In my Visual Studio 2019 it worked only after I set the AutoSizeColumnsMode property to None.

This will format column A as text, B as General, C as a number.

Sub formatColumns()
 Columns(1).NumberFormat = "@"
 Columns(2).NumberFormat = "General"
 Columns(3).NumberFormat = "0"
End Sub

1. Wrap your buttons in a div with class='col-xs-3' (for example).
2. Add class="btn-block" to your buttons.

This will provide permanent spacing.

check the link below, it has the html, css, JS and a live demo :) enjoy

http://codepen.io/senff/pen/ayGvD

// Create a clone of the menu, right next to original._x000D_
$('.menu').addClass('original').clone().insertAfter('.menu').addClass('cloned').css('position','fixed').css('top','0').css('margin-top','0').css('z-index','500').removeClass('original').hide();_x000D_
_x000D_
scrollIntervalID = setInterval(stickIt, 10);_x000D_
_x000D_
_x000D_
function stickIt() {_x000D_
_x000D_
  var orgElementPos = $('.original').offset();_x000D_
  orgElementTop = orgElementPos.top;               _x000D_
_x000D_
  if ($(window).scrollTop() >= (orgElementTop)) {_x000D_
    // scrolled past the original position; now only show the cloned, sticky element._x000D_
_x000D_
    // Cloned element should always have same left position and width as original element.     _x000D_
    orgElement = $('.original');_x000D_
    coordsOrgElement = orgElement.offset();_x000D_
    leftOrgElement = coordsOrgElement.left;  _x000D_
    widthOrgElement = orgElement.css('width');_x000D_
_x000D_
    $('.cloned').css('left',leftOrgElement+'px').css('top',0).css('width',widthOrgElement+'px').show();_x000D_
    $('.original').css('visibility','hidden');_x000D_
  } else {_x000D_
    // not scrolled past the menu; only show the original menu._x000D_
    $('.cloned').hide();_x000D_
    $('.original').css('visibility','visible');_x000D_
  }_x000D_
}

* {font-family:arial; margin:0; padding:0;}_x000D_
.logo {font-size:40px; font-weight:bold;color:#00a; font-style:italic;}_x000D_
.intro {color:#777; font-style:italic; margin:10px 0;}_x000D_
.menu {background:#00a; color:#fff; height:40px; line-height:40px;letter-spacing:1px; width:100%;}_x000D_
.content {margin-top:10px;}_x000D_
.menu-padding {padding-top:40px;}_x000D_
.content {padding:10px;}_x000D_
.content p {margin-bottom:20px;}

<div class="intro">Some tagline goes here</div>

Use the === operator (strict equality) as below,

if (data === parseInt(data, 10))
    alert("data is integer")
else
    alert("data is not an integer")

Here is a table of the different events and the levels of browser support. You need to pick an event which is supported across at least all modern browsers.

As you will see from the table, the keypress and change event do not have uniform support whereas the keyup event does.

Also make sure you attach the event handler using a cross-browser-compatible method...

If you are using WAMP then type the following in the browser
http://localhost/?phpinfo=-1, you will get the phpinfo page.

phpinfo() from localhost

You can also click the localhost icon in the wamp menu from the systray and then find the phpinfo page. WAMP localhost from WAMP Menu

Yes, it is a hash mapping or hash table. You can read a description of python's dict implementation, as written by Tim Peters, here.

That's why you can't use something 'not hashable' as a dict key, like a list:

>>> a = {}
>>> b = ['some', 'list']
>>> hash(b)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: list objects are unhashable
>>> a[b] = 'some'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: list objects are unhashable

You can read more about hash tables or check how it has been implemented in python and why it is implemented that way.

just type clrscr(); function in void main().

as example:

void main()
{
clrscr();
printf("Hello m fresher in programming c.");
getch();
}

clrscr();

function easy to clear screen.

Create a custom authorization attribute based on AuthorizeAttribute and override OnAuthorization to perform the check how you want it done. Normally, AuthorizeAttribute will set the filter result to HttpUnauthorizedResult if the authorization check fails. You could have it set it to a ViewResult (of your Error view) instead.

EDIT: I have a couple of blog posts that go into more detail:

• http://farm-fresh-code.blogspot.com/2011/03/revisiting-custom-authorization-in.html
• http://farm-fresh-code.blogspot.com/2009/11/customizing-authorization-in-aspnet-mvc.html

Example:

    [AttributeUsage( AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false )]
    public class MasterEventAuthorizationAttribute : AuthorizeAttribute
    {
        /// <summary>
        /// The name of the master page or view to use when rendering the view on authorization failure.  Default
        /// is null, indicating to use the master page of the specified view.
        /// </summary>
        public virtual string MasterName { get; set; }

        /// <summary>
        /// The name of the view to render on authorization failure.  Default is "Error".
        /// </summary>
        public virtual string ViewName { get; set; }

        public MasterEventAuthorizationAttribute()
            : base()
        {
            this.ViewName = "Error";
        }

        protected void CacheValidateHandler( HttpContext context, object data, ref HttpValidationStatus validationStatus )
        {
            validationStatus = OnCacheAuthorization( new HttpContextWrapper( context ) );
        }

        public override void OnAuthorization( AuthorizationContext filterContext )
        {
            if (filterContext == null)
            {
                throw new ArgumentNullException( "filterContext" );
            }

            if (AuthorizeCore( filterContext.HttpContext ))
            {
                SetCachePolicy( filterContext );
            }
            else if (!filterContext.HttpContext.User.Identity.IsAuthenticated)
            {
                // auth failed, redirect to login page
                filterContext.Result = new HttpUnauthorizedResult();
            }
            else if (filterContext.HttpContext.User.IsInRole( "SuperUser" ))
            {
                // is authenticated and is in the SuperUser role
                SetCachePolicy( filterContext );
            }
            else
            {
                ViewDataDictionary viewData = new ViewDataDictionary();
                viewData.Add( "Message", "You do not have sufficient privileges for this operation." );
                filterContext.Result = new ViewResult { MasterName = this.MasterName, ViewName = this.ViewName, ViewData = viewData };
            }

        }

        protected void SetCachePolicy( AuthorizationContext filterContext )
        {
            // ** IMPORTANT **
            // Since we're performing authorization at the action level, the authorization code runs
            // after the output caching module. In the worst case this could allow an authorized user
            // to cause the page to be cached, then an unauthorized user would later be served the
            // cached page. We work around this by telling proxies not to cache the sensitive page,
            // then we hook our custom authorization code into the caching mechanism so that we have
            // the final say on whether a page should be served from the cache.
            HttpCachePolicyBase cachePolicy = filterContext.HttpContext.Response.Cache;
            cachePolicy.SetProxyMaxAge( new TimeSpan( 0 ) );
            cachePolicy.AddValidationCallback( CacheValidateHandler, null /* data */);
        }


    }

I used tensorflow 1.8 to train my model and there is no problem for now. Tensorflow 2.0 alpha is not suitable with object detection API

expanding on @leaf 's answer, here's one that can take multiple characters:

var trim = function (s, t) {
  var tr, sr
  tr = t.split('').map(e => `\\\\${e}`).join('')
  sr = s.replace(new RegExp(`^[${tr}]+|[${tr}]+$`, 'g'), '')
  return sr
}

For those who are still looking for an answer. Here is a recursive approach to get the paths in a dictionary.

import os


def list_files(startpath):
    for root, dirs, files in os.walk(startpath):
        dir_content = []
        for dir in dirs:
            go_inside = os.path.join(startpath, dir)
            dir_content.append(list_files(go_inside))
        files_lst = []
        for f in files:
            files_lst.append(f)
        return {'name': root, 'files': files_lst, 'dirs': dir_content}

You can check if it can be converted to decimal. If yes, then its a number

from decimal import Decimal

def is_number(value):
    try:
        value = Decimal(value)
        return True
    except:
        return False

print is_number(None)   // False
print is_number(0)      // True
print is_number(2.3)    // True
print is_number('2.3')  // True (caveat!)

open AndroidMainfest then add verionCode, versionName in application tag and make sure debug able equal false:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="...">

<application
    ...
    android:debuggable="false"
    android:versionCode="1"
    android:versionName="1.0"
    tools:ignore="HardcodedDebugMode">
    ...
</application>

then open build.gradle (module:app) make sure verionCode, versionName exited and minsdk <= your mobile sdk:

defaultConfig {
    ...
    minSdkVersion 19
    targetSdkVersion 28
    versionCode 1
    versionName "1.0"
   ...
}

look into sources: https://developer.android.com/studio/publish/

& https://developer.android.com/studio/publish/preparing

& https://developer.android.com/studio/publish/versioning

and https://developer.android.com/studio/publish/app-signing

It's because your statement does not produce output.

Besides all the warnings of Darin and lazy (they are right); the question still offerst something to learn.

If you want to execute methods that don't directly produce output, you do:

@{ Response.Redirect("~/Account/LogIn?returnUrl=Products");}

This is also true for rendering partials like:

@{ Html.RenderPartial("_MyPartial"); }

These are two different modes in which your computer can operate. Prior to this, when computers were like a big room, if something crashes – it halts the whole computer. So computer architects decide to change it. Modern microprocessors implement in hardware at least 2 different states.

User mode:

• mode where all user programs execute. It does not have access to RAM and hardware. The reason for this is because if all programs ran in kernel mode, they would be able to overwrite each other’s memory. If it needs to access any of these features – it makes a call to the underlying API. Each process started by windows except of system process runs in user mode.

Kernel mode:

• mode where all kernel programs execute (different drivers). It has access to every resource and underlying hardware. Any CPU instruction can be executed and every memory address can be accessed. This mode is reserved for drivers which operate on the lowest level

How the switch occurs.

The switch from user mode to kernel mode is not done automatically by CPU. CPU is interrupted by interrupts (timers, keyboard, I/O). When interrupt occurs, CPU stops executing the current running program, switch to kernel mode, executes interrupt handler. This handler saves the state of CPU, performs its operations, restore the state and returns to user mode.

http://en.wikibooks.org/wiki/Windows_Programming/User_Mode_vs_Kernel_Mode

http://tldp.org/HOWTO/KernelAnalysis-HOWTO-3.html

http://en.wikipedia.org/wiki/Direct_memory_access

http://en.wikipedia.org/wiki/Interrupt_request

Actually, it is

private const int TheAnswer = 42;

At least if you look at the .NET library, which IMO is the best way to decide naming conventions - so your code doesn't look out of place.

I don't know what "milliseconds and float seconds" means, but this should give you an idea:

#include <chrono>
#include <thread>
#include <iostream>

int main()
{
  auto then = std::chrono::system_clock::now();
  std::this_thread::sleep_for(std::chrono::seconds(1));
  auto now = std::chrono::system_clock::now();
  auto dur = now - then;
  typedef std::chrono::duration<float> float_seconds;
  auto secs = std::chrono::duration_cast<float_seconds>(dur);
  std::cout << secs.count() << '\n';
}

Even though @Ignacio gave you a straightforward solution, I thought I might add an answer that gives you some more details about the issues with your code...

# You are not saving this result into a variable to reuse
os.path.join(src_dir, f)
# Should be
src_path = os.path.join(src_dir, f)

# you open the file but you dont again use a variable to reference
with open(f)
# should be
with open(src_path) as fh

# this is actually just looping over each character 
# in each result of your os.listdir
for line in f
# you should loop over lines in the open file handle
for line in fh

# write? Is this a method you wrote because its not a python builtin function
write(line)
# write to the file
fh.write(line)

Only changing the settings with the following command did not work in my environment:

curl -XPUT -H "Content-Type: application/json" http://localhost:9200/_all/_settings -d '{"index.blocks.read_only_allow_delete": null}'

I had to also ran the Force Merge API command:

curl -X POST "localhost:9200/my-index-000001/_forcemerge?pretty"

ref: Force Merge API

From the manual: The SELECT ... INTO OUTFILE statement is intended primarily to let you very quickly dump a table to a text file on the server machine. If you want to create the resulting file on some client host other than the server host, you cannot use SELECT ... INTO OUTFILE. In that case, you should instead use a command such as mysql -e "SELECT ..." > file_name to generate the file on the client host."

http://dev.mysql.com/doc/refman/5.0/en/select.html

An example:

mysql -h my.db.com -u usrname--password=pass db_name -e 'SELECT foo FROM bar' > /tmp/myfile.txt

You can use the _.deburr() method from the Lodash library.

It's available as a stand-alone NPM package lodash.deburr, or as part of the lodash package.

const myStringWithAccent = 'Mon café est plein de caféïne';
const myStringWithoutAccent = _.deburr( myStringWithAccent, );

The result will be : "Mon cafe est plein de cafeine"

Set the CSS position: relative; on the box. This causes all absolute positions of objects inside to be relative to the corners of that box. Then set the following CSS on the "Bet 5 days ago" line:

position: absolute;
bottom: 0;
right: 0;

If you need to space the text farther away from the edge, you could change 0 to 2px or similar.

SELECT LASTNAME, COUNT(*)
FROM STUDENTS
GROUP BY LASTNAME
ORDER BY COUNT(*) DESC

Other answers here provide solutions for triggering change detection cycles that will update component's view (which is not same as full re-render).

Full re-render, which would destroy and reinitialize component (calling all lifecycle hooks and rebuilding view) can be done by using ng-template, ng-container and ViewContainerRef in following way:

<div>
  <ng-container #outlet >
  </ng-container>
</div>

<ng-template #content>
  <child></child>
</ng-template>

Then in component having reference to both #outlet and #content we can clear outlets' content and insert another instance of child component:

@ViewChild("outlet", {read: ViewContainerRef}) outletRef: ViewContainerRef;
@ViewChild("content", {read: TemplateRef}) contentRef: TemplateRef<any>;

private rerender() {
    this.outletRef.clear();
    this.outletRef.createEmbeddedView(this.contentRef);
}

Additionally initial content should be inserted on AfterContentInit hook:

ngAfterContentInit() {
    this.outletRef.createEmbeddedView(this.contentRef);
}

Full working solution can be found here https://stackblitz.com/edit/angular-component-rerender .

In SQL Server Management Studio you can just right click the table in the object explorer and select "View Dependencies". This would give a you a good starting point. It shows tables, views, and procedures that reference the table.

Your @POST method should be accepting a JSON object instead of a string. Jersey uses JAXB to support marshaling and unmarshaling JSON objects (see the jersey docs for details). Create a class like:

@XmlRootElement
public class MyJaxBean {
    @XmlElement public String param1;
    @XmlElement public String param2;
}

Then your @POST method would look like the following:

@POST @Consumes("application/json")
@Path("/create")
public void create(final MyJaxBean input) {
    System.out.println("param1 = " + input.param1);
    System.out.println("param2 = " + input.param2);
}

This method expects to receive JSON object as the body of the HTTP POST. JAX-RS passes the content body of the HTTP message as an unannotated parameter -- input in this case. The actual message would look something like:

POST /create HTTP/1.1
Content-Type: application/json
Content-Length: 35
Host: www.example.com

{"param1":"hello","param2":"world"}

Using JSON in this way is quite common for obvious reasons. However, if you are generating or consuming it in something other than JavaScript, then you do have to be careful to properly escape the data. In JAX-RS, you would use a MessageBodyReader and MessageBodyWriter to implement this. I believe that Jersey already has implementations for the required types (e.g., Java primitives and JAXB wrapped classes) as well as for JSON. JAX-RS supports a number of other methods for passing data. These don't require the creation of a new class since the data is passed using simple argument passing.

HTML <FORM>

The parameters would be annotated using @FormParam:

@POST
@Path("/create")
public void create(@FormParam("param1") String param1,
                   @FormParam("param2") String param2) {
    ...
}

The browser will encode the form using "application/x-www-form-urlencoded". The JAX-RS runtime will take care of decoding the body and passing it to the method. Here's what you should see on the wire:

POST /create HTTP/1.1
Host: www.example.com
Content-Type: application/x-www-form-urlencoded;charset=UTF-8
Content-Length: 25

param1=hello&param2=world

The content is URL encoded in this case.

If you do not know the names of the FormParam's you can do the following:

@POST @Consumes("application/x-www-form-urlencoded")
@Path("/create")
public void create(final MultivaluedMap<String, String> formParams) {
    ...
}

HTTP Headers

You can using the @HeaderParam annotation if you want to pass parameters via HTTP headers:

@POST
@Path("/create")
public void create(@HeaderParam("param1") String param1,
                   @HeaderParam("param2") String param2) {
    ...
}

Here's what the HTTP message would look like. Note that this POST does not have a body.

POST /create HTTP/1.1
Content-Length: 0
Host: www.example.com
param1: hello
param2: world

I wouldn't use this method for generalized parameter passing. It is really handy if you need to access the value of a particular HTTP header though.

HTTP Query Parameters

This method is primarily used with HTTP GETs but it is equally applicable to POSTs. It uses the @QueryParam annotation.

@POST
@Path("/create")
public void create(@QueryParam("param1") String param1,
                   @QueryParam("param2") String param2) {
    ...
}

Like the previous technique, passing parameters via the query string does not require a message body. Here's the HTTP message:

POST /create?param1=hello&param2=world HTTP/1.1
Content-Length: 0
Host: www.example.com

You do have to be particularly careful to properly encode query parameters on the client side. Using query parameters can be problematic due to URL length restrictions enforced by some proxies as well as problems associated with encoding them.

HTTP Path Parameters

Path parameters are similar to query parameters except that they are embedded in the HTTP resource path. This method seems to be in favor today. There are impacts with respect to HTTP caching since the path is what really defines the HTTP resource. The code looks a little different than the others since the @Path annotation is modified and it uses @PathParam:

@POST
@Path("/create/{param1}/{param2}")
public void create(@PathParam("param1") String param1,
                   @PathParam("param2") String param2) {
    ...
}

The message is similar to the query parameter version except that the names of the parameters are not included anywhere in the message.

POST /create/hello/world HTTP/1.1
Content-Length: 0
Host: www.example.com

This method shares the same encoding woes that the query parameter version. Path segments are encoded differently so you do have to be careful there as well.

As you can see, there are pros and cons to each method. The choice is usually decided by your clients. If you are serving FORM-based HTML pages, then use @FormParam. If your clients are JavaScript+HTML5-based, then you will probably want to use JAXB-based serialization and JSON objects. The MessageBodyReader/Writer implementations should take care of the necessary escaping for you so that is one fewer thing that can go wrong. If your client is Java based but does not have a good XML processor (e.g., Android), then I would probably use FORM encoding since a content body is easier to generate and encode properly than URLs are. Hopefully this mini-wiki entry sheds some light on the various methods that JAX-RS supports.

Note: in the interest of full disclosure, I haven't actually used this feature of Jersey yet. We were tinkering with it since we have a number of JAXB+JAX-RS applications deployed and are moving into the mobile client space. JSON is a much better fit that XML on HTML5 or jQuery-based solutions.

Adding to Gaby's post, my jdbc getTables() for Oracle 10g requires all caps to work:

"employee" -> "EMPLOYEE"

Otherwise I would get an exception:

java.sql.SqlExcepcion exhausted resultset

(even though "employee" is in the schema)

Because the vertical-align is set at baseline as default.

Use vertical-align:top instead:

.small{
    display: inline-block;
    width: 40%;
    height: 30%;
    border: 1px black solid;
    background: aliceblue;   
    vertical-align:top;
}

http://jsfiddle.net/Lighty_46/RHM5L/9/

Or as @f00644 said you could apply float to the child elements as well.

I had the same problem and I fixed it by using the

1. new context menu "Make Public".
2. Go to https://console.aws.amazon.com/s3/home,
3. select the bucket and then for each Folder or File (or multiple selects) right click and
4. "make public"

Go to simplelogger.properties in ${MAVEN_HOME}/conf/logging/ and set the following properties:

org.slf4j.simpleLogger.defaultLogLevel=warn
org.slf4j.simpleLogger.log.Sisu=warn
org.slf4j.simpleLogger.warnLevelString=warn

And beware: warn, not warning

- (void)viewDidLoad
{
   [self.tableView setSeparatorColor:[UIColor myColor]];
}

I hope that helps - you'll need the self. to access it, remember.

Swift 4.2

tableView.separatorColor = UIColor.red

::-webkit-input-placeholder { /* WebKit browsers */
    color:    #999;
}
:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color:    #999;
}
::-moz-placeholder { /* Mozilla Firefox 19+ */
    color:    #999;
}
:-ms-input-placeholder { /* Internet Explorer 10+ */
    color:    #999;
}

Wait -- did you actually mean that "the same number of rows ... are being processed" or that "the same number of rows are being returned"? In general, the outer join would process many more rows, including those for which there is no match, even if it returns the same number of records.

The exact answer depends on the context. In general, these characters must not be present (HTML 5.2 §3.2.4.2.5):

Text nodes and attribute values must consist of Unicode characters, must not contain U+0000 characters, must not contain permanently undefined Unicode characters (noncharacters), and must not contain control characters other than space characters. This specification includes extra constraints on the exact value of Text nodes and attribute values depending on their precise context.

For elements in HTML, the constraints of the Text content model also depends on the kind of element. For instance, an "<" inside a textarea element does not need to be escaped in HTML because textarea is an escapable raw text element.

These restrictions are scattered across the specification. E.g., attribute values (§8.1.2.3) must not contain an ambiguous ampersand and be either (i) empty, (ii) within single quotes (and thus must not contain U+0027 APOSTROPHE character '), (iii) within double quotes (must not contain U+0022 QUOTATION MARK character "), or (iv) unquoted — with the following restrictions:

... must not contain any literal space characters, any U+0022 QUOTATION MARK characters ("), U+0027 APOSTROPHE characters ('), U+003D EQUALS SIGN characters (=), U+003C LESS-THAN SIGN characters (<), U+003E GREATER-THAN SIGN characters (>), or U+0060 GRAVE ACCENT characters (`), and must not be the empty string.

You can do it like this -

let arr1 = [_x000D_
    { id: "abdc4051", date: "2017-01-24" },_x000D_
    { id: "abdc4052", date: "2017-01-22" }_x000D_
];_x000D_
_x000D_
let arr2 = [_x000D_
    { id: "abdc4051", name: "ab" },_x000D_
    { id: "abdc4052", name: "abc" }_x000D_
];_x000D_
_x000D_
let arr3 = arr1.map((item, i) => Object.assign({}, item, arr2[i]));_x000D_
_x000D_
console.log(arr3);

Use below code if arr1 and arr2 are in a different order:

let arr1 = [_x000D_
  { id: "abdc4051", date: "2017-01-24" }, _x000D_
  { id: "abdc4052", date: "2017-01-22" }_x000D_
];_x000D_
_x000D_
let arr2 = [_x000D_
  { id: "abdc4051", name: "ab" },_x000D_
  { id: "abdc4052", name: "abc" }_x000D_
];_x000D_
_x000D_
let merged = [];_x000D_
_x000D_
for(let i=0; i<arr1.length; i++) {_x000D_
  merged.push({_x000D_
   ...arr1[i], _x000D_
   ...(arr2.find((itmInner) => itmInner.id === arr1[i].id))}_x000D_
  );_x000D_
}_x000D_
_x000D_
console.log(merged);

Use this if arr1 and arr2 are in a same order

let arr1 = [_x000D_
  { id: "abdc4051", date: "2017-01-24" }, _x000D_
  { id: "abdc4052", date: "2017-01-22" }_x000D_
];_x000D_
_x000D_
let arr2 = [_x000D_
  { id: "abdc4051", name: "ab" },_x000D_
  { id: "abdc4052", name: "abc" }_x000D_
];_x000D_
_x000D_
let merged = [];_x000D_
_x000D_
for(let i=0; i<arr1.length; i++) {_x000D_
  merged.push({_x000D_
   ...arr1[i], _x000D_
   ...arr2[i]_x000D_
  });_x000D_
}_x000D_
_x000D_
console.log(merged);

I performed tests on Eclipse vs Netbeans 8.0.2, both with Java version 1.8; I used System.nanoTime() for measurements.

Eclipse:

I got the same time on both cases - around 1.564 seconds.

Netbeans:

• Using "#": 1.536 seconds
• Using "B": 44.164 seconds

So, it looks like Netbeans has bad performance on print to console.

After more research I realized that the problem is line-wrapping of the max buffer of Netbeans (it's not restricted to System.out.println command), demonstrated by this code:

for (int i = 0; i < 1000; i++) {
    long t1 = System.nanoTime();
    System.out.print("BBB......BBB"); \\<-contain 1000 "B"
    long t2 = System.nanoTime();
    System.out.println(t2-t1);
    System.out.println("");
}

The time results are less then 1 millisecond every iteration except every fifth iteration, when the time result is around 225 millisecond. Something like (in nanoseconds):

BBB...31744
BBB...31744
BBB...31744
BBB...31744
BBB...226365807
BBB...31744
BBB...31744
BBB...31744
BBB...31744
BBB...226365807
.
.
.

And so on..

Summary:

1. Eclipse works perfectly with "B"
2. Netbeans has a line-wrapping problem that can be solved (because the problem does not occur in eclipse)(without adding space after B ("B ")).

I try to explain the Bayes rule with an example.

What is the chance that a random person selected from the society is a smoker?

You may reply 10%, and let's assume that's right.

Now, what if I say that the random person is a man and is 15 years old?

You may say 15 or 20%, but why?.

In fact, we try to update our initial guess with new pieces of evidence ( P(smoker) vs. P(smoker | evidence) ). The Bayes rule is a way to relate these two probabilities.

P(smoker | evidence) = P(smoker)* p(evidence | smoker)/P(evidence)

Each evidence may increase or decrease this chance. For example, this fact that he is a man may increase the chance provided that this percentage (being a man) among non-smokers is lower.

In the other words, being a man must be an indicator of being a smoker rather than a non-smoker. Therefore, if an evidence is an indicator of something, it increases the chance.

But how do we know that this is an indicator?

For each feature, you can compare the commonness (probability) of that feature under the given conditions with its commonness alone. (P(f | x) vs. P(f)).

P(smoker | evidence) / P(smoker) = P(evidence | smoker)/P(evidence)

For example, if we know that 90% of smokers are men, it's not still enough to say whether being a man is an indicator of being smoker or not. For example if the probability of being a man in the society is also 90%, then knowing that someone is a man doesn't help us ((90% / 90%) = 1. But if men contribute to 40% of the society, but 90% of the smokers, then knowing that someone is a man increases the chance of being a smoker (90% / 40%) = 2.25, so it increases the initial guess (10%) by 2.25 resulting 22.5%.

However, if the probability of being a man was 95% in the society, then regardless of the fact that the percentage of men among smokers is high (90%)! the evidence that someone is a man decreases the chance of him being a smoker! (90% / 95%) = 0.95).

So we have:

P(smoker | f1, f2, f3,... ) = P(smoker) * contribution of f1* contribution of f2 *... 
=
P(smoker)* 
(P(being a man | smoker)/P(being a man))*
(P(under 20 | smoker)/ P(under 20))

Note that in this formula we assumed that being a man and being under 20 are independent features so we multiplied them, it means that knowing that someone is under 20 has no effect on guessing that he is man or woman. But it may not be true, for example maybe most adolescence in a society are men...

To use this formula in a classifier

The classifier is given with some features (being a man and being under 20) and it must decide if he is an smoker or not (these are two classes). It uses the above formula to calculate the probability of each class under the evidence (features), and it assigns the class with the highest probability to the input. To provide the required probabilities (90%, 10%, 80%...) it uses the training set. For example, it counts the people in the training set that are smokers and find they contribute 10% of the sample. Then for smokers checks how many of them are men or women .... how many are above 20 or under 20....In the other words, it tries to build the probability distribution of the features for each class based on the training data.

Here's a function to log entries of a FormData object to the console as an object.

export const logFormData = (formData) => {
    const entries = formData.entries();
    const result = {};
    let next;
    let pair;
    while ((next = entries.next()) && next.done === false) {
        pair = next.value;
        result[pair[0]] = pair[1];
    }
    console.log(result);
};

MDN doc on .entries()

MDN doc on .next() and .done

Thanks I have added below snippet in POM.xml file and Mp problem resolved and create fat jar file that include all dependent jars.

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
        <executions>
            <execution>
                <phase>package</phase>
                <goals>
                    <goal>single</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <descriptorRefs>
                <descriptorRef>dependencies</descriptorRef>
            </descriptorRefs>
        </configuration>
    </plugin>
</plugins>

use

$imageString = file_get_contents("http://example.com/image.jpg");
$save = file_put_contents('Image/saveto/image.jpg',$imageString);

Though this is an old post, I am posting how I resolved in case it helps others. Since I used sudo to do the install of the boto3 library the permissions on the boto3 directory was set to 700. Either change the permissions to be readable by others or run the python command as sudo.

You need to use regular expressions to identify the unwanted characters. For the most easily readable code, you want the str_replace_all from the stringr package, though gsub from base R works just as well.

The exact regular expression depends upon what you are trying to do. You could just remove those specific characters that you gave in the question, but it's much easier to remove all punctuation characters.

x <- "a1~!@#$%^&*(){}_+:\"<>?,./;'[]-=" #or whatever
str_replace_all(x, "[[:punct:]]", " ")

(The base R equivalent is gsub("[[:punct:]]", " ", x).)

An alternative is to swap out all non-alphanumeric characters.

str_replace_all(x, "[^[:alnum:]]", " ")

Note that the definition of what constitutes a letter or a number or a punctuatution mark varies slightly depending upon your locale, so you may need to experiment a little to get exactly what you want.

objdump -T *.so may also do the job

Separating HTML from PHP is the best method. It's less confusing and easy to debug.

<?php
  while($var)
  {
?>

     <div>
         <h3><a href="User<?php echo $i;?>"><?php echo $i;?></a></h3>
         <div>Lorem ipsum dolor sit amet.</div>
     </div>

<?php
  $i++;
  }
?>

If you want to ignore lines with only whitespace:

if not line.strip():
    ... do something

The empty string is a False value.

Or if you really want only empty lines:

if line in ['\n', '\r\n']:
    ... do  something

It is better to add CORS enabling code on Server Side. To enable CORS in NodeJS and ExpressJs based application following code should be included-

var app = express();

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

If you do hard code it, you should probably use the full path (href="http://example.com/public/css/app.css"). However, this means you'll have to manually adjust the URLs for development and production.

An Alternative to the above solutions would be to use <link rel="stylesheet" href="URL::to_asset('css/app.css')" /> in Laravel 3 or <link rel="stylesheet" href="URL::asset('css/app.css')" /> in Laravel 4. This will allow you to write your HTML the way you want it, but also let Laravel generate the proper path for you in any environment.

You can use the setsockopt function to set a timeout on receive operations:

SO_RCVTIMEO

Sets the timeout value that specifies the maximum amount of time an input function waits until it completes. It accepts a timeval structure with the number of seconds and microseconds specifying the limit on how long to wait for an input operation to complete. If a receive operation has blocked for this much time without receiving additional data, it shall return with a partial count or errno set to [EAGAIN] or [EWOULDBLOCK] if no data is received. The default for this option is zero, which indicates that a receive operation shall not time out. This option takes a timeval structure. Note that not all implementations allow this option to be set.

// LINUX
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);

// WINDOWS
DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);

// MAC OS X (identical to Linux)
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);

Reportedly on Windows this should be done before calling bind. I have verified by experiment that it can be done either before or after bind on Linux and OS X.

No, there isn't a boolean type in Oracle Database, but you can do this way:

You can put a check constraint on a column.

If your table hasn't a check column, you can add it:

ALTER TABLE table_name
ADD column_name_check char(1) DEFAULT '1';

When you add a register, by default this column get 1.

Here you put a check that limit the column value, just only put 1 or 0

ALTER TABLE table_name ADD
CONSTRAINT name_constraint 
column_name_check (ONOFF in ( '1', '0' ));

I have an elegant solution to this problem. If you have multiple dataset, identifying which dataset was clicked gets tricky. The _datasetIndex always returns zero. But this should do the trick. It will get you the label and the dataset label as well. Please note ** this.getElementAtEvent** is without the s in getElement

options: {
   onClick: function (e, items) {
    var firstPoint = this.getElementAtEvent(e)[0];
    if (firstPoint) {
      var label = firstPoint._model.label;
      var val = firstPoint._model.datasetLabel;
      console.log(label+" - "+val);
    }
    
  }
}

I had the same problem ( I had to sort my equipments by their name ) and i solved like this:

<% @equipments.sort.each do |name, quantity| %>
...
<% end %>

@equipments is a hash that I build on my model and return on my controller. If you call .sort it will sort the hash based on it's key value.

Use sorted function, like this:

map(lambda x: sorted(x)[1],lst)

Assuming you are using VSTS run vsts-npm-auth -config .npmrc to generate new .npmrc file with the auth token

SELECT * FROM TABEL1 WHERE DATE= (SELECT MAX(CREATED_DATE) FROM TABEL1)

This question is not about a string split approach, but about how to get the nth element.

All answers here are doing some kind of string splitting using recursion, CTEs, multiple CHARINDEX, REVERSE and PATINDEX, inventing functions, call for CLR methods, number tables, CROSS APPLYs ... Most answers cover many lines of code.

But - if you really want nothing more than an approach to get the nth element - this can be done as real one-liner, no UDF, not even a sub-select... And as an extra benefit: type safe

Get part 2 delimited by a space:

DECLARE @input NVARCHAR(100)=N'part1 part2 part3';
SELECT CAST(N'<x>' + REPLACE(@input,N' ',N'</x><x>') + N'</x>' AS XML).value('/x[2]','nvarchar(max)')

Of course you can use variables for delimiter and position (use sql:column to retrieve the position directly from a query's value):

DECLARE @dlmt NVARCHAR(10)=N' ';
DECLARE @pos INT = 2;
SELECT CAST(N'<x>' + REPLACE(@input,@dlmt,N'</x><x>') + N'</x>' AS XML).value('/x[sql:variable("@pos")][1]','nvarchar(max)')

If your string might include forbidden characters (especially one among &><), you still can do it this way. Just use FOR XML PATH on your string first to replace all forbidden characters with the fitting escape sequence implicitly.

It's a very special case if - additionally - your delimiter is the semicolon. In this case I replace the delimiter first to '#DLMT#', and replace this to the XML tags finally:

SET @input=N'Some <, > and &;Other äöü@€;One more';
SET @dlmt=N';';
SELECT CAST(N'<x>' + REPLACE((SELECT REPLACE(@input,@dlmt,'#DLMT#') AS [*] FOR XML PATH('')),N'#DLMT#',N'</x><x>') + N'</x>' AS XML).value('/x[sql:variable("@pos")][1]','nvarchar(max)');

UPDATE for SQL-Server 2016+

Regretfully the developers forgot to return the part's index with STRING_SPLIT. But, using SQL-Server 2016+, there is JSON_VALUE and OPENJSON.

With JSON_VALUE we can pass in the position as the index' array.

For OPENJSON the documentation states clearly:

When OPENJSON parses a JSON array, the function returns the indexes of the elements in the JSON text as keys.

A string like 1,2,3 needs nothing more than brackets: [1,2,3].
A string of words like this is an example needs to be ["this","is","an","example"].
These are very easy string operations. Just try it out:

DECLARE @str VARCHAR(100)='Hello John Smith';
DECLARE @position INT = 2;

--We can build the json-path '$[1]' using CONCAT
SELECT JSON_VALUE('["' + REPLACE(@str,' ','","') + '"]',CONCAT('$[',@position-1,']'));

--See this for a position safe string-splitter (zero-based):

SELECT  JsonArray.[key] AS [Position]
       ,JsonArray.[value] AS [Part]
FROM OPENJSON('["' + REPLACE(@str,' ','","') + '"]') JsonArray

In this post I tested various approaches and found, that OPENJSON is really fast. Even much faster than the famous "delimitedSplit8k()" method...

UPDATE 2 - Get the values type-safe

We can use an array within an array simply by using doubled [[]]. This allows for a typed WITH-clause:

DECLARE  @SomeDelimitedString VARCHAR(100)='part1|1|20190920';

DECLARE @JsonArray NVARCHAR(MAX)=CONCAT('[["',REPLACE(@SomeDelimitedString,'|','","'),'"]]');

SELECT @SomeDelimitedString          AS TheOriginal
      ,@JsonArray                    AS TransformedToJSON
      ,ValuesFromTheArray.*
FROM OPENJSON(@JsonArray)
WITH(TheFirstFragment  VARCHAR(100) '$[0]'
    ,TheSecondFragment INT          '$[1]'
    ,TheThirdFragment  DATE         '$[2]') ValuesFromTheArray

Suppose you simply don't know the size of the data.frame in advance. It can well be a few rows, or a few millions. You need to have some sort of container, that grows dynamically. Taking in consideration my experience and all related answers in SO I come with 4 distinct solutions:

1. rbindlist to the data.frame

2. Use data.table's fast set operation and couple it with manually doubling the table when needed.

3. Use RSQLite and append to the table held in memory.

4. data.frame's own ability to grow and use custom environment (which has reference semantics) to store the data.frame so it will not be copied on return.

Here is a test of all the methods for both small and large number of appended rows. Each method has 3 functions associated with it:

• create(first_element) that returns the appropriate backing object with first_element put in.

• append(object, element) that appends the element to the end of the table (represented by object).

• access(object) gets the data.frame with all the inserted elements.

rbindlist to the data.frame

That is quite easy and straight-forward:

create.1<-function(elems)
{
  return(as.data.table(elems))
}

append.1<-function(dt, elems)
{ 
  return(rbindlist(list(dt,  elems),use.names = TRUE))
}

access.1<-function(dt)
{
  return(dt)
}

data.table::set + manually doubling the table when needed.

I will store the true length of the table in a rowcount attribute.

create.2<-function(elems)
{
  return(as.data.table(elems))
}

append.2<-function(dt, elems)
{
  n<-attr(dt, 'rowcount')
  if (is.null(n))
    n<-nrow(dt)
  if (n==nrow(dt))
  {
    tmp<-elems[1]
    tmp[[1]]<-rep(NA,n)
    dt<-rbindlist(list(dt, tmp), fill=TRUE, use.names=TRUE)
    setattr(dt,'rowcount', n)
  }
  pos<-as.integer(match(names(elems), colnames(dt)))
  for (j in seq_along(pos))
  {
    set(dt, i=as.integer(n+1), pos[[j]], elems[[j]])
  }
  setattr(dt,'rowcount',n+1)
  return(dt)
}

access.2<-function(elems)
{
  n<-attr(elems, 'rowcount')
  return(as.data.table(elems[1:n,]))
}

SQL should be optimized for fast record insertion, so I initially had high hopes for RSQLite solution

This is basically copy&paste of Karsten W. answer on similar thread.

create.3<-function(elems)
{
  con <- RSQLite::dbConnect(RSQLite::SQLite(), ":memory:")
  RSQLite::dbWriteTable(con, 't', as.data.frame(elems))
  return(con)
}

append.3<-function(con, elems)
{ 
  RSQLite::dbWriteTable(con, 't', as.data.frame(elems), append=TRUE)
  return(con)
}

access.3<-function(con)
{
  return(RSQLite::dbReadTable(con, "t", row.names=NULL))
}

data.frame's own row-appending + custom environment.

create.4<-function(elems)
{
  env<-new.env()
  env$dt<-as.data.frame(elems)
  return(env)
}

append.4<-function(env, elems)
{ 
  env$dt[nrow(env$dt)+1,]<-elems
  return(env)
}

access.4<-function(env)
{
  return(env$dt)
}

The test suite:

For convenience I will use one test function to cover them all with indirect calling. (I checked: using do.call instead of calling the functions directly doesn't makes the code run measurable longer).

test<-function(id, n=1000)
{
  n<-n-1
  el<-list(a=1,b=2,c=3,d=4)
  o<-do.call(paste0('create.',id),list(el))
  s<-paste0('append.',id)
  for (i in 1:n)
  {
    o<-do.call(s,list(o,el))
  }
  return(do.call(paste0('access.', id), list(o)))
}

Let's see the performance for n=10 insertions.

I also added a 'placebo' functions (with suffix 0) that don't perform anything - just to measure the overhead of the test setup.

r<-microbenchmark(test(0,n=10), test(1,n=10),test(2,n=10),test(3,n=10), test(4,n=10))
autoplot(r)

For 1E5 rows (measurements done on Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz):

nr  function      time
4   data.frame    228.251 
3   sqlite        133.716
2   data.table      3.059
1   rbindlist     169.998 
0   placebo         0.202

It looks like the SQLite-based sulution, although regains some speed on large data, is nowhere near data.table + manual exponential growth. The difference is almost two orders of magnitude!

Summary

If you know that you will append rather small number of rows (n<=100), go ahead and use the simplest possible solution: just assign the rows to the data.frame using bracket notation and ignore the fact that the data.frame is not pre-populated.

For everything else use data.table::set and grow the data.table exponentially (e.g. using my code).

Xamarin C#

Doing bitwise OR doesn't work for some reason

button.SetImage(new UIImage("ImageNormal"), UIControlState.Normal);
button.SetImage(new UIImage("ImagePressed"), UIControlState.Selected | UIControlState.Highlighted | UIControlState.Focused);

The following works

button.SetImage(new UIImage("ImageNormal"), UIControlState.Normal);
button.SetImage(new UIImage("ImagePressed"), UIControlState.Selected);
button.SetImage(new UIImage("ImagePressed"), UIControlState.Highlighted);
button.SetImage(new UIImage("ImagePressed"), UIControlState.Focused);

$animals = array('--Select Animal--', 'Cat', 'Dog', 'Cow');
$selected_key = $_POST['animal'];
$selected_val = $animals[$_POST['animal']];

Use your $animals list to generate your dropdown list; you now can get the key & the value of that key.

An Ad-Hoc Query is a query that cannot be determined prior to the moment the query is issued. It is created in order to get information when need arises and it consists of dynamically constructed SQL which is usually constructed by desktop-resident query tools.

Check: http://www.learn.geekinterview.com/data-warehouse/dw-basics/what-is-an-ad-hoc-query.html

I have solved this problem with changing encoding in read.table argument from fileEncoding = "UTF-16" to fileEncoding = "UTF-8".

I'm not sure why you'd want to validate an optional email address, but I'd suggest you use

^$|^[^@\s]+@[^@\s]+$

meaning

^$        empty string
|         or
^         beginning of string
[^@\s]+   any character but @ or whitespace
@         
[^@\s]+
$         end of string

You won't stop fake emails anyway, and this way you won't stop valid addresses.

It's quite easy:

• Create a new Bitmap object with the cropped size.
• Use Graphics.FromImage to create a Graphics object for the new bitmap.
• Use the DrawImage method to draw the image onto the bitmap with a negative X and Y coordinate.

I tried this tool and it gave me good results.

https://github.com/major/MySQLTuner-perl

This is what I do for those situations:

I don't start the html element with class 'hide', but I put style="display: none".

This is because bootstrap jquery modifies the style attribute and not the classes to hide/unhide.

Example:

<button type="button" id="btn_cancel" class="btn default" style="display: none">Cancel</button>

or

<button type="button" id="btn_cancel" class="btn default display-hide">Cancel</button>

Later on, you can run all the following that will work:

$('#btn_cancel').toggle() // toggle between hide/unhide
$('#btn_cancel').hide()
$('#btn_cancel').show()

You can also uso the class of Twitter Bootstrap 'display-hide', which also works with the jQuery IU .toggle() method.

In simple words:

var x = (day == "yes") ? "Good Day!" : (day == "no") ? "Good Night!" : "";

You can access the version through a URL, the web GUI, and the ReST API.

Via a URL

An HTML page displaying the version can be displayed in a browser at https://your-gitlab-url/help. The version is displayed only if you are signed in.

Via a menu in the web GUI

If you do not care to type this URL, you can also access the same HTML page from a menu in the GitLab web GUI:

In GitLab 11 and later

1. Log in to GitLab
2. Click on the drop down menu in the upper right. Select Help.
3. The GitLab version appears at the top of the page

In earlier versions, like GitLab 9

1. Log in to GitLab
2. Click on the drop down menu in the upper left. Select Help.
3. And then the version appears at the top of the page

Via the ReST API

Log in as any user, select the user icon in the upper right of the screen. Select Settings > Access Tokens. Create a personal access token and copy it to your clipboard.

In a Linux shell, use curl to access the GitLab version:

curl --header "PRIVATE-TOKEN: personal-access-token" your-gitlab-url/api/v4/version

This is my general way:

View namebar = view.findViewById(R.id.namebar);
ViewGroup parent = (ViewGroup) namebar.getParent();
if (parent != null) {
    parent.removeView(namebar);
}

Use MarkDownLog library (you can find it on NuGet)

you can simply use the extension ToMarkdownTable() to any collection, it does all the formatting for you.

 Console.WriteLine(
    yourCollection.Select(s => new
                    {
                        column1 = s.col1,
                        column2 = s.col2,
                        column3 = s.col3,
                        StaticColumn = "X"
                    })
                    .ToMarkdownTable());

Output looks something like this:

Column1  | Column2   | Column3   | StaticColumn   
--------:| ---------:| ---------:| --------------
         |           |           | X              

Using the "Developer Command Prompt for Visual Studio 20XX" instead of "cmd" will set the path for msbuild automatically without having to add it to your environment variables.

Your best bet would be to anticipate prefixes, so:

"(|(displayName=SEARCHKEY*)(displayName=ITSM - SEARCHKEY*)(displayName=alt prefix - SEARCHKEY*))"

Clunky, but I'm doing a similar thing within my organization.

Try PowerShell Type like:

$cn = new-object system.data.SqlClient.SQLConnection("Data Source=server1;Initial Catalog=db1;User ID=user1;Password=password1");
$cmd = new-object system.data.sqlclient.sqlcommand("exec Proc1", $cn);
$cn.Open();
$cmd.CommandTimeout = 0
$cmd.ExecuteNonQuery()
$cn.Close();

Just to continue gongzhitaao's solid answer - this handles AM/PM

 Date.prototype.format = function (format) //author: meizz
{
    var hours = this.getHours();
    var ttime = "AM";
    if(format.indexOf("t") > -1 && hours > 12)
    {
        hours = hours - 12;
        ttime = "PM";
     }

var o = {
    "M+": this.getMonth() + 1, //month
    "d+": this.getDate(),    //day
    "h+": hours,   //hour
    "m+": this.getMinutes(), //minute
    "s+": this.getSeconds(), //second
    "q+": Math.floor((this.getMonth() + 3) / 3),  //quarter
    "S": this.getMilliseconds(), //millisecond,
    "t+": ttime
}

if (/(y+)/.test(format)) format = format.replace(RegExp.$1,
  (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o) if (new RegExp("(" + k + ")").test(format))
    format = format.replace(RegExp.$1,
      RegExp.$1.length == 1 ? o[k] :
        ("00" + o[k]).substr(("" + o[k]).length));
return format;
}

Put it this way

where ("R"."TIME_STAMP">=TO_DATE ('03-02-2013 00:00:00', 'DD-MM-YYYY HH24:MI:SS')
   AND "R"."TIME_STAMP"<=TO_DATE ('09-02-2013 23:59:59', 'DD-MM-YYYY HH24:MI:SS')) 

Where R is table name.
TIME_STAMP is FieldName in Table R.

Just one thing to add to this (although I do think you have already had your question answered by others). In the interests of extensibility (since we all know it will happen at some point) you may want to check out the Composite Pattern This is ideal for working with "Tree-Like Structures"..

Like I said, I know you are only expecting one sub-level, but this could really be useful for you if you later need to extend ^_^

you could use display: inline-block;

hope it is useful.

A much more secure way to check if property exists on the object is to use empty object or object prototype to call hasOwnProperty()

var foo = {
  hasOwnProperty: function() {
    return false;
  },
  bar: 'Here be dragons'
};

foo.hasOwnProperty('bar'); // always returns false

// Use another Object's hasOwnProperty and call it with 'this' set to foo
({}).hasOwnProperty.call(foo, 'bar'); // true

// It's also possible to use the hasOwnProperty property from the Object
// prototype for this purpose
Object.prototype.hasOwnProperty.call(foo, 'bar'); // true

Reference from MDN Web Docs - Object.prototype.hasOwnProperty()

We can solve this by using modulus operator (%)

26 % 7 = 5;

but 26 / 7 = 3 because it will give quotient but % operator will give remainder.

Provide the source image (img) size as the first rectangle:

ctx.drawImage(img, 0, 0, img.width,    img.height,     // source rectangle
                   0, 0, canvas.width, canvas.height); // destination rectangle

The second rectangle will be the destination size (what source rectangle will be scaled to).

Update 2016/6: For aspect ratio and positioning (ala CSS' "cover" method), check out:
Simulation background-size: cover in canvas

Inorder to find an app's name (application label), you need to do the following:
(as shown in other answers)

1. Find the APK path of the app whose name you want to find.
2. Using aapt command, find the app label.

But devices don't ship with the aapt binary out-of-the-box.
So you will need to install it first. You can download it from here:
https://github.com/Calsign/APDE/tree/master/APDE/src/main/assets/aapt-binaries

Check this guide for complete steps:
How to find an app name using package name through ADB Android?
(Disclaimer: I am the author of that blog post)

I also had to do this myself. I did it via the --parents argument for cp:

find SOURCEPATH -name filename*.txt -exec cp --parents {} DESTPATH \;

In VBA (and VB.NET) the line terminator (carriage return) is used to signal the end of a statement. To break long statements into several lines, you need to

Use the line-continuation character, which is an underscore (_), at the point at which you want the line to break. The underscore must be immediately preceded by a space and immediately followed by a line terminator (carriage return).

(From How to: Break and Combine Statements in Code)

In other words: Whenever the interpreter encounters the sequence <space>_<line terminator>, it is ignored and parsing continues on the next line. Note, that even when ignored, the line continuation still acts as a token separator, so it cannot be used in the middle of a variable name, for example. You also cannot continue a comment by using a line-continuation character.

To break the statement in your question into several lines you could do the following:

U_matrix(i, j, n + 1) = _
     k * b_xyt(xi, yi, tn) / (4 * hx * hy) * U_matrix(i + 1, j + 1, n) + _
     (k * (a_xyt(xi, yi, tn) / hx ^ 2 + d_xyt(xi, yi, tn) / (2 * hx)))

(Leading whitespaces are ignored.)

For anybody reading this in 2019, after React 16.8 was released, take a look at the React Hooks. It really simplifies handling states in components. The docs are very well written with an example of exactly what you need.

You can try "SelectedIndexChanged", it will trigger the event even if the same item is selected.

You could also try to include md5-hash-sums or similar do determine whether there are any differences at all. Then, only compare files which have different hashes...

You can use following formulas.

For Excel 2007 or later:

=IFERROR(VLOOKUP(D3,List!A:C,3,FALSE),"No Match")

For Excel 2003:

=IF(ISERROR(MATCH(D3,List!A:A, 0)), "No Match", VLOOKUP(D3,List!A:C,3,FALSE))

Note, that

• I'm using List!A:C in VLOOKUP and returns value from column ? 3
• I'm using 4th argument for VLOOKUP equals to FALSE, in that case VLOOKUP will only find an exact match, and the values in the first column of List!A:C do not need to be sorted (opposite to case when you're using TRUE).

You can use a pseudo element to create the overlay.

.testclass {
  background-image: url("../img/img.jpg");
  position: relative;
}
.testclass:before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 0; bottom: 0;
  background: rgba(0,0,0,.5);
}

Something we've starting doing at work is the ActiveSupport Ordered Hash

Which allows you to define your configuration cleanly inside the environment files e.g.

config.service = ActiveSupport::OrderedOptions.new
config.service.api_key = ENV['SERVICE_API_KEY']
config.service.shared_secret = ENV['SERVICE_SHARED_SECRET']

Just to add to answers by Mr. Dimitrov and Jason, if you are using a specific profile and you have put your region setting there,then for all the requests you need to add

"--profile" option.

For example:

Lets say you have AWS Playground profile, and the ~/.aws/config has [profile playground] which further has something like,

[profile playground] region=us-east-1

then, use something like below

aws ecs list-container-instances --cluster default --profile playground

just edit the function cell in the fpdf.php file, look for the line that looks like this

function cell ($w, $h = 0, $txt = '', $border = 0, $ln = 0, $align = '', $fill = false, $link = '')
{ 

after finding the line

write after the {,

$txt = utf8_decode($txt);

save the file and ready, the accents and the utf8 encoding will be working :)

I had a problem changing the datadir in my.ini for Windows 7.

I wanted the data to be stored on a different drive and I was moving this data from another PC by copying the whole folder. I changed datadir to desired drive and saved the my.ini file with no problems.

But mysql would not start. I opened my.ini file again and it appeared to have been changed. Then, I noticed the date on the my.ini had not changed. So I had to change the security privileges to give me write access to it.

This time when I saved it, the date changed and mysql started up access to all the correct data.

Use -d (full list of file tests)

if (-d "cgi-bin") {
    # directory called cgi-bin exists
}
elsif (-e "cgi-bin") {
    # cgi-bin exists but is not a directory
}
else {
    # nothing called cgi-bin exists
}

As a note, -e doesn't distinguish between files and directories. To check if something exists and is a plain file, use -f.

You may use CString, CStringA, CStringW to do automatic conversions and convert between these types. Further, you may also use CStrBuf, CStrBufA, CStrBufW to get RAII pattern modifiable strings

I use an immediately invoked lambda for these scenarios:

const config = (() => {
  try {
    return JSON.parse(fs.readFileSync('config.json'));
  } catch (error) {
    return {};
  }
})();

async version:

const config = await (async () => {
  try {
    return JSON.parse(await fs.readFileAsync('config.json'));
  } catch (error) {
    return {};
  }
})();

You have to add the targeted map :

var markers = [
            {
            "title": 'This is title',
            "lat": '-37.801578',
            "lng": '145.060508',
            "map":  map,
            "icon": 'http://google-maps-icons.googlecode.com/files/sailboat-tourism.png',
            "description": 'Vikash Rathee. <strong> This is test Description</strong> <br/><a href="http://www.pricingindia.in/pincode.aspx">Pin Code by 

City</a>'
            }
];

It's true, they are both - or more precisely, they are "inline block" elements. This means that they flow inline like text, but also have a width and height like block elements.

Similar questions are here

detect line breaks in a text area input

detect line break in textarea

You can try this:

var submit = document.getElementById('submit');_x000D_
_x000D_
submit.addEventListener('click', function(){_x000D_
var textContent = document.querySelector('textarea').value;_x000D_
  _x000D_
document.getElementById('output').innerHTML = textContent.replace(/\n/g, '<br/>');_x000D_
  _x000D_
_x000D_
});

<textarea cols=30 rows=10 >This is some text_x000D_
this is another text_x000D_
_x000D_
Another text again and again</textarea>_x000D_
<input type='submit' id='submit'>_x000D_
_x000D_
_x000D_
<p id='output'></p>

document.querySelector('textarea').value; will get the text content of the textarea and textContent.replace(/\n/g, '<br/>') will find all the newline character in the source code /\n/g in the content and replace it with the html line-break <br/>.

Another option is to use the html <pre> tag. See the demo below

var submit = document.getElementById('submit');_x000D_
_x000D_
submit.addEventListener('click', function(){_x000D_
_x000D_
  var content = '<pre>';_x000D_
  _x000D_
  var textContent = document.querySelector('textarea').value;_x000D_
  _x000D_
  content += textContent;_x000D_
  _x000D_
  content += '</pre>';_x000D_
_x000D_
  document.getElementById('output').innerHTML = content;_x000D_
_x000D_
});

<textarea cols=30 rows=10>This is some text_x000D_
this is another text_x000D_
_x000D_
Another text again and again </textarea>_x000D_
<input type='submit' id='submit'>_x000D_
_x000D_
<div id='output'> </div>

As of EF 5.0, you need to include the System.ComponentModel.DataAnnotations.Schema namespace.

I was getting the same error when I tried to do :

cordova build ios

except mine said ** ARCHIVE FAILED ** rather than ** BUILD FAILED **.

I fixed it by opening the projectName.xcodeproj file in Xcode and then adjusting these 2 settings :

1. In Targets > General > Signing ensure you have selected a Team

2. In Targets > Build Settings > (search for "bitcode") set Enable Bitcode to "Yes"

Then I quit out of Xcode and reran cordova build ios and it worked.

Array Sorting without using built in functions in java ......just make new File unsing this name -> (ArraySorting.java) ..... Run the Project and Enjoy it !!!!!

    import java.io.*;
    import java.util.Arrays;
    import java.util.Scanner;
    public class ArraySorting 
    {
    public static void main(String args[])
    {
      int temp=0;   
      Scanner user_input=new Scanner(System.in);
       System.out.println("enter Size of Array...");
    int Size=user_input.nextInt();

    int[] a=new int[Size];
    System.out.println("Enter element Of an Array...");
    for(int j=0;j<Size;j++)
    {
        a[j]=user_input.nextInt();
    }     
    for(int index=0;index<a.length;index++)
    {
        for(int j=index+1;j<a.length;j++)
        {
             if(a[index] > a[j] ) 
             {
                 temp = a[index];
                 a[index] = a[j];
                 a[j] = temp;
             }
        }
    }
    System.out.print("Output is:- ");
    for(int i=0;i<a.length;i++)
    {
        System.out.println(a[i]);
    }

}
}

matrix = [[1,2,3],
          [1,2,3],
          [1,2,3],
          [1,2,3],
          [1,2,3],
          [1,2,3],
          [1,2,3]]
    
rows = len(matrix)
cols = len(matrix[0])

transposed = []
while len(transposed) < cols:
    transposed.append([])
    while len(transposed[-1]) < rows:
        transposed[-1].append(0)

for i in range(rows):
    for j in range(cols):
        transposed[j][i] = matrix[i][j]

for i in transposed:
    print(i)

If this is what you want ...simply add button inside the Fragment.

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.LocationChooser">


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right|top"
        android:text="Demo Button" 
        android:padding="10dp"
        android:layout_marginTop="20dp"
        android:paddingRight="10dp"/>

</fragment>

if you want to pass POST variables, you have to use a HTML Form:

<form action="http://localhost:8080/login" method="POST" target="_blank">
    <input type="text" name="cid" />
    <input type="password" name="pwd" />
    <input type="submit" value="open" />
</form>

or:

if you want to pass GET variables in an URL, write them without single-quotes:

http://yourdomain.com/login?cid=username&pwd=password

here's how to create the string above with javascrpt variables:

myu = document.getElementById('cid').value;
myp = document.getElementById('pwd').value;
window.open("http://localhost:8080/login?cid="+ myu +"&pwd="+ myp ,"MyTargetWindowName");

in the document with that url, you have to read the GET parameters. if it's in php, use:

$_GET['username']

be aware: to transmit passwords that way is a big security leak!

To run an executable in mac

1). Move to the path of the file:

cd/PATH_OF_THE_FILE

2). Run the following command to set the file's executable bit using the chmod command:

chmod +x ./NAME_OF_THE_FILE

3). Run the following command to execute the file:

./NAME_OF_THE_FILE

Once you have run these commands, going ahead you just have to run command 3, while in the files path.

Setting the User-Agent from everyone's favorite Dive Into Python.

The short story: You can use Request.add_header to do this.

You can also pass the headers as a dictionary when creating the Request itself, as the docs note:

headers should be a dictionary, and will be treated as if add_header() was called with each key and value as arguments. This is often used to “spoof” the User-Agent header, which is used by a browser to identify itself – some HTTP servers only allow requests coming from common browsers as opposed to scripts. For example, Mozilla Firefox may identify itself as "Mozilla/5.0 (X11; U; Linux i686) Gecko/20071127 Firefox/2.0.0.11", while urllib2‘s default user agent string is "Python-urllib/2.6" (on Python 2.6).

If you type this text in your bat file:

start /min blah.exe

It will immediately minimize as soon as it opens the program. You will only see a brief flash of it and it will disappear.

Try the following code. It will support the latest API:

ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
                        if (clipboard.hasPrimaryClip()) {
                            android.content.ClipDescription description = clipboard.getPrimaryClipDescription();
                            android.content.ClipData data = clipboard.getPrimaryClip();
                            if (data != null && description != null && description.hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN))
                            {
                                String url= (String) clipboard.getText();
                                searchText.setText(url);
                                System.out.println("data="+data+"description="+description+"url="+url);
                            }}

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

npm start --mode production
npm start --mode development

With process.env.NODE_ENV = 'production'

I usually do not use any href and change the aspect with css, making them seems link. Thus you do not have to worry about link effect at all, except for the event handler of your application

a {
  text-recoration: underline;
  cursor: pointer;
}

Apache Spark provide three type of APIs

1. RDD
2. DataFrame
3. Dataset

Here is the APIs comparison between RDD, Dataframe and Dataset.

RDD

The main abstraction Spark provides is a resilient distributed dataset (RDD), which is a collection of elements partitioned across the nodes of the cluster that can be operated on in parallel.

RDD Features:-

• Distributed collection:
  RDD uses MapReduce operations which is widely adopted for processing and generating large datasets with a parallel, distributed algorithm on a cluster. It allows users to write parallel computations, using a set of high-level operators, without having to worry about work distribution and fault tolerance.

• Immutable: RDDs composed of a collection of records which are partitioned. A partition is a basic unit of parallelism in an RDD, and each partition is one logical division of data which is immutable and created through some transformations on existing partitions.Immutability helps to achieve consistency in computations.

• Fault tolerant: In a case of we lose some partition of RDD , we can replay the transformation on that partition in lineage to achieve the same computation, rather than doing data replication across multiple nodes.This characteristic is the biggest benefit of RDD because it saves a lot of efforts in data management and replication and thus achieves faster computations.

• Lazy evaluations: All transformations in Spark are lazy, in that they do not compute their results right away. Instead, they just remember the transformations applied to some base dataset . The transformations are only computed when an action requires a result to be returned to the driver program.

• Functional transformations: RDDs support two types of operations: transformations, which create a new dataset from an existing one, and actions, which return a value to the driver program after running a computation on the dataset.

• Data processing formats:
  It can easily and efficiently process data which is structured as well as unstructured data.

• Programming Languages supported:
  RDD API is available in Java, Scala, Python and R.

RDD Limitations:-

• No inbuilt optimization engine: When working with structured data, RDDs cannot take advantages of Spark’s advanced optimizers including catalyst optimizer and Tungsten execution engine. Developers need to optimize each RDD based on its attributes.

• Handling structured data: Unlike Dataframe and datasets, RDDs don’t infer the schema of the ingested data and requires the user to specify it.

Dataframes

Spark introduced Dataframes in Spark 1.3 release. Dataframe overcomes the key challenges that RDDs had.

A DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database or a R/Python Dataframe. Along with Dataframe, Spark also introduced catalyst optimizer, which leverages advanced programming features to build an extensible query optimizer.

Dataframe Features:-

• Distributed collection of Row Object: A DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database, but with richer optimizations under the hood.

• Data Processing: Processing structured and unstructured data formats (Avro, CSV, elastic search, and Cassandra) and storage systems (HDFS, HIVE tables, MySQL, etc). It can read and write from all these various datasources.

• Optimization using catalyst optimizer: It powers both SQL queries and the DataFrame API. Dataframe use catalyst tree transformation framework in four phases,

   1.Analyzing a logical plan to resolve references
   2.Logical plan optimization
   3.Physical planning
   4.Code generation to compile parts of the query to Java bytecode.
  

• Hive Compatibility: Using Spark SQL, you can run unmodified Hive queries on your existing Hive warehouses. It reuses Hive frontend and MetaStore and gives you full compatibility with existing Hive data, queries, and UDFs.

• Tungsten: Tungsten provides a physical execution backend whichexplicitly manages memory and dynamically generates bytecode for expression evaluation.

• Programming Languages supported:
  Dataframe API is available in Java, Scala, Python, and R.

Dataframe Limitations:-

• Compile-time type safety: As discussed, Dataframe API does not support compile time safety which limits you from manipulating data when the structure is not know. The following example works during compile time. However, you will get a Runtime exception when executing this code.

Example:

case class Person(name : String , age : Int) 
val dataframe = sqlContext.read.json("people.json") 
dataframe.filter("salary > 10000").show 
=> throws Exception : cannot resolve 'salary' given input age , name

This is challenging specially when you are working with several transformation and aggregation steps.

• Cannot operate on domain Object (lost domain object): Once you have transformed a domain object into dataframe, you cannot regenerate it from it. In the following example, once we have create personDF from personRDD, we won’t be recover the original RDD of Person class (RDD[Person]).

Example:

case class Person(name : String , age : Int)
val personRDD = sc.makeRDD(Seq(Person("A",10),Person("B",20)))
val personDF = sqlContext.createDataframe(personRDD)
personDF.rdd // returns RDD[Row] , does not returns RDD[Person]

Datasets API

Dataset API is an extension to DataFrames that provides a type-safe, object-oriented programming interface. It is a strongly-typed, immutable collection of objects that are mapped to a relational schema.

At the core of the Dataset, API is a new concept called an encoder, which is responsible for converting between JVM objects and tabular representation. The tabular representation is stored using Spark internal Tungsten binary format, allowing for operations on serialized data and improved memory utilization. Spark 1.6 comes with support for automatically generating encoders for a wide variety of types, including primitive types (e.g. String, Integer, Long), Scala case classes, and Java Beans.

Dataset Features:-

• Provides best of both RDD and Dataframe: RDD(functional programming, type safe), DataFrame (relational model, Query optimazation , Tungsten execution, sorting and shuffling)

• Encoders: With the use of Encoders, it is easy to convert any JVM object into a Dataset, allowing users to work with both structured and unstructured data unlike Dataframe.

• Programming Languages supported: Datasets API is currently only available in Scala and Java. Python and R are currently not supported in version 1.6. Python support is slated for version 2.0.

• Type Safety: Datasets API provides compile time safety which was not available in Dataframes. In the example below, we can see how Dataset can operate on domain objects with compile lambda functions.

Example:

case class Person(name : String , age : Int)
val personRDD = sc.makeRDD(Seq(Person("A",10),Person("B",20)))
val personDF = sqlContext.createDataframe(personRDD)
val ds:Dataset[Person] = personDF.as[Person]
ds.filter(p => p.age > 25)
ds.filter(p => p.salary > 25)
 // error : value salary is not a member of person
ds.rdd // returns RDD[Person]

• Interoperable: Datasets allows you to easily convert your existing RDDs and Dataframes into datasets without boilerplate code.

Datasets API Limitation:-

• Requires type casting to String: Querying the data from datasets currently requires us to specify the fields in the class as a string. Once we have queried the data, we are forced to cast column to the required data type. On the other hand, if we use map operation on Datasets, it will not use Catalyst optimizer.

Example:

ds.select(col("name").as[String], $"age".as[Int]).collect()

No support for Python and R: As of release 1.6, Datasets only support Scala and Java. Python support will be introduced in Spark 2.0.

The Datasets API brings in several advantages over the existing RDD and Dataframe API with better type safety and functional programming.With the challenge of type casting requirements in the API, you would still not the required type safety and will make your code brittle.

you can read a text from a text file in to string as follows also

string str = "";
StreamReader sr = new StreamReader(Application.StartupPath + "\\Sample.txt");
while(sr.Peek() != -1)
{
  str = str + sr.ReadLine();
}

I ran into this problem as well, and figured out that the problem is in the browser. When you refresh the browser is re-populating the form with the same values as before, ignoring the checked field. If you view source, you'll see the checked value is correct. Or put your cursor in your browser's URL field and hit enter. That will re-load the form from scratch.

I was able to call stored procedure in a view (SQL Server 2005).

CREATE FUNCTION [dbo].[dimMeasure] 
   RETURNS  TABLE  AS

    (
     SELECT * FROM OPENROWSET('SQLNCLI', 'Server=localhost; Trusted_Connection=yes;', 'exec ceaw.dbo.sp_dimMeasure2')
    )
RETURN
GO

Inside stored procedure we need to set:

set nocount on
SET FMTONLY OFF

CREATE VIEW [dbo].[dimMeasure]
AS

SELECT * FROM OPENROWSET('SQLNCLI', 'Server=localhost;Trusted_Connection=yes;', 'exec ceaw.dbo.sp_dimMeasure2')

GO

In older versions of jquery you'll have to do it the "javascript way" using settimeout

setTimeout( function(){$('div').hide();} , 4000);

or

setTimeout( "$('div').hide();", 4000);

Recently with jquery 1.4 this solution has been added:

$("div").delay(4000).hide();

Of course replace "div" by the correct element using a valid jquery selector and call the function when the document is ready.

return "default" if x is None else x

try the above.

You can also go to the bin folder inside your gradle installation folder and correct the JAVA_HOME parameter in gradle.bat file. In my case, my JAVA_HOME was set to c:\Program files\java\bin The JAVA_HOME in gradle.bat was set to %JAVA_HOME%\bin\java.exe.

I corrected the JAVA_HOME in gradle.bat and it worked.

Thank you!!!

web2py has comet_messaging.py, which uses Tornado for websockets look at an example here: http://vimeo.com/18399381 and here vimeo . com / 18232653

ssh -q -o "BatchMode=yes" -i /home/sicmapp/.ssh/id_rsa <ID>@<Servername>.<domain> "echo 2>&1" && echo $host SSH_OK || echo $host SSH_NOK

When i faced such a situation, i have done something like this:

Logger = {
    info: function (message, tag) {
        var fullMessage = '';        
        fullMessage = this._getFormatedMessage(message, tag);
        if (loggerEnabled) {
            console.log(fullMessage);
        }
    },
    warning: function (message, tag) {
        var fullMessage = '';
        fullMessage = this._getFormatedMessage(message, tag);
        if (loggerEnabled) {
            console.warn(fullMessage);`enter code here`
        }
    },
    _getFormatedMessage: function () {}
};

so now i can call the info method as Logger.info("my Msg", "Tag");

I wanted to get a file's modification date in YYYYMMDDHHMMSS format. Here is how I did it:

date -d @$( stat -c %Y myfile.css ) +%Y%m%d%H%M%S

Explanation. It's the combination of these commands:

stat -c %Y myfile.css # Get the modification date as a timestamp
date -d @1503989421 +%Y%m%d%H%M%S # Convert the date (from timestamp)

ServiceStack.Text has a T.Dump() extension method that does exactly this, recursively dumps all properties of any type in a nice readable format.

Example usage:

var model = new TestModel();
Console.WriteLine(model.Dump());

and output:

{
    Int: 1,
    String: One,
    DateTime: 2010-04-11,
    Guid: c050437f6fcd46be9b2d0806a0860b3e,
    EmptyIntList: [],
    IntList:
    [
        1,
        2,
        3
    ],
    StringList:
    [
        one,
        two,
        three
    ],
    StringIntMap:
    {
        a: 1,
        b: 2,
        c: 3
    }
}

Incomplete information: we need to know which line is throwing the NullReferenceException in order to tell precisely where the problem lies.

Obviously, you are using an uninitialized variable (i.e., a variable that has been declared but not initialized) and try to access one of its non-static method/property/whatever.

Solution: - Find the line that is throwing the exception from the exception details - In this line, check that every variable you are using has been correctly initialized (i.e., it is not null)

Good luck.

Voila!

div {_x000D_
  background-color: red;_x000D_
  color: white;_x000D_
  font-weight: bold;_x000D_
  width: 48px;_x000D_
  height: 48px;  _x000D_
  transform: rotate(360deg);_x000D_
  transition: transform 0.5s;_x000D_
}_x000D_
_x000D_
div:active {_x000D_
  transform: rotate(0deg);_x000D_
  transition:  0s;_x000D_
}

<div></div>

You can use the files from debug folder,however if you look at app debug informations with some inspection software,you can clearly see "Symbols File Name" which can reveals not wanted informations in path to the original exe file.

If you are using JavaScript to render then use escape_JavaScript("<%=render partial: partial_name, locals=>{@newval=>@oldval}%>");

try this:

<div ng-if="$scope.length == 0" ? true : false></div>

and show or hide

<div ng-show="$scope.length == 0"></div>

else it will be hide

-----------------or--------------------------

if you are using $ctrl than code will be like this:

try this:

<div ng-if="$ctrl.length == 0" ? true : false></div>

and show or hide

<div ng-show="$ctrl.length == 0"></div>

else it will be hide

To allow single quotes within doubule quoted string for the purpose of json, you double the single quote. {"X": "What's the question"} ==> {"X": "What''s the question"}

https://codereview.stackexchange.com/questions/69266/json-conversion-to-single-quotes

The \' sequence is invalid.

There's a lot of outdated and incomplete information here. For iOS 6 and newer only:

1. loadView^[a]
2. viewDidLoad^[a]
3. viewWillAppear
4. viewWillLayoutSubviews is the first time bounds are finalized
5. viewDidLayoutSubviews
6. viewDidAppear
7. * viewWillLayoutSubviews^[b]
8. * viewDidLayoutSubviews^[b]

_Footnotes:

_{(a) - If you manually nil out your view during didReceiveMemoryWarning, loadView and viewDidLoad will be called again. That is, by default loadView and viewDidLoad only gets called once per view controller instance.}

_{(b) May be called an additional 0 or more times.}

Css workaround for forcing columns to display correctly with a 'block' tbody

This solution still requires the th widths to be calculated and set by jQuery

table.scroll tbody,
table.scroll thead { display: block; }

table.scroll tbody {
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 300px;
}

table.scroll tr {
    display: flex;
}

table.scroll tr > td {
    flex-grow: 1;
    flex-basis: 0;
}

And the Jquery / Javascript

var $table = $('#the_table_element'),
    $bodyCells = $table.find('tbody tr:first').children(),
    colWidth;

$table.addClass('scroll');

// Adjust the width of thead cells when window resizes
$(window).resize(function () {

    // Get the tbody columns width array
    colWidth = $bodyCells.map(function () {
        return $(this).width();
    }).get();

    // Set the width of thead columns
    $table.find('thead tr').children().each(function (i, v) {
        $(v).width(colWidth[i]);
    });

}).resize(); // Trigger resize handler

Can be done in two lines :)

Mat to array

uchar * arr = image.isContinuous()? image.data: image.clone().data;
uint length = image.total()*image.channels();

Mat to vector

cv::Mat flat = image.reshape(1, image.total()*image.channels());
std::vector<uchar> vec = image.isContinuous()? flat : flat.clone();

Both work for any general cv::Mat.

Explanation with a working example

    cv::Mat image;
    image = cv::imread(argv[1], cv::IMREAD_UNCHANGED);   // Read the file
    cv::namedWindow("cvmat", cv::WINDOW_AUTOSIZE );// Create a window for display.
    cv::imshow("cvmat", image );                   // Show our image inside it.

    // flatten the mat.
    uint totalElements = image.total()*image.channels(); // Note: image.total() == rows*cols.
    cv::Mat flat = image.reshape(1, totalElements); // 1xN mat of 1 channel, O(1) operation
    if(!image.isContinuous()) {
        flat = flat.clone(); // O(N),
    }
    // flat.data is your array pointer
    auto * ptr = flat.data; // usually, its uchar*
    // You have your array, its length is flat.total() [rows=1, cols=totalElements]
    // Converting to vector
    std::vector<uchar> vec(flat.data, flat.data + flat.total());
    // Testing by reconstruction of cvMat
    cv::Mat restored = cv::Mat(image.rows, image.cols, image.type(), ptr); // OR vec.data() instead of ptr
    cv::namedWindow("reconstructed", cv::WINDOW_AUTOSIZE);
    cv::imshow("reconstructed", restored);

    cv::waitKey(0);     

Extended explanation:

Mat is stored as a contiguous block of memory, if created using one of its constructors or when copied to another Mat using clone() or similar methods. To convert to an array or vector we need the address of its first block and array/vector length.

Pointer to internal memory block

Mat::data is a public uchar pointer to its memory.
But this memory may not be contiguous. As explained in other answers, we can check if mat.data is pointing to contiguous memory or not using mat.isContinous(). Unless you need extreme efficiency, you can obtain a continuous version of the mat using mat.clone() in O(N) time. (N = number of elements from all channels). However, when dealing images read by cv::imread() we will rarely ever encounter a non-continous mat.

Length of array/vector

Q: Should be row*cols*channels right?
A: Not always. It can be rows*cols*x*y*channels.
Q: Should be equal to mat.total()?
A: True for single channel mat. But not for multi-channel mat
Length of the array/vector is slightly tricky because of poor documentation of OpenCV. We have Mat::size public member which stores only the dimensions of single Mat without channels. For RGB image, Mat.size = [rows, cols] and not [rows, cols, channels]. Mat.total() returns total elements in a single channel of the mat which is equal to product of values in mat.size. For RGB image, total() = rows*cols. Thus, for any general Mat, length of continuous memory block would be mat.total()*mat.channels().

Reconstructing Mat from array/vector

Apart from array/vector we also need the original Mat's mat.size [array like] and mat.type() [int]. Then using one of the constructors that take data's pointer, we can obtain original Mat. The optional step argument is not required because our data pointer points to continuous memory. I used this method to pass Mat as Uint8Array between nodejs and C++. This avoided writing C++ bindings for cv::Mat with node-addon-api.

References:

• Create memory continuous Mat
• OpenCV Mat data layout
• Mat from array

Dangling Pointer

If any pointer is pointing the memory address of any variable but after some variable has deleted from that memory location while pointer is still pointing such memory location. Such pointer is known as dangling pointer and this problem is known as dangling pointer problem.

#include<stdio.h>

  int *call();

  void main(){

      int *ptr;
      ptr=call();

      fflush(stdin);
      printf("%d",*ptr);

   }

 int * call(){

   int x=25;
   ++x;
   return &x;
 }

Output: Garbage value

Note: In some compiler you may get warning message returning address of local variable or temporary

Explanation: variable x is local variable. Its scope and lifetime is within the function call hence after returning address of x variable x became dead and pointer is still pointing ptr is still pointing to that location.

Solution of this problem: Make the variable x is as static variable. In other word we can say a pointer whose pointing object has been deleted is called dangling pointer.

Memory Leak

In computer science, a memory leak occurs when a computer program incorrectly manages memory allocations. As per simple we have allocated the memory and not Free other language term say not release it call memory leak it is fatal to application and unexpected crash.

String[] elements = { "a", "a","a","a" };

for( int i=0; i<elements.length-1; i++)
{
    String s1 = elements[i];
    String s2 = elements[i+1];
}

I did something like that :

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    View view = super.getView(position, convertView, parent);

    TextView textView = (TextView) view.findViewById(android.R.id.text1);
    textView.setHeight(30);
    textView.setMinimumHeight(30);

    /*YOUR CHOICE OF COLOR*/
    textView.setTextColor(Color.BLACK);

    return view;
}

You must put the both fields textView.setHeight(30); textView.setMinimumHeight(30); or it won't change anything. For me it worked & i had the same problem.

Select First two Character in selected Field with Left(string,Number of Char in int)

SELECT LEFT(FName, 2) AS FirstName FROM dbo.NameMaster

Summing up what the others have suggested, and adding a third way

You can:

• assign(**kwargs):

   df.assign(Name='abc')
  

• access the new column series (it will be created) and set it:

   df['Name'] = 'abc'
  

• insert(loc, column, value, allow_duplicates=False)

   df.insert(0, 'Name', 'abc')
  

where the argument loc ( 0 <= loc <= len(columns) ) allows you to insert the column where you want.

'loc' gives you the index that your column will be at after the insertion. For example, the code above inserts the column Name as the 0-th column, i.e. it will be inserted before the first column, becoming the new first column. (Indexing starts from 0).

All these methods allow you to add a new column from a Series as well (just substitute the 'abc' default argument above with the series).

I had to overcome this problem myself, when debugging web applications. -v is great, but a little too verbose for my tastes. This is the (bash-only) solution I came up with:

curl -v http://example.com/ 2> >(sed '/^*/d')

This works because the output from -v is sent to stderr, not stdout. By redirecting this to a subshell, we can sed it to remove lines that start with *. Since the real output does not pass through the subshell, it is not affected. Using a subshell is a little heavy-handed, but it's the easiest way to redirect stderr to another command. (As I noted, I'm only using this for testing, so it works fine for me.)

From Tomcat Documentation

maxConnections When this number has been reached, the server will accept, but not process, one further connection. once the limit has been reached, the operating system may still accept connections based on the acceptCount setting. (The maximum queue length for incoming connection requests when all possible request processing threads are in use. Any requests received when the queue is full will be refused. The default value is 100.) For BIO the default is the value of maxThreads unless an Executor is used in which case the default will be the value of maxThreads from the executor. For NIO and NIO2 the default is 10000. For APR/native, the default is 8192. Note that for APR/native on Windows, the configured value will be reduced to the highest multiple of 1024 that is less than or equal to maxConnections. This is done for performance reasons.

maxThreads
The maximum number of request processing threads to be created by this Connector, which therefore determines the maximum number of simultaneous requests that can be handled. If not specified, this attribute is set to 200. If an executor is associated with this connector, this attribute is ignored as the connector will execute tasks using the executor rather than an internal thread pool.

In JAVA,

    Integer[] arrayInteger = {1,2,3,4,3,2,4,6,7,8,9,9,10};

    String value ="";

    for(Integer i:arrayInteger)
    {
        if(!value.contains(Integer.toString(i))){
            value +=Integer.toString(i)+",";
        }

    }

    String[] arraySplitToString = value.split(",");
    Integer[] arrayIntResult = new Integer[arraySplitToString.length];
    for(int i = 0 ; i < arraySplitToString.length ; i++){
        arrayIntResult[i] = Integer.parseInt(arraySplitToString[i]);
    }

output: { 1, 2, 3, 4, 6, 7, 8, 9, 10}

hope this will help

Marius's answer worked perfectly for me:

df.reset_index() sets the index as the first column, with the column label "index." You can now use the index as an axis for plotting, as described in his answer:

monthly_mean.reset_index().plot(x='index', y='A')

However, this does not change the original dataframe. The original dataframe will be unchanged unless it is set using df = df.reset_index().

example:

df.reset_index()
print(df)

        COF    TSF    PSF
3.0   0.946  0.914  0.966
4.0   0.963  0.940  0.976
6.0   0.978  0.965  0.987
8.0   0.989  0.984  0.995
10.0  1.000  1.000  1.000
12.0  1.004  1.013  1.009
15.0  1.013  1.026  1.012
17.0  1.019  1.037  1.017
20.0  1.024  1.045  1.020
25.0  1.030  1.057  1.026
30.0  1.034  1.065  1.030
35.0  1.037  1.069  1.031
40.0  1.037  1.068  1.030
60.0  1.037  1.068  1.030

df = df.reset_index()
print(df)

    index    COF    TSF    PSF
0     3.0  0.946  0.914  0.966
1     4.0  0.963  0.940  0.976
2     6.0  0.978  0.965  0.987
3     8.0  0.989  0.984  0.995
4    10.0  1.000  1.000  1.000
5    12.0  1.004  1.013  1.009
6    15.0  1.013  1.026  1.012
7    17.0  1.019  1.037  1.017
8    20.0  1.024  1.045  1.020
9    25.0  1.030  1.057  1.026
10   30.0  1.034  1.065  1.030
11   35.0  1.037  1.069  1.031
12   40.0  1.037  1.068  1.030
13   60.0  1.037  1.068  1.030

See: DataFrame.reset_index and DataFrame.set_index

I've made a gist with THE perfect method to manage fragment replacement and lifecycle.

It only replace the current fragment by a new one, if it's not the same and if it's not in backstack (in this case it will pop it).

It contain several option as if you want the fragment to be saved in backstack.

=> See Gist here

Using this and a single Activity, you may want to add this to your activity:

@Override
public void onBackPressed() {
    int fragments = getSupportFragmentManager().getBackStackEntryCount();
    if (fragments == 1) {
            finish();
            return;
    }

    super.onBackPressed();
}

A Java Bean is any Java class that satisfies the following three criteria:

1. It should implement the serializable interface (a Marker interface).
2. The constructor should be public and have no arguments (what other people call a "no-arg constructor").
3. It should have getter and setters.

Good to note the serialVersionUID field is important for maintaining object state.

The below code qualifies as a bean:

public class DataDog implements java.io.Serializable {

private static final long serialVersionUID = -3774654564564563L;

private int id;
private String nameOfDog;

// The constructor should NOT have arguments
public DataDog () {}


/** 4. getter/setter */

// Getter(s)
public int getId() {
    return id;
}

public String getNameOfDog() {
    return nameOfDog;
}


// Setter(s)
public void setId(int id) {
    this.id = id;
}

public void setNameOfDog(String nameOfDog) {
    this.nameOfDog = nameOfDog;
}}

One possibility which has not been mentioned so far is that you might not be editing the file you think you are. i.e. your editor might have a different cwd than you had in mind.

Run 'more' on the file you're compiling to double check that it does indeed have the contents you hope it does. Hope that helps!

2019

TL;DR

• eval operator can run string expression in the context it called and return variables from that context;
• literal object theoretically can do that by write:{[varName]}, but it blocked by definition.

So I come across this question and everyone here just play around without bringing a real solution. but @Axel Heider has a good approaching.

The solution is eval. almost most forgotten operator. ( think most one is with() )

eval operator can dynamically run expression in the context it called. and return the result of that expression. we can use that to dynamically return a variable's value in function's context.

example:

function exmaple1(){
   var a = 1, b = 2, default = 3;
   var name = 'a';
   return eval(name)
}

example1() // return 1


function example2(option){
  var a = 1, b = 2, defaultValue = 3;

  switch(option){
    case 'a': name = 'a'; break;
    case 'b': name = 'b'; break;
    default: name = 'defaultValue';
  }
  return eval (name);
}

example2('a') // return 1
example2('b') // return 2
example2() // return 3

Note that I always write explicitly the expression eval will run. To avoid unnecessary surprises in the code. eval is very strong But I'm sure you know that already

BTW, if it was legal we could use literal object to capture the variable name and value, but we can’t combine computed property names and property value shorthand, sadly, is invalid

functopn example( varName ){
    var var1 = 'foo', var2 ='bar'

    var capture = {[varName]}

}

example('var1') //trow 'Uncaught SyntaxError: Unexpected token }`

I could be wrong because I've never used Angular, but I believe you are probably using ng-bind, which will create just a TextNode.

You will want to use ng-bind-html instead.

http://docs.angularjs.org/api/ngSanitize.directive:ngBindHtml

Update: It looks like you'll need to use ng-bind-html-unsafe='q.category'

http://docs.angularjs.org/api/ng.directive:ngBindHtmlUnsafe

Here's a demo:

http://jsfiddle.net/VFVMv/

I guess that you need a formatted output.

System.out.printf("%.2f",d);

  Button btnDownload = (Button) findViewById(R.id.DownloadView);
  Button btnApp = (Button) findViewById(R.id.AppView);

  btnDownload.setOnClickListener(handler);
  btnApp.setOnClickListener(handler);

  View.OnClickListener handler = new View.OnClickListener(){

  public void onClick(View v) {

    if(v==btnDownload){ 
            // doStuff
            Intent intentMain = new Intent(CurrentActivity.this , 
                                           SecondActivity.class);
            CurrentActivity.this.startActivity(intentMain);
            Log.i("Content "," Main layout ");
    }

    if(v==btnApp){ 
            // doStuff
            Intent intentApp = new Intent(CurrentActivity.this, 
                                          ThirdActivity.class);

            CurrentActivity.this.startActivity(intentApp);

            Log.i("Content "," App layout ");

    }
   }
  };

Note : and then you should declare all your activities in the manifest .xml file like this :

<activity android:name=".SecondActivity" ></activity>
<activity android:name=".ThirdActivity" ></activity>

EDIT : update this part of Code :) :

@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);// Add THIS LINE

    setContentView(R.layout.app);

    TextView tv = (TextView) this.findViewById(R.id.thetext);
    tv.setText("App View yo!?\n");
}

NB : check this (Broken link) Tutorial About How To Switch Between Activities.

The python seaborn module is based on matplotlib, and produces a very nice heatmap.

Below is an implementation with seaborn, designed for the ipython/jupyter notebook.

import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
%matplotlib inline
# import the data directly into a pandas dataframe
nba = pd.read_csv("http://datasets.flowingdata.com/ppg2008.csv", index_col='Name  ')
# remove index title
nba.index.name = ""
# normalize data columns
nba_norm = (nba - nba.mean()) / (nba.max() - nba.min())
# relabel columns
labels = ['Games', 'Minutes', 'Points', 'Field goals made', 'Field goal attempts', 'Field goal percentage', 'Free throws made', 
          'Free throws attempts', 'Free throws percentage','Three-pointers made', 'Three-point attempt', 'Three-point percentage', 
          'Offensive rebounds', 'Defensive rebounds', 'Total rebounds', 'Assists', 'Steals', 'Blocks', 'Turnover', 'Personal foul']
nba_norm.columns = labels
# set appropriate font and dpi
sns.set(font_scale=1.2)
sns.set_style({"savefig.dpi": 100})
# plot it out
ax = sns.heatmap(nba_norm, cmap=plt.cm.Blues, linewidths=.1)
# set the x-axis labels on the top
ax.xaxis.tick_top()
# rotate the x-axis labels
plt.xticks(rotation=90)
# get figure (usually obtained via "fig,ax=plt.subplots()" with matplotlib)
fig = ax.get_figure()
# specify dimensions and save
fig.set_size_inches(15, 20)
fig.savefig("nba.png")

The output looks like this: I used the matplotlib Blues color map, but personally find the default colors quite beautiful. I used matplotlib to rotate the x-axis labels, as I couldn't find the seaborn syntax. As noted by grexor, it was necessary to specify the dimensions (fig.set_size_inches) by trial and error, which I found a bit frustrating.

As noted by Paul H, you can easily add the values to heat maps (annot=True), but in this case I didn't think it improved the figure. Several code snippets were taken from the excellent answer by joelotz.

why a[] doesn't equals b[]? Because equals function really called on Byte[] or byte[] is Object.equals(Object obj). This functions only compares object identify , don't compare the contents of the array.

I have solved the issue by doing following steps and I hope it helps.

1. Type docker ps -a to list all the containers in your system.
2. Check the NAMES part where you have initialized your docker container.
3. Then type docker rm --force name_of_container
4. Install the docker container as you wish.

I had problem using NIFI and I have removed and reinstalled using docker. Good luck.

Had the same issue on 64 bit win7 machine on company network behind proxy with automatically detected settings.

After a number of trials and failures the following workaround proved to be successful:

• sharing my phone's wifi internet connection via USB

Best regards, Robert

You just use label for breaking inner loops

public class Test {
public static void main(String[] args) {
    outerloop:
for (int i=0; i < 5; i++) {
  for (int j=0; j < 5; j++) {
    if (i * j > 6) {
      System.out.println("Breaking");
      break outerloop;
    }
    System.out.println(i + " " + j);
  }
}
System.out.println("Done");
}
}

I personally made this python code to change the color of a whole image opened or created with openCV . I am sorry if it's not good enough , I am beginner .

def OpenCvImgColorChanger(img,blue = 0,green = 0,red = 0):
line = 1
ImgColumn = int(img.shape[0])-2
ImgRaw  = int(img.shape[1])-2



for j in range(ImgColumn):

    for i in range(ImgRaw):

        if i == ImgRaw-1:
            line +=1

        img[line][i][2] = int(red)
        img[line][i][1] = int(green)
        img[line][i][0] = int(blue)

I followed this approach:

import numpy as np
import cv2

ls = []

for image in image_paths:
    ls.append(cv2.imread('test.jpg'))

img_np = np.array(ls) # shape (100, 480, 640, 3)
img_np = np.rollaxis(img_np, 0, 4) # shape (480, 640, 3, 100).

As of Swift 2.2, there is a special syntax for compiler-time checked selectors. It uses the syntax: #selector(methodName).

Swift 3 and later:

var b = UIBarButtonItem(
    title: "Continue",
    style: .plain,
    target: self,
    action: #selector(sayHello(sender:))
)

func sayHello(sender: UIBarButtonItem) {
}

If you are unsure what the method name should look like, there is a special version of the copy command that is very helpful. Put your cursor somewhere in the base method name (e.g. sayHello) and press Shift+Control+Option+C. That puts the ‘Symbol Name’ on your keyboard to be pasted. If you also hold Command it will copy the ‘Qualified Symbol Name’ which will include the type as well.

Swift 2.3:

var b = UIBarButtonItem(
    title: "Continue",
    style: .Plain,
    target: self,
    action: #selector(sayHello(_:))
)

func sayHello(sender: UIBarButtonItem) {
}

This is because the first parameter name is not required in Swift 2.3 when making a method call.

You can learn more about the syntax on swift.org here: https://swift.org/blog/swift-2-2-new-features/#compile-time-checked-selectors

If you want all the chars of a word/sentence in a list, do this:

print(list("word"))
#  ['w', 'o', 'r', 'd']


print(list("some sentence"))
#  ['s', 'o', 'm', 'e', ' ', 's', 'e', 'n', 't', 'e', 'n', 'c', 'e']

This will replace your existing mySelect with a new mySelect.

$('#mySelect').replaceWith('<Select id="mySelect" size="9">
   <option value="whatever" selected="selected" >text</option>
   </Select>');

From the docs

• can I use the above method without any negative impact and without compromising a future appstore submission?

Bitcode will allow apple to optimise the app without you having to submit another build. But, you can only enable this feature if all frameworks and apps in the app bundle have this feature enabled. Having it helps, but not having it should not have any negative impact.

• What does the ENABLE_BITCODE actually do, will it be a non-optional requirement in the future?

For iOS apps, bitcode is the default, but optional. If you provide bitcode, all apps and frameworks in the app bundle need to include bitcode. For watchOS apps, bitcode is required.

• Are there any performance impacts if I enable / disable it?

The App Store and operating system optimize the installation of iOS and watchOS apps by tailoring app delivery to the capabilities of the user’s particular device, with minimal footprint. This optimization, called app thinning, lets you create apps that use the most device features, occupy minimum disk space, and accommodate future updates that can be applied by Apple. Faster downloads and more space for other apps and content provides a better user experience.

There should not be any performance impacts.

This should also work:

ArrayList<String> orig = new ArrayList<String>();
ArrayList<String> copy = (ArrayList<String>) orig.clone()

You can use the HSL color model to create your colors.

If all you want is differing hues (likely), and slight variations on lightness or saturation, you can distribute the hues like so:

// assumes hue [0, 360), saturation [0, 100), lightness [0, 100)

for(i = 0; i < 360; i += 360 / num_colors) {
    HSLColor c;
    c.hue = i;
    c.saturation = 90 + randf() * 10;
    c.lightness = 50 + randf() * 10;

    addColor(c);
}

1. Switch to Branch2

   git checkout Branch2
   

2. Apply the current (Branch2) changes on top of the Branch1 changes, staying in Branch2:

   git rebase Branch1
   

Which would leave you with the desired result in Branch2:

a -- b -- c                      <-- Master
           \
            d -- e               <-- Branch1
           \
            d -- e -- f' -- g'   <-- Branch2

You can delete Branch1.

Easier solution will be changing this line

ft.replace(R.id.content_frame, A); to ft.add(R.id.content_frame, A);

And inside your XML layout please use

  android:background="@color/white"
  android:clickable="true"
  android:focusable="true"

Clickable means that it can be clicked by a pointer device or be tapped by a touch device.

Focusable means that it can gain the focus from an input device like a keyboard. Input devices like keyboards cannot decide which view to send its input events to based on the inputs itself, so they send them to the view that has focus.

Additionally to what Tomasz W wrote, by starting your application you could use settings:

-Dorg.apache.logging.log4j.simplelog.StatusLogger.level=TRACE 

to get most of configuration problems.

For details see Log4j2 FAQ: How do I debug my configuration?

For anyone using Laravel. I was having the same error on Laravel 7.0. The error looked like this

syntax error, unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM), expecting ';' or ','

It was in my Routes\web.php file, which looked like this

use Illuminate\Support\Facades\Route;
use Illuminate\Http\Request;
use // this was an extra **use** statement that gave me the error

Route::get('/', function () {
    return view('save-online.index');
})->name('save-online.index');

Thread.sleep can throw an InterruptedException which is a checked exception. All checked exceptions must either be caught and handled or else you must declare that your method can throw it. You need to do this whether or not the exception actually will be thrown. Not declaring a checked exception that your method can throw is a compile error.

You either need to catch it:

try {
    Thread.sleep(1000);
} catch (InterruptedException e) {
    e.printStackTrace();
    // handle the exception...        
    // For example consider calling Thread.currentThread().interrupt(); here.
}

Or declare that your method can throw an InterruptedException:

public static void main(String[]args) throws InterruptedException

Related

• Lesson - Exceptions
• When does Java's Thread.sleep throw InterruptedException?
• Java theory and practice: Dealing with InterruptedException

i Create new E-mail without any phone number or related E-mail then Turn ON less secure app access that done with me

GhostDoc!

Right-click on the function, select "Document this" and

private bool FindTheFoo(int numberOfFoos)

becomes

/// <summary>
/// Finds the foo.
/// </summary>
/// <param name="numberOfFoos">The number of foos.</param>
/// <returns></returns>
private bool FindTheFoo(int numberOfFoos)

(yes, it is all autogenerated).

It has support for C#, VB.NET and C/C++. It is per default mapped to Ctrl+Shift+D.

Remember: you should add information beyond the method signature to the documentation. Don't just stop with the autogenerated documentation. The value of a tool like this is that it automatically generates the documentation that can be extracted from the method signature, so any information you add should be new information.

That being said, I personally prefer when methods are totally selfdocumenting, but sometimes you will have coding-standards that mandate outside documentation, and then a tool like this will save you a lot of braindead typing.

Coming in a bit late here but Android Studio has a very handy icon asset wizard. Its very self explanatory but has a few handy effects and its built right in:

Several other answer give the solution using MAX. In some scenarios using an agregate function is either not possilbe, or not performant.

The alternative that I use a lot is to use a correlated sub-query in the join...

SELECT
   `userName`,
   `carPrice`
FROM `users`
LEFT JOIN `cars`
ON cars.id = (
  SELECT id FROM `cars` WHERE BelongsToUser = users.id ORDER BY carPrice DESC LIMIT 1
)
WHERE `id`='4'

Relatable post

Those pesky black dots you are referencing to are called bullets.

They are pretty simple to remove, just add this line to your css:

ul {
    list-style-type: none;
}

Hope this helps

SELECT distinct
  group, 
  max_date = MAX(date) OVER (PARTITION BY group), checks
FROM table

Should work.

QueueHandler is native in Python 3.2+, and does exactly this. It is easily replicated in previous versions.

Python docs have two complete examples: Logging to a single file from multiple processes

For those using Python < 3.2, just copy QueueHandler into your own code from: https://gist.github.com/vsajip/591589 or alternatively import logutils.

Each process (including the parent process) puts its logging on the Queue, and then a listener thread or process (one example is provided for each) picks those up and writes them all to a file - no risk of corruption or garbling.

When it is looking for the seeder class file, you can run composer dump-autoload. When you run it again and it's looking for the Model, you can reference it on the seeder file itself. Like so,

use App\{Model};

You might just have to install the packages.

yum install php-pdo php-mysqli

After they're installed, restart Apache.

httpd restart

or

apachectl restart

If you insist on having this trivial function in pure batch I suggest this:

@echo off

set x=somestring
set n=0
set m=255

:loop
if "!x:~%m%,1!" == "" (
    set /a "m>>=1"
    goto loop
) else (
    set /a n+=%m%+1
    set x=!x:~%m%!
    set x=!x:~1!
    if not "!x!" == "" goto loop
)

echo %n%

PS. You must have delayed variable expansion enabled to run this.

EDIT. Now I have made an improved version:

@echo off

set x=somestring
set n=0

for %%m in (4095 2047 1023 511 255 127 63 31 15 7 3 1 0) do (
    if not "!x:~%%m,1!" == "" (
        set /a n+=%%m+1
        set x=!x:~%%m!
        set x=!x:~1!
        if "!x!" == "" goto done
    )
)

:done
echo %n%

EDIT2. If you have a C compiler or something on your system you can create the programs you need and miss on the fly if they don't exist. This method is very general. Take string length as an example:

@echo off

set x=somestring

if exist strlen.exe goto comp
echo #include "string.h" > strlen.c
echo int main(int argc, char* argv[]) { return strlen(argv[1]); } >> strlen.c
CL strlen.c 

:comp
strlen "%x%"
set n=%errorlevel%
echo %n%

You have to set up PATH, INCLUDE and LIB appropriately. This too can be done on the fly from the batch script. Even if you don't know whether you've got a compiler or don't know where it is you can search for it in your script.

maybe it is too rude, but works for me. restart docker service itself

sudo service docker restart

hope it works for you also!

You can't modify a collection while you're iterating over it with foreach. You might try using a regular for() statement.

You may need to iterate backwards from the end of the collection to make sure you cover every item in the collection and don't accidentally overrun the end of the collection after removing an item (since the length would change). I can't remember if .NET accounts for that possibility or not.

I know it is a bit late for this answer, but I hope it helps someone.

I was looking for the same thing (Zoom using pinch, and dragging image) and I found this Android Developers Blog link.

Works perfect. No artifacts or what so ever. It uses ScaleGestureDetector.

You need to move the unique_ptr:

vec.push_back(std::move(ptr2x));

unique_ptr guarantees that a single unique_ptr container has ownership of the held pointer. This means that you can't make copies of a unique_ptr (because then two unique_ptrs would have ownership), so you can only move it.

Note, however, that your current use of unique_ptr is incorrect. You cannot use it to manage a pointer to a local variable. The lifetime of a local variable is managed automatically: local variables are destroyed when the block ends (e.g., when the function returns, in this case). You need to dynamically allocate the object:

std::unique_ptr<int> ptr(new int(1));

In C++14 we have an even better way to do so:

make_unique<int>(5);

Yo don't need any java code. You just have to :

<ImageView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:adjustViewBounds="true"
    android:scaleType="centerCrop" />

The key is in the match parent for width and height

open is a new access level in Swift 3, introduced with the implementation of

• SE-0117 Allow distinguishing between public access and public overridability

It is available with the Swift 3 snapshot from August 7, 2016, and with Xcode 8 beta 6.

In short:

• An open class is accessible and subclassable outside of the defining module. An open class member is accessible and overridable outside of the defining module.
• A public class is accessible but not subclassable outside of the defining module. A public class member is accessible but not overridable outside of the defining module.

So open is what public used to be in previous Swift releases and the access of public has been restricted. Or, as Chris Lattner puts it in SE-0177: Allow distinguishing between public access and public overridability:

“open” is now simply “more public than public”, providing a very simple and clean model.

In your example, open var hashValue is a property which is accessible and can be overridden in NSObject subclasses.

For more examples and details, have a look at SE-0117.

You can try xml2js. It's a simple XML to JavaScript object converter. It gets your XML converted to a JS object so that you can access its content with ease.

Here are some other options:

1. libxmljs
2. xml-stream
3. xmldoc
4. cheerio – implements a subset of core jQuery for XML (and HTML)

I have used xml2js and it has worked fine for me. The rest you might have to try out for yourself.

An old question but it still shows up in Google results...

A very un-restrictive MIT Licensed C# / .NET library can be found at,

https://www.codeproject.com/articles/1107480/dsplib-fft-dft-fourier-transform-library-for-net

This library is fast as it parallel threads on multiple cores and is very complete and ready to use.

If you try to decrypt PKCS5-padded data with the wrong key, and then unpad it (which is done by the Cipher class automatically), you most likely will get the BadPaddingException (with probably of slightly less than 255/256, around 99.61%), because the padding has a special structure which is validated during unpad and very few keys would produce a valid padding.

So, if you get this exception, catch it and treat it as "wrong key".

This also can happen when you provide a wrong password, which then is used to get the key from a keystore, or which is converted into a key using a key generation function.

Of course, bad padding can also happen if your data is corrupted in transport.

That said, there are some security remarks about your scheme:

• For password-based encryption, you should use a SecretKeyFactory and PBEKeySpec instead of using a SecureRandom with KeyGenerator. The reason is that the SecureRandom could be a different algorithm on each Java implementation, giving you a different key. The SecretKeyFactory does the key derivation in a defined manner (and a manner which is deemed secure, if you select the right algorithm).

• Don't use ECB-mode. It encrypts each block independently, which means that identical plain text blocks also give always identical ciphertext blocks.

  Preferably use a secure mode of operation, like CBC (Cipher block chaining) or CTR (Counter). Alternatively, use a mode which also includes authentication, like GCM (Galois-Counter mode) or CCM (Counter with CBC-MAC), see next point.

• You normally don't want only confidentiality, but also authentication, which makes sure the message is not tampered with. (This also prevents chosen-ciphertext attacks on your cipher, i.e. helps for confidentiality.) So, add a MAC (message authentication code) to your message, or use a cipher mode which includes authentication (see previous point).

• DES has an effective key size of only 56 bits. This key space is quite small, it can be brute-forced in some hours by a dedicated attacker. If you generate your key by a password, this will get even faster. Also, DES has a block size of only 64 bits, which adds some more weaknesses in chaining modes. Use a modern algorithm like AES instead, which has a block size of 128 bits, and a key size of 128 bits (for the standard variant).

You can try another way like that:

<div class="content">
        Australia
    </div>

jQuery code:

$(".content").css({
    background: "#d1d1d1",
    fontSize: "30px"
})

Now you can add more css property as you want.

Here's a nice semi cross-browser way to have gradient borders that fade out half way down. Simply by setting the color-stop to rgba(0, 0, 0, 0)

.fade-out-borders {
min-height: 200px; /* for example */

-webkit-border-image: -webkit-gradient(linear, 0 0, 0 50%, from(black), to(rgba(0, 0, 0, 0))) 1 100%;
-webkit-border-image: -webkit-linear-gradient(black, rgba(0, 0, 0, 0) 50%) 1 100%;
-moz-border-image: -moz-linear-gradient(black, rgba(0, 0, 0, 0) 50%) 1 100%;
-o-border-image: -o-linear-gradient(black, rgba(0, 0, 0, 0) 50%) 1 100%;
border-image: linear-gradient(to bottom, black, rgba(0, 0, 0, 0) 50%) 1 100%;
}

<div class="fade-out-border"></div>

Usage explained:

Formal grammar: linear-gradient(  [ <angle> | to <side-or-corner> ,]? <color-stop> [, <color-stop>]+ )
                              \---------------------------------/ \----------------------------/
                                Definition of the gradient line         List of color stops  

More here: https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient

The solution, if your list items can be display: inline is quite easy:

#footer { text-align: center; }
#footer ul { list-style: none; }
#footer ul li { display: inline; }

However, many times you must use display:block on your <li>s. The following CSS will work, in this case:

#footer { width: 100%; overflow: hidden; }
#footer ul { list-style: none; position: relative; float: left; display: block; left: 50%; }
#footer ul li { position: relative; float: left; display: block; right: 50%; }

Since version v4.x you should use _.map:

_.map(users, 'id'); // [12, 14, 16, 18]

this way it is corresponds to native Array.prototype.map method where you would write (ES2015 syntax):

users.map(user => user.id); // [12, 14, 16, 18]

Before v4.x you could use _.pluck the same way:

_.pluck(users, 'id'); // [12, 14, 16, 18]

Tomcat can tell you in several ways. Here's the easiest:

 $ /path/to/catalina.sh version
Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.29
Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.29
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.29/temp
Using JRE_HOME:        /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
Using CLASSPATH:       /usr/local/apache-tomcat-7.0.29/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.29/bin/tomcat-juli.jar
Server version: Apache Tomcat/7.0.29
Server built:   Jul 3 2012 11:31:52
Server number:  7.0.29.0
OS Name:        Mac OS X
OS Version:     10.7.4
Architecture:   x86_64
JVM Version:    1.6.0_33-b03-424-11M3720
JVM Vendor:     Apple Inc.

If you don't know where catalina.sh is (or it never gets called), you can usually find it via ps:

$ ps aux | grep catalina
chris            930   0.0  3.1  2987336 258328 s000  S    Wed01PM   2:29.43 /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Dnop -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.library.path=/usr/local/apache-tomcat-7.0.29/lib -Djava.endorsed.dirs=/usr/local/apache-tomcat-7.0.29/endorsed -classpath /usr/local/apache-tomcat-7.0.29/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.29/bin/tomcat-juli.jar -Dcatalina.base=/Users/chris/blah/blah -Dcatalina.home=/usr/local/apache-tomcat-7.0.29 -Djava.io.tmpdir=/Users/chris/blah/blah/temp org.apache.catalina.startup.Bootstrap start

From the ps output, you can see both catalina.home and catalina.base. catalina.home is where the Tomcat base files are installed, and catalina.base is where the running configuration of Tomcat exists. These are often set to the same value unless you have configured your Tomcat for multiple (configuration) instances to be launched from a single Tomcat base install.

You can also interrogate the JVM directly if you can't find it in a ps listing:

$ jinfo -sysprops 930 | grep catalina
Attaching to process ID 930, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 20.8-b03-424
catalina.base = /Users/chris/blah/blah
[...]
catalina.home = /usr/local/apache-tomcat-7.0.29

If you can't manage that, you can always try to write a JSP that dumps the values of the two system properties catalina.home and catalina.base.

Just comment all lines in first Directory. Or you can remove these lines, but better to keep in case later you want to add some restrictions, you will uncomment.

#<Directory /usr/share/phpMyAdmin/>
#   <IfModule mod_authz_core.c>
#     # Apache 2.4
#     <RequireAny>
#       Require ip 127.0.0.1
#       Require ip ::1
#     </RequireAny>
#   </IfModule>
#   <IfModule !mod_authz_core.c>
#     # Apache 2.2
#     Order Deny,Allow
#     Deny from All
#     Allow from 127.0.0.1
#     Allow from ::1
#   </IfModule>
#</Directory>

Run jupyter kernelspec list to get the paths of all your kernels.
Then simply uninstall your unwanted-kernel

jupyter kernelspec uninstall unwanted-kernel

Old answer
Delete the folder corresponding to the kernel you want to remove.

The docs has a list of the common paths for kernels to be stored in: http://jupyter-client.readthedocs.io/en/latest/kernels.html#kernelspecs

The csh shell has never been known for its extensive ability to manipulate file handles in the redirection process.

You can redirect both standard output and error to a file with:

xxx >& filename

but that's not quite what you were after, redirecting standard error to the current standard output.

However, if your underlying operating system exposes the standard output of a process in the file system (as Linux does with /dev/stdout), you can use that method as follows:

xxx >& /dev/stdout

This will force both standard output and standard error to go to the same place as the current standard output, effectively what you have with the bash redirection, 2>&1.

Just keep in mind this isn't a csh feature. If you run on an operating system that doesn't expose standard output as a file, you can't use this method.

However, there is another method. You can combine the two streams into one if you send it to a pipeline with |&, then all you need to do is find a pipeline component that writes its standard input to its standard output. In case you're unaware of such a thing, that's exactly what cat does if you don't give it any arguments. Hence, you can achieve your ends in this specific case with:

xxx |& cat

Of course, there's also nothing stopping you from running bash (assuming it's on the system somewhere) within a csh script to give you the added capabilities. Then you can use the rich redirections of that shell for the more complex cases where csh may struggle.

Let's explore this in more detail. First, create an executable echo_err that will write a string to stderr:

#include <stdio.h>
int main (int argc, char *argv[]) {
    fprintf (stderr, "stderr (%s)\n", (argc > 1) ? argv[1] : "?");
    return 0;
}

Then a control script test.csh which will show it in action:

#!/usr/bin/csh

ps -ef ; echo ; echo $$ ; echo

echo 'stdout (csh)'
./echo_err csh

bash -c "( echo 'stdout (bash)' ; ./echo_err bash ) 2>&1"

The echo of the PID and ps are simply so you can ensure it's csh running this script. When you run this script with:

./test.csh >test.out 2>test.err

(the initial redirection is set up by bash before csh starts running the script), and examine the out/err files, you see:

test.out:
    UID     PID    PPID  TTY        STIME     COMMAND
    pax    5708    5364  cons0      11:31:14  /usr/bin/ps
    pax    5364    7364  cons0      11:31:13  /usr/bin/tcsh
    pax    7364       1  cons0      10:44:30  /usr/bin/bash

    5364

    stdout (csh)
    stdout (bash)
    stderr (bash)

test.err:
    stderr (csh)

You can see there that the test.csh process is running in the C shell, and that calling bash from within there gives you the full bash power of redirection.

The 2>&1 in the bash command quite easily lets you redirect standard error to the current standard output (as desired) without prior knowledge of where standard output is currently going.

  Boolean condition=false;  //Instance variable declaration.

 //-----------------Inside oncreate--------------------------------------------------- 
  start =(Button)findViewById(R.id.id_start);
        start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                starthandler();

                if(condition=true)
                {
                    condition=false;
                }


            }
        });

        stop=(Button) findViewById(R.id.id_stoplocatingsmartplug);

        stop.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                stophandler();

            }
        });


    }

//-----------------Inside oncreate---------------------------------------------------

 public void starthandler()
    {

        handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {


                if(!condition)
                {
                    //Do something after 100ms 


                }

            }
        }, 5000);

    }


    public void stophandler()
    {
        condition=true;
    }

I extended @Ben Lesh's answer with an ability to specify whether the validation is case sensitive or not (default)

use:

<input type="text" name="fruitName" ng-model="data.fruitName" blacklist="Coconuts,Bananas,Pears" caseSensitive="true" required/>

code:

angular.module('crm.directives', []).
directive('blacklist', [
    function () {
        return {
            restrict: 'A',
            require: 'ngModel',
            scope: {
                'blacklist': '=',
            },
            link: function ($scope, $elem, $attrs, modelCtrl) {

                var check = function (value) {
                    if (!$attrs.casesensitive) {
                        value = (value && value.toUpperCase) ? value.toUpperCase() : value;

                        $scope.blacklist = _.map($scope.blacklist, function (item) {
                            return (item.toUpperCase) ? item.toUpperCase() : item
                        })
                    }

                    return !_.isArray($scope.blacklist) || $scope.blacklist.indexOf(value) === -1;
                }

                //For DOM -> model validation
                modelCtrl.$parsers.unshift(function (value) {
                    var valid = check(value);
                    modelCtrl.$setValidity('blacklist', valid);

                    return value;
                });
                //For model -> DOM validation
                modelCtrl.$formatters.unshift(function (value) {
                    modelCtrl.$setValidity('blacklist', check(value));
                    return value;
                });
            }
        };
    }
]);

I find identically-specced AVDs run and load far better on my home machine (Phenom II x4 945/8GB RAM/Win7 HP 64bit) than they do on my work machine (Core2Duo/3GB RAM/Ubuntu 11.04 32bit).

As you're essentially running a virtual machine, I would personally go for nothing less than a dual core/4GB, though highly recommend a quad/8GB if you can splash out for that.

Just for anyone trying to do this automatically, you can use that extension method to ignore non existing properties on the destination type :

public static IMappingExpression<TSource, TDestination> IgnoreAllNonExisting<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
{
    var sourceType = typeof(TSource);
    var destinationType = typeof(TDestination);
    var existingMaps = Mapper.GetAllTypeMaps().First(x => x.SourceType.Equals(sourceType)
        && x.DestinationType.Equals(destinationType));
    foreach (var property in existingMaps.GetUnmappedPropertyNames())
    {
        expression.ForMember(property, opt => opt.Ignore());
    }
    return expression;
}

to be used as follow :

Mapper.CreateMap<SourceType, DestinationType>().IgnoreAllNonExisting();

thanks to Can Gencer for the tip :)

source : http://cangencer.wordpress.com/2011/06/08/auto-ignore-non-existing-properties-with-automapper/

Off the cuff, it feels like your project is connected to an older version of the Play Services library project. The recommended approach, by Google, is for you to find the library project in the SDK and make a local copy. This does mean, though, that any time you update the Play Services library project through the SDK Manager, you also need to replace your copy with a fresh copy.