded wildcard type... a List<? super Integer> is "a list of some unknown type that is at least a supertype of Integer". While you don't know exactly what type of List it is (could be List<Integer>, List<Number>, List<Object>) you do know for sure that whatever it is, an Integer can be added to it.

Finally, new ArrayList<?>() isn't legal because when you're creating an instance of a paramterized class like ArrayList, you have to give a specific type parameter. You could really use whatever in your example (Object, Foo, it doesn't matter) since you'll never be able to add anything but null to it since you're assigning it directly to an ArrayList<?> reference.

aspose pdf works pretty well. then again, you have to pay for it

Look here: http://en.cppreference.com/w/cpp/algorithm/sort.

It says:

template< class RandomIt, class Compare >
void sort( RandomIt first, RandomIt last, Compare comp );

• comp - comparison function which returns ?true if the first argument is less than the second. The signature of the comparison function should be equivalent to the following: bool cmp(const Type1 &a, const Type2 &b);

Also, here's an example of how you can use std::sort using a custom C++14 polymorphic lambda:

std::sort(std::begin(container), std::end(container),
          [] (const auto& lhs, const auto& rhs) {
    return lhs.first < rhs.first;
});

closures are beautiful! they solve a lot of problems that come with anonymous functions, and make really elegant code possible (at least as long as we talk about php).

javascript programmers use closures all the time, sometimes even without knowing it, because bound variables aren't explicitly defined - that's what "use" is for in php.

there are better real-world examples than the above one. lets say you have to sort an multidimensional array by a sub-value, but the key changes.

<?php
    function generateComparisonFunctionForKey($key) {
        return function ($left, $right) use ($key) {
            if ($left[$key] == $right[$key])
                return 0;
            else
                return ($left[$key] < $right[$key]) ? -1 : 1;
        };
    }

    $myArray = array(
        array('name' => 'Alex', 'age' => 70),
        array('name' => 'Enrico', 'age' => 25)
    );

    $sortByName = generateComparisonFunctionForKey('name');
    $sortByAge  = generateComparisonFunctionForKey('age');

    usort($myArray, $sortByName);

    usort($myArray, $sortByAge);
?>

warning: untested code (i don't have php5.3 installed atm), but it should look like something like that.

there's one downside: a lot of php developers may be a bit helpless if you confront them with closures.

to understand the nice-ty of closures more, i'll give you another example - this time in javascript. one of the problems is the scoping and the browser inherent asynchronity. especially, if it comes to window.setTimeout(); (or -interval). so, you pass a function to setTimeout, but you can't really give any parameters, because providing parameters executes the code!

function getFunctionTextInASecond(value) {
    return function () {
        document.getElementsByName('body')[0].innerHTML = value; // "value" is the bound variable!
    }
}

var textToDisplay = prompt('text to show in a second', 'foo bar');

// this returns a function that sets the bodys innerHTML to the prompted value
var myFunction = getFunctionTextInASecond(textToDisplay);

window.setTimeout(myFunction, 1000);

myFunction returns a function with a kind-of predefined parameter!

to be honest, i like php a lot more since 5.3 and anonymous functions/closures. namespaces may be more important, but they're a lot less sexy.

I would strongly suspect this is not possible, because it would be an incredible security problem if it were. For example, I could make a page which looked like a bank login page, and make the URL in the address bar look just like the real bank!

Perhaps if you explain why you want to do this, folks might be able to suggest alternative approaches...

[Edit in 2011: Since I wrote this answer in 2008, more info has come to light regarding an HTML5 technique that allows the URL to be modified as long as it is from the same origin]

Okay, this version works with two new Map objects and two iterations and sorts on values. Hope, the performs well although the map entries must be looped twice:

public static void main(String[] args) {
    Map<String, String> unsorted = new HashMap<String, String>();
    unsorted.put("Cde", "Cde_Value");
    unsorted.put("Abc", "Abc_Value");
    unsorted.put("Bcd", "Bcd_Value");

    Comparator<String> comparer = new Comparator<String>() {
        @Override
        public int compare(String o1, String o2) {
            return o1.compareTo(o2);
        }};

    System.out.println(sortByValue(unsorted, comparer));

}

public static <K, V> Map<K,V> sortByValue(Map<K, V> in, Comparator<? super V> compare) {
    Map<V, K> swapped = new TreeMap<V, K>(compare);
    for(Entry<K,V> entry: in.entrySet()) {
        if (entry.getValue() != null) {
            swapped.put(entry.getValue(), entry.getKey());
        }
    }
    LinkedHashMap<K, V> result = new LinkedHashMap<K, V>();
    for(Entry<V,K> entry: swapped.entrySet()) {
        if (entry.getValue() != null) {
            result.put(entry.getValue(), entry.getKey());
        }
    }
    return result;
}

The solution uses a TreeMap with a Comparator and sorts out all null keys and values. First, the ordering functionality from the TreeMap is used to sort upon the values, next the sorted Map is used to create a result as a LinkedHashMap that retains has the same order of values.

Greetz, GHad

One that I rarely find in most Vim tutorials, but it's INCREDIBLY useful (at least to me), is the

g; and g,

to move (forward, backward) through the changelist.

Let me show how I use it. Sometimes I need to copy and paste a piece of code or string, say a hex color code in a CSS file, so I search, jump (not caring where the match is), copy it and then jump back (g;) to where I was editing the code to finally paste it. No need to create marks. Simpler.

Just my 2cents.

Use a lambda to connect the template to your main code

return render_template("clever_template", clever_function=lambda x: clever_function x)

Then you can seamlessly call the function in the template

{{clever_function(value)}}

This commonly happened use case for any developer.

It is better to have it as function in your local system. (So better to keep this script in one of the shell profile like ksh/zsh or bash profile based on the user preference)

function killport {
   kill -9 `lsof -i tcp:"$1" | grep LISTEN | awk '{print $2}'`
}

Usage:

killport port_number

Example:

killport 8080

Based on an earlier reply by @dmckee

make | tee makelog.txt

This gives you real-time scrolling output while compiling, and simultaneously write to the makelog.txt file.

In bash version 4 associative arrays were introduced.

declare -A arr

arr["key1"]=val1

arr+=( ["key2"]=val2 ["key3"]=val3 )

The arr array now contains the three key value pairs. Bash is fairly limited what you can do with them though, no sorting or popping etc.

for key in ${!arr[@]}; do
    echo ${key} ${arr[${key}]}
done

Will loop over all key values and echo them out.

Note: Bash 4 does not come with Mac OS X because of its GPLv3 license; you have to download and install it. For more on that see here

It's better to use script module for that:
http://docs.ansible.com/script_module.html

grant CREATE SESSION

Ref.. http://ss64.com/ora/grant.html

HTH,

Kent

You can use

    nditer

Here I calculated no. of positive and negative coefficients in a logistic regression:

b=sentiment_model.coef_
pos_coef=0
neg_coef=0
for i in np.nditer(b):
    if i>0:
    pos_coef=pos_coef+1
    else:
    neg_coef=neg_coef+1
print("no. of positive coefficients is : {}".format(pos_coef))
print("no. of negative coefficients is : {}".format(neg_coef))

Output:

no. of positive coefficients is : 85035
no. of negative coefficients is : 36199

It looks like the class.phpmailer.php file is corrupt. I would download the latest version and try again.

I've always used phpMailer's SMTP feature:

$mail->IsSMTP();
$mail->Host = "localhost";

And if you need debug info:

$mail->SMTPDebug  = 2; // enables SMTP debug information (for testing)
                       // 1 = errors and messages
                       // 2 = messages only

If you are trying to convert all string to lowercase in the list, You can use pandas :

import pandas as pd

data = ['Study', 'Insights']

pd_d = list(pd.Series(data).str.lower())

output:

['study', 'insights']

I've done it this way in the past, JsFiddle:

CSS:

.radio-option {
    cursor: pointer;
    height: 23px;
    width: 23px;
    background: url(../images/checkbox2.png) no-repeat 0px 0px;
}

.radio-option.click {
    background: url(../images/checkbox1.png) no-repeat 0px 0px;
}

HTML:

<li><div class="radio-option"></div></li>
<li><div class="radio-option"></div></li>
<li><div class="radio-option"></div></li>
<li><div class="radio-option"></div></li>
<li><div class="radio-option"></div></li>

jQuery:

<script>
    $(document).ready(function() {
        $('.radio-option').click(function () {
            $(this).not(this).removeClass('click');
            $(this).toggleClass("click");
        });
    });
</script>

You're nearly there, just take out the EXECUTE:

DECLARE
  procId NUMBER;

BEGIN
  PKG1.INIT(1143824, 0, procId);
  DBMS_OUTPUT.PUT_LINE(procId);
END;

I know this is an old post but maybe someone down the line can use this.

// use document.form["form-name"] to reference the form
const ccForm = document.forms["ccform"];

// bind the onsubmit property to a function to do some logic
ccForm.onsubmit = function(e) {

  // access the desired input through the var we setup
  let ccSelection = ccForm.ccselect.value;
  console.log(ccSelection);

  e.preventDefault();
}

<form name="ccform">
  <select name="ccselect">
    <option value="card1">Card 1</option>
    <option value="card2">Card 2</option>
    <option value="card3">Card 3</option>
  </select>
  <button type="submit">Enter</button>
</form>

If you use a "text variable" tk.StringVar(), you can just set() that.

No need to use the Entry delete and insert. Moreover, those functions don't work when the Entry is disabled or readonly! The text variable method, however, does work under those conditions as well.

import Tkinter as tk

...

entryText = tk.StringVar()
entry = tk.Entry( master, textvariable=entryText )
entryText.set( "Hello World" )

Add an = at the beginning. That makes it a function rather than an entry.

The most secure way

if(preg_replace('/^(\-){0,1}[0-9]+(\.[0-9]+){0,1}/', '', $value) == ""){
  //if all made of numbers "-" or ".", then yes is number;
}

Not at the SQL level and that's a pity There is one in PLSQL though

Sort Mixed Array (alphabets and numbers)

function naturalCompare(a, b) {_x000D_
   var ax = [], bx = [];_x000D_
_x000D_
   a.replace(/(\d+)|(\D+)/g, function (_, $1, $2) { ax.push([$1 || Infinity, $2 || ""]) });_x000D_
   b.replace(/(\d+)|(\D+)/g, function (_, $1, $2) { bx.push([$1 || Infinity, $2 || ""]) });_x000D_
_x000D_
   while (ax.length && bx.length) {_x000D_
     var an = ax.shift();_x000D_
     var bn = bx.shift();_x000D_
     var nn = (an[0] - bn[0]) || an[1].localeCompare(bn[1]);_x000D_
     if (nn) return nn;_x000D_
   }_x000D_
_x000D_
   return ax.length - bx.length;_x000D_
}_x000D_
_x000D_
let builds = [ _x000D_
    { id: 1, name: 'Build 91'}, _x000D_
    { id: 2, name: 'Build 32' }, _x000D_
    { id: 3, name: 'Build 13' }, _x000D_
    { id: 4, name: 'Build 24' },_x000D_
    { id: 5, name: 'Build 5' },_x000D_
    { id: 6, name: 'Build 56' }_x000D_
]_x000D_
_x000D_
let sortedBuilds = builds.sort((n1, n2) => {_x000D_
  return naturalCompare(n1.name, n2.name)_x000D_
})_x000D_
_x000D_
console.log('Sorted by name property')_x000D_
console.log(sortedBuilds)

There is also this neat little extension method:

static class ExtensionMethods
{
    public static Color ToColor(this uint argb)
    {
        return Color.FromArgb((byte)((argb & -16777216)>> 0x18),      
                              (byte)((argb & 0xff0000)>> 0x10),   
                              (byte)((argb & 0xff00) >> 8),
                              (byte)(argb & 0xff));
    }
}

In use:

Color color = 0xFFDFD991.ToColor();

Try this..

1. Navigate to the problem's parent directory cd YOURPATH/usr/local/mysql
2. rm -rf *.local.err (deletes file)
3. touch YOURUSERNAME.local.pid (generates new *.local.pid file the error thrown was complaining about)
4. cd back into your project and restart mysql using mysql.server start

edit: I just saw you meant in c#. Here is a better way with unmanaged code:

ManagementClass oMClass = new ManagementClass ("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection colMObj = oMCLass.GetInstances();
foreach(ManagementObject objMO in colMObj)
    Console.WriteLine(objMO["MacAddress"].ToString());

Usually you have a remote URL, something like this,

git remote -v

origin    https://gitlab.com/username/Repo.git (fetch)
origin    https://gitlab.com/username/Repo.git (push)

If you want to skip username and password while using git push, try this:

 git remote set-url origin https://username:[email protected]/username/Repo.git

I've just added the same URL (with user details including password) to origin.

NOTE: It doesn't work if username is an email Id.

git remote -v

origin    https://username:[email protected]/username/Repo.git (fetch)
origin    https://username:[email protected]/username/Repo.git (push)

@Radoslaw Roszkowiak's answer is almost right except that relativeTo: this.route is required as below:

constructor(
  private router: Router,
  private route: ActivatedRoute,
) {}

changeQuery() {
  this.router.navigate(['.'], { relativeTo: this.route, queryParams: { ... }});
}

With the latest iteration of netcoreapp 3.1 out, you can do this pretty simply without any third-party dependencies.

I created a gist for this, but you can use this class to read a JSON file and return dynamic properties.

using System.Text.Json;
using System.IO;

class ConfigurationLoader
{

    private dynamic configJsonData;
    public ConfigurationLoader Load(string configFilePath = "appsettings.json")
    {
        var appSettings = File.ReadAllText(configFilePath);
        this.configJsonData = JsonSerializer.Deserialize(appSettings, typeof(object));
        return this;
    }

    public dynamic GetProperty(string key)
    {
        var properties = key.Split(".");
        dynamic property = this.configJsonData;
        foreach (var prop in properties)
        {
            property = property.GetProperty(prop);
        }

        return property;
    }
}

I specifically made this so I could use an appconfig.json in my dotnet console application. I just put this in my Program.Main function:

var config = new ConfigurationLoader();
config.Load();
Console.WriteLine(config.GetProperty("Environment.Name"));

And this will return a dynamic object for the property. (A JsonElement if it's not a primitive). My appsettings.json file looks like this:

{
  "Environment": {
    "Token": "abc-123",
    "Name": "Production"
  }
}

Some time this error in Joomla appear because some thing incorrect with SESSION or coockie. That may because incorrect HTTPd server setting or because some before CURL or Server http requests

so PHP code like:

  curl_setopt($ch, CURLOPT_URL, $url_page);
  curl_setopt($ch, CURLOPT_HEADER, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
  curl_setopt($ch, CURLOPT_TIMEOUT, 30); 
  curl_setopt($ch, CURLOPT_COOKIESESSION, TRUE);
  curl_setopt($ch, CURLOPT_REFERER, $url_page);
  curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
  curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__) . "./cookie.txt");
  curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__) . "./cookie.txt");
  curl_setopt($ch, CURLOPT_COOKIE, session_name() . '=' . session_id());

  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
  if( $sc != "" ) curl_setopt($ch, CURLOPT_COOKIE, $sc);

will need replace to PHP code

  curl_setopt($ch, CURLOPT_URL, $url_page);
  curl_setopt($ch, CURLOPT_HEADER, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
  curl_setopt($ch, CURLOPT_TIMEOUT, 30); 
//curl_setopt($ch, CURLOPT_COOKIESESSION, TRUE);
  curl_setopt($ch, CURLOPT_REFERER, $url_page);
  curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
//curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__) . "./cookie.txt");
//curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__) . "./cookie.txt");
//curl_setopt($ch, CURLOPT_COOKIE, session_name() . '=' . session_id());

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false); // !!!!!!!!!!!!!
  //if( $sc != "" ) curl_setopt($ch, CURLOPT_COOKIE, $sc);

May be some body reply how this options connected with "Curl error: Operation timed out after .."

A colleague suggested an approach that I find preferable to the chosen solution here. First, in CSS, add this rule:

body.waiting * {
    cursor: progress;
}

Then, to turn on the progress cursor, say:

$('body').addClass('waiting');

and to turn off the progress cursor, say:

$('body').removeClass('waiting');

The advantage of this approach is that when you turn off the progress cursor, whatever other cursors may have been defined in your CSS will be restored. If the CSS rule is not powerful enough in precedence to overrule other CSS rules, you can add an id to the body and to the rule, or use !important.

If you've got V3, you can take advantage of auto-enumeration, the -Raw switch in Get-Content, and some of the new line contiunation syntax to simply it to this, using the string .replace() method instead of the -replace operator:

(Get-ChildItem "[FILEPATH]" -recurse).FullName |
  Foreach-Object {
   (Get-Content $_ -Raw).
     Replace('abt7d9epp4','w2svuzf54f').
     Replace('AccountName=adtestnego','AccountName=zadtestnego').
     Replace('AccountKey=eKkij32jGEIYIEqAR5RjkKgf4OTiMO6SAyF68HsR/Zd/KXoKvSdjlUiiWyVV2+OUFOrVsd7jrzhldJPmfBBpQA==','AccountKey=DdOegAhDmLdsou6Ms6nPtP37bdw6EcXucuT47lf9kfClA6PjGTe3CfN+WVBJNWzqcQpWtZf10tgFhKrnN48lXA==') |
   Set-Content $_
  }

Using the .replace() method uses literal strings for the replaced text argument (not regex), so you don't need to worry about escaping regex metacharacters in the text-to-replace argument.

This isn't a 'good' answer, but I thought this was nifty (it doesn't handle nested dicts in current form). Simply wrap your dict in a function:

def make_funcdict(d=None, **kwargs)
    def funcdict(d=None, **kwargs):
        if d is not None:
            funcdict.__dict__.update(d)
        funcdict.__dict__.update(kwargs)
        return funcdict.__dict__
    funcdict(d, **kwargs)
    return funcdict

Now you have slightly different syntax. To acces the dict items as attributes do f.key. To access the dict items (and other dict methods) in the usual manner do f()['key'] and we can conveniently update the dict by calling f with keyword arguments and/or a dictionary

Example

d = {'name':'Henry', 'age':31}
d = make_funcdict(d)
>>> for key in d():
...     print key
... 
age
name
>>> print d.name
... Henry
>>> print d.age
... 31
>>> d({'Height':'5-11'}, Job='Carpenter')
... {'age': 31, 'name': 'Henry', 'Job': 'Carpenter', 'Height': '5-11'}

And there it is. I'll be happy if anyone suggests benefits and drawbacks of this method.

This worked for me, I added images.sort() to keep the sequence order:

import cv2
import numpy as np
import os

image_folder = 'data-set-race-01'
video_file = 'race-01.mp4'
image_size = (160, 120)
fps = 24

images = [img for img in os.listdir(image_folder) if img.endswith(".jpg")]
images.sort()

out = cv2.VideoWriter(video_file, cv2.VideoWriter_fourcc(*'MP4V'), fps, image_size)

img_array = []
for filename in images:
    img = cv2.imread(os.path.join(image_folder, filename))
    img_array.append(img)
    out.write(img)

out.release()

You can declare the variable final, or make it an instance (or global) variable. If you declare it final, you won't be able to change it later.

Any variable defined in a method and accessed by an anonymous inner class must be final. Otherwise, you could use that variable in the inner class, unaware that if the variable changes in the inner class, and then it is used later in the enclosing scope, the changes made in the inner class did not persist in the enclosing scope. Basically, what happens in the inner class stays in the inner class.

I wrote a more in-depth explanation here. It also explains why instance and global variables do not need to be declared final.

This is what I used on MAC.

Use your preferred compiler.

Compile with gcc.

gcc -lstdc++ filename.cpp -o outputName

Or Compile with clang.

clang++ filename.cpp -o outputName

After done compiling. You can run it with.

./outputFile

Use outline:none to anchor tag class

MyClass is a class not a namespace. So this code is wrong:

using MyClass //THIS CODE IS NOT CORRECT

You should check the namespace of the MyClass (e.g: MyNamespace). Then call it in a proper way:

MyNamespace.MyClass myClass =new MyNamespace.MyClass();

You are using the correct API, but is the "marker" variable visible to the entire script. I don't see this marker variable declared globally.

1. The point of using CDN is that it is faster, first of all, because it is a distributed network, but secondly, because the static files are being cached by the browsers and chances are high that, for example, the CDN's jquery library that your site uses had already been downloaded by the user's browser, and therefore the file had been cached, and therefore no unnecessary download is taking place. That being said, it is still a good idea to provide a fallback.

   Now, the point of bootstrap's npm package

   is that it provides bootstrap's javascript file as a module. As has been mentioned above, this makes it possible to require it using browserify, which is the most likely use case and, as I understand it, the main reason for bootstrap being published on npm.

2. How to use it

   Imagine the following project structure:

   project
   |-- node_modules
   |-- public
   |   |-- css
   |   |-- img
   |   |-- js
   |   |-- index.html
   |-- package.json
   
   

In your index.html you can reference both css and js files like this:

<link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css">
<script src="../node_modules/bootstrap/dist/js/bootstrap.min.js"></script>

Which is the simplest way, and correct for the .css files. But it is much better to include the bootstrap.js file like this somewhere in your public/js/*.js files:

var bootstrap = require('bootstrap');

And you include this code only in those javascript files where you actually need bootstrap.js. Browserify takes care of including this file for you.

Now, the drawback is that you now have your front-end files as node_modules dependencies, and the node_modules folder is usually not checked in with git. I think this is the most controversial part, with many opinions and solutions.

UPDATE March 2017

Almost two years have passed since I wrote this answer and an update is in place.

Now the generally accepted way is to use a bundler like webpack (or another bundler of choice) to bundle all your assets in a build step.

Firstly, it allows you to use commonjs syntax just like browserify, so to include bootstrap js code in your project you do the same:

const bootstrap = require('bootstrap');

As for the css files, webpack has so called "loaders". They allow you write this in your js code:

require('bootstrap/dist/css/bootstrap.css');

and the css files will be "magically" included in your build. They will be dynamically added as <style /> tags when your app runs, but you can configure webpack to export them as a separate css file. You can read more about that in webpack's documentation.

In conclusion.

1. You should "bundle" your app code with a bundler
2. You shouldn't commit neither node_modules nor the dynamically built files to git. You can add a build script to npm which should be used to deploy files on server. Anyway, this can be done in different ways depending on your preferred build process.

You are looking for --build-arg and the ARG instruction. These are new as of Docker 1.9. Check out https://docs.docker.com/engine/reference/builder/#arg. This will allow you to add ARG arg to the Dockerfile and then build with docker build --build-arg arg=2.3 ..

This:

{
    'http://example.org/about': {
        'http://purl.org/dc/terms/title': [
            {'type': 'literal', 'value': "Anna's Homepage"}
        ]
     }
}

is not JSON.
This:

{
     "http://example.org/about": {
         "http://purl.org/dc/terms/title": [
             {"type": "literal", "value": "Anna's Homepage"}
          ]
      }
}

is JSON.

EDIT:
Some commenters suggested that the above is not enough.
JSON specification - RFC7159 states that a string begins and ends with quotation mark. That is ".
Single quoute ' has no semantic meaning in JSON and is allowed only inside a string.

I had this issue when inserting date data into a database, you can simply use the struct members separately: In my case it's useful since the sql sentence needs to have the right values and you just need to add the slash or dash to complete the format, no conversions needed.

DateTimePicker dtp = new DateTimePicker();
String sql = "insert into table values(" + dtp.Value.Date.Year + "/" + 
dtp.Value.Date.Month + "/" + dtp.Value.Date.Day + ");";

That way you get just the date members without time...

Just use the following method, pass it lat and long and get distance in meter:

private static double distance_in_meter(final double lat1, final double lon1, final double lat2, final double lon2) {
    double R = 6371000f; // Radius of the earth in m
    double dLat = (lat1 - lat2) * Math.PI / 180f;
    double dLon = (lon1 - lon2) * Math.PI / 180f;
    double a = Math.sin(dLat/2) * Math.sin(dLat/2) +
            Math.cos(latlong1.latitude * Math.PI / 180f) * Math.cos(latlong2.latitude * Math.PI / 180f) *
                    Math.sin(dLon/2) * Math.sin(dLon/2);
    double c = 2f * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
    double d = R * c;
    return d;
}

You need to create a copy of the list before you modify its contents. A quick shortcut to duplicate a list is this:

mylist[:]

Example:

>>> first = [1,2,3]
>>> second = first[:]
>>> second.append(4)
>>> first
[1, 2, 3]
>>> second
[1, 2, 3, 4]

And to show the default behavior that would modify the orignal list (since a name in Python is just a reference to the underlying object):

>>> first = [1,2,3]
>>> second = first
>>> second.append(4)
>>> first
[1, 2, 3, 4]
>>> second
[1, 2, 3, 4]

Note that this only works for lists. If you need to duplicate the contents of a dictionary, you must use copy.deepcopy() as suggested by others.

Add this CSS reset to your CSS code: (From here)

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

It'll reset the CSS effectively, getting rid of the padding and margins.

just do it like this

x=zeros(100,200);
for i=1:100
  for j=1:200
    x(i,j)=input('enter the number');
  end
end

Same thing happens to me from time to time when using Eclipse WDT. Its specialy frustrating when this happens to a unmodified and previously working project. This is what I do to fix it in this last scenario:

1. Stop Tomcat (if it's running)
2. Open the "Servers" view: Window > Show view > Other > Server > Servers
3. Right Click on Tomcat Server > Clean Tomcat Work Directory.
4. Right Click on Tomcat Server > Clean
5. Restart the server

This usually fixes the issue you mention.

There is a library for this BarCode PHP. You just need to include a few files:

require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');

You can generate many types of barcodes, namely 1D or 2D. Add the required library:

require_once('class/BCGcode39.barcode.php');

Generate the colours:

// The arguments are R, G, and B for color.
$colorFront = new BCGColor(0, 0, 0);
$colorBack = new BCGColor(255, 255, 255);

After you have added all the codes, you will get this way:

Example

Since several have asked for an example here is what I was able to do to get it done

require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');

require_once('class/BCGcode128.barcode.php');

header('Content-Type: image/png');

$color_white = new BCGColor(255, 255, 255);

$code = new BCGcode128();
$code->parse('HELLO');

$drawing = new BCGDrawing('', $color_white);
$drawing->setBarcode($code);

$drawing->draw();
$drawing->finish(BCGDrawing::IMG_FORMAT_PNG);

If you want to actually create the image file so you can save it then change

$drawing = new BCGDrawing('', $color_white);

to

$drawing = new BCGDrawing('image.png', $color_white);

Just in addition to the above answers, for the question where and when you should call getLocationOnScreen?

For any information that is related to the view, will be available only after the view has been laid out(created) on the screen. So to get the location put your code inside view.post(Runnable) which is called after view has been laid out, like this:

view.post(new Runnable() {
            @Override
            public void run() {

               // This code will run when view created and rendered on screen

               // So as the answer to this question, you can put the code here
               int[] location = new int[2];
               myView.getLocationOnScreen(location);
               int x = location[0];
               int y = location[1];
            }
        });  

I had this issue when I didn't have a gitignore file with my iOS project

I think maybe it was trying to push a humungous file to github and github was probably rejecting that giant file or (files)

To get a type that implements io.Reader from a []byte slice, you can use bytes.NewReader in the bytes package:

r := bytes.NewReader(byteData)

This will return a value of type bytes.Reader which implements the io.Reader (and io.ReadSeeker) interface.

Don't worry about them not being the same "type". io.Reader is an interface and can be implemented by many different types. To learn a little bit more about interfaces in Go, read Effective Go: Interfaces and Types.

-while(int i=0; i < data.length; i++) 
+for(int i=0; i < data.length; i++) 

yourView.setLayoutParams(new LinearLayout.LayoutParams(width, height));

If you want to change only the Back Arrow BUT on the entire app, do this:

[[NSClassFromString(@"_UINavigationBarBackIndicatorView") appearance] 
  setTintColor:[UIColor colorWithHexString: @"#f00000"]];

XCODE 10.1

1. Goto Xcode -> Preferences (Shortcut CMD,)

2. Select Components

3. Download Simulator version

4. XCode -> Open Developer Tool -> Simulator This will launch Simulator as stand alone application

5 Hardware -> Device -> Manage Devices...

6. Click on + iCon to create new simulator version.

7. Specify Simulator Name, Device Type and Choose OS version from drop down.

8. Click Create.

9. Hardware -> Device -> iOS 11.0 -> iPhone 6

Thats it run enjoy coding!

Thanks. I use the API Level 2 (Android 1.1) and instead of BUTTON_POSITIVE and BUTTON_NEGATIVE i have to use BUTTON1 and BUTTON2.

I find it much easier to "extend" via assigning in a bigger matrix. E.g.

import numpy as np
p = np.array([[1,2], [3,4]])
g = np.array(range(20))
g.shape = (4,5)
g[0:2, 0:2] = p

Here are the arrays:

p

   array([[1, 2],
       [3, 4]])

g:

array([[ 0,  1,  2,  3,  4],
       [ 5,  6,  7,  8,  9],
       [10, 11, 12, 13, 14],
       [15, 16, 17, 18, 19]])

and the resulting g after assignment:

   array([[ 1,  2,  2,  3,  4],
       [ 3,  4,  7,  8,  9],
       [10, 11, 12, 13, 14],
       [15, 16, 17, 18, 19]])

Below command helps to search for any files

1) Irrespective of case
2) Result Excluding folders without permission
3) Searching from the root or from the path you like. Change / with the path you prefer.

Syntax :
find -iname '' 2>&1 | grep -v "Permission denied"

Example

find / -iname 'C*.xml' 2>&1 | grep -v "Permission denied"

find / -iname '*C*.xml'   2>&1 | grep -v "Permission denied"

// a wrapper closure around executing a string                                  
// can take either a string or a list of strings (for arguments with spaces)    
// prints all output, complains and halts on error                              
def runCommand = { strList ->
  assert ( strList instanceof String ||
           ( strList instanceof List && strList.each{ it instanceof String } ) \
)
  def proc = strList.execute()
  proc.in.eachLine { line -> println line }
  proc.out.close()
  proc.waitFor()

  print "[INFO] ( "
  if(strList instanceof List) {
    strList.each { print "${it} " }
  } else {
    print strList
  }
  println " )"

  if (proc.exitValue()) {
    println "gave the following error: "
    println "[ERROR] ${proc.getErrorStream()}"
  }
  assert !proc.exitValue()
}

The condition below:

//Element[@attribute1="abc" and @attribute2="xyz" and Data]

checks for the existence of the element Data within Element and not for element value Data.

Instead you can use

//Element[@attribute1="abc" and @attribute2="xyz" and text()="Data"]

There is nice feature which shows quick documentation when your mouse is over element.

IntelliJ 14

Editor / General -> Show quick documentation on mouse move

Older versions

Add the following line to idea.properties file:

auto.show.quick.doc=true

For refresh leaflet map you can use this code:

this.map.fitBounds(this.map.getBounds());

The tabularx package gives you

1. the total width as a first parameter, and
2. a new column type X, all X columns will grow to fill up the total width.

For your example:

\usepackage{tabularx}
% ...    
\begin{document}
% ...

\begin{tabularx}{\textwidth}{|X|X|X|}
\hline
Input & Output& Action return \\
\hline
\hline
DNF &  simulation & jsp\\
\hline
\end{tabularx}

If you are not wanting to use async you can add .Result to force the code to execute synchronously:

private string GetResponseString(string text)
{
    var httpClient = new HttpClient();

    var parameters = new Dictionary<string, string>();
    parameters["text"] = text;

    var response = httpClient.PostAsync(BaseUri, new FormUrlEncodedContent(parameters)).Result;
    var contents = response.Content.ReadAsStringAsync().Result;

    return contents;
 }  

I've seen this a couple times, and it is usually fixed by running a repair on .NET Framework (whichever version the application is trying to use).

I also faced this same issue while working in my development environment, the problem was that I left host: localhost commented out in the config/database.yml file.

So my application could not connect to the PostgreSQL database, simply uncommenting it solved the issue.

development:
  <<: *default
  database: database_name

  username: database_username 

  password: database_password

  host: localhost

That's all.

I hope this helps

When you want to create a new line or wrap in your TextArea you have to add \n (newline) after the text.

TextArea t = new TextArea();
t.setText("insert text when you want a new line add \nThen more text....);
setBounds();
setFont();
add(t);

This is the only way I was able to do it, maybe there is a simpler way but I havent discovered that yet.

Old question, but I see that this thread was fairly recently active, so I'll go ahead and throw in my two cents:

Pretty much exactly what Mitch said. Assuming proper indexing, you can just go ahead and use square bracket notation as if you were accessing an array. In addition to using the numeric index, though, if your members have specific names, you can often do kind of a simultaneous search/access by typing something like:

var temp = list1["DesiredMember"];

The more you know, right?

You can convert json Object into Array & String.

$data='{"resultList":[{"id":"1839","displayName":"Analytics","subLine":""},{"id":"1015","displayName":"Automation","subLine":""},{"id":"1084","displayName":"Aviation","subLine":""},{"id":"554","displayName":"Apparel","subLine":""},{"id":"875","displayName":"Aerospace","subLine":""},{"id":"1990","displayName":"Account Reconciliation","subLine":""},{"id":"3657","displayName":"Android","subLine":""},{"id":"1262","displayName":"Apache","subLine":""},{"id":"1440","displayName":"Acting","subLine":""},{"id":"710","displayName":"Aircraft","subLine":""},{"id":"12187","displayName":"AAC","subLine":""}, {"id":"20365","displayName":"AAT","subLine":""}, {"id":"7849","displayName":"AAP","subLine":""}, {"id":"20511","displayName":"AACR2","subLine":""}, {"id":"28585","displayName":"AASHTO","subLine":""}, {"id":"45191","displayName":"AAMS","subLine":""}]}';

$b=json_decode($data);

$i=0;
while($b->{'resultList'}[$i])
{
    print_r($b->{'resultList'}[$i]->{'displayName'});
    echo "<br />";
    $i++;
}

There is simpler approach to decode a ByteBuffer into a String without any problems, mentioned by Andy Thomas.

String s = StandardCharsets.UTF_8.decode(byteBuffer).toString();

Use myList.get(3) to get access to the current object and modify it, assuming instances of Customer have a way to be modified.

I know this question has several answers already, but I think there is a very subtle aspect that, although mentioned, hasn't been highlighted enough in the previous answers.

Before checking the Apache configuration or your files' permissions, let's do a simpler check to make sure that each of the directories composing the full path to the file you want to access (e.g. the index.php file in your document's root) is not only readable but also executable by the web server user.

For example, let's say the path to your documents root is "/var/www/html". You have to make sure that all of the "var", "www" and "html" directories are (readable and) executable by the web server user. In my case (Ubuntu 16.04) I had mistakenly removed the "x" flag to the "others" group from the "html" directory so the permissions looked like this:

drwxr-xr-- 15 root root 4096 Jun 11 16:40 html

As you can see the web server user (to whom the "others" permissions apply in this case) didn't have execute access to the "html" directory, and this was exactly the root of the problem. After issuing a:

chmod o+x html

command, the problem got fixed!

Before resolving this way I had literally tried every other suggestion in this thread, and since the suggestion was buried in a comment that I found almost by chance, I think it may be helpful to highlight and expand on it here.

This answer doesn't add any answers that aren't already discussed, but here are some speed results. I think this should resolve questions that came up in the comments. All of these look like they are O(n), based on these three values.

TL;DR: tuples = list(df.itertuples(index=False, name=None)) and tuples = list(zip(*[df[c].values.tolist() for c in df])) are tied for the fastest.

I did a quick speed test on results for three suggestions here:

1. The zip answer from @pirsquared: tuples = list(zip(*[df[c].values.tolist() for c in df]))
2. The accepted answer from @wes-mckinney: tuples = [tuple(x) for x in df.values]
3. The itertuples answer from @ksindi with the name=None suggestion from @Axel: tuples = list(df.itertuples(index=False, name=None))

from numpy import random
import pandas as pd


def create_random_df(n):
    return pd.DataFrame({"A": random.randint(n, size=n), "B": random.randint(n, size=n)})

Small size:

df = create_random_df(10000)
%timeit tuples = list(zip(*[df[c].values.tolist() for c in df]))
%timeit tuples = [tuple(x) for x in df.values]
%timeit tuples = list(df.itertuples(index=False, name=None))

Gives:

1.66 ms ± 200 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
15.5 ms ± 1.52 ms per loop (mean ± std. dev. of 7 runs, 100 loops each)
1.74 ms ± 75.4 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

Larger:

df = create_random_df(1000000)
%timeit tuples = list(zip(*[df[c].values.tolist() for c in df]))
%timeit tuples = [tuple(x) for x in df.values]
%timeit tuples = list(df.itertuples(index=False, name=None))

Gives:

202 ms ± 5.91 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)
1.52 s ± 98.1 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
209 ms ± 11.8 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)

As much patience as I have:

df = create_random_df(10000000)
%timeit tuples = list(zip(*[df[c].values.tolist() for c in df]))
%timeit tuples = [tuple(x) for x in df.values]
%timeit tuples = list(df.itertuples(index=False, name=None))

Gives:

1.78 s ± 118 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
15.4 s ± 222 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
1.68 s ± 96.3 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)

The zip version and the itertuples version are within the confidence intervals each other. I suspect that they are doing the same thing under the hood.

These speed tests are probably irrelevant though. Pushing the limits of my computer's memory doesn't take a huge amount of time, and you really shouldn't be doing this on a large data set. Working with those tuples after doing this will end up being really inefficient. It's unlikely to be a major bottleneck in your code, so just stick with the version you think is most readable.

For slow queries on version < 5.1, the following configuration worked for me:

log_slow_queries=/var/log/mysql/slow-query.log
long_query_time=20
log_queries_not_using_indexes=YES

Also note to place it under [mysqld] part of the config file and restart mysqld.

Below are two answers. First is a suggestion to use a more secure/flexible solution like ssh/scp/sftp. Second is an explanation of how to run ftp in batch mode.

A secure solution:

You really should use SSH/SCP/SFTP for this rather than FTP. SSH/SCP have the benefits of being more secure and working with public/private keys which allows it to run without a username or password.

You can send a single file:

scp <file to upload> <username>@<hostname>:<destination path>

Or a whole directory:

scp -r <directory to upload> <username>@<hostname>:<destination path>

For more details on setting up keys and moving files to the server with RSYNC, which is useful if you have a lot of files to move, or if you sometimes get just one new file among a set of random files, take a look at:

http://troy.jdmz.net/rsync/index.html

You can also execute a single command after sshing into a server:

From man ssh

ssh [...snipped...] hostname [command] If command is specified, it is executed on the remote host instead of a login shell.

So, an example command is:

ssh [email protected] bunzip file_just_sent.bz2

If you can use SFTP with keys to gain the benefit of a secured connection, there are two tricks I've used to execute commands.

First, you can pass commands using echo and pipe

echo "put files*.xml" | sftp -p -i ~/.ssh/key_name [email protected]

You can also use a batchfile with the -b parameter:

sftp -b batchfile.txt ~/.ssh/key_name [email protected]

An FTP solution, if you really need it:

If you understand that FTP is insecure and more limited and you really really want to script it...

There's a great article on this at http://www.stratigery.com/scripting.ftp.html

#!/bin/sh
HOST='ftp.example.com'
USER='yourid'
PASSWD='yourpw'
FILE='file.txt'

ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
binary
put $FILE
quit
END_SCRIPT
exit 0

The -n to ftp ensures that the command won't try to get the password from the current terminal. The other fancy part is the use of a heredoc: the <<END_SCRIPT starts the heredoc and then that exact same END_SCRIPT on the beginning of the line by itself ends the heredoc. The binary command will set it to binary mode which helps if you are transferring something other than a text file.

set time limit in __construct method or you can set in your index controller also where you want to have large time limit.

public function __construct()
{
    set_time_limit(8000000);
}

Check that your singing identity IN YOUR TARGET properties is correct. This one over-rides what you have in your project properties.

Also: I dunno if this is true - but I wasn't getting emails detailing my binary rejections when I did the "ready for binary upload" from a PC - but I DID get an email when I did this on the MAC

Lookarounds are zero width assertions. They check for a regex (towards right or left of the current position - based on ahead or behind), succeeds or fails when a match is found (based on if it is positive or negative) and discards the matched portion. They don't consume any character - the matching for regex following them (if any), will start at the same cursor position.

Read regular-expression.info for more details.

• Positive lookahead:

Syntax:

(?=REGEX_1)REGEX_2

Match only if REGEX_1 matches; after matching REGEX_1, the match is discarded and searching for REGEX_2 starts at the same position.

example:

(?=[a-z0-9]{4}$)[a-z]{1,2}[0-9]{2,3}

REGEX_1 is [a-z0-9]{4}$ which matches four alphanumeric chars followed by end of line.
REGEX_2 is [a-z]{1,2}[0-9]{2,3} which matches one or two letters followed by two or three digits.

REGEX_1 makes sure that the length of string is indeed 4, but doesn't consume any characters so that search for REGEX_2 starts at the same location. Now REGEX_2 makes sure that the string matches some other rules. Without look-ahead it would match strings of length three or five.

• Negative lookahead

Syntax:

(?!REGEX_1)REGEX_2

Match only if REGEX_1 does not match; after checking REGEX_1, the search for REGEX_2 starts at the same position.

example:

(?!.*\bFWORD\b)\w{10,30}$

The look-ahead part checks for the FWORD in the string and fails if it finds it. If it doesn't find FWORD, the look-ahead succeeds and the following part verifies that the string's length is between 10 and 30 and that it contains only word characters a-zA-Z0-9_

Look-behind is similar to look-ahead: it just looks behind the current cursor position. Some regex flavors like javascript doesn't support look-behind assertions. And most flavors that support it (PHP, Python etc) require that look-behind portion to have a fixed length.

• Atomic groups basically discards/forgets the subsequent tokens in the group once a token matches. Check this page for examples of atomic groups

For what it's worth I had this issue and had to go into cPanel where I saw the error message

"Attention! Please register your email IDs used in non-smtp mails through cpanel plugin. Unregistered email IDs will not be allowed in non-smtp emails sent through scripts. Go to Mail section and find "Registered Mail IDs" plugin in paper_lantern theme."

Registering the emails in cPanel (Register Mail IDs) and waiting 10 mins got mine to work.

Hope that helps someone.

I've found the liquibase.database.typeconversion.core.AbstractTypeConverter class. It lists all types that can be used:

protected DataType getDataType(String columnTypeString, Boolean autoIncrement, String dataTypeName, String precision, String additionalInformation) {
    // Translate type to database-specific type, if possible
    DataType returnTypeName = null;
    if (dataTypeName.equalsIgnoreCase("BIGINT")) {
        returnTypeName = getBigIntType();
    } else if (dataTypeName.equalsIgnoreCase("NUMBER") || dataTypeName.equalsIgnoreCase("NUMERIC")) {
        returnTypeName = getNumberType();
    } else if (dataTypeName.equalsIgnoreCase("BLOB")) {
        returnTypeName = getBlobType();
    } else if (dataTypeName.equalsIgnoreCase("BOOLEAN")) {
        returnTypeName = getBooleanType();
    } else if (dataTypeName.equalsIgnoreCase("CHAR")) {
        returnTypeName = getCharType();
    } else if (dataTypeName.equalsIgnoreCase("CLOB")) {
        returnTypeName = getClobType();
    } else if (dataTypeName.equalsIgnoreCase("CURRENCY")) {
        returnTypeName = getCurrencyType();
    } else if (dataTypeName.equalsIgnoreCase("DATE") || dataTypeName.equalsIgnoreCase(getDateType().getDataTypeName())) {
        returnTypeName = getDateType();
    } else if (dataTypeName.equalsIgnoreCase("DATETIME") || dataTypeName.equalsIgnoreCase(getDateTimeType().getDataTypeName())) {
        returnTypeName = getDateTimeType();
    } else if (dataTypeName.equalsIgnoreCase("DOUBLE")) {
        returnTypeName = getDoubleType();
    } else if (dataTypeName.equalsIgnoreCase("FLOAT")) {
        returnTypeName = getFloatType();
    } else if (dataTypeName.equalsIgnoreCase("INT")) {
        returnTypeName = getIntType();
    } else if (dataTypeName.equalsIgnoreCase("INTEGER")) {
        returnTypeName = getIntType();
    } else if (dataTypeName.equalsIgnoreCase("LONGBLOB")) {
        returnTypeName = getLongBlobType();
    } else if (dataTypeName.equalsIgnoreCase("LONGVARBINARY")) {
        returnTypeName = getBlobType();
    } else if (dataTypeName.equalsIgnoreCase("LONGVARCHAR")) {
        returnTypeName = getClobType();
    } else if (dataTypeName.equalsIgnoreCase("SMALLINT")) {
        returnTypeName = getSmallIntType();
    } else if (dataTypeName.equalsIgnoreCase("TEXT")) {
        returnTypeName = getClobType();
    } else if (dataTypeName.equalsIgnoreCase("TIME") || dataTypeName.equalsIgnoreCase(getTimeType().getDataTypeName())) {
        returnTypeName = getTimeType();
    } else if (dataTypeName.toUpperCase().contains("TIMESTAMP")) {
        returnTypeName = getDateTimeType();
    } else if (dataTypeName.equalsIgnoreCase("TINYINT")) {
        returnTypeName = getTinyIntType();
    } else if (dataTypeName.equalsIgnoreCase("UUID")) {
        returnTypeName = getUUIDType();
    } else if (dataTypeName.equalsIgnoreCase("VARCHAR")) {
        returnTypeName = getVarcharType();
    } else if (dataTypeName.equalsIgnoreCase("NVARCHAR")) {
        returnTypeName = getNVarcharType();
    } else {
        return new CustomType(columnTypeString,0,2);
    }

Using Now() is not a good idea. It only save the current time and date. It will not update the the current date and time, when you update your data. If you want to add the time once, The default value =Now() is best option. If you want to use timestamp. and want to update the this value, each time that row is updated. Then, trigger is best option to use.

1. http://www.mysqltutorial.org/sql-triggers.aspx
2. http://www.tutorialspoint.com/plsql/plsql_triggers.htm

These two toturial will help to implement the trigger.

Collections.addAll provides the shortest (one-line) receipt

Having

String[] array = {"foo", "bar", "baz"}; 
Set<String> set = new HashSet<>();

You can do as below

Collections.addAll(set, array); 

better use quoted `data` and `date`. AFAIR these may be reserved words my version is:

INSERT INTO `table` ( `data` , `date` ) VALUES('".$date."',NOW()+INTERVAL 1 DAY);

I realize this is an old question, and the OP is talking about using custom gx that aren't necessary 'checkbox'-looking, but there is a fantastic resource for generating custom colored assets here: http://kobroor.pl/

Just give it the relevant details and it spits out graphics, complete with xml resources, that you can just drop right in.

Unfortunately node does not support for each ... in, even though it is specified in JavaScript 1.6. Chrome uses the same JavaScript engine and is reported as having a similar shortcoming.

You'll have to settle for array.forEach(function(item) { /* etc etc */ }).

EDIT: From Google's official V8 website:

V8 implements ECMAScript as specified in ECMA-262.

On the same MDN website where it says that for each ...in is in JavaScript 1.6, it says that it is not in any ECMA version - hence, presumably, its absence from Node.

If you have an Order class, adding a property that references another class in your model, for instance Customer should be enough to let EF know there's a relationship in there:

public class Order
{
    public int ID { get; set; }

    // Some other properties

    // Foreign key to customer
    public virtual Customer Customer { get; set; }
}

You can always set the FK relation explicitly:

public class Order
{
    public int ID { get; set; }

    // Some other properties

    // Foreign key to customer
    [ForeignKey("Customer")]
    public string CustomerID { get; set; }
    public virtual Customer Customer { get; set; }
}

The ForeignKeyAttribute constructor takes a string as a parameter: if you place it on a foreign key property it represents the name of the associated navigation property. If you place it on the navigation property it represents the name of the associated foreign key.

What this means is, if you where to place the ForeignKeyAttribute on the Customer property, the attribute would take CustomerID in the constructor:

public string CustomerID { get; set; }
[ForeignKey("CustomerID")]
public virtual Customer Customer { get; set; }

EDIT based on Latest Code You get that error because of this line:

[ForeignKey("Parent")]
public Patient Patient { get; set; }

EF will look for a property called Parent to use it as the Foreign Key enforcer. You can do 2 things:

1) Remove the ForeignKeyAttribute and replace it with the RequiredAttribute to mark the relation as required:

[Required]
public virtual Patient Patient { get; set; }

Decorating a property with the RequiredAttribute also has a nice side effect: The relation in the database is created with ON DELETE CASCADE.

I would also recommend making the property virtual to enable Lazy Loading.

2) Create a property called Parent that will serve as a Foreign Key. In that case it probably makes more sense to call it for instance ParentID (you'll need to change the name in the ForeignKeyAttribute as well):

public int ParentID { get; set; }

In my experience in this case though it works better to have it the other way around:

[ForeignKey("Patient")]
public int ParentID { get; set; }

public virtual Patient Patient { get; set; }

Where does the variable results come from?

This block:

foreach (People p in ppl.results) {
    list.Add(results.name);
    list.Add(results.email);
    list2d.Add(list);
}

Should probably read more like:

foreach (People p in ppl.results) {
    var list = new List<string>();
    list.Add(p.name);
    list.Add(p.email);
    list2d.Add(list);
}

The easiest way is through css3 $("select option:selected") and then use the .text() or .html() function. depending on what you want to have.

myWebView.loadData(myHtmlString, "text/html; charset=UTF-8", null);

This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML.

Tested on 2.3 and 4.0.3.

In fact, I have no idea about what other values besides "base64" does the last parameter take. Some Google examples put null in there.

For me, it came down to the proxy_pass location setting. I needed to change over to using the HTTPS protocol, and have a valid SSL certificate set up on the node server side of things. That way when I introduce an external node server, I only have to change the IP and everything else remains the same config.

I hope this helps someone along the way... I was staring at the problem the whole time... sigh...

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}
upstream nodeserver {
        server 127.0.0.1:8080;
}
server {
        listen 443 default_server ssl http2;
        listen [::]:443 default_server ssl http2 ipv6only=on;
        server_name mysite.com;
        ssl_certificate ssl/site.crt;
        ssl_certificate_key ssl/site.key;
        location /websocket { #replace /websocket with the path required by your application
                proxy_pass https://nodeserver;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection $connection_upgrade;
                proxy_http_version 1.1;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $http_host;
                proxy_intercept_errors on;
                proxy_redirect off;
                proxy_cache_bypass $http_upgrade;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-NginX-Proxy true;
                proxy_ssl_session_reuse off;
            }
}

Here is the code and demo for Adding the marker, deleting any of the marker and also getting all the present/added markers :

Here is the entire JSFiddle code . Also here is the full page demo.

Adding the marker :

// Script for adding marker on map click
map.on('click', onMapClick);

function onMapClick(e) {

    var geojsonFeature = {

        "type": "Feature",
        "properties": {},
        "geometry": {
                "type": "Point",
                "coordinates": [e.latlng.lat, e.latlng.lng]
        }
    }

    var marker;

    L.geoJson(geojsonFeature, {

        pointToLayer: function(feature, latlng){

            marker = L.marker(e.latlng, {

                title: "Resource Location",
                alt: "Resource Location",
                riseOnHover: true,
                draggable: true,

            }).bindPopup("<input type='button' value='Delete this marker' class='marker-delete-button'/>");

            marker.on("popupopen", onPopupOpen);

            return marker;
        }
    }).addTo(map);
}

Deleting the Marker :

// Function to handle delete as well as other events on marker popup open

function onPopupOpen() {

    var tempMarker = this;

    // To remove marker on click of delete button in the popup of marker
    $(".marker-delete-button:visible").click(function () {
        map.removeLayer(tempMarker);
    });
}

Getting all the markers in the map :

// getting all the markers at once
function getAllMarkers() {

    var allMarkersObjArray = []; // for marker objects
    var allMarkersGeoJsonArray = []; // for readable geoJson markers

    $.each(map._layers, function (ml) {

        if (map._layers[ml].feature) {

            allMarkersObjArray.push(this)
            allMarkersGeoJsonArray.push(JSON.stringify(this.toGeoJSON()))
        }
    })

    console.log(allMarkersObjArray);
}

// any html element such as button, div to call the function()
$(".get-markers").on("click", getAllMarkers);

First of all it is not recommended to have php files with functions in design folder. You should create a new module or extend (copy from core to local a helper and add function onto that class) and do not change files from app/code/core.

To answer to your question you can use:

require(Mage::getBaseDir('design').'/frontend/default/mytheme/myfunc.php');

Best practice (as a start) will be to create in /app/code/local/Mage/Core/Helper/Extra.php a php file:

<?php
class Mage_Core_Helper_Extra extends Mage_Core_Helper_Abstract
{

    public function getSomething()
    {
        return 'Someting';
    }

}

And to use it in phtml files use:

$this->helper('core/extra')->getSomething();

Or in all the places:

Mage::helper('core/extra')->getSomething();

I've tried ControlBrushKey but it didn't work for unselected rows. The background for the unselected row was still white. But I've managed to find out that I have to override the rowstyle.

<DataGrid x:Name="pbSelectionDataGrid" Height="201" Margin="10,0"
          FontSize="20" SelectionMode="Single" FontWeight="Bold">
    <DataGrid.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#FFFDD47C"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="#FFA6E09C"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Red"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.ControlTextBrushKey}" Color="Violet"/>
    </DataGrid.Resources>
    <DataGrid.RowStyle>
        <Style TargetType="DataGridRow">
            <Setter Property="Background" Value="LightBlue" />
        </Style>
    </DataGrid.RowStyle>
</DataGrid>

You want a config.site file. Try:

$ mkdir -p ~/local/share
$ cat << EOF > ~/local/share/config.site
CPPFLAGS=-I$HOME/local/include
LDFLAGS=-L$HOME/local/lib
...
EOF

Whenever you invoke an autoconf generated configure script with --prefix=$HOME/local, the config.site will be read and all the assignments will be made for you. CPPFLAGS and LDFLAGS should be all you need, but you can make any other desired assignments as well (hence the ... in the sample above). Note that -I flags belong in CPPFLAGS and not in CFLAGS, as -I is intended for the pre-processor and not the compiler.

Java has a large number of built-in exceptions for different scenarios.

In this case, you should throw an IllegalArgumentException, since the problem is that the caller passed a bad parameter.

You need to select the entire column where you have the dates, so click the "text to columns" button, and select delimited > uncheck all the boxes and go until you click the button finish.

This will make the cell format and then the values will be readed as date.

Hope it will helped.

There is no way to explicitly specify the template arguments when calling a constructor template, so they have to be deduced through argument deduction. This is because if you say:

Foo<int> f = Foo<int>();

The <int> is the template argument list for the type Foo, not for its constructor. There's nowhere for the constructor template's argument list to go.

Even with your workaround you still have to pass an argument in order to call that constructor template. It's not at all clear what you are trying to achieve.

For circle, create a div element and then enter width = 2 times of the border radius = 2 times padding. Also line-height = 0 For example, with 50px as radii of the circle, the below code works well:

width: 100px;
padding: 50px 0;
border: solid;
line-height: 0px;
border-radius: 50px;

Add a "User-Agent" header to your request.

Some servers attempt to block spidering programs and scrapers from accessing their server because, in earlier days, requests did not send a user agent header.

You can either try to set a custom user agent value or use some value that identifies a Browser like "Mozilla/5.0 Firefox/26.0"

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();

headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
headers.setContentType(MediaType.APPLICATION_JSON);
headers.add("user-agent", "Mozilla/5.0 Firefox/26.0");
headers.set("user-key", "your-password-123"); // optional - in case you auth in headers
HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
ResponseEntity<Game[]> respEntity = restTemplate.exchange(url, HttpMethod.GET, entity, Game[].class);

logger.info(respEntity.toString());

You can add any paths you want to the hashtable of your bash:

hash -d <CustomName>=<RealPath>

Now you will be able to cd ~<CustomName>. To make it permanent add it to your bashrc script.

Notice that this hashtable is meant to provide a cache for bash not to need to search for content everytime a command is executed, therefore this table will be cleared on events that invalidate the cache, e.g. modifying $PATH.

You can add colors array in high chart graph for changing the color of graph. You can re-arrange these colors and you can also specify your own colors.

$('#container').highcharts({
colors: ['#2f7ed8','#910000','#8bbc21','#1aadce'],
chart: {
type: 'column'
},
title: {
text: 'Stacked column chart'
},

The other answers are just fine, but I wanted to point out one other peripheral thing: Arrays are ordered, whereas Hashes are not in 1.8. (In Ruby 1.9, Hashes are ordered by insertion order of keys.) So it wouldn't make sense prior to 1.9 to iterate over a Hash in the same way/sequence as Arrays, which have always had a definite ordering. I don't know what the default order is for PHP associative arrays (apparently my google fu isn't strong enough to figure that out, either), but I don't know how you can consider regular PHP arrays and PHP associative arrays to be "the same" in this context, since the order for associative arrays seems undefined.

As such, the Ruby way seems more clear and intuitive to me. :)

The logic is clear till finish printing out 13. Then the exception thrown in q() is caught by catch (Exception i) in main() and a new MyEx2() is ready to be thrown. However, before throwing the exception, the finally block have to be executed first. Then the output becomes 132 and finally asks to thrown another exception new MyEx1().

As a method cannot throw more than one Exception, it will always throw the latest Exception. In other words, if both catch and finally blocks try to throw Exception, then the Exception in catch is swallowed and only the exception in finally will be thrown.

Thus, in this program, Exception MyEx2 is swallowed and MyEx1 is thrown. This Exception is thrown out of main() and no longer caught, thus JVM stops and the final output is 132Exception in thread main MyExc1.

In essence, if you have a finally in a try/catch clause, a finally will be executed AFTER catching the exception, but BEFORE throwing any caught exception, and ONLY the lastest exception would be thrown in the end.

The only way to reliably detect if a socket is still connected is to periodically try to send data. Its usually more convenient to define an application level 'ping' packet that the clients ignore, but if the protocol is already specced out without such a capability you should be able to configure tcp sockets to do this by setting the SO_KEEPALIVE socket option. I've linked to the winsock documentation, but the same functionality should be available on all BSD-like socket stacks.

For Debian

add

non-free contrib

to deb and deb-src in /etc/apt/sources.list ie:

deb http://ftp.debian.org/debian/ squeeze main non-free contrib
deb-src http://ftp.debian.org/debian/ squeeze main non-free contrib

Then

apt-get update
apt-get install msttcorefonts

Of course you'll need to restart jasperserver. ie:

/opt/jasperreports-server-cp-4.5.0/ctlscript.sh restart

Change for your version / path.

Code project article here.

Commercial products:

1. SoftwareFX
2. Telerik

I'm sure there are others

Calling stopPropagation on the event prevents propagation: 

(event)="doSomething($event); $event.stopPropagation()"

For preventDefault just return false

(event)="doSomething($event); false"

Event binding allows to execute multiple statements and expressions to be executed sequentially (separated by ; like in *.ts files.
The result of last expression will cause preventDefault to be called if falsy. So be cautious what the expression returns (even when there is only one)

The easiest solution to this is to use rgba as the color: border-color: rgba(0,0,0,0); That is fully transparent border color.

public long millis() {
  return (long.MaxValue + DateTime.Now.ToBinary()) / 10000;
}

If you want microseconds, just change 10000 to 10, and if you want the 10th of micro, delete / 10000.

Sometimes I had the same issues when I forget to add Lombok annotation processor dependency to the maven configuration

Here is my take on s soosh's and 0xA3's answers. It can update the console with user messages while updating the spinner and has an elapsed time indicator aswell.

public class ConsoleSpiner : IDisposable
{
    private static readonly string INDICATOR = "/-\\|";
    private static readonly string MASK = "\r{0} {1:c} {2}";
    int counter;
    Timer timer;
    string message;

    public ConsoleSpiner() {
        counter = 0;
        timer = new Timer(200);
        timer.Elapsed += TimerTick;
    }

    public void Start() {
        timer.Start();
    }

    public void Stop() {
        timer.Stop();
        counter = 0;
    }

    public string Message {
        get { return message; }
        set { message = value; }
    }

    private void TimerTick(object sender, ElapsedEventArgs e) {
        Turn();
    }

    private void Turn() {
        counter++;
        var elapsed = TimeSpan.FromMilliseconds(counter * 200);
        Console.Write(MASK, INDICATOR[counter % 4], elapsed, this.Message);
    }

    public void Dispose() {
        Stop();
        timer.Elapsed -= TimerTick;
        this.timer.Dispose();
    }
}

usage is something like this:

class Program
{
    static void Main(string[] args)
    {
        using (var spinner = new ConsoleSpiner())
        {
            spinner.Start();
            spinner.Message = "About to do some heavy staff :-)"
            DoWork();
            spinner.Message = "Now processing other staff".
            OtherWork();
            spinner.Stop();
        }
        Console.WriteLine("COMPLETED!!!!!\nPress any key to exit.");

    }
}

With something like this:

String mDrawableName = "myappicon";
int resID = getResources().getIdentifier(mDrawableName , "drawable", getPackageName());

This function is generic function for every type of info. It counts the occurrence of the elements and then returns array with maximum occurring elements.

function mode () {
  var arr = [].slice.call(arguments);
  if ((args.length == 1) && (typeof args[0] === "object")) {
    args = args[0].mode();
  }

  var obj = {};
  for(var i = 0; i < arr.length; i++) {
    if(obj[arr[i]] === undefined) obj[arr[i]] = 1;
    else obj[arr[i]]++;
  }

  var max = 0;
  for (w in obj) {
    if (obj[w] > max) max = obj[w];
  }

  ret_val = [];
  for (w in obj) {
    if (obj[w] == max) ret_val.push(w);
  }

  return ret_val;
}

I had faced the same problem. Restarting the notebook solved my problem.

If that doesn't solve the problem, you can try this

pip install seaborn

Edit

As few people have posted in the comments, you can also use

python -m pip install seaborn

Plus, as per https://bugs.python.org/issue22295 it is a better way because in this case, you can specify which version of python (python3 or python2) to use for running pip

here is an example using css grid.

html, body{_x000D_
    height: 100%;_x000D_
    width: 100%;_x000D_
}_x000D_
.container{_x000D_
    height: 100%;_x000D_
    display:grid;_x000D_
    /*we divide the page into 3 parts*/_x000D_
    grid-template-rows: 20px auto  30px;_x000D_
    text-align: center;   /*this is to center the element*/ _x000D_
    _x000D_
}_x000D_
_x000D_
.container .footer{_x000D_
    grid-row: 3;   /*the footer will occupy the last row*/_x000D_
    display: inline-block;_x000D_
    margin-top: -20px;_x000D_
}

<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
    <meta charset="UTF-8">_x000D_
    <link rel="stylesheet" href="style.css">_x000D_
    <title>Document</title>_x000D_
</head>_x000D_
<body>_x000D_
    <div class="container">_x000D_
        <div class="header">_x000D_
_x000D_
        </div>_x000D_
        <div class="content">_x000D_
_x000D_
        </div>_x000D_
        <div class="footer">_x000D_
            here is the footer_x000D_
        </div>_x000D_
    </div>_x000D_
</body>_x000D_
</html>

you can use css grid:a concrete example

Your header file Hash.h declares "what class hash should look like", but not its implementation, which is (presumably) in some other source file we'll call Hash.cpp. By including the header in your main file, the compiler is informed of the description of class Hash when compiling the file, but not how class Hash actually works. When the linker tries to create the entire program, it then complains that the implementation (toHash::insert(int, char)) cannot be found.

The solution is to link all the files together when creating the actual program binary. When using the g++ frontend, you can do this by specifying all the source files together on the command line. For example:

g++ -o main Hash.cpp main.cpp

will create the main program called "main".

For example, a logout button can be written like this:

<button class="btn btn-primary" onclick="location.href={% url 'logout'%}">Logout</button>

Where logout endpoint:

#urls.py:
url(r'^logout/$', auth_views.logout, {'next_page': '/'}, name='logout'),

If you need to check for null, that is the way. However, if you have control on this, just return empty collection, whenever you can, and check only for empty later on.

This thread is about the same thing with C#, but the principles applies equally well to java. Like mentioned there, null should be returned only if

• null might mean something more specific;
• your API (contract) might force you to return null.

Simple JavaScript will do -

<form action="myservlet.do" method="POST">
    <select name="myselect" id="myselect" onchange="this.form.submit()">
        <option value="1">One</option>
        <option value="2">Two</option>
        <option value="3">Three</option>
        <option value="4">Four</option>
    </select>
</form>

Here is a link for a good javascript tutorial.

Use the .Select() after grouping:

var agencyContracts = _agencyContractsRepository.AgencyContracts
    .GroupBy(ac => new
                   {
                       ac.AgencyContractID, // required by your view model. should be omited
                                            // in most cases because group by primary key
                                            // makes no sense.
                       ac.AgencyID,
                       ac.VendorID,
                       ac.RegionID
                   })
    .Select(ac => new AgencyContractViewModel
                   {
                       AgencyContractID = ac.Key.AgencyContractID,
                       AgencyId = ac.Key.AgencyID,
                       VendorId = ac.Key.VendorID,
                       RegionId = ac.Key.RegionID,
                       Amount = ac.Sum(acs => acs.Amount),
                       Fee = ac.Sum(acs => acs.Fee)
                   });

if only 1 row, you can use join

Select t1.Col1, t1.Col2, t1.Col3, t2.Col4, t2.Col5 from Table1 t1 join Table2 t2;

Previous solutions were not working for me. I handled this issue as shown below.

layer_outputs = []
for i in range(1, len(model.layers)):
    tmp_model = Model(model.layers[0].input, model.layers[i].output)
    tmp_output = tmp_model.predict(img)[0]
    layer_outputs.append(tmp_output)

Why not consider creating your data class(es) as just a subclassed XmlDocument, then you get all of that for free. You don't need to serialize or create any off-doc nodes at all, and you get structure you want.

If you want to make it more sophisticated, write a base class that is a subclass of XmlDocument, then give it basic accessors, and you're set.

Here's a generic type I put together for a project...

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.IO;

namespace FWFWLib {
    public abstract class ContainerDoc : XmlDocument {

        protected XmlElement root = null;
        protected const string XPATH_BASE = "/$DATA_TYPE$";
        protected const string XPATH_SINGLE_FIELD = "/$DATA_TYPE$/$FIELD_NAME$";

        protected const string DOC_DATE_FORMAT = "yyyyMMdd";
        protected const string DOC_TIME_FORMAT = "HHmmssfff";
        protected const string DOC_DATE_TIME_FORMAT = DOC_DATE_FORMAT + DOC_TIME_FORMAT;

        protected readonly string datatypeName = "containerDoc";
        protected readonly string execid = System.Guid.NewGuid().ToString().Replace( "-", "" );

        #region startup and teardown
        public ContainerDoc( string execid, string datatypeName ) {
            root = this.DocumentElement;
            this.datatypeName = datatypeName;
            this.execid = execid;
            if( null == datatypeName || "" == datatypeName.Trim() ) {
                throw new InvalidDataException( "Data type name can not be blank" );
            }
            Init();
        }

        public ContainerDoc( string datatypeName ) {
            root = this.DocumentElement;
            this.datatypeName = datatypeName;
            if( null == datatypeName || "" == datatypeName.Trim() ) {
                throw new InvalidDataException( "Data type name can not be blank" );
            }
            Init();
        }

        private ContainerDoc() { /*...*/ }

        protected virtual void Init() {
            string basexpath = XPATH_BASE.Replace( "$DATA_TYPE$", datatypeName );
            root = (XmlElement)this.SelectSingleNode( basexpath );
            if( null == root ) {
                root = this.CreateElement( datatypeName );
                this.AppendChild( root );
            }
            SetFieldValue( "createdate", DateTime.Now.ToString( DOC_DATE_FORMAT ) );
            SetFieldValue( "createtime", DateTime.Now.ToString( DOC_TIME_FORMAT ) );
        }
        #endregion

        #region setting/getting data fields
        public virtual void SetFieldValue( string fieldname, object val ) {
            if( null == fieldname || "" == fieldname.Trim() ) {
                return;
            }
            fieldname = fieldname.Replace( " ", "_" ).ToLower();
            string xpath = XPATH_SINGLE_FIELD.Replace( "$FIELD_NAME$", fieldname ).Replace( "$DATA_TYPE$", datatypeName );
            XmlNode node = this.SelectSingleNode( xpath );
            if( null != node ) {
                if( null != val ) {
                    node.InnerText = val.ToString();
                }
            } else {
                node = this.CreateElement( fieldname );
                if( null != val ) {
                    node.InnerText = val.ToString();
                }
                root.AppendChild( node );
            }
        }

        public virtual string FieldValue( string fieldname ) {
            if( null == fieldname ) {
                fieldname = "";
            }
            fieldname = fieldname.ToLower().Trim();
            string rtn = "";
            XmlNode node = this.SelectSingleNode( XPATH_SINGLE_FIELD.Replace( "$FIELD_NAME$", fieldname ).Replace( "$DATA_TYPE$", datatypeName ) );
            if( null != node ) {
                rtn = node.InnerText;
            }
            return rtn.Trim();
        }

        public virtual string ToXml() {
            return this.OuterXml;
        }

        public override string ToString() {
            return ToXml();
        }
        #endregion

        #region io
        public void WriteTo( string filename ) {
            TextWriter tw = new StreamWriter( filename );
            tw.WriteLine( this.OuterXml );
            tw.Close();
            tw.Dispose();
        }

        public void WriteTo( Stream strm ) {
            TextWriter tw = new StreamWriter( strm );
            tw.WriteLine( this.OuterXml );
            tw.Close();
            tw.Dispose();
        }

        public void WriteTo( TextWriter writer ) {
            writer.WriteLine( this.OuterXml );
        }
        #endregion

    }
}

Another option is to use querySelector('.foo') or querySelectorAll('.foo') which have broader browser support than getElementsByClassName.

http://caniuse.com/#feat=queryselector

http://caniuse.com/#feat=getelementsbyclassname

The answers here all seem to come from a CS perspective so I want to add one from a developer perspective.

For a developer NULL is very useful. The answers here say NULL means unknown, and maybe in CS theory that's true, don't remember, it's been a while. In actual development though, at least in my experience, that happens about 1% of the time. The other 99% it is used for cases where the value is not UNKNOWN but it is KNOWN TO BE ABSENT.

For example:

• Client.LastPurchase, for a new client. It is not unknown, it is known that he hasn't made a purchase yet.

• When using an ORM with a Table per Class Hierarchy mapping, some values are just not mapped for certain classes.

• When mapping a tree structure a root will usually have Parent = NULL

• And many more...

I'm sure most developers at some point wrote WHERE value = NULL, didn't get any results, and that's how they learned about IS NULL syntax. Just look how many votes this question and the linked ones have.

SQL Databases are a tool, and they should be designed the way which is easiest for their users to understand.

The following is works best in my opinion:

Get-Item Env:PATH

1. It's shorter and therefore a little bit easier to remember than Get-ChildItem. There's no hierarchy with environment variables.
2. The command is symmetrical to one of the ways that's used for setting environment variables with Powershell. (EX: Set-Item -Path env:SomeVariable -Value "Some Value")
3. If you get in the habit of doing it this way you'll remember how to list all Environment variables; simply omit the entry portion. (EX: Get-Item Env:)

I found the syntax odd at first, but things started making more sense after I understood the notion of Providers. Essentially PowerShell let's you navigate disparate components of the system in a way that's analogous to a file system.

What's the point of the trailing colon in Env:? Try listing all of the "drives" available through Providers like this:

PS> Get-PSDrive

I only see a few results... (Alias, C, Cert, D, Env, Function, HKCU, HKLM, Variable, WSMan). It becomes obvious that Env is simply another "drive" and the colon is a familiar syntax to anyone who's worked in Windows.

You can navigate the drives and pick out specific values:

Get-ChildItem C:\Windows
Get-Item C:
Get-Item Env:
Get-Item HKLM:
Get-ChildItem HKLM:SYSTEM

By typing 'jupyter notebook --NotebookApp.iopub_data_rate_limit=1.0e10' in Anaconda PowerShell or prompt, the Jupyter notebook will open with the new configuration. Try now to run your query.

If you have a column called "col1" which is int, you cast it to String like this:

CONVERT(col1,char)

e.g. this allows you to check an int value is containing another value (here 9) like this:

CONVERT(col1,char) LIKE '%9%'

To set values, use:

df.at[0, 'clm1'] = 0

• The fastest recommended method for setting variables.
• set_value, ix have been deprecated.
• No warning, unlike iloc and loc

Angular RC5 & RC6

If you are getting the above mentioned error in your Jasmine tests, it is most likely because you have to declare the unrenderable component in your TestBed.configureTestingModule({}).

The TestBed configures and initializes an environment for unit testing and provides methods for mocking/creating/injecting components and services in unit tests.

If you don't declare the component before your unit tests are executed, Angular will not know what <courses></courses> is in your template file.

Here is an example:

import {async, ComponentFixture, TestBed} from "@angular/core/testing";
import {AppComponent} from "../app.component";
import {CoursesComponent} from './courses.component';

describe('CoursesComponent', () => {
  let component: CoursesComponent;
  let fixture: ComponentFixture<CoursesComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [
        AppComponent,
        CoursesComponent
      ],
      imports: [
        BrowserModule
        // If you have any other imports add them here
      ]
    })
    .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(CoursesComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });
});

you should declare label first use this :

    Select Case parameter 
        Case "userID"
                    ' does something here.
            Case "packageID"
                    ' does something here.
            Case "mvrType" 
                    If otherFactor Then 
                            ' does something here. 
                    Else 
                            GoTo else
                    End If 

            Case Else 
else :
                    ' does some processing... 
                    Exit Select 
    End Select

For those of you who visit this page looking for further clarification on this error, in my case the activity making the call to the fragment needed to have 2 implements in this case, like this:

public class MyActivity extends Activity implements 
    MyFragment.OnFragmentInteractionListener, 
    NavigationDrawerFragment.NaviationDrawerCallbacks {
    ...// rest of the code
}

I use:

NSInteger stringToInt(NSString *string) {
    return [string integerValue];
}

And vice versa:

NSString* intToString(NSInteger integer) {
    return [NSString stringWithFormat:@"%d", integer];
}

//use css
.blue {
    background-color:blue !important;
}
.blue th {
    color:white !important;
}

//html
<table class="table blue">.....</table>

Another type of solution would be to autogenerate the nginx conf files via Jinja2 templates from ansible. The advantage of this is easy deployment to a cloud environment, and easy to replicate on multiple dev machines

You can easily build a dictionary style collection...

function getQueryStrings() { 
  var assoc  = {};
  var decode = function (s) { return decodeURIComponent(s.replace(/\+/g, " ")); };
  var queryString = location.search.substring(1); 
  var keyValues = queryString.split('&'); 

  for(var i in keyValues) { 
    var key = keyValues[i].split('=');
    if (key.length > 1) {
      assoc[decode(key[0])] = decode(key[1]);
    }
  } 

  return assoc; 
} 

And use it like this...

var qs = getQueryStrings();
var myParam = qs["myParam"]; 

The third template parameter must be a class who has operator()(Node,Node) overloaded. So you will have to create a class this way:

class ComparisonClass {
    bool operator() (Node, Node) {
        //comparison code here
    }
};

And then you will use this class as the third template parameter like this:

priority_queue<Node, vector<Node>, ComparisonClass> q;

From Andy's Answer, For AngularJS - Filter

angular
    .module('utils', [])
.filter('mysqlToJS', function () {
            return function (mysqlStr) {
                var t, result = null;

                if (typeof mysqlStr === 'string') {
                    t = mysqlStr.split(/[- :]/);

                    //when t[3], t[4] and t[5] are missing they defaults to zero
                    result = new Date(t[0], t[1] - 1, t[2], t[3] || 0, t[4] || 0, t[5] || 0);
                }

                return result;
            };
        });

Four years passed, Google gave me this answer. With the standard C++11 (aka C++0x) there is actually a new pleasant way of doing this (at the price of breaking backward compatibility): the new auto keyword. It saves you the pain of having to explicitly specify the type of the iterator to use (repeating the vector type again), when it is obvious (to the compiler), which type to use. With v being your vector, you can do something like this:

for ( auto i = v.begin(); i != v.end(); i++ ) {
    std::cout << *i << std::endl;
}

C++11 goes even further and gives you a special syntax for iterating over collections like vectors. It removes the necessity of writing things that are always the same:

for ( auto &i : v ) {
    std::cout << i << std::endl;
}

To see it in a working program, build a file auto.cpp:

#include <vector>
#include <iostream>

int main(void) {
    std::vector<int> v = std::vector<int>();
    v.push_back(17);
    v.push_back(12);
    v.push_back(23);
    v.push_back(42);
    for ( auto &i : v ) {
        std::cout << i << std::endl;
    }
    return 0;
}

As of writing this, when you compile this with g++, you normally need to set it to work with the new standard by giving an extra flag:

g++ -std=c++0x -o auto auto.cpp

Now you can run the example:

$ ./auto
17
12
23
42

Please note that the instructions on compiling and running are specific to gnu c++ compiler on Linux, the program should be platform (and compiler) independent.

You can try the .delay()

$(".formSentMsg").delay(3200).fadeOut(300);

call the div set the delay time in milliseconds and set the property you want to change, in this case I used .fadeOut() so it could be animated, but you can use .hide() as well.

http://api.jquery.com/delay/

This is expected. Refer to Javadocs for split.

Splits this string around matches of the given regular expression.

This method works as if by invoking the two-argument split(java.lang.String,int) method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.

lookup only works on localhost. If you want to retrieve variables from a variables file you made remotely use include_vars: {{ varfile }} . Contents of {{ varfile }} should be a dictionary of the form {"key":"value"}, you will find ansible gives you trouble if you include a space after the colon.

The answer of crdunst is pretty neat and the best looking answer I've found but there's no explanation on how to use and the code is bigger than needed.

The only code you need:

#element {
    background-color: #cacbcf;
    text-shadow: 2px 2px 4px rgba(0,0,0, 0.5);
    filter: chroma(color=#cacbcf) progid:DXImageTransform.Microsoft.dropshadow(color=#60000000, offX=2, offY=2);
}

First you MUST specify a background-color - if your element should be transparent just copy the background-color of the parent or let it inherit. The color at the chroma-filter must match the background-color to fix those artifacts around the text (but here you must copy the color, you can't write inherit). Note that I haven't shortened the dropshadow-filter - it works but the shadows are then cut to the element dimensions (noticeable with big shadows; try to set the offsets to atleast 4).

TIP: If you want to use colors with transparency (alpha-channel) write in a #AARRGGBB notation, where AA stands for a hexadezimal value of the opacity - from 01 to FE, because FF and ironically also 00 means no transparency and is therefore useless.. ^^ Just go a little lower than in the rgba notation because the shadows aren't soft and the same alpha value would appear darker then. ;)

A nice snippet to convert the alpha value for IE (JavaScript, just paste into the console):

var number = 0.5; //alpha value from the rgba() notation
("0"+(Math.round(0.75 * number * 255).toString(16))).slice(-2);

ISSUES: The text/font behaves like an image after the shadow is applied; it gets pixelated and blurry after you zoom in... But that's IE's issue, not mine.

Live demo of the shadow here: http://jsfiddle.net/12khvfru/2/

List all variables set in the config file, along with their values.

git config --list

If you are new to git then use the following commands to set a user name and email address.

Set user name

git config --global user.name "your Name"

Set user email

git config --global user.email "[email protected]"

Check user name

git config user.name

Check user email

git config user.email

ng g c COMPONENTNAME should work, if your are getting module not found exception then try these things-

1. Check your project directory.
2. If you are using visual studio code then reload it or reopen your project in it.

Try this for revert all changes uncommited in local branch

$ git reset --hard HEAD

But if you see a error like this:

fatal: Unable to create '/directory/for/your/project/.git/index.lock': File exists.

You can navigate to '.git' folder then delete index.lock file:

$ cd /directory/for/your/project/.git/
$ rm index.lock

Finaly, run again the command:

$ git reset --hard HEAD

Selected response is correct, but someone like me, may have issues with async validation with sending request to the server-side - button will be not disabled during given request processing, so button will blink, which looks pretty strange for the users.

To void this, you just need to handle $pending state of the form:

<form name="myForm">
  <input name="myText" type="text" ng-model="mytext" required />
  <button ng-disabled="myForm.$invalid || myForm.$pending">Save</button>
</form>

A simple Monads explanation with a Marvel's case study is here.

Monads are abstractions used to sequence dependent functions that are effectful. Effectful here means they return a type in form F[A] for example Option[A] where Option is F, called type constructor. Let's see this in 2 simple steps

1. Below Function composition is transitive. So to go from A to C I can compose A => B and B => C.

 A => C   =   A => B  andThen  B => C

2. However, if the function returns an effect type like Option[A] i.e. A => F[B] the composition doesn't work as to go to B we need A => B but we have A => F[B].
   

   We need a special operator, "bind" that knows how to fuse these functions that return F[A].

 A => F[C]   =   A => F[B]  bind  B => F[C]

The "bind" function is defined for the specific F.

There is also "return", of type A => F[A] for any A, defined for that specific F also. To be a Monad, F must have these two functions defined for it.

Thus we can construct an effectful function A => F[B] from any pure function A => B,

 A => F[B]   =   A => B  andThen  return

but a given F can also define its own opaque "built-in" special functions of such types that a user can't define themself (in a pure language), like

• "random" (Range => Random[Int])
• "print" (String => IO[ () ])
• "try ... catch", etc.

Take a look at HTMLSelectElement.selectedOptions.

HTML

<select name="north-america" multiple>
  <option valud="ca" selected>Canada</a>
  <option value="mx" selected>Mexico</a>
  <option value="us">USA</a>
</select>

JavaScript

var elem = document.querySelector("select");

console.log(elem.selectedOptions);
//=> HTMLCollection [<option value="ca">Canada</option>, <option value="mx">Mexico</option>]

This would also work on non-multiple <select> elements

Warning: Support for this selectedOptions seems pretty unknown at this point

It's impossible to say without seeing your actual code. Likely the reason is a code path through your function that doesn't execute a return statement. When the code goes down that path, the function ends with no value returned, and so returns None.

Updated: It sounds like your code looks like this:

def b(self, p, data): 
    current = p 
    if current.data == data: 
        return True 
    elif current.data == 1:
        return False 
    else: 
        self.b(current.next, data)

That else clause is your None path. You need to return the value that the recursive call returns:

    else:
        return self.b(current.next, data)

BTW: using recursion for iterative programs like this is not a good idea in Python. Use iteration instead. Also, you have no clear termination condition.

Once you have a JArray you can treat it just like any other Enumerable object, and using linq you can access them, check them, verify them, and select them.

var str = @"[1, 2, 3]";
var jArray = JArray.Parse(str);
Console.WriteLine(String.Join("-", jArray.Where(i => (int)i > 1).Select(i => i.ToString())));

import sys

try: 
    # your code here
except Exception as err:
    print("Error: " + str(err))
sys.exit(50) # whatever non zero exit code

For me the basic oracle only was not installed. Please ensure you have oracle installed and then try checking host and port.

For your information, the python equivalent is:

imageBuffer = cv.LoadImage( strSrc )
nW = new X size
nH = new Y size
smallerImage = cv.CreateImage( (nH, nW), imageBuffer.depth, imageBuffer.nChannels )
cv.Resize( imageBuffer, smallerImage , interpolation=cv.CV_INTER_CUBIC )
cv.SaveImage( strDst, smallerImage )

• Open Android studio.
• Go to setting > System Setting > Android SDK
• Get the "Android SDK Location".
• Set the environment variable ANDROID_SDK_ROOT to this value.

It worked for me and I'm on Windows 10 and Android studio 2.3.3

int dp1 = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1,
            context.getResources().getDisplayMetrics());

tv.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
dp1 * 100)); // if you want to set layout height to 100dp

llview.addView(tv);

I would say Anbu's answer perfectly fine but I had to add guard while fetching preferences to make my program doesn't fail

Here is the updated code snip in Swift 5

Storing data in UserDefaults

@IBAction func savePreferenceData(_ sender: Any) {
        print("Storing data..")
        UserDefaults.standard.set("RDC", forKey: "UserName") //String
        UserDefaults.standard.set("TestPass", forKey: "Passowrd")  //String
        UserDefaults.standard.set(21, forKey: "Age")  //Integer

    }

Fetching data from UserDefaults

    @IBAction func fetchPreferenceData(_ sender: Any) {
        print("Fetching data..")

        //added guard
        guard let uName = UserDefaults.standard.string(forKey: "UserName") else { return }
        print("User Name is :"+uName)
        print(UserDefaults.standard.integer(forKey: "Age"))
    }

1. Go to project properties (Alt+F7)
2. Under Debugging, look to the right
3. There's an Environment field.
4. Add your relative path there (relative to vcproj folder) i.e. ..\some-framework\lib by appending PATH=%PATH%;$(ProjectDir)\some-framework\lib or prepending to the path PATH=C:\some-framework\lib;%PATH%
5. Hit F5 (debug) again and it should work.