For me it was that I could not cluster my zookeeper.

hdfs haadmin -getServiceState 1
active

hdfs haadmin -getServiceState 2
active

My hadoop-hdfs-zkfc-[hostname].log showed:

2017-04-14 11:46:55,351 WARN org.apache.hadoop.ha.HealthMonitor: Transport-level exception trying to monitor health of NameNode at HOST/192.168.1.55:9000: java.net.ConnectException: Connection refused Call From HOST/192.168.1.55 to HOST:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

solution:

hdfs-site.xml
  <property>
    <name>dfs.namenode.rpc-bind-host</name>
      <value>0.0.0.0</value>
  </property>

before

netstat -plunt

tcp        0      0 192.168.1.55:9000        0.0.0.0:*               LISTEN      13133/java

nmap localhost -p 9000

Starting Nmap 6.40 ( http://nmap.org ) at 2017-04-14 12:15 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000047s latency).
Other addresses for localhost (not scanned): 127.0.0.1
PORT     STATE  SERVICE
9000/tcp closed cslistener

after

netstat -plunt
tcp        0      0 0.0.0.0:9000            0.0.0.0:*               LISTEN      14372/java

nmap localhost -p 9000

Starting Nmap 6.40 ( http://nmap.org ) at 2017-04-14 12:28 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000039s latency).
Other addresses for localhost (not scanned): 127.0.0.1
PORT     STATE SERVICE
9000/tcp open  cslistener

One possible solution to this issue is ng-model attribute is required to use that directive.

Hence adding in the 'ng-model' attribute can resolve the issue.

<input submit-required="true" ng-model="user.Name"></input>

Van, in your case where tomcat won't shutdown normally, i would use

ps ax | grep java

to find the java process number. If that command returns something, then run

sudo kill -9 pid

where pid is the process number. The -9 option means 'just kill it', and normally you don't need this sort of thing, but since in your situation the process won't stop normally, you need it.

The output of the first command should look like

38678 s002  U      0:02.62 /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/bin/java -Djava.util.logging.config.file=/usr/share/apache-tomcat-6.0.26/conf/logging.properties -Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=512m -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8086 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Djava.rmi.server.hostname=xxxx -Djava.endorsed.dirs=/usr/share/apache-tomcat-6.0.26/endorsed -classpath /usr/share/apache-tomcat-6.0.26/bin/bootstrap.jar -Dcatalina.base=/usr/share/apache-tomcat-6.0.26 -Dcatalina.home=/usr/share/apache-tomcat-6.0.26 -Djava.io.tmpdir=/usr/share/apache-tomcat-6.0.26/temp org.apache.catalina.startup.Bootstrap start

38678 is the process number. Be aware that there might be other java processes running that you might not want to kill. Also, this output is from a mac, so on ubuntu will look slightly different.

my code is

    import { Component } from '@angular/core';

class model {
  username : string;
  password : string;
}

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})



export class AppComponent {

 username : string;
 password : string;
  usermodel = new model();

  login(){
  if(this.usermodel.username == "admin"){
    alert("hi");
  }else{
    alert("bye");
    this.usermodel.username = "";
  }    
  }
}

and the html goes like this :

<div class="login">
  Usernmae : <input type="text" [(ngModel)]="usermodel.username"/>
  Password : <input type="text" [(ngModel)]="usermodel.password"/>
  <input type="button" value="Click Me" (click)="login()" />
</div>

Not sure why this thread got necroed; but here is a 2014 approved answer, which should be far faster:

import numpy as np

data = np.random.rand(100)
bins = 10
slices = np.linspace(0, 100, bins+1, True).astype(np.int)
counts = np.diff(slices)

mean = np.add.reduceat(data, slices[:-1]) / counts
print mean

An application pool is a group of one or more URLs that are served by a worker process or set of worker processes. Any Web directory or virtual directory can be assigned to an application pool.

Every application within an application pool shares the same worker process.

Non-binary string comparisons (including LIKE) are case insensitive by default in MySql: https://dev.mysql.com/doc/refman/en/case-sensitivity.html

Yo could also set labels = FALSE inside axis(...) and print the labels in a separate command with Text. With this option you can rotate the text the text in case you need it

lablist<-as.vector(c(1:10))
axis(1, at=seq(1, 10, by=1), labels = FALSE)
text(seq(1, 10, by=1), par("usr")[3] - 0.2, labels = lablist, srt = 45, pos = 1, xpd = TRUE)

Detailed explanation here

The OP states that each plot element overwrites the previous one rather than being combined into a single plot. This can happen even with one of the many suggestions made by other answers. If you select several lines and run them together, say:

plt.plot(<X>, <Y>)
plt.plot(<X>, <Z>)

the plot elements will typically be rendered together, one layer on top of the other. But if you execute the code line-by-line, each plot will overwrite the previous one.

This perhaps is what happened to the OP. It just happened to me: I had set up a new key binding to execute code by a single key press (on spyder), but my key binding was executing only the current line. The solution was to select lines by whole blocks or to run the whole file.

For Windows you could use msvcrt like this:

   import msvcrt
   while True:
       if msvcrt.kbhit():
           key = msvcrt.getch()
           print(key)   # just to show the result

I forgot to tell a bug when i use I use req.session.email = req.param('email'), the server error says cannot sett property email of undefined.

The reason of this error is a wrong order of app.use. You must configure express in this order:

app.use(express.cookieParser());
app.use(express.session({ secret: sessionVal }));
app.use(app.route);

The precise wording of the question makes me think it's impossible.

return to me means you have a function, which you have passed a string as a parameter.

You cannot change this parameter. Assigning to it will only change the value of the parameter within the function, not the passed in string. E.g.

>>> def removeAndReturnLastCharacter(a):
        c = a[-1]
        a = a[:-1]
        return c

>>> b = "Hello, Gaukler!"
>>> removeAndReturnLastCharacter(b)
!

>>> b    # b has not been changed
Hello, Gaukler!

I too faces similar problem, but once I did the below settings, everything was working fine(While working on other application, I selected 'No Proxy' setting in browser which I forgot to revert.Hence, got this problem)

• In Fiddler, Goto Teleric Fiddler Options->Gateway , then select 'Use System Proxy (recommended)' radio button and click on 'OK' button and restart Fiddler
• In your Browser(for ex: firefox), Goto Options->Advanced->Network->Settings then select 'Use system proxy settings' radio button and click on OK
• Now try accessing any URL from that browser, and observe they are being recorded in Fiddler(If you have applied filters, even they will start working)

Hope this helps..

Get back to me with any other problems

Recently the CAB-forum (*) decided that

All certificates containing an underscore character in any dNSName entry and having a validity period of more than 30 days MUST be revoked prior to January 15, 2019. https://cabforum.org/2018/11/12/ballot-sc-12-sunset-of-underscores-in-dnsnames/

This means that you are no longer allowed to use underscores in domains that will have a ssl/tls certificate.

(*) The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of leading Certificate Issuers (as defined in Section 2.1(a)(1) and (2) below) and vendors of Internet browser software and other applications that use certificates (Certificate Consumers, as defined in Section 2.1(a)(3) below).

If you give a Scanner object a String, it will read it in as data. That is, "a.txt" does not open up a file called "a.txt". It literally reads in the characters 'a', '.', 't' and so forth.

This is according to Core Java Volume I, section 3.7.3.

If I find a solution to reading the actual paths, I will return and update this answer. The solution this text offers is to use

Scanner in = new Scanner(Paths.get("myfile.txt"));

But I can't get this to work because Path isn't recognized as a variable by the compiler. Perhaps I'm missing an import statement.

You can include a legend template in the chart options:

//legendTemplate takes a template as a string, you can populate the template with values from your dataset 
var options = {
  legendTemplate : '<ul>'
                  +'<% for (var i=0; i<datasets.length; i++) { %>'
                    +'<li>'
                    +'<span style=\"background-color:<%=datasets[i].lineColor%>\"></span>'
                    +'<% if (datasets[i].label) { %><%= datasets[i].label %><% } %>'
                  +'</li>'
                +'<% } %>'
              +'</ul>'
  }

  //don't forget to pass options in when creating new Chart
  var lineChart = new Chart(element).Line(data, options);

  //then you just need to generate the legend
  var legend = lineChart.generateLegend();

  //and append it to your page somewhere
  $('#chart').append(legend);

You'll also need to add some basic css to get it looking ok.

An instance variable is a variable that is a member of an instance of a class (i.e., associated with something created with a new), whereas a class variable is a member of the class itself.

Every instance of a class will have its own copy of an instance variable, whereas there is only one of each static (or class) variable, associated with the class itself.

What’s the difference between a class variable and an instance variable?

This test class illustrates the difference:

public class Test {
   
    public static String classVariable = "I am associated with the class";
    public String instanceVariable = "I am associated with the instance";
    
    public void setText(String string){
        this.instanceVariable = string;
    }
    
    public static void setClassText(String string){
        classVariable = string;
    }
    
    public static void main(String[] args) {
        Test test1 = new Test();
        Test test2 = new Test();
        
        // Change test1's instance variable
        test1.setText("Changed");
        System.out.println(test1.instanceVariable); // Prints "Changed"
        // test2 is unaffected
        System.out.println(test2.instanceVariable); // Prints "I am associated with the instance"
        
        // Change class variable (associated with the class itself)
        Test.setClassText("Changed class text");
        System.out.println(Test.classVariable); // Prints "Changed class text"
        
        // Can access static fields through an instance, but there still is only one
        // (not best practice to access static variables through instance)
        System.out.println(test1.classVariable); // Prints "Changed class text"
        System.out.println(test2.classVariable); // Prints "Changed class text"
    }
}

I use the following customization in Laravel to:

1. Default created_at to the current timestamp
2. Update the timestamp when the record is updated

First, I'll create a file, helpers.php, in the root of Laravel and insert the following:

<?php

if (!function_exists('database_driver')) {
    function database_driver(): string
    {
        $connection = config('database.default');
        return config('database.connections.' . $connection . '.driver');
    }
}

if (!function_exists('is_database_driver')) {
    function is_database_driver(string $driver): bool
    {
        return $driver === database_driver();
    }
}

In composer.json, I'll insert the following into autoload. This allows composer to auto-discover helpers.php.

    "autoload": {
        "files": [
            "app/Services/Uploads/Processors/processor_functions.php",
            "app/helpers.php"
        ]
    },

I use the following in my Laravel models.

        if (is_database_driver('sqlite')) {
            $table->timestamps();
        } else {
            $table->timestamp('created_at')->default(\DB::raw('CURRENT_TIMESTAMP'));
            $table->timestamp('updated_at')
                ->default(DB::raw('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'));
        }

This allows my team to continue using sqlite for unit tests. ON UPDATE CURRENT_TIMESTAMP is a MySQL shortcut and is not available in sqlite.

This answer shows the python perspective. Jupyter supports various languages besides python.

Both Jupyter Notebook and Jupyterlab are browser compatible interactive python (i.e. python ".ipynb" files) environments, where you can divide the various portions of the code into various individually executable cells for the sake of better readability. Both of these are popular in Data Science/Scientific Computing domain.

I'd suggest you to go with Jupyterlab for the advantages over Jupyter notebooks:

1. In Jupyterlab, you can create ".py" files, ".ipynb" files, open terminal etc. Jupyter Notebook allows ".ipynb" files while providing you the choice to choose "python 2" or "python 3".
2. Jupyterlab can open multiple ".ipynb" files inside a single browser tab. Whereas, Jupyter Notebook will create new tab to open new ".ipynb" files every time. Hovering between various tabs of browser is tedious, thus Jupyterlab is more helpful here.

I'd recommend using PIP to install Jupyterlab.

If you can't open a ".ipynb" file using Jupyterlab on Windows system, here are the steps:

1. Go to the file --> Right click --> Open With --> Choose another app --> More Apps --> Look for another apps on this PC --> Click.
2. This will open a file explorer window. Now go inside your Python installation folder. You should see Scripts folder. Go inside it.
3. Once you find jupyter-lab.exe, select that and now it will open the .ipynb files by default on your PC.

When you write an implementation file (.cpp, .cxx, etc) your compiler generates a translation unit. This is the source file from your implementation plus all the headers you #included in it.

Internal linkage refers to everything only in scope of a translation unit.

External linkage refers to things that exist beyond a particular translation unit. In other words, accessible through the whole program, which is the combination of all translation units (or object files).

That's right, if you're on a mac(unix) you won't see .git in finder(the file browser). You can follow the directions above to delete and there are git commands that allow you to delete files as well(they are sometimes difficult to work with and learn, for example: on making a 'git rm -r ' command you might be prompted with a .git/ not found. Here is the git command specs:

usage: git rm [options] [--] ...

-n, --dry-run         dry run
-q, --quiet           do not list removed files
--cached              only remove from the index
-f, --force           override the up-to-date check
-r                    allow recursive removal
--ignore-unmatch      exit with a zero status even if nothing matched

When I had to do this, deleting the objects and refs didn't matter. After I deleted the other files in the .git, I initialized a git repo with 'git init' and it created an empty repo.

If you don't want to use a separate JS library to create a custom control for that, you could use two confirm dialogs to do the checks:

if (confirm("Are you sure you want to quit?") ) {
    if (confirm("Save your work before leaving?") ) {
        // code here for save then leave (Yes)
    } else {
        //code here for no save but leave (No)
    }
} else {
    //code here for don't leave (Cancel)
}

Simply Use in Laravel Eloquent:

$a='foo', $b='bar', $c='john', $d='doe';

Coder::where(function ($query) use ($a, $b) {
    $query->where('a', '=', $a)
          ->orWhere('b', '=', $b);
})->where(function ($query) use ($c, $d) {
    $query->where('c', '=', $c)
          ->orWhere('d', '=', $d);
})->get();

Will produce a query like:

SELECT * FROM <table> WHERE (a='foo' or b='bar') AND (c='john' or d='doe');

Just add overflow:auto; to parent div

<div style="width: 100%;overflow:auto;">
    <div style="float:left; width: 80%">
    </div>
    <div style="float:right;">
    </div>
</div>

Working Demo

None of the answers worked with me, but after reading all of them, I figured out what was the issue in my case I have 1 Html page that I want to print but it was printing with it an extra white blank page. I am using AdminLTE a bootstrap 3 theme for the page of the report to print and in it the footer tag I wanted to place this text to the bottom right of the page:

Printed by Mr. Someone

I used jquery to put that text instead of the previous "Copy Rights" footer with

$("footer").html("Printed by Mr. Someone");

and by default in the theme the tag footer uses the class .main-footer which has the attributes

padding: 15px;
border-top: 1px solid 

that caused an extra white space, so after knowing the issue, I had different options, and the best option was to use

$( "footer" ).removeClass( "main-footer" );

Just in that specific page

The export default {...} construction is just a shortcut for something like this:

const funcs = {
    foo() { console.log('foo') }, 
    bar() { console.log('bar') },
    baz() { foo(); bar() }
}

export default funcs

It must become obvious now that there are no foo, bar or baz functions in the module's scope. But there is an object named funcs (though in reality it has no name) that contains these functions as its properties and which will become the module's default export.

So, to fix your code, re-write it without using the shortcut and refer to foo and bar as properties of funcs:

const funcs = {
    foo() { console.log('foo') }, 
    bar() { console.log('bar') },
    baz() { funcs.foo(); funcs.bar() } // here is the fix
}

export default funcs

Another option is to use this keyword to refer to funcs object without having to declare it explicitly, as @pawel has pointed out.

Yet another option (and the one which I generally prefer) is to declare these functions in the module scope. This allows to refer to them directly:

function foo() { console.log('foo') }
function bar() { console.log('bar') }
function baz() { foo(); bar() }

export default {foo, bar, baz}

And if you want the convenience of default export and ability to import items individually, you can also export all functions individually:

// util.js

export function foo() { console.log('foo') }
export function bar() { console.log('bar') }
export function baz() { foo(); bar() }

export default {foo, bar, baz}

// a.js, using default export

import util from './util'
util.foo()

// b.js, using named exports

import {bar} from './util'
bar()

Or, as @loganfsmyth suggested, you can do without default export and just use import * as util from './util' to get all named exports in one object.

Use the @Input() decorator in your child component to allow the parent to bind to this input.

In the child component you declare it as is :

@Input() myInputName: myType

To bind a property from parent to a child you must add in you template the binding brackets and the name of your input between them.

Example :

<my-child-component [myChildInputName]="myParentVar"></my-child-component>

But beware, objects are passed as a reference, so if the object is updated in the child the parent's var will be too updated. This might lead to some unwanted behaviour sometime. With primary types the value is copied.

To go further read this :

Docs : https://angular.io/docs/ts/latest/cookbook/component-communication.html

On centOS7 I changed the file /etc/httpd/conf/httpd.conf

from AllowOverride None to AllowOverride All

Cast from string using float():

>>> float('NaN')
nan
>>> float('Inf')
inf
>>> -float('Inf')
-inf
>>> float('Inf') == float('Inf')
True
>>> float('Inf') == 1
False

In /etc/ansible/ansible.cfg uncomment the line:

host_key_check = False

and in /etc/ansible/hosts uncomment the line

client_ansible ansible_ssh_host=10.1.1.1 ansible_ssh_user=root ansible_ssh_pass=12345678

That's all

Use the

Request.Form[]

for POST variables,

Request.QueryString[]

for GET.

This worked for me.

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Button btnSendSMS = (Button) findViewById(R.id.btnSendSMS);
    btnSendSMS.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            sendSMS("5556", "Hi You got a message!");
           /*here i can send message to emulator 5556. In Real device 
            *you can change number*/
        }
    });
}

//Sends an SMS message to another device

private void sendSMS(String phoneNumber, String message) {
    SmsManager sms = SmsManager.getDefault();
    sms.sendTextMessage(phoneNumber, null, message, null, null);
}

You can add this line in AndroidManifest.xml

<uses-permission android:name="android.permission.SEND_SMS"/>

Take a look at this

This may be helpful for you.

using flexbox:

h2 {
    display: flex;
    align-items: center;

}

h2 span {
    content:"";
    flex: 1 1 auto;
    border-top: 1px solid #000;
}

html:

<h2>Title <span></span></h2>

I'm surprised nobody has mentioned the Yeoman generator angular-fullstack. It is the number one Yeoman community generator, with currently 1490 stars on the generator page vs Mean.js' 81 stars (admittedly not a fair comparison given how new MEANJS is). It is appears to be actively maintained and is in version 2.05 as I write this. Unlike MEANJS, it doesn't use Swig for templating. It can be scaffolded with passport built in.

Just try to add exit; at the end of your PHP script.

The following SQL will get you the row count of all tables in a database:

CREATE TABLE #counts
(
    table_name varchar(255),
    row_count int
)

EXEC sp_MSForEachTable @command1='INSERT #counts (table_name, row_count) SELECT ''?'', COUNT(*) FROM ?'
SELECT table_name, row_count FROM #counts ORDER BY table_name, row_count DESC
DROP TABLE #counts

The output will be a list of tables and their row counts.

If you just want the total row count across the whole database, appending:

SELECT SUM(row_count) AS total_row_count FROM #counts

will get you a single value for the total number of rows in the whole database.

I had a similar problem. My laptop ran out of battery during a git operation. Boo.

I didn't have any backups. (N.B. Ubuntu One is not a backup solution for git; it will helpfully overwrite your sane repository with your corrupted one.)

To the git wizards, if this was a bad way to fix it, please leave a comment. It did, however, work for me... at least temporarily.

Step 1: Make a backup of .git (in fact I do this in between every step that changes something, but with a new copy-to name, e.g. .git-old-1, .git-old-2, etc.):

cp -a .git .git-old

Step 2: Run git fsck --full

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
error: object file .git/objects/8b/61d0135d3195966b443f6c73fb68466264c68e is empty
fatal: loose object 8b61d0135d3195966b443f6c73fb68466264c68e (stored in .git/objects/8b/61d0135d3195966b443f6c73fb68466264c68e) is corrupt

Step 3: Remove the empty file. I figured what the heck; its blank anyway.

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ rm .git/objects/8b/61d0135d3195966b443f6c73fb68466264c68e 
rm: remove write-protected regular empty file `.git/objects/8b/61d0135d3195966b443f6c73fb68466264c68e'? y

Step 3: Run git fsck again. Continue deleting the empty files. You can also cd into the .git directory and run find . -type f -empty -delete -print to remove all empty files. Eventually git started telling me it was actually doing something with the object directories:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
Checking object directories: 100% (256/256), done.
error: object file .git/objects/e0/cbccee33aea970f4887194047141f79a363636 is empty
fatal: loose object e0cbccee33aea970f4887194047141f79a363636 (stored in .git/objects/e0/cbccee33aea970f4887194047141f79a363636) is corrupt

Step 4: After deleting all of the empty files, I eventually came to git fsck actually running:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
Checking object directories: 100% (256/256), done.
error: HEAD: invalid sha1 pointer af9fc0c5939eee40f6be2ed66381d74ec2be895f
error: refs/heads/master does not point to a valid object!
error: refs/heads/master.u1conflict does not point to a valid object!
error: 0e31469d372551bb2f51a186fa32795e39f94d5c: invalid sha1 pointer in cache-tree
dangling blob 03511c9868b5dbac4ef1343956776ac508c7c2a2
missing blob 8b61d0135d3195966b443f6c73fb68466264c68e
missing blob e89896b1282fbae6cf046bf21b62dd275aaa32f4
dangling blob dd09f7f1f033632b7ef90876d6802f5b5fede79a
missing blob caab8e3d18f2b8c8947f79af7885cdeeeae192fd
missing blob e4cf65ddf80338d50ecd4abcf1caf1de3127c229

Step 5: Try git reflog. Fail because my HEAD is broken.

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git reflog
fatal: bad object HEAD

Step 6: Google. Find this. Manually get the last two lines of the reflog:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ tail -n 2 .git/logs/refs/heads/master
f2d4c4868ec7719317a8fce9dc18c4f2e00ede04 9f0abf890b113a287e10d56b66dbab66adc1662d Nathan VanHoudnos <[email protected]> 1347306977 -0400  commit: up to p. 24, including correcting spelling of my name
9f0abf890b113a287e10d56b66dbab66adc1662d af9fc0c5939eee40f6be2ed66381d74ec2be895f Nathan VanHoudnos <[email protected]> 1347358589 -0400  commit: fixed up to page 28

Step 7: Note that from Step 6 we learned that the HEAD is currently pointing to the very last commit. So let's try to just look at the parent commit:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git show 9f0abf890b113a287e10d56b66dbab66adc1662d
commit 9f0abf890b113a287e10d56b66dbab66adc1662d
Author: Nathan VanHoudnos <nathanvan@XXXXXX>
Date:   Mon Sep 10 15:56:17 2012 -0400

    up to p. 24, including correcting spelling of my name

diff --git a/tex/MCMC-in-IRT.tex b/tex/MCMC-in-IRT.tex
index 86e67a1..b860686 100644
--- a/tex/MCMC-in-IRT.tex
+++ b/tex/MCMC-in-IRT.tex

It worked!

Step 8: So now we need to point HEAD to 9f0abf890b113a287e10d56b66dbab66adc1662d.

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git update-ref HEAD 9f0abf890b113a287e10d56b66dbab66adc1662d

Which didn't complain.

Step 9: See what fsck says:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
Checking object directories: 100% (256/256), done.
error: refs/heads/master.u1conflict does not point to a valid object!
error: 0e31469d372551bb2f51a186fa32795e39f94d5c: invalid sha1 pointer in cache-tree
dangling blob 03511c9868b5dbac4ef1343956776ac508c7c2a2
missing blob 8b61d0135d3195966b443f6c73fb68466264c68e
missing blob e89896b1282fbae6cf046bf21b62dd275aaa32f4
dangling blob dd09f7f1f033632b7ef90876d6802f5b5fede79a
missing blob caab8e3d18f2b8c8947f79af7885cdeeeae192fd
missing blob e4cf65ddf80338d50ecd4abcf1caf1de3127c229

Step 10: The invalid sha1 pointer in cache-tree seemed like it was from a (now outdated) index file (source). So I killed it and reset the repo.

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ rm .git/index
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git reset
Unstaged changes after reset:
M   tex/MCMC-in-IRT.tex
M   tex/recipe-example/build-example-plots.R
M   tex/recipe-example/build-failure-plots.R

Step 11: Looking at the fsck again...

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
Checking object directories: 100% (256/256), done.
error: refs/heads/master.u1conflict does not point to a valid object!
dangling blob 03511c9868b5dbac4ef1343956776ac508c7c2a2
dangling blob dd09f7f1f033632b7ef90876d6802f5b5fede79a

The dangling blobs are not errors. I'm not concerned with master.u1conflict, and now that it is working I don't want to touch it anymore!

Step 12: Catching up with my local edits:

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git status
# On branch master
# Changes not staged for commit:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#   modified:   tex/MCMC-in-IRT.tex
#   modified:   tex/recipe-example/build-example-plots.R
#   modified:   tex/recipe-example/build-failure-plots.R
#
< ... snip ... >
no changes added to commit (use "git add" and/or "git commit -a")


nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git commit -a -m "recovering from the git fiasco"
[master 7922876] recovering from the git fiasco
 3 files changed, 12 insertions(+), 94 deletions(-)

nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git add tex/sept2012_code/example-code-testing.R
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git commit -a -m "adding in the example code"
[master 385c023] adding in the example code
 1 file changed, 331 insertions(+)
 create mode 100644 tex/sept2012_code/example-code-testing.R

So hopefully that can be of some use to people in the future. I'm glad it worked.

Instead of using the placeholder text, you'll want to set the actual text property of the field to MM/YYYY, set the delegate of the text field and listen for this method:

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {     // update the text of the label } 

Inside that method, you can figure out what the user has typed as they type, which will allow you to update the label accordingly.

no need for the padding or the corners.

here's a sample:

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
    <gradient android:startColor="#FFFF0000" android:endColor="#80FF00FF"
        android:angle="270"/>
</shape>

based on :

https://stackoverflow.com/a/10104037/878126

I will use collection.save(the_changed_dict) this way. I've just tested this, and it still works for me. The following is quoted directly from pymongo doc.:

save(to_save[, manipulate=True[, safe=False[, **kwargs]]])

Save a document in this collection.

If to_save already has an "_id" then an update() (upsert) operation is performed and any existing document with that "_id" is overwritten. Otherwise an insert() operation is performed. In this case if manipulate is True an "_id" will be added to to_save and this method returns the "_id" of the saved document. If manipulate is False the "_id" will be added by the server but this method will return None.

Whatever algebra you are doing in Excel to create the new column could probably be done more effectively in R.

Please try the following: Read the raw file (before any excel manipulation) into R using read.csv(... stringsAsFactors=FALSE). [If that does not work, please take a look at ?read.table (which read.csv wraps), however there may be some other underlying issue].

For example:

   delim = ","  # or is it "\t" ?
   dec = "."    # or is it "," ?
   myDataFrame <- read.csv("path/to/file.csv", header=TRUE, sep=delim, dec=dec, stringsAsFactors=FALSE)

Then, let's say your numeric columns is column 4

   myDataFrame[, 4]  <- as.numeric(myDataFrame[, 4])  # you can also refer to the column by "itsName"

Or use a cast with split to uniform type of str

unique, counts = numpy.unique(str(a).split(), return_counts=True)

, do it like this example :

first creat state of the objects:

const [isSelected, setSelection] = useState({ id_1: false }, { id_2: false }, { id_3: false });

then change the value on of them:

// if the id_1 is false make it true or return it false.

onValueChange={() => isSelected.id_1 == false ? setSelection({ ...isSelected, id_1: true }) : setSelection({ ...isSelected, id_1: false })}

If you are crazy enough to be creating a new unit test framework, your test runner will probably need to catch java.lang.AssertionError thrown by any test cases.

Otherwise, see other answers.

Step 1: Client site integration

Paste this snippet before the closing </head> tag on your HTML template:

<script src='https://www.google.com/recaptcha/api.js'></script>

Paste this snippet at the end of the <form> where you want the reCAPTCHA widget to appear:

<div class="g-recaptcha" data-sitekey="your-site-key"></div>

Step 2: Server site integration

When your users submit the form where you integrated reCAPTCHA, you'll get as part of the payload a string with the name "g-recaptcha-response". In order to check whether Google has verified that user, send a POST request with these parameters:

URL : https://www.google.com/recaptcha/api/siteverify

secret : your secret key

response : The value of 'g-recaptcha-response'.

Now in action of your MVC app:

// return ActionResult if you want
    public string RecaptchaWork()
    {
        // Get recaptcha value
        var r = Request.Params["g-recaptcha-response"];
        // ... validate null or empty value if you want
        // then
        // make a request to recaptcha api
        using (var wc = new WebClient())
        {
            var validateString = string.Format(
                "https://www.google.com/recaptcha/api/siteverify?secret={0}&response={1}",
               "your_secret_key",    // secret recaptcha key
               r); // recaptcha value
             // Get result of recaptcha
            var recaptcha_result = wc.DownloadString(validateString);
            // Just check if request make by user or bot
            if (recaptcha_result.ToLower().Contains("false"))
            {
                 return "recaptcha false";
            }
        }
        // Do your work if request send from human :)
    }

Use the JavaScript RegExp object constructor.

var re = new RegExp("\\w+");
re.test("hello");

You can pass flags as a second string argument to the constructor. See the documentation for details.

That is a pretty standard use case for apply():

R> vec <- 1:10
R> DF <- data.frame(start=c(1,3,5,7), end=c(2,6,7,9))
R> DF$newcol <- apply(DF,1,function(row) mean(vec[ row[1] : row[2] ] ))
R> DF
  start end newcol
1     1   2    1.5
2     3   6    4.5
3     5   7    6.0
4     7   9    8.0
R> 

You can also use plyr if you prefer but here is no real need to go beyond functions from base R.

You can simply install a vncserver along with Firefox :)

I pushed an image, vnc/firefox, here: docker pull creack/firefox-vnc

The image has been made with this Dockerfile:

# Firefox over VNC
#
# VERSION               0.1
# DOCKER-VERSION        0.2

FROM    ubuntu:12.04
# Make sure the package repository is up to date
RUN     echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
RUN     apt-get update

# Install vnc, xvfb in order to create a 'fake' display and firefox
RUN     apt-get install -y x11vnc xvfb firefox
RUN     mkdir ~/.vnc
# Setup a password
RUN     x11vnc -storepasswd 1234 ~/.vnc/passwd
# Autostart firefox (might not be the best way to do it, but it does the trick)
RUN     bash -c 'echo "firefox" >> /.bashrc'

This will create a Docker container running VNC with the password 1234:

For Docker version 18 or newer:

docker run -p 5900:5900 -e HOME=/ creack/firefox-vnc x11vnc -forever -usepw -create

For Docker version 1.3 or newer:

docker run -p 5900 -e HOME=/ creack/firefox-vnc x11vnc -forever -usepw -create

For Docker before version 1.3:

docker run -p 5900 creack/firefox-vnc x11vnc -forever -usepw -create

To deselect all rows and cells in a DataGridView, you can use the ClearSelection method:

myDataGridView.ClearSelection()

If you don't want even the first row/cell to appear selected, you can set the CurrentCell property to Nothing/null, which will temporarily hide the focus rectangle until the control receives focus again:

myDataGridView.CurrentCell = Nothing

To determine when the user has clicked on a blank part of the DataGridView, you're going to have to handle its MouseUp event. In that event, you can HitTest the click location and watch for this to indicate HitTestInfo.Nowhere. For example:

Private Sub myDataGridView_MouseUp(ByVal sender as Object, ByVal e as System.Windows.Forms.MouseEventArgs)
    ''# See if the left mouse button was clicked
    If e.Button = MouseButtons.Left Then
        ''# Check the HitTest information for this click location
        If myDataGridView.HitTest(e.X, e.Y) = DataGridView.HitTestInfo.Nowhere Then
            myDataGridView.ClearSelection()
            myDataGridView.CurrentCell = Nothing
        End If
    End If
End Sub

Of course, you could also subclass the existing DataGridView control to combine all of this functionality into a single custom control. You'll need to override its OnMouseUp method similar to the way shown above. I also like to provide a public DeselectAll method for convenience that both calls the ClearSelection method and sets the CurrentCell property to Nothing.

(Code samples are all arbitrarily in VB.NET because the question doesn't specify a language—apologies if this is not your native dialect.)

You can do (pre-Java 8):

List<Enum> enumValues = Arrays.asList(Enum.values());

or

List<Enum> enumValues = new ArrayList<Enum>(EnumSet.allOf(Enum.class));

Using Java 8 features, you can map each constant to its name:

List<String> enumNames = Stream.of(Enum.values())
                               .map(Enum::name)
                               .collect(Collectors.toList());

I am late to this thread, but I too had a similar requirement. Since my script was constructing the request for curl dynamically, I wanted a similar structure of the command across GET, POST and PUT.

Here is what works for me

For PUT request:

curl --request PUT --url http://localhost:8080/put --header 'content-type: application/x-www-form-urlencoded' --data 'bar=baz&foo=foo1'

For POST request:

curl --request POST --url http://localhost:8080/post --header 'content-type: application/x-www-form-urlencoded' --data 'bar=baz&foo=foo1'

For GET request:

curl --request GET --url 'http://localhost:8080/get?foo=bar&foz=baz'

As far as I understand it, the HTML5 input type="number always returns input.value as a string.

Apparently, input.valueAsNumber returns the current value as a floating point number. You could use this to return a value you want.

See http://diveintohtml5.info/forms.html#type-number

Delete Without Rebooting

The OP's question indeed has been answered extensively, including how to avoid rebooting through powershell, vbscript, or you name it.

However, if you need to stick to cmd commands only and don't have the luxury of being able to call powershell or vbscript, you could use the following approach:

rem remove from current cmd instance
  SET FOOBAR=
rem remove from the registry if it's a user variable
  REG delete HKCU\Environment /F /V FOOBAR
rem remove from the registry if it's a system variable
  REG delete "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /F /V FOOBAR
rem tell Explorer.exe to reload the environment from the registry
  SETX DUMMY ""
rem remove the dummy
  REG delete HKCU\Environment /F /V DUMMY

So the magic here is that by using "setx" to assign something to a variable you don't need (in my example DUMMY), you force Explorer.exe to reread the variables from the registry, without needing powershell. You then clean up that dummy, and even though that one will stay in Explorer's environment for a little while longer, it will probably not harm anyone.

Or if after deleting variables you need to set new ones, then you don't even need any dummy. Just using SETX to set the new variables will automatically clear the ones you just removed from any new cmd tasks that might get started.

Background information: I just used this approach successfully to replace a set of user variables by system variables of the same name on all of the computers at my job, by modifying an existing cmd script. There are too many computers to do it manually, nor was it practical to copy extra powershell or vbscripts to all of them. The reason I urgently needed to replace user with system variables was that user variables get synchronized in roaming profiles (didn't think about that), so multiple machines using the same windows login but needing different values, got mixed up.

You are declaring button1 in main method so you can not access it in actionPerform. You should make it global in class.

 JButton button1;
 public static void main(String[] args) {

    JFrame calcFrame = new JFrame();

    calcFrame.setSize(100, 100);
    calcFrame.setVisible(true);

    button1 = new JButton("1");
    button1.addActionListener(this);

    calcFrame.add(button1);
}

public void actionPerformed(ActionEvent e) {
    if(e.getSource() == button1)
}

This is the JSON String we want to decode :

{ 
   "stats": { 
       "sdr": "aa:bb:cc:dd:ee:ff", 
       "rcv": "aa:bb:cc:dd:ee:ff", 
       "time": "UTC in millis", 
       "type": 1, 
       "subt": 1, 
       "argv": [
          {"1": 2}, 
          {"2": 3}
       ]}
}

I store this string under the variable name "sJSON" Now, this is how to decode it :)

// Creating a JSONObject from a String 
JSONObject nodeRoot  = new JSONObject(sJSON); 

// Creating a sub-JSONObject from another JSONObject
JSONObject nodeStats = nodeRoot.getJSONObject("stats");

// Getting the value of a attribute in a JSONObject
String sSDR = nodeStats.getString("sdr");

I run into exactly the same problem and was following this tutorial https://github.com/jverkoey/iOS-Framework#faq

The way that I made this work is after putting into the scripts into your Aggregate's Build Phase, before you compile, make sure you compile it using an iphone simulator (I used iPhone6) instead of IOS Device.

which will give me 2 slices: armv7 and x86_64, then drag and drop it into new project is working fine for me.

1. Go to Xcode preferences by clicking on "Xcode" in the left hand side upper corner.

2. Select "Text Editing".

3. Select "Show: Line numbers" and click on check box for enable it.

4. Close it.

Then you will see the line number in Xcode.

I usualy would enter the path like this ....

FileInfo fi = new FileInfo(@"C:\Program Files (x86)\test software\myapp\demo.exe"); 

Did you register the @ at the beginning of the string? ;-)

I think you don't have a grunt.js file in your project directory. Use grunt:init, which gives you options such as jQuery, node,commonjs. Select what you want, then proceed. This really works. For more information you can visit this.

Do this:

 1. npm install -g grunt
 2. grunt:init  ( you will get following options ):
      jquery: A jQuery plugin
      node: A Node module
      commonjs: A CommonJS module
      gruntplugin: A Grunt plugin
      gruntfile: A Gruntfile (grunt.js)
 3 .grunt init:jquery (if you want to create a jQuery related project.).

It should work.

Solution for v1.4:

1. npm install -g grunt-cli
2. npm init
   fill all details and it will create a package.json file.
3. npm install grunt (for grunt dependencies.)

Edit : Updated solution for new versions:

 npm install grunt --save-dev

Use "@null" . It worked for me.

<ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:srcCompat="@drawable/bkash"
    android:id="@+id/bid1"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:background="@null" />

You can check in the system 'table column mapping' table

SELECT count(*)
  FROM Sys.Columns c
  JOIN Sys.Tables t ON c.Object_Id = t.Object_Id
 WHERE upper(t.Name) = 'TAGS'
   AND upper(c.NAME) = 'MODIFIEDBYUSER'

It is a duplicate of this question, with an answer that contains a time measurement of the different methods.

Conclusion: Use [void] or > $null.

Use "\\" to escape the \ character.

Yeah it is possible with FileReader, I have already done an example of this, here's the code:

<!DOCTYPE html>
<html>
  <head>
    <title>Read File (via User Input selection)</title>
    <script type="text/javascript">
    var reader; //GLOBAL File Reader object for demo purpose only

    /**
     * Check for the various File API support.
     */
    function checkFileAPI() {
        if (window.File && window.FileReader && window.FileList && window.Blob) {
            reader = new FileReader();
            return true; 
        } else {
            alert('The File APIs are not fully supported by your browser. Fallback required.');
            return false;
        }
    }

    /**
     * read text input
     */
    function readText(filePath) {
        var output = ""; //placeholder for text output
        if(filePath.files && filePath.files[0]) {           
            reader.onload = function (e) {
                output = e.target.result;
                displayContents(output);
            };//end onload()
            reader.readAsText(filePath.files[0]);
        }//end if html5 filelist support
        else if(ActiveXObject && filePath) { //fallback to IE 6-8 support via ActiveX
            try {
                reader = new ActiveXObject("Scripting.FileSystemObject");
                var file = reader.OpenTextFile(filePath, 1); //ActiveX File Object
                output = file.ReadAll(); //text contents of file
                file.Close(); //close file "input stream"
                displayContents(output);
            } catch (e) {
                if (e.number == -2146827859) {
                    alert('Unable to access local files due to browser security settings. ' + 
                     'To overcome this, go to Tools->Internet Options->Security->Custom Level. ' + 
                     'Find the setting for "Initialize and script ActiveX controls not marked as safe" and change it to "Enable" or "Prompt"'); 
                }
            }       
        }
        else { //this is where you could fallback to Java Applet, Flash or similar
            return false;
        }       
        return true;
    }   

    /**
     * display content using a basic HTML replacement
     */
    function displayContents(txt) {
        var el = document.getElementById('main'); 
        el.innerHTML = txt; //display output in DOM
    }   
</script>
</head>
<body onload="checkFileAPI();">
    <div id="container">    
        <input type="file" onchange='readText(this)' />
        <br/>
        <hr/>   
        <h3>Contents of the Text file:</h3>
        <div id="main">
            ...
        </div>
    </div>
</body>
</html>

It's also possible to do the same thing to support some older versions of IE (I think 6-8) using the ActiveX Object, I had some old code which does that too but its been a while so I'll have to dig it up I've found a solution similar to the one I used courtesy of Jacky Cui's blog and edited this answer (also cleaned up code a bit). Hope it helps.

Lastly, I just read some other answers that beat me to the draw, but as they suggest, you might be looking for code that lets you load a text file from the server (or device) where the JavaScript file is sitting. If that's the case then you want AJAX code to load the document dynamically which would be something as follows:

<!DOCTYPE html>
<html>
<head><meta charset="utf-8" />
<title>Read File (via AJAX)</title>
<script type="text/javascript">
var reader = new XMLHttpRequest() || new ActiveXObject('MSXML2.XMLHTTP');

function loadFile() {
    reader.open('get', 'test.txt', true); 
    reader.onreadystatechange = displayContents;
    reader.send(null);
}

function displayContents() {
    if(reader.readyState==4) {
        var el = document.getElementById('main');
        el.innerHTML = reader.responseText;
    }
}

</script>
</head>
<body>
<div id="container">
    <input type="button" value="test.txt"  onclick="loadFile()" />
    <div id="main">
    </div>
</div>
</body>
</html>

One Liner implementation:

a=[1,3]
b=[1,2,3,4]
all(i in b for i in a)

In case someone is still looking for the answer, this worked for me:

=COUNTIF(A2:A51, "*" & B1 & "*")

B1 containing the iPad string.

You need to set 100% height on the parent element.

the reason why it returns < filter object > is that, filter is class instead of built-in function.

help(filter) you will get following: Help on class filter in module builtins:

class filter(object)
 |  filter(function or None, iterable) --> filter object
 |  
 |  Return an iterator yielding those items of iterable for which function(item)
 |  is true. If function is None, return the items that are true.
 |  
 |  Methods defined here:
 |  
 |  __getattribute__(self, name, /)
 |      Return getattr(self, name).
 |  
 |  __iter__(self, /)
 |      Implement iter(self).
 |  
 |  __new__(*args, **kwargs) from builtins.type
 |      Create and return a new object.  See help(type) for accurate signature.
 |  
 |  __next__(self, /)
 |      Implement next(self).
 |  
 |  __reduce__(...)
 |      Return state information for pickling.

If you throw an exception without a variable (the second example) the StackTrace will include the original method that threw the exception.

In the first example the StackTrace will be changed to reflect the current method.

Example:

static string ReadAFile(string fileName) {
    string result = string.Empty;
    try {
        result = File.ReadAllLines(fileName);
    } catch(Exception ex) {
        throw ex; // This will show ReadAFile in the StackTrace
        throw;    // This will show ReadAllLines in the StackTrace
    }

In php.ini file

change this

;extension=php_mysql.dll

into

extension=php_mysql.dll

1. We can use aggregate function with HAVING clause not by WHERE clause e.g. min,max,avg.

2. WHERE clause eliminates the record tuple by tuple HAVING clause eliminates entire group from the collection of group

Mostly HAVING is used when you have groups of data and WHERE is used when you have data in rows.

You don't need the CELL() part of your formulas:

=INDIRECT(ADDRESS(B1,B2))

or

=OFFSET($A$1, B1-1,B2-1)

will both work. Note that both INDIRECT and OFFSET are volatile functions. Volatile functions can slow down calculation because they are calculated at every single recalculation.

all(getattr(someTime,x)==getattr(today(),x) for x in ['year','month','day'])

One should compare using .date(), but I leave this method as an example in case one wanted to, for example, compare things by month or by minute, etc.

Make the extensions you want one string i.e ".mp3.jpg.wma.wmf" and then check if each file contains the extension you want. This works with .net 2.0 as it does not use LINQ.

string myExtensions=".jpg.mp3";

string[] files=System.IO.Directory.GetFiles("C:\myfolder");

foreach(string file in files)
{
   if(myExtensions.ToLower().contains(System.IO.Path.GetExtension(s).ToLower()))
   {
      //this file has passed, do something with this file

   }
}

The advantage with this approach is you can add or remove extensions without editing the code i.e to add png images, just write myExtensions=".jpg.mp3.png".

To iterate through all the inputs in a form you can do this:

$("form#formID :input").each(function(){
 var input = $(this); // This is the jquery object of the input, do what you will
});

This uses the jquery :input selector to get ALL types of inputs, if you just want text you can do :

$("form#formID input[type=text]")//...

etc.

I ran into a similar limitation with DataTriggers, and it would seem that you can only check for equality. The closest thing I've seen that might help you is a technique for doing other types of comparisons other than equality.

This blog post describes how to do comparisons such as LT, GT, etc in a DataTrigger.

This limitation of the DataTrigger can be worked around to some extent by using a Converter to massage the data into a special value you can then compare against, as suggested in Robert Macnee's answer.

I believe this line in the web.config will set the max upload size:

<system.web>

        <httpRuntime maxRequestLength="600000"/>
</system.web>

Simplest of all solutions:

Add the below code in CSS:

.tableClassName tbody {
  display: block;
  max-height: 200px;
  overflow-y: scroll;
}

.tableClassName thead, .tableClassName tbody tr {
  display: table;
  width: 100%;
  table-layout: fixed;
}
.tableClassName thead {
  width: calc( 100% - 1.1em );
}

1.1 em is the average width of the scroll bar, please modify this if needed.

Try this

$objPHPExcel->getActiveSheet()->mergeCells('A1:C1');

From the doc for path.resolve:

The resulting path is normalized and trailing slashes are removed unless the path is resolved to the root directory.

But path.join keeps trailing slashes

So

__dirname = '/';
path.resolve(__dirname, 'foo/'); // '/foo'
path.join(__dirname, 'foo/'); // '/foo/'

This should do it:

^/\b([a-z0-9]+)\b(?<!ignoreme|ignoreme2|ignoreme3)

You can add as much ignored words as you like, here is a simple PHP implementation:

$ignoredWords = array('ignoreme', 'ignoreme2', 'ignoreme...');

preg_match('~^/\b([a-z0-9]+)\b(?<!' . implode('|', array_map('preg_quote', $ignoredWords)) . ')~i', $string);

Naïve datetime versus aware datetime

Default datetime objects are said to be "naïve": they keep time information without the time zone information. Think about naïve datetime as a relative number (ie: +4) without a clear origin (in fact your origin will be common throughout your system boundary).

In contrast, think about aware datetime as absolute numbers (ie: 8) with a common origin for the whole world.

Without timezone information you cannot convert the "naive" datetime towards any non-naive time representation (where does +4 targets if we don't know from where to start ?). This is why you can't have a datetime.datetime.toutctimestamp() method. (cf: http://bugs.python.org/issue1457227)

To check if your datetime dt is naïve, check dt.tzinfo, if None, then it's naïve:

datetime.now()        ## DANGER: returns naïve datetime pointing on local time
datetime(1970, 1, 1)  ## returns naïve datetime pointing on user given time

I have naïve datetimes, what can I do ?

You must make an assumption depending on your particular context: The question you must ask yourself is: was your datetime on UTC ? or was it local time ?

• If you were using UTC (you are out of trouble):

  import calendar
  
  def dt2ts(dt):
      """Converts a datetime object to UTC timestamp
  
      naive datetime will be considered UTC.
  
      """
  
      return calendar.timegm(dt.utctimetuple())
  

• If you were NOT using UTC, welcome to hell.

  You have to make your datetime non-naïve prior to using the former function, by giving them back their intended timezone.

  You'll need the name of the timezone and the information about if DST was in effect when producing the target naïve datetime (the last info about DST is required for cornercases):

  import pytz     ## pip install pytz
  
  mytz = pytz.timezone('Europe/Amsterdam')             ## Set your timezone
  
  dt = mytz.normalize(mytz.localize(dt, is_dst=True))  ## Set is_dst accordingly
  

  Consequences of not providing is_dst:

  Not using is_dst will generate incorrect time (and UTC timestamp) if target datetime was produced while a backward DST was put in place (for instance changing DST time by removing one hour).

  Providing incorrect is_dst will of course generate incorrect time (and UTC timestamp) only on DST overlap or holes. And, when providing also incorrect time, occuring in "holes" (time that never existed due to forward shifting DST), is_dst will give an interpretation of how to consider this bogus time, and this is the only case where .normalize(..) will actually do something here, as it'll then translate it as an actual valid time (changing the datetime AND the DST object if required). Note that .normalize() is not required for having a correct UTC timestamp at the end, but is probably recommended if you dislike the idea of having bogus times in your variables, especially if you re-use this variable elsewhere.

  and AVOID USING THE FOLLOWING: (cf: Datetime Timezone conversion using pytz)

  dt = dt.replace(tzinfo=timezone('Europe/Amsterdam'))  ## BAD !!
  

  Why? because .replace() replaces blindly the tzinfo without taking into account the target time and will choose a bad DST object. Whereas .localize() uses the target time and your is_dst hint to select the right DST object.

OLD incorrect answer (thanks @J.F.Sebastien for bringing this up):

Hopefully, it is quite easy to guess the timezone (your local origin) when you create your naive datetime object as it is related to the system configuration that you would hopefully NOT change between the naive datetime object creation and the moment when you want to get the UTC timestamp. This trick can be used to give an imperfect question.

By using time.mktime we can create an utc_mktime:

def utc_mktime(utc_tuple):
    """Returns number of seconds elapsed since epoch

    Note that no timezone are taken into consideration.

    utc tuple must be: (year, month, day, hour, minute, second)

    """

    if len(utc_tuple) == 6:
        utc_tuple += (0, 0, 0)
    return time.mktime(utc_tuple) - time.mktime((1970, 1, 1, 0, 0, 0, 0, 0, 0))

def datetime_to_timestamp(dt):
    """Converts a datetime object to UTC timestamp"""

    return int(utc_mktime(dt.timetuple()))

You must make sure that your datetime object is created on the same timezone than the one that has created your datetime.

This last solution is incorrect because it makes the assumption that the UTC offset from now is the same than the UTC offset from EPOCH. Which is not the case for a lot of timezones (in specific moment of the year for the Daylight Saving Time (DST) offsets).

for me this how I solve it:

• go to the build path of the current project

under Libraries

• select the "JRE System Library [jdk1.8xxx]"
• click edit
• and select either "Workspace default JRE(jdk1.8xx)" OR Alternate JRE
• Click finish
• Click OK

Note: make sure that in Eclipse / Preferences (NOT the project) / Java / Installed JRE ,that the jdk points to the JDK folder not the JRE C:\Program Files\Java\jdk1.8.0_74

Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.

Have in mind also that,

large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.

-- Announcement of YUI development being ceased

That said, below are a number of Ext JS alternatives currently available.

Leading client widget libraries

1. Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.

   Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.

   Sandbox / demo • GitHub • Docs

2. Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.

   

   Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.

   Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.

   The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).

   The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.

   Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.

   Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples

3. react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.

4. kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).

   

   Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.

   A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.

   [Wikipedia] • GitHub/Telerik • Demos • Playground • Tools

5. OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.

   

   The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.

   The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.

   Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO

6. DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.

   

   Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.

7. Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.

   

8. Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).

   The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.

9. PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.

10. qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).

    Mobile themes look modern but desktop themes look old (gradients).

    

    Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community

11. jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.

12. angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).

13. DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.

    

    Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.

    Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.

    With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.

    Wikipedia • GitHub • Themes • Demos • Desktop widgets • SO

14. Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.

15. The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM

16. Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.

17. CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.

18. ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.

19. Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.

20. CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.

Widgets - Demo Apps - Examples - GitHub

Full-stack frameworks

1. SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.

2. Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:

   • Wakanda Server (server-side JavaScript (custom engine) + open-source NoSQL database)
   • desktop IDE and WYSIWYG editor for tables, forms, reports

   • Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile

     Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.

3. Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.

4. SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.

5. Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework

6. Backbase - portal software

7. Shiny - front-end library on top R, with visualization, layout and control widgets

8. ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.

CSS libraries + minimal widgets

These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.

1. Bootstrap

2. Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library

3. UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.

Libraries using HTML Canvas

Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.

1. Zebra - demos

No longer developed as of Dec 2014

1. Yahoo! User Interface - YUI, launched in 2005, but no longer maintained by the core contributors - see the announcement, which highlights reasons why large UI widget libraries are perceived as walled gardens that developers don't want to be locked into.
2. echo3, GitHub. Supports writing either server-side Java applications that don't require developer knowledge of HTML, HTTP, or JavaScript, or client-side JavaScript-based applications do not require a server, but can communicate with one via AJAX. Last update: July 2013.
3. ampleSDK
4. Simpler widgets livepipe.net
5. JxLib
6. rialto
7. Simple UI kit
8. Prototype-ui

Other lists

• Best of JS - component toolkits
• Wikipedia's Comparison of JavaScript frameworks
• Wikipedia's list of GUI-related JavaScript libraries
• jqueryuiwidgets.com - detailed jQuery widgets feature comparison

Access requires parentheses in the FROM clause for queries which include more than one join. Try it this way ...

FROM
    ((tbl_employee
    INNER JOIN tbl_netpay
    ON tbl_employee.emp_id = tbl_netpay.emp_id)
    INNER JOIN tbl_gross
    ON tbl_employee.emp_id = tbl_gross.emp_ID)
    INNER JOIN tbl_tax
    ON tbl_employee.emp_id = tbl_tax.emp_ID;

If possible, use the Access query designer to set up your joins. The designer will add parentheses as required to keep the db engine happy.

If you need to use IE8, you can try this JavaScript library for vector graphics. It is like solving the "canvas" and "SVG" incompatibilities of IE8 at the same time.

Raphaël

I have just try it in a fast example and it works correctly. I don't know how legible is the source code but I hope it helps you. As they said in its site, the library is compatible with very old explorers.

Raphaël currently supports Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ and Internet Explorer 6.0+.

Just for completion: All the answers above are going for a shallow copy - keeping the reference of the original objects. I you want a deep copy, your (reference-) class in the list have to implement a clone / copy method, which provides a deep copy of a single object. Then you can use:

newList.addAll(oldList.stream().map(s->s.clone()).collect(Collectors.toList()));

A static function, unlike a regular (instance) function, is not associated with an instance of the class.

A static class is a class which can only contain static members, and therefore cannot be instantiated.

For example:

class SomeClass {
    public int InstanceMethod() { return 1; }
    public static int StaticMethod() { return 42; }
}

In order to call InstanceMethod, you need an instance of the class:

SomeClass instance = new SomeClass();
instance.InstanceMethod();   //Fine
instance.StaticMethod();     //Won't compile

SomeClass.InstanceMethod();  //Won't compile
SomeClass.StaticMethod();    //Fine

Like you I also faced many problems implementing OCR in Android, but after much Googling I found the solution, and it surely is the best example of OCR.

Let me explain using step-by-step guidance.

First, download the source code from https://github.com/rmtheis/tess-two.

Import all three projects. After importing you will get an error. To solve the error you have to create a res folder in the tess-two project

First, just create res folder in tess-two by tess-two->RightClick->new Folder->Name it "res"

After doing this in all three project the error should be gone.

Now download the source code from https://github.com/rmtheis/android-ocr, here you will get best example.

Now you just need to import it into your workspace, but first you have to download android-ndk from this site:

http://developer.android.com/tools/sdk/ndk/index.html i have windows 7 - 32 bit PC so I have download http://dl.google.com/android/ndk/android-ndk-r9-windows-x86.zip this file

Now extract it suppose I have extract it into E:\Software\android-ndk-r9 so I will set this path on Environment Variable

Right Click on MyComputer->Property->Advance-System-Settings->Advance->Environment Variable-> find PATH on second below Box and set like path like below picture

done it

Now open cmd and go to on D:\Android Workspace\tess-two like below

If you have successfully set up environment variable of NDK then just type ndk-build just like above picture than enter you will not get any kind of error and all file will be compiled successfully:

Now download other source code also from https://github.com/rmtheis/tess-two , and extract and import it and give it name OCRTest, like in my PC which is in D:\Android Workspace\OCRTest

Import test-two in this and run OCRTest and run it; you will get the best example of OCR.

I would suggest instead of creating a new table, you just use a view that combines the two tables, this way if any of the data in table 1 or table 2 changes, you don't need to update the third table:

CREATE VIEW dbo.YourView
AS
    SELECT  t1.Name, t1.Age, t1.Sex, t1.City, t1.ID, t2.Number
    FROM    Table1 t1
            INNER JOIN Table2 t2
                ON t1.ID = t2.ID;

If you could have records in one table, and not in the other, then you would need to use a full join:

CREATE VIEW dbo.YourView
AS
    SELECT  t1.Name, t1.Age, t1.Sex, t1.City, ID = ISNULL(t1.ID, t2.ID), t2.Number
    FROM    Table1 t1
            FULL JOIN Table2 t2
                ON t1.ID = t2.ID;

If you know all records will be in table 1 and only some in table 2, then you should use a LEFT JOIN:

CREATE VIEW dbo.YourView
AS
    SELECT  t1.Name, t1.Age, t1.Sex, t1.City, t1.ID, t2.Number
    FROM    Table1 t1
            LEFT JOIN Table2 t2
                ON t1.ID = t2.ID;

If you know all records will be in table 2 and only some in table 2 then you could use a RIGHT JOIN

CREATE VIEW dbo.YourView
AS
    SELECT  t1.Name, t1.Age, t1.Sex, t1.City, t2.ID, t2.Number
    FROM    Table1 t1
            RIGHT JOIN Table2 t2
                ON t1.ID = t2.ID;

Or just reverse the order of the tables and use a LEFT JOIN (I find this more logical than a right join but it is personal preference):

CREATE VIEW dbo.YourView
AS
    SELECT  t1.Name, t1.Age, t1.Sex, t1.City, t2.ID, t2.Number
    FROM    Table2 t2
            LEFT JOIN Table1 t1
                ON t1.ID = t2.ID;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;

@Entity
@Table(name="empTable")
public class Employee implements Serializable{
private static final long serialVersionUID = 1L;
private int id;
private String empName;

List<Address> addList=new ArrayList<Address>();


@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="emp_id")
public int getId() {
    return id;
}
public void setId(int id) {
    this.id = id;
}
public String getEmpName() {
    return empName;
}
public void setEmpName(String empName) {
    this.empName = empName;
}

@OneToMany(mappedBy="employee",cascade=CascadeType.ALL)
public List<Address> getAddList() {
    return addList;
}

public void setAddList(List<Address> addList) {
    this.addList = addList;
}
}

We have two entities Employee and Address with One to Many relationship.

import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Entity
@Table(name="address")
public class Address implements Serializable{

private static final long serialVersionUID = 1L;

private int address_id;
private String address;
Employee employee;

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public int getAddress_id() {
    return address_id;
}
public void setAddress_id(int address_id) {
    this.address_id = address_id;
}
public String getAddress() {
    return address;
}
public void setAddress(String address) {
    this.address = address;
}

@ManyToOne
@JoinColumn(name="emp_id")
public Employee getEmployee() {
    return employee;
}
public void setEmployee(Employee employee) {
    this.employee = employee;
}
}

By this way we can implement inner join between two tables

import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;

public class Main {

public static void main(String[] args) {
    saveEmployee();

    retrieveEmployee();

}

private static void saveEmployee() {
    Employee employee=new Employee();
    Employee employee1=new Employee();
    Employee employee2=new Employee();
    Employee employee3=new Employee();

    Address address=new Address();
    Address address1=new Address();
    Address address2=new Address();
    Address address3=new Address();

    address.setAddress("1485,Sector 42 b");
    address1.setAddress("1485,Sector 42 c");
    address2.setAddress("1485,Sector 42 d");
    address3.setAddress("1485,Sector 42 a");

    employee.setEmpName("Varun");
    employee1.setEmpName("Krishan");
    employee2.setEmpName("Aasif");
    employee3.setEmpName("Dut");

    address.setEmployee(employee);
    address1.setEmployee(employee1);
    address2.setEmployee(employee2);
    address3.setEmployee(employee3);

    employee.getAddList().add(address);
    employee1.getAddList().add(address1);
    employee2.getAddList().add(address2);
    employee3.getAddList().add(address3);

    Session session=HibernateUtil.getSessionFactory().openSession();

    session.beginTransaction();

    session.save(employee);
    session.save(employee1);
    session.save(employee2);
    session.save(employee3);
    session.getTransaction().commit();
    session.close();
}

private static void retrieveEmployee() {
    try{

    String sqlQuery="select e from Employee e inner join e.addList";

    Session session=HibernateUtil.getSessionFactory().openSession();

    Query query=session.createQuery(sqlQuery);

    List<Employee> list=query.list();

     list.stream().forEach((p)->{System.out.println(p.getEmpName());});     
    session.close();
    }catch(Exception e){
        e.printStackTrace();
    }
}
}

I have used Java 8 for loop for priting the names. Make sure you have jdk 1.8 with tomcat 8. Also add some more records for better understanding.

 public class HibernateUtil {
 private static SessionFactory sessionFactory ;
 static {
    Configuration configuration = new Configuration();

    configuration.addAnnotatedClass(Employee.class);
    configuration.addAnnotatedClass(Address.class);
                  configuration.setProperty("connection.driver_class","com.mysql.jdbc.Driver");
    configuration.setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/hibernate");                                
    configuration.setProperty("hibernate.connection.username", "root");     
    configuration.setProperty("hibernate.connection.password", "root");
    configuration.setProperty("dialect", "org.hibernate.dialect.MySQLDialect");
    configuration.setProperty("hibernate.hbm2ddl.auto", "update");
    configuration.setProperty("hibernate.show_sql", "true");
    configuration.setProperty(" hibernate.connection.pool_size", "10");


   // configuration
    StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
    sessionFactory = configuration.buildSessionFactory(builder.build());
 }
public static SessionFactory getSessionFactory() {
    return sessionFactory;
}
} 

The current answers are a bit out of date so, for clarity:

The short answer is:

1. Do a bare clone of the public repo.
2. Create a new private one.
3. Do a mirror push to the new private one.

This is documented on GitHub: duplicating-a-repository

Also you can try to use

display:inline-block;

if you would like the span element to align horizontally.

Incase you would like to align span elements vertically, just use

 display:block;

Maybe you find this simpler

select * from (
    select ssn, sum(time) from downloads
    group by ssn
    order by sum(time) desc
) where rownum <= 10 --top 10 downloaders

Regards
K

Adding my two cents for those searching for "Ensure that the org.eclipse.core.runtime bundle is resolved and started":

Adding "arbitrary" bundles to the list of bundles just because it seems that they are missing is not always the best solution. Sometimes it can get quite frustrating, because those new plugins might depend on other missing bundles, which need even more bundles and so on...

So, before adding a new dependency to the list of required bundles, make sure you understand why the bundle is needed (the debugger is your friend!).

This question here doesn't provide enough information to make this a valid answer in all cases, but if you encounter the message that the org.eclipse.core.runtime is missing, try setting the eclipse.application.launchDefault system property to false, especially if you try to run an application which is not an "eclipse application" (but maybe just a headless runtime on top of equinox).

This link might come in handy: http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fmisc%2Fruntime-options.html, look for the eclipse.application.launchDefault system property.

As pointed out by Aaron Hall's comment:

Since you can't subclass NoneType and since None is a singleton, isinstance should not be used to detect None - instead you should do as the accepted answer says, and use is None or is not None.

Original Answer:

The simplest way however, without the extra line in addition to cardamom's answer is probably:
isinstance(x, type(None))

So how can I question a variable that is a NoneType? I need to use if method

Using isinstance() does not require an is within the if-statement:

if isinstance(x, type(None)): 
    #do stuff

Additional information
You can also check for multiple types in one isinstance() statement as mentioned in the documentation. Just write the types as a tuple.

isinstance(x, (type(None), bytes))

MediaStore.Images.Media.insertImage(getContentResolver(), yourBitmap, yourTitle , yourDescription);

The former code will add the image at the end of the gallery. If you want to modify the date so it appears at the beginning or any other metadata, see the code below (Cortesy of S-K, samkirton):

https://gist.github.com/samkirton/0242ba81d7ca00b475b9

/**
 * Android internals have been modified to store images in the media folder with 
 * the correct date meta data
 * @author samuelkirton
 */
public class CapturePhotoUtils {

    /**
     * A copy of the Android internals  insertImage method, this method populates the 
     * meta data with DATE_ADDED and DATE_TAKEN. This fixes a common problem where media 
     * that is inserted manually gets saved at the end of the gallery (because date is not populated).
     * @see android.provider.MediaStore.Images.Media#insertImage(ContentResolver, Bitmap, String, String)
     */
    public static final String insertImage(ContentResolver cr, 
            Bitmap source, 
            String title, 
            String description) {

        ContentValues values = new ContentValues();
        values.put(Images.Media.TITLE, title);
        values.put(Images.Media.DISPLAY_NAME, title);
        values.put(Images.Media.DESCRIPTION, description);
        values.put(Images.Media.MIME_TYPE, "image/jpeg");
        // Add the date meta data to ensure the image is added at the front of the gallery
        values.put(Images.Media.DATE_ADDED, System.currentTimeMillis());
        values.put(Images.Media.DATE_TAKEN, System.currentTimeMillis());

        Uri url = null;
        String stringUrl = null;    /* value to be returned */

        try {
            url = cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

            if (source != null) {
                OutputStream imageOut = cr.openOutputStream(url);
                try {
                    source.compress(Bitmap.CompressFormat.JPEG, 50, imageOut);
                } finally {
                    imageOut.close();
                }

                long id = ContentUris.parseId(url);
                // Wait until MINI_KIND thumbnail is generated.
                Bitmap miniThumb = Images.Thumbnails.getThumbnail(cr, id, Images.Thumbnails.MINI_KIND, null);
                // This is for backward compatibility.
                storeThumbnail(cr, miniThumb, id, 50F, 50F,Images.Thumbnails.MICRO_KIND);
            } else {
                cr.delete(url, null, null);
                url = null;
            }
        } catch (Exception e) {
            if (url != null) {
                cr.delete(url, null, null);
                url = null;
            }
        }

        if (url != null) {
            stringUrl = url.toString();
        }

        return stringUrl;
    }

    /**
     * A copy of the Android internals StoreThumbnail method, it used with the insertImage to
     * populate the android.provider.MediaStore.Images.Media#insertImage with all the correct
     * meta data. The StoreThumbnail method is private so it must be duplicated here.
     * @see android.provider.MediaStore.Images.Media (StoreThumbnail private method)
     */
    private static final Bitmap storeThumbnail(
            ContentResolver cr,
            Bitmap source,
            long id,
            float width, 
            float height,
            int kind) {

        // create the matrix to scale it
        Matrix matrix = new Matrix();

        float scaleX = width / source.getWidth();
        float scaleY = height / source.getHeight();

        matrix.setScale(scaleX, scaleY);

        Bitmap thumb = Bitmap.createBitmap(source, 0, 0,
            source.getWidth(),
            source.getHeight(), matrix,
            true
        );

        ContentValues values = new ContentValues(4);
        values.put(Images.Thumbnails.KIND,kind);
        values.put(Images.Thumbnails.IMAGE_ID,(int)id);
        values.put(Images.Thumbnails.HEIGHT,thumb.getHeight());
        values.put(Images.Thumbnails.WIDTH,thumb.getWidth());

        Uri url = cr.insert(Images.Thumbnails.EXTERNAL_CONTENT_URI, values);

        try {
            OutputStream thumbOut = cr.openOutputStream(url);
            thumb.compress(Bitmap.CompressFormat.JPEG, 100, thumbOut);
            thumbOut.close();
            return thumb;
        } catch (FileNotFoundException ex) {
            return null;
        } catch (IOException ex) {
            return null;
        }
    }
}

Another possibility is to use bit sets, for which there is at least one package or you can use the built-in big package. In this case, basically you need to define a way to convert your object to an index.

In your html file you write:

<div class="banner">
  Center content
</div>

your css file you write:

.banner {
display: block;
margin: auto;
width: 100px;
height: 50px;
}

works for me.

If you want to only download dependencies without doing anything else, then it's:

mvn dependency:resolve

Or to download a single dependency:

mvn dependency:get -Dartifact=groupId:artifactId:version

If you need to download from a specific repository, you can specify that with -DrepoUrl=...

I was using datalist and I was getting the same error for my push button. I just use IsPostBack to check and fill my controls and the problem is solved! Great!!!

I needed a solution with a retry. This code will run until the process is found and then kill it. You can set a timeout or anything if you like.

Notes:

• The ".exe" is mandatory
• You could make a file runnable with parameters, version below

    :: Set programm you want to kill
    :: Fileextension is mandatory
    SET KillProg=explorer.exe

    :: Set waiting time between 2 requests in seconds
    SET /A "_wait=3"

    :ProcessNotFound
        tasklist /NH /FI "IMAGENAME eq %KillProg%" | FIND /I "%KillProg%"
        IF "%ERRORLEVEL%"=="0" (
            TASKKILL.EXE /F /T /IM %KillProg%
        ) ELSE (
            timeout /t %_wait%
            GOTO :ProcessNotFound
        )

taskkill.bat:

    :: Get program name from argumentlist
    IF NOT "%~1"=="" (
        SET "KillProg=%~1"
    ) ELSE (
        ECHO Usage: "%~nx0" ProgramToKill.exe & EXIT /B
    )

    :: Set waiting time between 2 requests in seconds
    SET /A "_wait=3"

    :ProcessNotFound
        tasklist /NH /FI "IMAGENAME eq %KillProg%" | FIND /I "%KillProg%"
        IF "%ERRORLEVEL%"=="0" (
            TASKKILL.EXE /F /T /IM %KillProg%
        ) ELSE (
            timeout /t %_wait%
            GOTO :ProcessNotFound
        )

Run with .\taskkill.bat ProgramToKill.exe

From my experience, I used GridLayout.

    thePanel.setLayout(new GridLayout(a,b,c,d));

a = row number, b = column number, c = horizontal gap, d = vertical gap.

For example, if I want to create panel with:

• unlimited row (set a = 0)
• 1 column (set b = 1)
• vertical gap= 3 (set d = 3)

The code is below:

    thePanel.setLayout(new GridLayout(0,1,0,3));

This method is useful when you want to add JScrollPane to your JPanel. Size of the JPanel inside JScrollPane will automatically changes when you add some components on it, so the JScrollPane will automatically reset the scroll bar.

It appears that this has been reported as a bug, but has been closed as "Not Reproducible". One suggestiong from the Microsoft supporter is to redownload and reinstall:

Please try downloading the complete ISO from http://www.microsoft.com/express/Downloads/#2010-All, mount it as virtual drive. Then execute Visual C# setup from the ISO media and select an option to remove the product. Once the Visual C# has been uninstalled, please try installing it again from the ISO media.

It sounds a bit far fetched to me, but you might want to give it a try.

If that does not help you, I would suggest that you either post a new bug report to Microsoft or vote to reopen the existing one (I am not sure if/how this is possible).

You can use android:background="#DC143C", or any other RGB values for your color. I have no problem using it this way, as stated here

mystring = Replace(mystring, Chr(10), "")

String Interpolation

is a concept that languages like Perl have had for quite a while, and now we’ll get this ability in C# as well. In String Interpolation, we simply prefix the string with a $ (much like we use the @ for verbatim strings). Then, we simply surround the expressions we want to interpolate with curly braces (i.e. { and }):

It looks a lot like the String.Format() placeholders, but instead of an index, it is the expression itself inside the curly braces. In fact, it shouldn’t be a surprise that it looks like String.Format() because that’s really all it is – syntactical sugar that the compiler treats like String.Format() behind the scenes.

A great part is, the compiler now maintains the placeholders for you so you don’t have to worry about indexing the right argument because you simply place it right there in the string.

C# string interpolation is a method of concatenating,formatting and manipulating strings. This feature was introduced in C# 6.0. Using string interpolation, we can use objects and expressions as a part of the string interpolation operation.

Syntax of string interpolation starts with a ‘$’ symbol and expressions are defined within a bracket {} using the following syntax.

{<interpolatedExpression>[,<alignment>][:<formatString>]}  

Where:

• interpolatedExpression - The expression that produces a result to be formatted
• alignment - The constant expression whose value defines the minimum number of characters in the string representation of the result of the interpolated expression. If positive, the string representation is right-aligned; if negative, it's left-aligned.
• formatString - A format string that is supported by the type of the expression result.

The following code example concatenates a string where an object, author as a part of the string interpolation.

string author = "Mohit";  
string hello = $"Hello {author} !";  
Console.WriteLine(hello);  // Hello Mohit !

Read more on C#/.NET Little Wonders: String Interpolation in C# 6

I think you are not asking the right question--

A string in python has no property corresponding to 'ascii', utf-8, or any other encoding. The source of your string (whether you read it from a file, input from a keyboard, etc.) may have encoded a unicode string in ascii to produce your string, but that's where you need to go for an answer.

Perhaps the question you can ask is: "Is this string the result of encoding a unicode string in ascii?" -- This you can answer by trying:

try:
    mystring.decode('ascii')
except UnicodeDecodeError:
    print "it was not a ascii-encoded unicode string"
else:
    print "It may have been an ascii-encoded unicode string"

With a different opinion, I think the global variables might be the best choice if you are going to publish your code to npm, cuz you cannot be sure that all packages are using the same release of your code. So if you use a file for exporting a singleton object, it will cause issues here.

You can choose global, require.main or any other objects which are shared across files.

Otherwise, install your package as an optional dependency package can avoid this problem.

Please tell me if there are some better solutions.

Try this:

window.location.href = "http://www.gorissen.info/Pierre/maps/googleMapLocation.php?lat=\''+elemA+'\'&lon=\''+elemB+'\'&setLatLon=Set";

trick:

    int time_len = 0, n;
    struct tm *tm_info;
    struct timeval tv;

    gettimeofday(&tv, NULL);
    tm_info = localtime(&tv.tv_sec);
    time_len+=strftime(log_buff, sizeof log_buff, "%y%m%d %H:%M:%S", tm_info);
    time_len+=snprintf(log_buff+time_len,sizeof log_buff-time_len,".%03ld ",tv.tv_usec/1000);

In order to create dates from free text in Javascript you need to parse it into the Date() object.

You could use Date.parse() which takes free text tries to convert it into a new date but if you have control over the page I would recommend using HTML select boxes instead or a date picker such as the YUI calendar control or the jQuery UI Datepicker.

Once you have a date as other people have pointed out you can use simple arithmetic to subtract the dates and convert it back into a number of days by dividing the number (in seconds) by the number of seconds in a day (60*60*24 = 86400).

This command will help to pull from the repository as the different user:

git pull https://[email protected]/projectfolder/projectname.git master

It is a workaround, when you are using same machine that someone else used before you, and had saved credentials

Try running the following program. You just have to be sure your window has the focus when you hit Return--to ensure that it does, first click the button a couple of times until you see some output, then without clicking anywhere else hit Return.

import tkinter as tk

root = tk.Tk()
root.geometry("300x200")

def func(event):
    print("You hit return.")
root.bind('<Return>', func)

def onclick():
    print("You clicked the button")

button = tk.Button(root, text="click me", command=onclick)
button.pack()

root.mainloop()

Then you just have tweak things a little when making both the button click and hitting Return call the same function--because the command function needs to be a function that takes no arguments, whereas the bind function needs to be a function that takes one argument(the event object):

import tkinter as tk

root = tk.Tk()
root.geometry("300x200")

def func(event):
    print("You hit return.")

def onclick(event=None):
    print("You clicked the button")

root.bind('<Return>', onclick)

button = tk.Button(root, text="click me", command=onclick)
button.pack()

root.mainloop()

Or, you can just forgo using the button's command argument and instead use bind() to attach the onclick function to the button, which means the function needs to take one argument--just like with Return:

import tkinter as tk

root = tk.Tk()
root.geometry("300x200")

def func(event):
    print("You hit return.")

def onclick(event):
    print("You clicked the button")

root.bind('<Return>', onclick)

button = tk.Button(root, text="click me")
button.bind('<Button-1>', onclick)
button.pack()

root.mainloop()

Here it is in a class setting:

import tkinter as tk

class Application(tk.Frame):
    def __init__(self):
        self.root = tk.Tk()
        self.root.geometry("300x200")

        tk.Frame.__init__(self, self.root)
        self.create_widgets()

    def create_widgets(self):
        self.root.bind('<Return>', self.parse)
        self.grid()

        self.submit = tk.Button(self, text="Submit")
        self.submit.bind('<Button-1>', self.parse)
        self.submit.grid()

    def parse(self, event):
        print("You clicked?")

    def start(self):
        self.root.mainloop()


Application().start()

Why flush if you can commit?

As someone new to working with databases and sqlalchemy, the previous answers - that flush() sends SQL statements to the DB and commit() persists them - were not clear to me. The definitions make sense but it isn't immediately clear from the definitions why you would use a flush instead of just committing.

Since a commit always flushes (https://docs.sqlalchemy.org/en/13/orm/session_basics.html#committing) these sound really similar. I think the big issue to highlight is that a flush is not permanent and can be undone, whereas a commit is permanent, in the sense that you can't ask the database to undo the last commit (I think)

@snapshoe highlights that if you want to query the database and get results that include newly added objects, you need to have flushed first (or committed, which will flush for you). Perhaps this is useful for some people although I'm not sure why you would want to flush rather than commit (other than the trivial answer that it can be undone).

In another example I was syncing documents between a local DB and a remote server, and if the user decided to cancel, all adds/updates/deletes should be undone (i.e. no partial sync, only a full sync). When updating a single document I've decided to simply delete the old row and add the updated version from the remote server. It turns out that due to the way sqlalchemy is written, order of operations when committing is not guaranteed. This resulted in adding a duplicate version (before attempting to delete the old one), which resulted in the DB failing a unique constraint. To get around this I used flush() so that order was maintained, but I could still undo if later the sync process failed.

See my post on this at: Is there any order for add versus delete when committing in sqlalchemy

Similarly, someone wanted to know whether add order is maintained when committing, i.e. if I add object1 then add object2, does object1 get added to the database before object2 Does SQLAlchemy save order when adding objects to session?

Again, here presumably the use of a flush() would ensure the desired behavior. So in summary, one use for flush is to provide order guarantees (I think), again while still allowing yourself an "undo" option that commit does not provide.

Autoflush and Autocommit

Note, autoflush can be used to ensure queries act on an updated database as sqlalchemy will flush before executing the query. https://docs.sqlalchemy.org/en/13/orm/session_api.html#sqlalchemy.orm.session.Session.params.autoflush

Autocommit is something else that I don't completely understand but it sounds like its use is discouraged: https://docs.sqlalchemy.org/en/13/orm/session_api.html#sqlalchemy.orm.session.Session.params.autocommit

Memory Usage

Now the original question actually wanted to know about the impact of flush vs. commit for memory purposes. As the ability to persist or not is something the database offers (I think), simply flushing should be sufficient to offload to the database - although committing shouldn't hurt (actually probably helps - see below) if you don't care about undoing.

sqlalchemy uses weak referencing for objects that have been flushed: https://docs.sqlalchemy.org/en/13/orm/session_state_management.html#session-referencing-behavior

This means if you don't have an object explicitly held onto somewhere, like in a list or dict, sqlalchemy won't keep it in memory.

However, then you have the database side of things to worry about. Presumably flushing without committing comes with some memory penalty to maintain the transaction. Again, I'm new to this but here's a link that seems to suggest exactly this: https://stackoverflow.com/a/15305650/764365

In other words, commits should reduce memory usage, although presumably there is a trade-off between memory and performance here. In other words, you probably don't want to commit every single database change, one at a time (for performance reasons), but waiting too long will increase memory usage.

Don't use jQuery to manipulate the DOM when you're using React. React components should render a representation of what they should look like given a certain state; what DOM that translates to is taken care of by React itself.

What you want to do is store the "state which determines what gets rendered" higher up the chain, and pass it down. If you are rendering n children, that state should be "owned" by whatever contains your component. eg:

class AppComponent extends React.Component {
  state = {
    numChildren: 0
  }

  render () {
    const children = [];

    for (var i = 0; i < this.state.numChildren; i += 1) {
      children.push(<ChildComponent key={i} number={i} />);
    };

    return (
      <ParentComponent addChild={this.onAddChild}>
        {children}
      </ParentComponent>
    );
  }

  onAddChild = () => {
    this.setState({
      numChildren: this.state.numChildren + 1
    });
  }
}

const ParentComponent = props => (
  <div className="card calculator">
    <p><a href="#" onClick={props.addChild}>Add Another Child Component</a></p>
    <div id="children-pane">
      {props.children}
    </div>
  </div>
);

const ChildComponent = props => <div>{"I am child " + props.number}</div>;

Check your object owner if you copy the file from another aws account.

In my case, I copy the file from another aws account without acl, so file's owner is the other aws account, it's mean the file belongs to origin account.

To fix it, copy or sync s3 files with acl, example:

aws s3 cp --acl bucket-owner-full-control s3://bucket1/key s3://bucket2/key

Add a reference to the Outlook object model in the Visual Basic editor. Then you can use the code below to send an email using outlook.

Sub sendOutlookEmail()
Dim oApp As Outlook.Application
Dim oMail As MailItem
Set oApp = CreateObject("Outlook.application")

Set oMail = oApp.CreateItem(olMailItem)
oMail.Body = "Body of the email"
oMail.Subject = "Test Subject"
oMail.To = "[email protected]"
oMail.Send
Set oMail = Nothing
Set oApp = Nothing


End Sub

You can also look in the registry.

    using System.IO;
    using Microsoft.Win32;

    string GetMimeType(FileInfo fileInfo)
    {
        string mimeType = "application/unknown";

        RegistryKey regKey = Registry.ClassesRoot.OpenSubKey(
            fileInfo.Extension.ToLower()
            );

        if(regKey != null)
        {
            object contentType = regKey.GetValue("Content Type");

            if(contentType != null)
                mimeType = contentType.ToString();
        }

        return mimeType;
    }

One way or another you're going to have to tap into a database of MIMEs - whether they're mapped from extensions or magic numbers is somewhat trivial - windows registry is one such place. For a platform independent solution though one would have to ship this DB with the code (or as a standalone library).

You could try:

$(this).closest(".column").prev().find(".inputQty").val();

Post 2020 method, using dynamic import, self executing IIFE, asynchronous function!

(async () => {
    await import('https://code.jquery.com/jquery-2.2.4.min.js')
    // Library ready
    console.log(jQuery)
})()

Another example

https://caniuse.com/es6-module-dynamic-import

At first glance, I figured divmod would be faster since it's a single statement and a built-in function, but timeit seems to show otherwise. Consider this little example I came up with when I was trying to figure out the fastest method for use in a loop that continuously runs in a gobject idle_add splitting a seconds counter into a human readable time for updating a progress bar label.

import timeit

def test1(x,y, dropy):
    while x > 0:
        y -= dropy
        x -= 1

        # the test
        minutes = (y-x) / 60
        seconds = (y-x) % 60.0

def test2(x,y, dropy):
    while x > 0:
        y -= dropy
        x -= 1

        # the test
        minutes, seconds = divmod((y-x), 60)

x = 55     # litte number, also number of tests
y = 10000  # make y > x by factor of drop
dropy = 7 # y is reduced this much each iteration, for variation

print "division and modulus:", timeit.timeit( lambda: test1(x,y,dropy) )
print "divmod function:",      timeit.timeit( lambda: test2(x,y,dropy) )

The built-in divmod function seems incredibly slower compared to using the simple division and modulus.

division and modulus: 12.5737669468
divmod function: 17.2861430645

You may need to explain your question a little more.

When you say "redirect", to most people that suggest changing the location of the HTML page:

window.location = url;

When you say "redirect to function" - it doesn't really make sense. You can call a function or you can redirect to another page.
You can even redirect and have a function called when the new page loads.

Alternatively to calling plt.show() at the end of the script, you can also control each figure separately doing:

f = plt.figure(1)
plt.hist........
............
f.show()

g = plt.figure(2)
plt.hist(........
................
g.show()

raw_input()

In this case you must call raw_input to keep the figures alive. This way you can select dynamically which figures you want to show

Note: raw_input() was renamed to input() in Python 3

Use mouse_event or keybd_event. They say not to use them anymore but you don't have to find the window at all.

using System;
using System.Runtime.InteropServices;

public class SimulatePCControl
{

[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void keybd_event(uint bVk, uint bScan, uint dwFlags, uint dwExtraInfo);

private const int VK_LEFT = 0x25;

public static void LeftArrow()
{
    keybd_event(VK_LEFT, 0, 0, 0);
}

}

Virtual Key Codes are here for this one: http://www.kbdedit.com/manual/low_level_vk_list.html

Also for mouse:

using System.Runtime.InteropServices;
using UnityEngine;

public class SimulateMouseClick
{
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo);
//Mouse actions
private const int MOUSEEVENTF_LEFTDOWN = 0x02;
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
private const int MOUSEEVENTF_RIGHTUP = 0x10;

public static void Click()
{
    //Call the imported function with the cursor's current position
    uint X = (uint)0;
    uint Y = (uint)0;
    mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);
    Debug.LogError("SIMULATED A MOUSE CLICK JUST NOW...");
}

//...other code needed for the application
}

Both are the same.

But: If you want to use PHP as your templating language in your view files(the V of MVC) you can use this alternate syntax to distinguish between php code written to implement business-logic (Controller and Model parts of MVC) and gui-logic. Of course it is not mandatory and you can use what ever syntax you like.

ZF uses that approach.

$suppress_localhost = false;

This did the trick for me.

Use:

[ngStyle]="{'background-image': 'url(' +1=1 ? ../../assets/img/emp-user.png : ../../assets/img/emp-default.jpg + ')'}"

Each line of a batch file will get executed; but only after the previous line has completed. In your case, as soon as it hits the ftp line the ftp program will start and take over user input. When it is closed then the remaining lines will execute. Meaning the username/password are never sent to the FTP program and instead will be fed to the command prompt itself once the ftp program is closed.

Instead you need to pass everything you need on the ftp command line. Something like:

@echo off
echo user MyUserName> ftpcmd.dat
echo MyPassword>> ftpcmd.dat
echo bin>> ftpcmd.dat
echo put %1>> ftpcmd.dat
echo quit>> ftpcmd.dat
ftp -n -s:ftpcmd.dat SERVERNAME.COM
del ftpcmd.dat

go to phpmyadmin and drop the database that you created for laravel then create it again then go to cmd(if use windows) root project and type php artisan migrate

Try with pymssql: pip install pymssql

import pymssql

try:
    conn = pymssql.connect(server="host_or_ip", user="your_username", password="your_password", database="your_db")
    cursor = conn.cursor()
    cursor.execute ("SELECT @@VERSION")
    row = cursor.fetchone()
    print(f"\n\nSERVER VERSION:\n\n{row[0]}")
    cursor.close()
    conn.close()
except Exception:
    print("\nERROR: Unable to connect to the server.")
    exit(-1)

Output:

SERVER VERSION:

Microsoft SQL Server 2016 (SP2-CU14) (KB4564903) - 13.0.5830.85 (X64)
        Jul 31 2020 18:47:07
        Copyright (c) Microsoft Corporation
        Standard Edition (64-bit) on Windows Server 2012 R2 Standard 6.3 <X64> (Build 9600: ) (Hypervisor)

The connection can also be checked from the terminal, with a single line of code with sqlcmd. See syntax.

+---------------------------------------------------+
¦ Command ¦               Description               ¦
¦---------+-----------------------------------------¦
¦   -S    ¦ [protocol:]server[instance_name][,port] ¦
¦   -U    ¦ login_id                                ¦
¦   -p    ¦ password                                ¦
¦   -Q    ¦ "cmdline query" (and exit)              ¦
+---------------------------------------------------+

sqlcmd -S "host_or_ip"  -U "your_username" -p -Q "SELECT @@VERSION"

output:

Password:    your_password



--------------------------------------------------------------------------------------------------------------------------------------------------------
Microsoft SQL Server 2016 (SP2-CU14) (KB4564903) - 13.0.5830.85 (X64) 
        Jul 31 2020 18:47:07 
        Copyright (c) Microsoft Corporation
        Standard Edition (64-bit) on Windows Server 2012 R2 Standard 6.3 <X64> (Build 9600: ) (Hypervisor)


(1 rows affected)

Network packet size (bytes): 4096
1 xact[s]:
Clock Time (ms.): total         1  avg   1.00 (1000.00 xacts per sec.)

Try this:

insert into MyTable(field1, field2, id_backup)
    select field1, field2, uniqueId from MyTable where uniqueId = @Id;

Any fields not specified should receive their default value (which is usually NULL when not defined).

All of the above did not work for me. Cloning the repo was working correctly but I was still getting an unrecognized import error.

As it stands for Go v1.13, I found in the doc that we should use the GOPRIVATE env variable like so:

$ GOPRIVATE=github.com/ORGANISATION_OR_USER_NAME go get -u github.com/ORGANISATION_OR_USER_NAME/REPO_NAME

A clean and flexible solution in MS SQL Server 2005/2008 is to create a CLR Agregate function.

You'll find quite a few articles (with code) on google.

It looks like this article walks you through the whole process using C#.

A Collection does not have an ordering, so wanting to sort it does not make sense. You can sort List instances and arrays, and the methods to do that are Collections.sort() and Arrays.sort()

GroupBy using in Hibernate

This is the resulting code

public Map getStateCounts(final Collection ids) {
    HibernateSession hibernateSession = new HibernateSession();
    Session session = hibernateSession.getSession();
    Criteria criteria = session.createCriteria(DownloadRequestEntity.class)
            .add(Restrictions.in("id", ids));
    ProjectionList projectionList = Projections.projectionList();
    projectionList.add(Projections.groupProperty("state"));
    projectionList.add(Projections.rowCount());
    criteria.setProjection(projectionList);
    List results = criteria.list();
    Map stateMap = new HashMap();
    for (Object[] obj : results) {
        DownloadState downloadState = (DownloadState) obj[0];
        stateMap.put(downloadState.getDescription().toLowerCase() (Integer) obj[1]);
    }
    hibernateSession.closeSession();
    return stateMap;
}

Well, the _id is an object in your example, so you just need to pass an object

'db.test_users.remove({"_id": { "$oid" : "4d513345cc9374271b02ec6c" }})'

This should work

Edit: Added trailing paren to ensure that it compiled.

Jenkins determines the success/failure of a step by the return value of the step. For the case of a shell, it should be the return of the last value. For both Windows CMD and (POSIX) Bash shells, you should be able to set the return value manually by using exit 0 as the last command.

This is not my prefered way to do this, cause of massive CPU consumption.

If that is actually your working code, then just keep it like that. Checking a boolean once a second causes NO measurable CPU load. None whatsoever.

The real problem is that the thread that checks the value may not see a change that has happened for an arbitrarily long time due to caching. To ensure that the value is always synchronized between threads, you need to put the volatile keyword in the variable definition, i.e.

private volatile boolean value;

Note that putting the access in a synchronized block, such as when using the notification-based solution described in other answers, will have the same effect.

Both are valid. It's your choice.

I prefer border:0 because it's shorter; I find that easier to read. You may find none more legible. We live in a world of very capable CSS post-processors so I'd recommend you use whatever you prefer and then run it through a "compressor". There's no holy war worth fighting here but Webpack?LESS?PostCSS?PurgeCSS is a good 2020 stack.

That all said, if you're hand-writing all your production CSS, I maintain —despite the grumbling in the comments— it does not hurt to be bandwidth conscious. Using border:0 will save an infinitesimal amount of bandwidth on its own, but if you make every byte count, you will make your website faster.

The CSS2 specs are here. These are extended in CSS3 but not in any way relevant to this.

'border'
    Value:      [ <border-width> || <border-style> || <'border-top-color'> ] | inherit
    Initial:    see individual properties
    Applies to:     all elements
    Inherited:      no
    Percentages:    N/A
    Media:      visual
    Computed value:     see individual properties 

You can use any combination of width, style and colour.
Here, 0 sets the width, none the style. They have the same rendering result: nothing is shown.

I had trouble using getopts with multiple flags, so I wrote this code. It uses a modal variable to detect flags, and to use those flags to assign arguments to variables.

Note that, if a flag shouldn't have an argument, something other than setting CURRENTFLAG can be done.

    for MYFIELD in "$@"; do

        CHECKFIRST=`echo $MYFIELD | cut -c1`

        if [ "$CHECKFIRST" == "-" ]; then
            mode="flag"
        else
            mode="arg"
        fi

        if [ "$mode" == "flag" ]; then
            case $MYFIELD in
                -a)
                    CURRENTFLAG="VARIABLE_A"
                    ;;
                -b)
                    CURRENTFLAG="VARIABLE_B"
                    ;;
                -c)
                    CURRENTFLAG="VARIABLE_C"
                    ;;
            esac
        elif [ "$mode" == "arg" ]; then
            case $CURRENTFLAG in
                VARIABLE_A)
                    VARIABLE_A="$MYFIELD"
                    ;;
                VARIABLE_B)
                    VARIABLE_B="$MYFIELD"
                    ;;
                VARIABLE_C)
                    VARIABLE_C="$MYFIELD"
                    ;;
            esac
        fi
    done

Get rid of the notion of vector entirely

template< typename IT, typename VT>
int index_of(IT begin, IT end, const VT& val)
{
    int index = 0;
    for (; begin != end; ++begin)
    {
        if (*begin == val) return index;
    }
    return -1;
}

This will allow you more flexibility and let you use constructs like

int squid[] = {5,2,7,4,1,6,3,0};
int sponge[] = {4,2,4,2,4,6,2,6};
int squidlen = sizeof(squid)/sizeof(squid[0]);
int position = index_of(&squid[0], &squid[squidlen], 3);
if (position >= 0) { std::cout << sponge[position] << std::endl; }

You could also search any other container sequentially as well.

In case it helps someone, I had a similar issue and the error was because of two reasons:

1. Not using the app's namespace before the url name

   {% url 'app_name:url_name' %}
   

2. Missing single quotes around the url name (as pointed out here by Charlie)

In my case, I pushed several big (> 100Mb) files and then proceeded to remove them. But they were still in the history of my repo, so I had to remove them from it as well.

What did the trick was:

bfg -b 100M  # To remove all blobs from history, whose size is superior to 100Mb
git reflog expire --expire=now --all
git gc --prune=now --aggressive

Then, you need to push force on your branch:

git push origin <your_branch_name> --force

Note: bfg is a tool that can be installed on Linux and macOS using brew:

brew install bfg

Simply just go to Values - styles and inside styles and type your color

It's a conceptual problem.

Stringstream is a stream, so its iterators are forward, cannot return. In an output stringstream, you need a flush() to reinitialize it, as in any other output stream.

The shortest code would be:

Select CAST((@EndDateTime-@StartDateTime) as time(0)) '[hh:mm:ss]'

I could not access the context object directly.
My solution is as following:

Context appContext = Android.App.Application.Context;
var wifiManager = (WifiManager)appContext.GetSystemService(WifiService);
wifiManager.SetWifiEnabled(state);

Also I had to change some writings eg. WIFI_SERVICE vs. WifiService.

You can use: <xsl:text>&#10;</xsl:text>

see the example

<xsl:variable name="module-info">
  <xsl:value-of select="@name" /> = <xsl:value-of select="@rev" />
  <xsl:text>&#10;</xsl:text>
</xsl:variable>

if you write this in file e.g.

<redirect:write file="temp.prop" append="true">
  <xsl:value-of select="$module-info" />
</redirect:write>

this variable will produce a new line infile as:

commons-dbcp_commons-dbcp = 1.2.2
junit_junit = 4.4
org.easymock_easymock = 2.4

It seems that Luiggi Mendoza and joey rohan both already answered this, but I think it can be clarified a little.

You can write it as a single if statement:

if (inventory.contains("bread") && !inventory.contains("water")) {
    // do something
}

Finally I got the solution

sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf
sudo a2enconf phpmyadmin
sudo service apache2 reload

More about https://askubuntu.com/questions/55280/phpmyadmin-is-not-working-after-i-installed-it

Here's how you should do it:

change_column :users, :admin, :boolean, :default => false

But some databases, like PostgreSQL, will not update the field for rows previously created, so make sure you update the field manaully on the migration too.

Cross browser testing java scripts

public class MultipleBrowser {

    public WebDriver driver= null;
    String browser="mozilla";
    String url="https://www.omnicard.com";

    @BeforeMethod
    public void LaunchBrowser() {

        if(browser.equalsIgnoreCase("mozilla"))
            driver= new FirefoxDriver();
        else if(browser.equalsIgnoreCase("safari"))
            driver= new SafariDriver();
        else if(browser.equalsIgnoreCase("chrome"))
            //System.setProperty("webdriver.chrome.driver","/Users/mhossain/Desktop/chromedriver");
            driver= new ChromeDriver(); 
        driver.manage().timeouts().implicitlyWait(4, TimeUnit.SECONDS);
        driver.navigate().to(url);
    }

}

but when you want to run firefox you need to chrome path disable, otherwise browser will launch but application may not.(try both way) .

Well, "return valid();" is a string, so that's correct.

If you want to check if it has a function attached instead, you could try this:

formId.onsubmit = function (){ /* */ }

if(typeof formId.onsubmit == "function"){
  alert("it's a function!");
}

Thanks for the great answers! Fastest way to get a few one-off files to Colab from Google drive: Load the Drive helper and mount

from google.colab import drive

This will prompt for authorization.

drive.mount('/content/drive')

Open the link in a new tab-> you will get a code - copy that back into the prompt you now have access to google drive check:

!ls "/content/drive/My Drive"

then copy file(s) as needed:

!cp "/content/drive/My Drive/xy.py" "xy.py"

confirm that files were copied:

!ls

I know, I am tooooo late to post an answer, but hoping that it might help someone. Plus, I just solved this issue I had with my tests. This is what I had in my test:

My test class

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "path-to-context" })
@Transactional
public class MyIntegrationTest 

Context xml

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
   <property name="driverClassName" value="${jdbc.driverClassName}" />
   <property name="url" value="${jdbc.url}" />
   <property name="username" value="${jdbc.username}" />
   <property name="password" value="${jdbc.password}" />
</bean>

I still had the problem that, the database was not being cleaned up automatically.

Issue was resolved when I added following property to BasicDataSource

<property name="defaultAutoCommit" value="false" />

Hope it helps.

Not sure if this is faster but flipping an array twice will cast numeric strings to integers:

$string = "1,2,3,bla";
$ids = array_flip(array_flip(explode(',', $string)));
var_dump($ids);

Important: Do not use this if you are dealing with duplicate values!

Had this when I accidentally was calling

mapper.convertValue(...)

instead of

mapper.readValue(...)

So, just make sure you call correct method, since argument are same and IDE can find many things

I had the problem with Tomcat running on Ubuntu. The issue was selinux was enabled and for some reason it would not let Eclipse connect to the debugging port. Disabling selinux or putting it in permissive mode solved the issue for me.

The logic is not flawed. The statement

if x is y then x==y is also True

should never be read to mean

if x==y then x is y

It is a logical error on the part of the reader to assume that the converse of a logic statement is true. See http://en.wikipedia.org/wiki/Converse_(logic)

You can also use apply with .get i.e.

w['female'] = w['female'].apply({'male':0, 'female':1}.get):

w = pd.DataFrame({'female':['female','male','female']})
print(w)

Dataframe w:

   female
0  female
1    male
2  female

Using apply to replace values from the dictionary:

w['female'] = w['female'].apply({'male':0, 'female':1}.get)
print(w)

Result:

   female
0       1
1       0
2       1 

Note: apply with dictionary should be used if all the possible values of the columns in the dataframe are defined in the dictionary else, it will have empty for those not defined in dictionary.

Only the Assets and ProjectSettings folders need to be under git version control.

You can make a gitignore like this.

[Ll]ibrary/
[Tt]emp/
[Oo]bj/

# Autogenerated VS/MD solution and project files
*.csproj
*.unityproj
*.sln
*.suo
*.userprefs

# Mac
.DS_Store
*.swp
*.swo

Thumbs.db
Thumbs.db.meta

.vs/

I have added line

$this->_productCollection->addAttributeToSelect('releasedate');

in

app/code/core/Mage/Catalog/Block/Product/List.php on line 95

in function _getProductCollection()

and then call it in

app/design/frontend/default/hellopress/template/catalog/product/list.phtml

By writing code

<div><?php echo $this->__('Release Date: %s', $this->dateFormat($_product->getReleasedate())) ?>
</div>

Now it is working in Magento 1.4.x

A simple solution is to use BindingList<T> instead of ObservableCollection<T> . Indeed the BindingList relay item change notifications. So with a binding list, if the item implements the interface INotifyPropertyChanged then you can simply get notifications using the ListChanged event.

See also this SO answer.

With using the following smooth scrolling is working fine:

html {_x000D_
  scroll-behavior: smooth;_x000D_
}

As shaishab roy says, in the cheat sheet you can find the answer.

But in his answer, the given response was :

{path: '/home/...', name: 'Home', component: HomeComponent}
{path: '/', redirectTo: ['Home']},
{path: '/user/...', name: 'User', component: UserComponent},
{path: '/404', name: 'NotFound', component: NotFoundComponent},

{path: '/*path', redirectTo: ['NotFound']}

For some reasons, it doesn't works on my side, so I tried instead :

{path: '/**', redirectTo: ['NotFound']}

and it works. Be careful and don't forget that you need to put it at the end, or else you will often have the 404 error page ;).

UPDATE:

onActivityCreated() is deprecated from API Level 28.

onCreate():

The onCreate() method in a Fragment is called after the Activity's onAttachFragment() but before that Fragment's onCreateView().
In this method, you can assign variables, get Intent extras, and anything else that doesn't involve the View hierarchy (i.e. non-graphical initialisations). This is because this method can be called when the Activity's onCreate() is not finished, and so trying to access the View hierarchy here may result in a crash.

onCreateView():

After the onCreate() is called (in the Fragment), the Fragment's onCreateView() is called. You can assign your View variables and do any graphical initialisations. You are expected to return a View from this method, and this is the main UI view, but if your Fragment does not use any layouts or graphics, you can return null (happens by default if you don't override).

onActivityCreated():

As the name states, this is called after the Activity's onCreate() has completed. It is called after onCreateView(), and is mainly used for final initialisations (for example, modifying UI elements). This is deprecated from API level 28.

To sum up...
... they are all called in the Fragment but are called at different times.
The onCreate() is called first, for doing any non-graphical initialisations. Next, you can assign and declare any View variables you want to use in onCreateView(). Afterwards, use onActivityCreated() to do any final initialisations you want to do once everything has completed.

If you want to view the official Android documentation, it can be found here:

• onCreate()
• onCreateView()
• onActivityCreated()_

There are also some slightly different, but less developed questions/answers here on Stack Overflow:

• onCreate() vs onCreateView()
• onCreateView() vs onActivityCreated()

what about the retrying library on pypi? I have been using it for a while and it does exactly what I want and more (retry on error, retry when None, retry with timeout). Below is example from their website:

import random
from retrying import retry

@retry
def do_something_unreliable():
    if random.randint(0, 10) > 1:
        raise IOError("Broken sauce, everything is hosed!!!111one")
    else:
        return "Awesome sauce!"

print do_something_unreliable()

Following @VonC great answer. Your GitHub company policy might not allow 'force push' on master.

remote: error: GH003: Sorry, force-pushing to master is not allowed.

If you get an error message like this one please try the following steps.

To effectively reset your fork you need to follow these steps :

git checkout master
git reset --hard upstream/master
git checkout -b tmp_master
git push origin

Open your fork on GitHub, in "Settings -> Branches -> Default branch" choose 'new_master' as the new default branch. Now you can force push on the 'master' branch :

git checkout master
git push --force origin

Then you must set back 'master' as the default branch in the GitHub settings. To delete 'tmp_master' :

git push origin --delete tmp_master
git branch -D tmp_master

Other answers warning about lossing your change still apply, be carreful.

The use of const in strict mode is available with the release of Chrome 41. Currently, Chrome 41 Beta is already released and supports it.

If you have Composer installed globally, you can install the Laravel installer tool using command below:

composer global require "laravel/installer=~1.1"

When root permissions are required

When root permissions are required for the destination file, use |sudo tee instead of >:

cat << 'EOF' |sudo tee /tmp/yourprotectedfilehere
The variable $FOO will *not* be interpreted.
EOF

cat << "EOF" |sudo tee /tmp/yourprotectedfilehere
The variable $FOO *will* be interpreted.
EOF

This is my way to do this:

Start_date = "2000-06-01"
End_date   = "2001-05-01"

month_num  = len(pd.date_range(start = Start_date[:7], end = End_date[:7] ,freq='M'))+1

I just use the month to create a date range and calculate the length.

Yes, this is new in PHP 5.3. It returns either the value of the test expression if it is evaluated as TRUE, or the alternative value if it is evaluated as FALSE.

SQL Server 2012 and Later

Just use Try_Convert instead:

TRY_CONVERT takes the value passed to it and tries to convert it to the specified data_type. If the cast succeeds, TRY_CONVERT returns the value as the specified data_type; if an error occurs, null is returned. However if you request a conversion that is explicitly not permitted, then TRY_CONVERT fails with an error.

Read more about Try_Convert.

SQL Server 2008 and Earlier

The traditional way of handling this is by guarding every expression with a case statement so that no matter when it is evaluated, it will not create an error, even if it logically seems that the CASE statement should not be needed. Something like this:

SELECT
   Account_Code =
      Convert(
         bigint, -- only gives up to 18 digits, so use decimal(20, 0) if you must
         CASE
         WHEN X.Account_Code LIKE '%[^0-9]%' THEN NULL
         ELSE X.Account_Code
         END
      ),
   A.Descr
FROM dbo.Account A
WHERE
   Convert(
      bigint,
      CASE
      WHEN X.Account_Code LIKE '%[^0-9]%' THEN NULL
      ELSE X.Account_Code
      END
   ) BETWEEN 503100 AND 503205

However, I like using strategies such as this with SQL Server 2005 and up:

SELECT
   Account_Code = Convert(bigint, X.Account_Code),
   A.Descr
FROM
   dbo.Account A
   OUTER APPLY (
      SELECT A.Account_Code WHERE A.Account_Code NOT LIKE '%[^0-9]%'
   ) X
WHERE
   Convert(bigint, X.Account_Code) BETWEEN 503100 AND 503205

What this does is strategically switch the Account_Code values to NULL inside of the X table when they are not numeric. I initially used CROSS APPLY but as Mikael Eriksson so aptly pointed out, this resulted in the same error because the query parser ran into the exact same problem of optimizing away my attempt to force the expression order (predicate pushdown defeated it). By switching to OUTER APPLY it changed the actual meaning of the operation so that X.Account_Code could contain NULL values within the outer query, thus requiring proper evaluation order.

You may be interested to read Erland Sommarskog's Microsoft Connect request about this evaluation order issue. He in fact calls it a bug.

There are additional issues here but I can't address them now.

P.S. I had a brainstorm today. An alternate to the "traditional way" that I suggested is a SELECT expression with an outer reference, which also works in SQL Server 2000. (I've noticed that since learning CROSS/OUTER APPLY I've improved my query capability with older SQL Server versions, too--as I am getting more versatile with the "outer reference" capabilities of SELECT, ON, and WHERE clauses!)

SELECT
   Account_Code =
      Convert(
         bigint,
         (SELECT A.AccountCode WHERE A.Account_Code NOT LIKE '%[^0-9]%')
      ),
   A.Descr
FROM dbo.Account A
WHERE
   Convert(
      bigint,
      (SELECT A.AccountCode WHERE A.Account_Code NOT LIKE '%[^0-9]%')
   ) BETWEEN 503100 AND 503205

It's a lot shorter than the CASE statement.

Your @Entity class has a String type for its @Id field, so it can't generate ids for you.

If you change it to an auto increment in the DB and a Long in java, and add the @GeneratedValue annotation:

@Id
@Column(name="U_id")
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long U_id;

it will handle incrementing id generation for you.

var test = parseInt($("#testid").val());

A modern alternative:

const textToFind = 'Google';
const dd = document.getElementById ('MyDropDown');
dd.selectedIndex = [...dd.options].findIndex (option => option.text === textToFind);

Polymorphism: The ability to treat objects of different types in a similar manner. Example: Giraffe and Crocodile are both Animals, and animals can Move. If you have an instance of an Animal then you can call Move without knowing or caring what type of animal it is.

Inheritance: This is one way of achieving both Polymorphism and code reuse at the same time.

Other forms of polymorphism: There are other way of achieving polymorphism, such as interfaces, which provide only polymorphism but no code reuse (sometimes the code is quite different, such as Move for a Snake would be quite different from Move for a Dog, in which case an Interface would be the better polymorphic choice in this case.

In other dynamic languages polymorphism can be achieved with Duck Typing, which is the classes don't even need to share the same base class or interface, they just need a method with the same name. Or even more dynamic like Javascript, you don't even need classes at all, just an object with the same method name can be used polymorphically.

Is the size of C “int” 2 bytes or 4 bytes?

Does an Integer variable in C occupy 2 bytes or 4 bytes?

C allows "bytes" to be something other than 8 bits per "byte".

CHAR_BIT number of bits for smallest object that is not a bit-field (byte) C11dr §5.2.4.2.1 1

A value of something than 8 is increasingly uncommon. For maximum portability, use CHAR_BIT rather than 8. The size of an int in bits in C is sizeof(int) * CHAR_BIT.

#include <limits.h>
printf("(int) Bit size %zu\n", sizeof(int) * CHAR_BIT);

What are the factors that it depends on?

The int bit size is commonly 32 or 16 bits. C specified minimum ranges:

minimum value for an object of type int INT_MIN -32767
maximum value for an object of type int INT_MAX +32767
C11dr §5.2.4.2.1 1

The minimum range for int forces the bit size to be at least 16 - even if the processor was "8-bit". A size like 64 bits is seen in specialized processors. Other values like 18, 24, 36, etc. have occurred on historic platforms or are at least theoretically possible. Modern coding rarely worries about non-power-of-2 int bit sizes.

The computer's processor and architecture drive the int bit size selection.

Yet even with 64-bit processors, the compiler's int size may be 32-bit for compatibility reasons as large code bases depend on int being 32-bit (or 32/16).

File -> Invalidate Caches/Restart And Build your project

You can use dateutil.parser.parse (install with python -m pip install python-dateutil) to parse strings into datetime objects.

dateutil.parser.parse will attempt to guess the format of your string, if you know the exact format in advance then you can use datetime.strptime which you supply a format string to (see Brent Washburne's answer).

from dateutil.parser import parse

a = "2012-10-09T19:00:55Z"

b = parse(a)

print(b.weekday())
# 1 (equal to a Tuesday)

There are different ways to return status code, 1 : RestController class should extends BaseRest class, in BaseRest class we can handle exception and return expected error codes. for example :

@RestController
@RequestMapping
class RestController extends BaseRest{

}

@ControllerAdvice
public class BaseRest {
@ExceptionHandler({Exception.class,...})
    @ResponseStatus(value=HttpStatus.INTERNAL_SERVER_ERROR)
    public ErrorModel genericError(HttpServletRequest request, 
            HttpServletResponse response, Exception exception) {
        
        ErrorModel error = new ErrorModel();
        resource.addError("error code", exception.getLocalizedMessage());
        return error;
    }

Vanilla JS

No need for external libraries - just use ES6 template strings:

<i className={`${styles['foo-bar-baz']} fa fa-user fa-2x`}/>

URL to String in pure Java

Example call

 String str = getStringFromUrl("YourUrl");

Implementation

You can use the method described in this answer, on How to read URL to an InputStream and combine it with this answer on How to read InputStream to String.

The outcome will be something like

public String getStringFromUrl(URL url) throws IOException {
        return inputStreamToString(urlToInputStream(url,null));
}

public String inputStreamToString(InputStream inputStream) throws IOException {
    try(ByteArrayOutputStream result = new ByteArrayOutputStream()) {
        byte[] buffer = new byte[1024];
        int length;
        while ((length = inputStream.read(buffer)) != -1) {
            result.write(buffer, 0, length);
        }

        return result.toString(UTF_8);
    }
}

private InputStream urlToInputStream(URL url, Map<String, String> args) {
    HttpURLConnection con = null;
    InputStream inputStream = null;
    try {
        con = (HttpURLConnection) url.openConnection();
        con.setConnectTimeout(15000);
        con.setReadTimeout(15000);
        if (args != null) {
            for (Entry<String, String> e : args.entrySet()) {
                con.setRequestProperty(e.getKey(), e.getValue());
            }
        }
        con.connect();
        int responseCode = con.getResponseCode();
        /* By default the connection will follow redirects. The following
         * block is only entered if the implementation of HttpURLConnection
         * does not perform the redirect. The exact behavior depends to 
         * the actual implementation (e.g. sun.net).
         * !!! Attention: This block allows the connection to 
         * switch protocols (e.g. HTTP to HTTPS), which is <b>not</b> 
         * default behavior. See: https://stackoverflow.com/questions/1884230 
         * for more info!!!
         */
        if (responseCode < 400 && responseCode > 299) {
            String redirectUrl = con.getHeaderField("Location");
            try {
                URL newUrl = new URL(redirectUrl);
                return urlToInputStream(newUrl, args);
            } catch (MalformedURLException e) {
                URL newUrl = new URL(url.getProtocol() + "://" + url.getHost() + redirectUrl);
                return urlToInputStream(newUrl, args);
            }
        }
        /*!!!!!*/

        inputStream = con.getInputStream();
        return inputStream;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Pros

• It is pure java

• It can be easily enhanced by adding different headers (instead of passing a null object, like the example above does), authentication, etc.

• Handling of protocol switches is supported

Here you go.

SELECT
   column1, 
   column2
FROM
   viewWhatever
WHERE
CASE 
    WHEN @locationType = 'location' AND account_location = @locationID THEN 1
    WHEN @locationType = 'area' AND xxx_location_area = @locationID THEN 1
    WHEN @locationType = 'division' AND xxx_location_division = @locationID THEN 1
    ELSE 0
END = 1

As others have pointed, having a response entity in an error code is perfectly allowable.

Do remember that 5xx errors are server-side, aka the client cannot change anything to its request to make the request pass. If the client's quota is exceeded, that's definitly not a server error, so 5xx should be avoided.

Change the .find to .filter...

Native tskill <pid> (or tskill.exe <pid> ) worked for me on Windows 10 where no other native answer did.

In my case, I had some chrome.exe processes for which task manager's 'End Task' was working, but neither taskkill /F /T /PID <pid> nor powershell's kill -id <pid> worked (even with both shells run as admin).

This is very strange as taskkill is purported to be a better-api-and-does-more version of tskill.

In my case to kill all instances of a certain task I used FOR /F "usebackq tokens=2 skip=2" %i IN (`TASKLIST /FI "IMAGENAME eq name_of_task.exe"`) DO tskill %i

For anyone returning to this question. The correct "Angular Way" to remove items from an array is with $filter. Just inject $filter into your controller and do the following:

$scope.items = $filter('filter')($scope.items, {name: '!ted'})

You don't need to load any additional libraries or resort to Javascript primitives.

You can use std::map::at member function, it returns a reference to the mapped value of the element identified with key k.

std::map<char,int> mymap = {
                               { 'a', 0 },
                               { 'b', 0 },
                           };

  mymap.at('a') = 10;
  mymap.at('b') = 20;

You can just use the View.setId(integer) for this. In the XML, even though you're setting a String id, this gets converted into an integer. Due to this, you can use any (positive) Integer for the Views you add programmatically.

According to View documentation

The identifier does not have to be unique in this view's hierarchy. The identifier should be a positive number.

So you can use any positive integer you like, but in this case there can be some views with equivalent id's. If you want to search for some view in hierarchy calling to setTag with some key objects may be handy.

Credits to this answer.

Pig: it is better to handle files and cleaning data example: removing null values,string handling,unnecessary values Hive: for querying on cleaned data

If you don't want to use the elasticdump like a console tool. You can use next node.js script

100% working Concept to send email with attachment in php :

if (isset($_POST['submit'])) {
  extract($_POST);
  require_once('mail/class.phpmailer.php');

  $subject = "$name Applied For - $position";
  $email_message = "<div>Thanks for Applying ....</div> ";

  $mail = new PHPMailer;
  $mail->IsSMTP(); // telling the class to use SMTP
  $mail->Host = "mail.companyname.com"; // SMTP server
  $mail->SMTPDebug = 0;
  $mail->SMTPAuth = true;
  $mail->SMTPSecure = "ssl";
  $mail->Host = "smtp.gmail.com";
  $mail->Port = 465;
  $mail->IsHTML(true);
  $mail->Username = "[email protected]";  // GMAIL username
  $mail->Password = "mailPassword";          // GMAIL password

  $mail->SetFrom('[email protected]', 'new application submitted');
  $mail->AddReplyTo("[email protected]","First Last");
  $mail->Subject = "your subject";

  $mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test

  $mail->MsgHTML($email_message);

  $address = '[email protected]';
  $mail->AddAddress($address, "companyname");

  $mail->AddAttachment($_FILES['file']['tmp_name'], $_FILES['file']['name']);      // attachment

  if (!$mail->Send()) {
    /* Error */
    echo 'Message not Sent! Email at [email protected]';
  } else {
    /* Success */
    echo 'Sent Successfully! <b> Check your Mail</b>';
  }
}

I used this code for google smtp mail sending with Attachment....

Note: Download PHPMailer Library from here -> https://github.com/PHPMailer/PHPMailer

You can call listIterator method again to get an instance of iterator pointing at beginning of list:

iter = list.listIterator();

This also works if you are looping over an object.

unset($object->$key);

No need to use brackets.

>>> import datetime
>>> import time
>>> import calendar

>>> #your datetime object
>>> now = datetime.datetime.now()
>>> now
datetime.datetime(2013, 3, 19, 13, 0, 9, 351812)

>>> #use datetime module's timetuple method to get a `time.struct_time` object.[1]
>>> tt = datetime.datetime.timetuple(now)
>>> tt
time.struct_time(tm_year=2013, tm_mon=3, tm_mday=19, tm_hour=13, tm_min=0, tm_sec=9,     tm_wday=1, tm_yday=78, tm_isdst=-1)

>>> #If your datetime object is in utc you do this way. [2](see the first table on docs)
>>> sec_epoch_utc = calendar.timegm(tt) * 1000
>>> sec_epoch_utc
1363698009

>>> #If your datetime object is in local timeformat you do this way
>>> sec_epoch_loc = time.mktime(tt) * 1000
>>> sec_epoch_loc
1363678209.0

[1] http://docs.python.org/2/library/datetime.html#datetime.date.timetuple

[2] http://docs.python.org/2/library/time.html

Implement SQL GROUP BY Feature in Java using Comparator, comparator will compare your column data, and sort it. Basically if you keep sorted data that looks as grouped data, for example if you have same repeated column data then sort mechanism sort them keeping same data one side and then look for other data which is dissimilar data. This indirectly viewed as GROUPING of same data.

public class GroupByFeatureInJava {

    public static void main(String[] args) {
        ProductBean p1 = new ProductBean("P1", 20, new Date());
        ProductBean p2 = new ProductBean("P1", 30, new Date());
        ProductBean p3 = new ProductBean("P2", 20, new Date());
        ProductBean p4 = new ProductBean("P1", 20, new Date());
        ProductBean p5 = new ProductBean("P3", 60, new Date());
        ProductBean p6 = new ProductBean("P1", 20, new Date());

        List<ProductBean> list = new ArrayList<ProductBean>();
        list.add(p1);
        list.add(p2);
        list.add(p3);
        list.add(p4);
        list.add(p5);
        list.add(p6);

        for (Iterator iterator = list.iterator(); iterator.hasNext();) {
            ProductBean bean = (ProductBean) iterator.next();
            System.out.println(bean);
        }
        System.out.println("******** AFTER GROUP BY PRODUCT_ID ******");
        Collections.sort(list, new ProductBean().new CompareByProductID());
        for (Iterator iterator = list.iterator(); iterator.hasNext();) {
            ProductBean bean = (ProductBean) iterator.next();
            System.out.println(bean);
        }

        System.out.println("******** AFTER GROUP BY PRICE ******");
        Collections.sort(list, new ProductBean().new CompareByProductPrice());
        for (Iterator iterator = list.iterator(); iterator.hasNext();) {
            ProductBean bean = (ProductBean) iterator.next();
            System.out.println(bean);
        }
    }
}

class ProductBean {
    String productId;
    int price;
    Date date;

    @Override
    public String toString() {
        return "ProductBean [" + productId + " " + price + " " + date + "]";
    }
    ProductBean() {
    }
    ProductBean(String productId, int price, Date date) {
        this.productId = productId;
        this.price = price;
        this.date = date;
    }
    class CompareByProductID implements Comparator<ProductBean> {
        public int compare(ProductBean p1, ProductBean p2) {
            if (p1.productId.compareTo(p2.productId) > 0) {
                return 1;
            }
            if (p1.productId.compareTo(p2.productId) < 0) {
                return -1;
            }
            // at this point all a.b,c,d are equal... so return "equal"
            return 0;
        }
        @Override
        public boolean equals(Object obj) {
            // TODO Auto-generated method stub
            return super.equals(obj);
        }
    }

    class CompareByProductPrice implements Comparator<ProductBean> {
        @Override
        public int compare(ProductBean p1, ProductBean p2) {
            // this mean the first column is tied in thee two rows
            if (p1.price > p2.price) {
                return 1;
            }
            if (p1.price < p2.price) {
                return -1;
            }
            return 0;
        }
        public boolean equals(Object obj) {
            // TODO Auto-generated method stub
            return super.equals(obj);
        }
    }

    class CompareByCreateDate implements Comparator<ProductBean> {
        @Override
        public int compare(ProductBean p1, ProductBean p2) {
            if (p1.date.after(p2.date)) {
                return 1;
            }
            if (p1.date.before(p2.date)) {
                return -1;
            }
            return 0;
        }
        @Override
        public boolean equals(Object obj) {
            // TODO Auto-generated method stub
            return super.equals(obj);
        }
    }
}

Output is here for the above ProductBean list is done GROUP BY criteria, here if you see the input data that is given list of ProductBean to Collections.sort(list, object of Comparator for your required column) This will sort based on your comparator implementation and you will be able to see the GROUPED data in below output. Hope this helps...

    ******** BEFORE GROUPING INPUT DATA LOOKS THIS WAY ******
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 30 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P2 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P3 60 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ******** AFTER GROUP BY PRODUCT_ID ******
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 30 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P2 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P3 60 Mon Nov 17 09:31:01 IST 2014]

    ******** AFTER GROUP BY PRICE ******
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P2 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 20 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P1 30 Mon Nov 17 09:31:01 IST 2014]
    ProductBean [P3 60 Mon Nov 17 09:31:01 IST 2014]

If program name is always the first thing in (), and doesn't contain other )s than the one at end, then $yourstring -match "[(][^)]+[)]" does the matching, result will be in $Matches[0]