Programs & Examples On #Wifimanager

Since the method NetworkInfo.isConnected() is now deprecated in API-23, here is a method which detects if the Wi-Fi adapter is on and also connected to an access point using WifiManager instead:

private boolean checkWifiOnAndConnected() {
    WifiManager wifiMgr = (WifiManager) getSystemService(Context.WIFI_SERVICE);

    if (wifiMgr.isWifiEnabled()) { // Wi-Fi adapter is ON

        WifiInfo wifiInfo = wifiMgr.getConnectionInfo();

        if( wifiInfo.getNetworkId() == -1 ){
            return false; // Not connected to an access point
        }
        return true; // Connected to an access point
    }
    else {
        return false; // Wi-Fi adapter is OFF
    }
}

In API level 29, WifiManager.enableNetwork() method is deprecated. As per Android API documentation(check here):

1. See WifiNetworkSpecifier.Builder#build() for new mechanism to trigger connection to a Wi-Fi network.
2. See addNetworkSuggestions(java.util.List), removeNetworkSuggestions(java.util.List) for new API to add Wi-Fi networks for consideration when auto-connecting to wifi. Compatibility Note: For applications targeting Build.VERSION_CODES.Q or above, this API will always return false.

From API level 29, to connect to WiFi network, you will need to use WifiNetworkSpecifier. You can find example code at https://developer.android.com/reference/android/net/wifi/WifiNetworkSpecifier.Builder.html#build()

Using inline-block allows for white-space in your HTML, This usually equates to .25em (or 4px).

You can either comment out the white-space or, a more commons solution, is to set the parent's font-size to 0 and the reset it back to the required size on the inline-block elements.

You can also use IHtmlHelper.GetEnumSelectList.

    // Summary:
    //     Returns a select list for the given TEnum.
    //
    // Type parameters:
    //   TEnum:
    //     Type to generate a select list for.
    //
    // Returns:
    //     An System.Collections.Generic.IEnumerable`1 containing the select list for the
    //     given TEnum.
    //
    // Exceptions:
    //   T:System.ArgumentException:
    //     Thrown if TEnum is not an System.Enum or if it has a System.FlagsAttribute.
    IEnumerable<SelectListItem> GetEnumSelectList<TEnum>() where TEnum : struct;

You need to cast your activity from getActivity() to AppCompatActivity first. Here's an example:

((AppCompatActivity) getActivity()).getSupportActionBar().setTitle();

The reason you have to cast it is because getActivity() returns a FragmentActivity and you need an AppCompatActivity

In Kotlin:

(activity as AppCompatActivity).supportActionBar?.title = "My Title"

Well, the reason to use the pointer would be exactly the same that the reason to use pointers in C allocated with malloc: if you want your object to live longer than your variable!

It is even highly recommended to NOT use the new operator if you can avoid it. Especially if you use exceptions. In general it is much safer to let the compiler free your objects.

Write-Host can concatenate like this too:

Write-Host $assoc.Id" - "$assoc.Name" - "$assoc.Owner

This is the simplest way, IMHO.

Make sure you wrap the condition in the correct precedence

ng-disabled="((!product.img) || (!product.name))"

For tables with more and large data columns, I prefer:

SELECT 
  tablename.col1,
  tablename.col2,
  tablename.col3,
  ...
FROM
(
  (
    SELECT
      col1
    FROM 
    (
      SELECT col1, ROW_NUMBER() OVER (ORDER BY col1 ASC) AS RowNum
      FROM tablename
      WHERE ([CONDITION])
    )
    AS T1 WHERE T1.RowNum BETWEEN [OFFSET] AND [OFFSET + LIMIT]
  )
  AS T2 INNER JOIN tablename ON T2.col1=tablename.col1
);

-

[CONDITION] can contain any WHERE clause for searching.
[OFFSET] specifies the start,
[LIMIT] the maximum results.

It has much better performance on tables with large data like BLOBs, because the ROW_NUMBER function only has to look through one column, and only the matching rows are returned with all columns.

The thing is that you are using the option -t when running your container.

Could you check if enabling the tty option (see reference) in your docker-compose.yml file the container keeps running?

version: '2'
services:
  ubuntu:
        build: .
        container_name: ubuntu
        volumes:
            - ~/sph/laravel52:/www/laravel
        ports:
          - "80:80"
        tty: true

To initialize to current date, you could do something like:

Date firstDate = new Date();

To get it from String, you could use SimpleDateFormat like:

String dateInString = "10-Jan-2016";
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy");
try {
    Date date = formatter.parse(dateInString);
    System.out.println(date);
    System.out.println(formatter.format(date));
} catch (ParseException e) {
    //handle exception if date is not in "dd-MMM-yyyy" format
}

Beside using loop and for comprehension, you could also use map

lst = [("aaaa8"),("bb8"),("ccc8"),("dddddd8")]
mylst = map(lambda each:each.strip("8"), lst)
print mylst

Try to split the characters into multiple chunks like the query below and try:

Insert into table (clob_column) values ( to_clob( 'chunk 1' ) || to_clob( 'chunk 2' ) );

It worked for me.

hash.collect { |k, v| v }
#returns [["a", "b", "c"], ["b", "c"]] 

Enumerable#collect takes a block, and returns an array of the results of running the block once on every element of the enumerable. So this code just ignores the keys and returns an array of all the values.

The Enumerable module is pretty awesome. Knowing it well can save you lots of time and lots of code.

The syntax to disable an HTML input is as follows:

<input type="text" id="input_id" DISABLED />

If you only want to read the first 999,999 (non-header) rows:

read_csv(..., nrows=999999)

If you only want to read rows 1,000,000 ... 1,999,999

read_csv(..., skiprows=1000000, nrows=999999)

nrows : int, default None Number of rows of file to read. Useful for reading pieces of large files*

skiprows : list-like or integer Row numbers to skip (0-indexed) or number of rows to skip (int) at the start of the file

and for large files, you'll probably also want to use chunksize:

chunksize : int, default None Return TextFileReader object for iteration

pandas.io.parsers.read_csv documentation

Make your Project and Workspace to point to JDK7 which will resolve the issue. https://developers.google.com/eclipse/docs/jdk_compliance has given ways to modify Compliance and Facet level changes.

webDriver.findElement(By.xpath("//*[@id='element']")).isDisplayed();

This is how I would do it, in order to get in the var4 restriction:

dfr<-data.frame(var1=rnorm(100), var2=rnorm(100), var3=rnorm(100, 160, 10), var4=rnorm(100, 27, 6))
plot( subset( dfr, var3 < 155 & var4 > 27, select = c( var1, var2 ) ) )

Rgds, Rainer

Another option is to set the spring.config.location through @TestPropertySource:

@TestPropertySource(properties = { "spring.config.location = classpath:<path-to-your-yml-file>" }

I prefer writing small one liners for each replace I have to do instead of making a more generic and complex code. E.g.:

This replaces all underscores with hyphens in any non-hidden file in the current directory

import os
[os.rename(f, f.replace('_', '-')) for f in os.listdir('.') if not f.startswith('.')]

Though I consider myself a .NET developer, I don't prefer calling it that way. c# developer sounds much better and is a much clearer message: it says that I understand both C# and .NET (because C# and .NET are tied together). I could call myself a VB.NET developer, same story there.

What is a .NET developer? I don't know, because you cannot develop with .NET, if develop is a synonym for programming. .NET is the environment, the libraries, the languages, the CLR, the CLI, JIT, the LR, the BCL, the IDE and the IL. I find it a poor job description, but it may also mean that they don't really care: either you are an F#, a C#, an IronPython or a VB.NET developer, they're all implicitly and secretly .NET developers.

What do you need? A solid understanding why ".NET" is a poor job description and ask for a more precise one. Nobody can know everything of .NET, it is simply too wide. Orientate yourself to all sides of it and do both ASP.NET and WinForms. Don't forget Silverlight, WPF etc and two or three .NET languages.

In other words: know the forest by knowing what trees and flowers it habitats and specialize in knowing a few beautiful and common ones well.

Building on the accepted answer.

If the Object has properties you want to call say .properties() try!

var keys = Object.keys(myJSONObject);

for (var j=0; j < keys.length; j++) {
  Object[keys[j]].properties();
}

You are missing an include : #include <stdlib.h>, so GCC creates an implicit declaration of atof and atod, leading to garbage values.

And the format specifier for double is %f, not %d (that is for integers).

#include <stdlib.h>
#include <stdio.h>

int main()
{
  char *test = "12.11";
  double temp = strtod(test,NULL);
  float ftemp = atof(test);
  printf("price: %f, %f",temp,ftemp);
  return 0;
}
/* Output */
price: 12.110000, 12.110000

I rewritten a little the maklemenz's answer:

private static Method m;

static {
    try {
        m = Throwable.class.getDeclaredMethod(
            "getStackTraceElement",
            int.class
        );
    }
    catch (final NoSuchMethodException e) {
        throw new NoSuchMethodUncheckedException(e);
    }
    catch (final SecurityException e) {
        throw new SecurityUncheckedException(e);
    }
}


public static String getMethodName(int depth) {
    StackTraceElement element;

    final boolean accessible = m.isAccessible();
    m.setAccessible(true);

    try {
        element = (StackTraceElement) m.invoke(new Throwable(), 1 + depth);
    }
    catch (final IllegalAccessException e) {
        throw new IllegalAccessUncheckedException(e);
    }
    catch (final InvocationTargetException e) {
        throw new InvocationTargetUncheckedException(e);
    }
    finally {
        m.setAccessible(accessible);
    }

    return element.getMethodName();
}

public static String getMethodName() {
    return getMethodName(1);
}

These are the buttons UP/DOWN

You can use the following code:

playButton = (Button) findViewById(R.id.play);
playButton.setVisibility(View.VISIBLE);
playButton.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        //when play is clicked show stop button and hide play button
        playButton.setVisibility(View.GONE);
        stopButton.setVisibility(View.VISIBLE);
    }
});

var top = ($(".apps_intro_wrapper_inner").offset() || { "top": NaN }).top;   
if (!isNaN(top)) {
$("#app_scroler").click(function () {   
$('html, body').animate({
            scrollTop: top
        }, 100);
    });
}

if you want to scroll a little above or below from specific div that add value to the top like this.....like I add 800

var top = ($(".apps_intro_wrapper_inner").offset() || { "top": NaN }).top + 800;

Avoid the for loopfor XY in xy: Instead read up how the numpy arrays are indexed and handled.

Numpy Indexing

Also try and avoid .txt files if you are dealing with matrices. Try to use .csv or .npy files, and use Pandas dataframework to load them just for clarity.

I also encountered the same problem and passed the following way to solve this problem.

step 1:

$ npm install --save-dev http-proxy-middleware

step 2:

add a proxy when i fetch web api, if you use lite-server you can add a file bs-config.js .

//file: bs-config.js
var proxyMiddleware = require('http-proxy-middleware');

module.exports = {
    server: {
        middleware: {
            1: proxyMiddleware('/example-api', {
                target: 'http://api.example.com',
                changeOrigin: true,
                pathRewrite: {
                '^/news-at-api': '/api'
                }
            })
        }
    }
};

hope this helps.

If you're only running the commands in one shot then you can just use subprocess.check_output convenience function:

def subprocess_cmd(command):
    output = subprocess.check_output(command, shell=True)
    print output

tell you the true, I still don't get what you need, but

window.location(url);

should be

window.location = url;

a search on window.location reference will tell you that.

This should do it, removing characters from the left by one or however many needed.

lEFT(columnX,LEN(columnX) - 1) AS NewColumnName

I Just put my view background (color code) as ClipArt og Image background, and it looks like transparent or no background where both have the same color as background.

Try pip uninstall jupyter_core. Details below:

I ran into a similar issue when my jupyter notebook only showed Python 2 notebook. (no Python 3 notebook)

I tried to uninstall jupyter by pip unistall jupyter, pi3 uninstall jupyter, and the suggested pip-autoremove jupyter -y.

Nothing worked. I ran which jupyter, and got /home/ankit/.local/bin/jupyter

The file /home/ankit/.local/bin/jupyter was just a simple python code:

#!/usr/bin/python3

# -*- coding: utf-8 -*-
import re
import sys

from jupyter_core.command import main

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
    sys.exit(main())

Tried to uninstall the module jupyter_core by pip uninstall jupyter_core and it worked.

Reinstalled jupyter with pip3 install jupyter and everything was back to normal.

Both commands are correct

php_value post_max_size 30M 

php_value upload_max_filesize 30M 

BUT to use the .htaccess you have to enable rewrite_module in Apache config file. In httpd.conf find this line:

# LoadModule rewrite_module modules/mod_rewrite.so

and remove the #.

Why use ternary operators and if-else when you can simply do this

#define sgn(x) x==0 ? 0 : x/abs(x)

I suppose rgba() would work here. After all, browser support for both box-shadow and rgba() is roughly the same.

/* 50% black box shadow */
box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);

div {_x000D_
    width: 200px;_x000D_
    height: 50px;_x000D_
    line-height: 50px;_x000D_
    text-align: center;_x000D_
    color: white;_x000D_
    background-color: red;_x000D_
    margin: 10px;_x000D_
}_x000D_
_x000D_
div.a {_x000D_
  box-shadow: 10px 10px 10px #000;_x000D_
}_x000D_
_x000D_
div.b {_x000D_
  box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);_x000D_
}

<div class="a">100% black shadow</div>_x000D_
<div class="b">50% black shadow</div>

The correct way to change directories is actually with process.chdir(directory). Here's an example from the documentation:

console.log('Starting directory: ' + process.cwd());
try {
  process.chdir('/tmp');
  console.log('New directory: ' + process.cwd());
}
catch (err) {
  console.log('chdir: ' + err);
}

This is also testable in the Node.js REPL:

[monitor@s2 ~]$ node
> process.cwd()
'/home/monitor'
> process.chdir('../');
undefined
> process.cwd();
'/home'

you can use this function. I have used it in my project.

public String getDistance(LatLng my_latlong, LatLng frnd_latlong) {
    Location l1 = new Location("One");
    l1.setLatitude(my_latlong.latitude);
    l1.setLongitude(my_latlong.longitude);

    Location l2 = new Location("Two");
    l2.setLatitude(frnd_latlong.latitude);
    l2.setLongitude(frnd_latlong.longitude);

    float distance = l1.distanceTo(l2);
    String dist = distance + " M";

    if (distance > 1000.0f) {
        distance = distance / 1000.0f;
        dist = distance + " KM";
    }
    return dist;
}

If you just want to compute (column a) % (column b), you don't need apply, just do it directly:

In [7]: df['a'] % df['c']                                                                                                                                                        
Out[7]: 
0   -1.132022                                                                                                                                                                    
1   -0.939493                                                                                                                                                                    
2    0.201931                                                                                                                                                                    
3    0.511374                                                                                                                                                                    
4   -0.694647                                                                                                                                                                    
5   -0.023486                                                                                                                                                                    
Name: a

You can also use this:

DF[paste0("stu",c(2,3,5,9)), ]

If your script is a directory or ZIP file rather than a single python file, __main__.py will be executed when the "script" is passed as an argument to the python interpreter.

To be complete, a short introduction for "shell noobs":

First of all, start your shell - you can find it inside the common desktop environments under the name "Terminal" or "Shell" somewhere in the desktops application menu.

You can also try using the key combo CTRL+F2, followed by one of those commands (depending on the desktop envrionment you're using) and the ENTER key:

xfce4-terminal
gnome-console
terminal
rxvt
konsole

If all of the above fail, try using xterm - it'll work in most cases.

Hint for the following commands: Execute the commands without the $ - it's just a marker identifying that you're on the shell.

After that just fire up mongod with the --version flag:

$ mongod --version

It shows you then something like

$ mongod --version
db version v2.4.6
Wed Oct 16 16:17:00.241 git version: nogitversion

To update it just execute

$ sudo apt-get update

and then

$ sudo apt-get install mongodb

I faced the same issue, and I tried following things, which didn't work:

1. Deleting the existing AVD and creating a new one.

2. Uninstall latest-existing and older versions (if you have) of SDK-Tools and SDK-Build-Tools and installing new ones.

What worked for me was uninstalling and re-installing latest PLATFORM-TOOLS, where adb actually resides.

lots of methods available in php to read a file like exec, file_get_contents, curl and fopen but it depend on your requirement and file permission

Visit this file_get_contents vs cUrl

Basically file_get_contents for for you

$data = file_get_contents($file_url);

Copying a string can be done two ways either copy the location a = "a" b = a or you can clone which means b wont get affected when a is changed which is done by a = 'a' b = a[:]

So here I am answering my own question. I have got answers to all my queries from people who have build push notification services in the past.

Update (May 2018): Here is a comprehensive and a very well written doc on web push notification from Google.

Answer to the original questions asked 3 years ago:

1. Can we use GCM/APNS to send push notification to all Web Browsers including Firefox & Safari?

Answer: Google has deprecated GCM as of April 2018. You can now use Firebase Cloud Messaging (FCM). This supports all platforms including web browsers.

2. If not via GCM can we have our own back-end to do the same?

Answer: Yes, push notification can be sent from our own back-end. Support for the same has come to all major browsers.

Check this codelab from Google to better understand the implementation.

Some Tutorials:

• Implementing push notification in Django Here.
• Using flask to send push notification Here & Here.
• Sending push notifcaiton from Nodejs Here
• Sending push notification using php Here & Here
• Sending push notification from Wordpress. Here & Here
• Sending push notification from Drupal. Here

Implementing own backend in various programming languages.:

• NodeJs.
• PHP
• Rails
• Python
• Go Lang - this and this

Further Readings: - - Documentation from Firefox website can be read here. - A very good overview of Web Push by Google can be found here. - An FAQ answering most common confusions and questions.

Are there any free services to do the same? There are some companies that provide a similar solution in free, freemium and paid models. Am listing few below:

1. https://onesignal.com/ (Free | Support all platforms)
2. https://firebase.google.com/products/cloud-messaging/ (Free)
3. https://clevertap.com/ (Has free plan)
4. https://goroost.com/

Note: When choosing a free service remember to read the TOS. Free services often work by collecting user data for various purposes including analytics.

Apart from that, you need to have HTTPS to send push notifications. However, you can get https freely via letsencrypt.org

Jquery:

var afterDot = value.substr(value.lastIndexOf('_') + 1);

Javascript:

var myString = 'asd/f/df/xc/asd/test.jpg'
var parts    = myString.split('/');
var answer   = parts[parts.length - 1];
console.log(answer);

Replace '_' || '/' to your own need

There are a few packages for prettifying HTML. You can find them by searching the Atom package archive:

1. Navigate to the Atom site
2. Click the Packages link
3. Enter "prettify" in the search box

Or just go to this link: https://atom.io/packages/search?q=prettify

Once you've selected a package that does what you want you can install it by using the command: apm install [package name] from the command line or install it using the interface in Preferences.

When the package is installed, follow its instructions for how to activate its capabilities.

This is a possible generic implementation using a bit of reflection (pseudo-code, don't have VS now):

public class DtoMapper<DtoType>
{
    Dictionary<string,PropertyInfo> properties;

    public DtoMapper()
    {
        // Cache property infos
        var t = typeof(DtoType);
        properties = t.GetProperties().ToDictionary(p => p.Name, p => p);
     }

    public DtoType Map(Dto dto)
    {
        var instance = Activator.CreateInstance(typeOf(DtoType));

        foreach(var p in properties)
        {
            p.SetProperty(
                instance, 
                Convert.Type(
                    p.PropertyType, 
                    dto.Items[Array.IndexOf(dto.ItemsNames, p.Name)]);

            return instance;
        }
    }

Usage:

var mapper = new DtoMapper<Model>();
var modelInstance = mapper.Map(dto);

This will be slow when you create the mapper instance but much faster later.

.NetCore is a fine release from Microsoft and Visual Studio's latest version is also available for mac but there is still some limitation. Like for creating GUI based application on .net core you have to write code manually for everything. Like in older version of VS we just drag and drop the things and magic happens. But in VS latest version for mac every code has to be written manually. However you can make web application and console application easily on VS for mac.

I think it is important to mention, now that this question is over 1 year old, that Socket.IO has since come out and seems to be the primary way to work with sockets in the browser now; it is also compatible with Node.js as far as I know.

Note that you can use other tricks like :

-- One or more wildcard:
       .../Downloads20*/*.csv
--  braces and brackets   
       .../Downloads201[1-5]/book.csv
       .../Downloads201{11,15,19,99}/book.csv

Just note the difference between the range operators:

3..10  # includes 10
3...10 # doesn't include 10

You can simply achieve it by

SELECT *
FROM test
WHERE ARIDNR IN
    (SELECT ARIDNR FROM test
     GROUP BY ARIDNR
     HAVING COUNT(*) > 1)
GROUP BY ARIDNR, LIEFNR;

Thanks.

Both are 0-based, but the start is inclusive and the end is exclusive. This ensures the resulting string is of length start - end.

To make life easier for substring operation, imagine that characters are between indexes.

0 1 2 3 4 5 6 7 8 9 10  <- available indexes for substring 
 u n i v E R S i t y
        ?     ?
      start  end --> range of "E R S"

Quoting the docs:

The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. Thus the length of the substring is endIndex-beginIndex.

both your conditions are the same:

if(s < f) {     calc = f - s;     n = s; }else if(f > s){     calc =  s - f;     n = f;  } 

so

if(s < f)   

and

}else if(f > s){ 

are the same

change to

}else if(f < s){ 

One liner (Linux)

unzip -p mylib.jar META-INF/MANIFEST.MF

This prints the content of MANIFEST.MF file to stdout (hopefully there is one in your jar file :)

Depending on what built your package, you will find the JDK version in Created-By or Build-Jdk key.

You need to encode your parameter's values before concatenating them to URL.
Backslash \ is special character which have to be escaped as %5C

Escaping example:

String paramValue = "param\\with\\backslash";
String yourURLStr = "http://host.com?param=" + java.net.URLEncoder.encode(paramValue, "UTF-8");
java.net.URL url = new java.net.URL(yourURLStr);

The result is http://host.com?param=param%5Cwith%5Cbackslash which is properly formatted url string.

bash to get file name

fspec="/exp/home1/abc.txt" 
filename="${fspec##*/}"  # get filename
dirname="${fspec%/*}" # get directory/path name

other ways

awk

$ echo $fspec | awk -F"/" '{print $NF}'
abc.txt

sed

$ echo $fspec | sed 's/.*\///'
abc.txt

using IFS

$ IFS="/"
$ set -- $fspec
$ eval echo \${${#@}}
abc.txt

I meet this error when integrate modal bootstrap in angular.

This is my solution to solve this issue.

I share for whom concern.

First step you need install jquery and bootstrap by npm command.

Second you need add declare var $ : any; in component

And use can use $('#myModal').modal('hide'); on onSave() method

Demo https://stackblitz.com/edit/angular-model-bootstrap-close?file=src/app/app.component.ts

You can simply figure out :

git log --cherry master...experimental

--cherry option is a synonym for --right-only --cherry-mark --no-merges

git-log man page said

it's useful to limit the output to the commits on our side and mark those that have been applied to the other side of a forked history with git log --cherry upstream...mybranch, similar to git cherry upstream mybranch.

FYI. --cherry-pick omits equivalent commits but --cherry-marks doesn't. It's useful to find rebase and force updated changes between upstream and co-working public branch

Use dict.setdefault():

dic.setdefault(key,[]).append(value)

help(dict.setdefault):

    setdefault(...)
        D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D

install urllib3

!pip3 install urllib3

import urllib3

than install it

!pip3 install selenium

import selenium

You maybe wanted to do the following:

foreach($user->data as $mydata)

    {
         echo $mydata->name . "\n";
         foreach($mydata->values as $values)
         {
              echo $values->value . "\n";
         }
    }        

android:hint="text" provides an info for user that what he need to fill in particular editText

for example :- i have two edittext one for numeric value and other for string value . we can set a hint for user so he can understand that what value he needs to give

android:hint="Please enter phone number"
android:hint="Enter name" 

after running app these two edittext will show the entered hint ,after click on edit text it goes and user can enter what he want (see luxurymode image)

All of the prior solutions get at the point a little, however, they just don't copy everything over. I created a PHP function (albeit somewhat lengthy) that copies everything including tables, foreign keys, data, views, procedures, functions, triggers, and events. Here is the code:

/* This function takes the database connection, an existing database, and the new database and duplicates everything in the new database. */
function copyDatabase($c, $oldDB, $newDB) {

    // creates the schema if it does not exist
    $schema = "CREATE SCHEMA IF NOT EXISTS {$newDB};";
    mysqli_query($c, $schema);

    // selects the new schema
    mysqli_select_db($c, $newDB);

    // gets all tables in the old schema
    $tables = "SELECT table_name
               FROM information_schema.tables
               WHERE table_schema = '{$oldDB}'
               AND table_type = 'BASE TABLE'";
    $results = mysqli_query($c, $tables);

    // checks if any tables were returned and recreates them in the new schema, adds the foreign keys, and inserts the associated data
    if (mysqli_num_rows($results) > 0) {

        // recreates all tables first
        while ($row = mysqli_fetch_array($results)) {
            $table = "CREATE TABLE {$newDB}.{$row[0]} LIKE {$oldDB}.{$row[0]}";
            mysqli_query($c, $table);
        }

        // resets the results to loop through again
        mysqli_data_seek($results, 0);

        // loops through each table to add foreign key and insert data
        while ($row = mysqli_fetch_array($results)) {

            // inserts the data into each table
            $data = "INSERT IGNORE INTO {$newDB}.{$row[0]} SELECT * FROM {$oldDB}.{$row[0]}";
            mysqli_query($c, $data);

            // gets all foreign keys for a particular table in the old schema
            $fks = "SELECT constraint_name, column_name, table_name, referenced_table_name, referenced_column_name
                    FROM information_schema.key_column_usage
                    WHERE referenced_table_name IS NOT NULL
                    AND table_schema = '{$oldDB}'
                    AND table_name = '{$row[0]}'";
            $fkResults = mysqli_query($c, $fks);

            // checks if any foreign keys were returned and recreates them in the new schema
            // Note: ON UPDATE and ON DELETE are not pulled from the original so you would have to change this to your liking
            if (mysqli_num_rows($fkResults) > 0) {
                while ($fkRow = mysqli_fetch_array($fkResults)) {
                    $fkQuery = "ALTER TABLE {$newDB}.{$row[0]}                              
                                ADD CONSTRAINT {$fkRow[0]}
                                FOREIGN KEY ({$fkRow[1]}) REFERENCES {$newDB}.{$fkRow[3]}({$fkRow[1]})
                                ON UPDATE CASCADE
                                ON DELETE CASCADE;";
                    mysqli_query($c, $fkQuery);
                }
            }
        }   
    }

    // gets all views in the old schema
    $views = "SHOW FULL TABLES IN {$oldDB} WHERE table_type LIKE 'VIEW'";                
    $results = mysqli_query($c, $views);

    // checks if any views were returned and recreates them in the new schema
    if (mysqli_num_rows($results) > 0) {
        while ($row = mysqli_fetch_array($results)) {
            $view = "SHOW CREATE VIEW {$oldDB}.{$row[0]}";
            $viewResults = mysqli_query($c, $view);
            $viewRow = mysqli_fetch_array($viewResults);
            mysqli_query($c, preg_replace("/CREATE(.*?)VIEW/", "CREATE VIEW", str_replace($oldDB, $newDB, $viewRow[1])));
        }
    }

    // gets all triggers in the old schema
    $triggers = "SELECT trigger_name, action_timing, event_manipulation, event_object_table, created
                 FROM information_schema.triggers
                 WHERE trigger_schema = '{$oldDB}'";                 
    $results = mysqli_query($c, $triggers);

    // checks if any triggers were returned and recreates them in the new schema
    if (mysqli_num_rows($results) > 0) {
        while ($row = mysqli_fetch_array($results)) {
            $trigger = "SHOW CREATE TRIGGER {$oldDB}.{$row[0]}";
            $triggerResults = mysqli_query($c, $trigger);
            $triggerRow = mysqli_fetch_array($triggerResults);
            mysqli_query($c, str_replace($oldDB, $newDB, $triggerRow[2]));
        }
    }

    // gets all procedures in the old schema
    $procedures = "SHOW PROCEDURE STATUS WHERE db = '{$oldDB}'";
    $results = mysqli_query($c, $procedures);

    // checks if any procedures were returned and recreates them in the new schema
    if (mysqli_num_rows($results) > 0) {
        while ($row = mysqli_fetch_array($results)) {
            $procedure = "SHOW CREATE PROCEDURE {$oldDB}.{$row[1]}";
            $procedureResults = mysqli_query($c, $procedure);
            $procedureRow = mysqli_fetch_array($procedureResults);
            mysqli_query($c, str_replace($oldDB, $newDB, $procedureRow[2]));
        }
    }

    // gets all functions in the old schema
    $functions = "SHOW FUNCTION STATUS WHERE db = '{$oldDB}'";
    $results = mysqli_query($c, $functions);

    // checks if any functions were returned and recreates them in the new schema
    if (mysqli_num_rows($results) > 0) {
        while ($row = mysqli_fetch_array($results)) {
            $function = "SHOW CREATE FUNCTION {$oldDB}.{$row[1]}";
            $functionResults = mysqli_query($c, $function);
            $functionRow = mysqli_fetch_array($functionResults);
            mysqli_query($c, str_replace($oldDB, $newDB, $functionRow[2]));
        }
    }

    // selects the old schema (a must for copying events)
    mysqli_select_db($c, $oldDB);

    // gets all events in the old schema
    $query = "SHOW EVENTS
              WHERE db = '{$oldDB}';";
    $results = mysqli_query($c, $query);

    // selects the new schema again
    mysqli_select_db($c, $newDB);

    // checks if any events were returned and recreates them in the new schema
    if (mysqli_num_rows($results) > 0) {
        while ($row = mysqli_fetch_array($results)) {
            $event = "SHOW CREATE EVENT {$oldDB}.{$row[1]}";
            $eventResults = mysqli_query($c, $event);
            $eventRow = mysqli_fetch_array($eventResults);
            mysqli_query($c, str_replace($oldDB, $newDB, $eventRow[3]));
        }
    }
}

Depending how you want to implement it (if there was a specific location you wanted the scripts) you could implement a @section within your _Layout which would enable you to add additional scripts from the view itself, while still retaining structure. e.g.

_Layout

<!DOCTYPE html>
<html>
  <head>
    <title>...</title>
    <script src="@Url.Content("~/Scripts/jquery.min.js")"></script>
    @RenderSection("Scripts",false/*required*/)
  </head>
  <body>
    @RenderBody()
  </body>
</html>

View

@model MyNamespace.ViewModels.WhateverViewModel
@section Scripts
{
  <script src="@Url.Content("~/Scripts/jqueryFoo.js")"></script>
}

Otherwise, what you have is fine. If you don't mind it being "inline" with the view that was output, you can place the <script> declaration within the view.

You need to make sure requestAnimFrame stops being called once game == 1. A break statement only exits a traditional loop (e.g. while()).

function loop() {
    if (isPlaying) {
        jet1.draw();
        drawAllEnemies();
        if (game != 1) {
            requestAnimFrame(loop);
        }
    }
}

Or alternatively you could simply skip the second if condition and change the first condition to if (isPlaying && game !== 1). You would have to make a variable called game and give it a value of 0. Add 1 to it every game.

For TypeScript

  capitalizeFirstLetter(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
  }

The simple answer is that you can't. box-shadow applies to the whole element only. You could use a different approach and use ::before in CSS to insert an 1-pixel high element into header nav and set the box-shadow on that instead.

The following Swift 5 Playground code shows a possible way to solve your problem using JSONSerialization and URLSession:

import UIKit
import PlaygroundSupport

PlaygroundPage.current.needsIndefiniteExecution = true

let url = URL(string: "http://localhost:8080/new")!
let jsonDict = ["firstName": "Jane", "lastName": "Doe"]
let jsonData = try! JSONSerialization.data(withJSONObject: jsonDict, options: [])

var request = URLRequest(url: url)
request.httpMethod = "post"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = jsonData

let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
    if let error = error {
        print("error:", error)
        return
    }

    do {
        guard let data = data else { return }
        guard let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: AnyObject] else { return }
        print("json:", json)
    } catch {
        print("error:", error)
    }
}

task.resume()

Take a look at this example. This query should work:

var leftFinal = from left in lefts
                join right in rights on left equals right.Left into leftRights
                from leftRight in leftRights.DefaultIfEmpty()
                select new { LeftId = left.Id, RightId = left.Key==leftRight.Key ? leftRight.Id : 0 };

Your Ubuntu OS need to install library for mysql client sudo apt-get install libmysqlclient-dev

After That just install bundle or bundle install

Set your own content container class with 1000px width property and then use container-fluid boostrap class instead of container.

Works but might not be the best solution.

If you need to mock a static method, it is a strong indicator for a bad design. Usually, you mock the dependency of your class-under-test. If your class-under-test refers to a static method - like java.util.Math#sin for example - it means the class-under-test needs exactly this implementation (of accuracy vs. speed for example). If you want to abstract from a concrete sinus implementation you probably need an Interface (you see where this is going to)?

core.autocrlf value does not depend on OS type but on Windows default value is true and for Linux - input. I explored 3 possible values for commit and checkout cases and this is the resulting table:

+------------------------------------------------------------+
¦ core.autocrlf ¦     false    ¦     input    ¦     true     ¦
¦---------------+--------------+--------------+--------------¦
¦               ¦ LF   => LF   ¦ LF   => LF   ¦ LF   => LF   ¦
¦ git commit    ¦ CR   => CR   ¦ CR   => CR   ¦ CR   => CR   ¦
¦               ¦ CRLF => CRLF ¦ CRLF => LF   ¦ CRLF => LF   ¦
¦---------------+--------------+--------------+--------------¦
¦               ¦ LF   => LF   ¦ LF   => LF   ¦ LF   => CRLF ¦
¦ git checkout  ¦ CR   => CR   ¦ CR   => CR   ¦ CR   => CR   ¦
¦               ¦ CRLF => CRLF ¦ CRLF => CRLF ¦ CRLF => CRLF ¦
+------------------------------------------------------------+

If you wish your class to be compatible with the Java Beans specification, so that tools utilizing reflection (e.g. JavaBuilders, JGoodies Binding) can recognize boolean getters, either use getXXXX() or isXXXX() as a method name. From the Java Beans spec:

8.3.2 Boolean properties

In addition, for boolean properties, we allow a getter method to match the pattern:

public boolean is<PropertyName>();

This “is<PropertyName>” method may be provided instead of a “get<PropertyName>” method, or it may be provided in addition to a “get<PropertyName>” method. In either case, if the “is<PropertyName>” method is present for a boolean property then we will use the “is<PropertyName>” method to read the property value. An example boolean property might be:

public boolean isMarsupial();
public void setMarsupial(boolean m);

If you want to set something on a timer, you can use JavaScript's setTimeout or setInterval methods:

setTimeout ( expression, timeout );
setInterval ( expression, interval );

Where expression is a function and timeout and interval are integers in milliseconds. setTimeout runs the timer once and runs the expression once whereas setInterval will run the expression every time the interval passes.

So in your case it would work something like this:

setInterval(function() {
    //call $.ajax here
}, 5000); //5 seconds

As far as the Ajax goes, see jQuery's ajax() method. If you run an interval, there is nothing stopping you from calling the same ajax() from other places in your code.

If what you want is for an interval to run every 30 seconds until a user initiates a form submission...and then create a new interval after that, that is also possible:

setInterval() returns an integer which is the ID of the interval.

var id = setInterval(function() {
    //call $.ajax here
}, 30000); // 30 seconds

If you store that ID in a variable, you can then call clearInterval(id) which will stop the progression.

Then you can reinstantiate the setInterval() call after you've completed your ajax form submission.

A bit unrelated answer to OP but for people like me with a somewhat similar problem.

Use Case: Ubuntu (C, Clion, Auto-completion):

I had the same error,

CMake Error: Cannot determine link language for target "hello".

set_target_properties(hello PROPERTIES LINKER_LANGUAGE C) help fixes that problem but the headers aren't included to the project and the autocompletion wont work.

This is what i had

cmake_minimum_required(VERSION 3.5)

project(hello)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES ./)

add_executable(hello ${SOURCE_FILES})

set_target_properties(hello PROPERTIES LINKER_LANGUAGE C)

No errors but not what i needed, i realized including a single file as source will get me autocompletion as well as it will set the linker to C.

cmake_minimum_required(VERSION 3.5)

project(hello)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES ./1_helloworld.c)

add_executable(hello ${SOURCE_FILES})

The problem is that there is no class called com.service.SempediaSearchManager on your webapp's classpath. The most likely root causes are:

• the fully qualified classname is incorrect in /WEB-INF/Sempedia-service.xml; i.e. the class name is something else,

• the class is not in your webapp's /WEB-INF/classes directory tree or a JAR file in the /WEB-INF/lib directory.

EDIT : The only other thing that I can think of is that the ClassDefNotFoundException may actually be a result of an earlier class loading / static initialization problem. Check your log files for the first stack trace, and look the nested exceptions, i.e. the "caused by" chain. [If a class load fails one time and you or Spring call Class.forName() again for some reason, then Java won't actually try to load a second time. Instead you will get a ClassDefNotFoundException stack trace that does not explain the real cause of the original failure.]

If you are still stumped, you should take Eclipse out of the picture. Create the WAR file in the form that you are eventually going to deploy it, then from the command line:

1. manually shutdown Tomcat

2. clean out your Tomcat webapp directory,

3. copy the WAR file into the webapp directory,

4. start Tomcat.

If that doesn't solve the problem directly, look at the deployed webapp directory on Tomcat to verify that the "missing" class is in the right place.

I had the similar issue using Flurl.Http:

Flurl.Http.FlurlHttpException: Call failed. Cannot send a content-body with this verb-type. GET http://******:8301/api/v1/agents/**** ---> System.Net.ProtocolViolationException: Cannot send a content-body with this verb-type.

The problem was I used .WithHeader("Content-Type", "application/json") when creating IFlurlRequest.

Looper.myLooper() == Looper.getMainLooper()

if this returns true, then you're on the UI thread!

I was having the same issue. So I went to the Java options through Control Panel. Copied the web address that I was having an issue with to the exceptions and it was fixed.

If you're interested in visible by the user:

function isVisible(elem) {
    if (!(elem instanceof Element)) throw Error('DomUtil: elem is not an element.');
    const style = getComputedStyle(elem);
    if (style.display === 'none') return false;
    if (style.visibility !== 'visible') return false;
    if (style.opacity < 0.1) return false;
    if (elem.offsetWidth + elem.offsetHeight + elem.getBoundingClientRect().height +
        elem.getBoundingClientRect().width === 0) {
        return false;
    }
    const elemCenter   = {
        x: elem.getBoundingClientRect().left + elem.offsetWidth / 2,
        y: elem.getBoundingClientRect().top + elem.offsetHeight / 2
    };
    if (elemCenter.x < 0) return false;
    if (elemCenter.x > (document.documentElement.clientWidth || window.innerWidth)) return false;
    if (elemCenter.y < 0) return false;
    if (elemCenter.y > (document.documentElement.clientHeight || window.innerHeight)) return false;
    let pointContainer = document.elementFromPoint(elemCenter.x, elemCenter.y);
    do {
        if (pointContainer === elem) return true;
    } while (pointContainer = pointContainer.parentNode);
    return false;
}

Tested on (using mocha terminology):

describe.only('visibility', function () {
    let div, visible, notVisible, inViewport, leftOfViewport, rightOfViewport, aboveViewport,
        belowViewport, notDisplayed, zeroOpacity, zIndex1, zIndex2;
    before(() => {
        div = document.createElement('div');
        document.querySelector('body').appendChild(div);
        div.appendChild(visible = document.createElement('div'));
        visible.style       = 'border: 1px solid black; margin: 5px; display: inline-block;';
        visible.textContent = 'visible';
        div.appendChild(inViewport = visible.cloneNode(false));
        inViewport.textContent = 'inViewport';
        div.appendChild(notDisplayed = visible.cloneNode(false));
        notDisplayed.style.display = 'none';
        notDisplayed.textContent   = 'notDisplayed';
        div.appendChild(notVisible = visible.cloneNode(false));
        notVisible.style.visibility = 'hidden';
        notVisible.textContent      = 'notVisible';
        div.appendChild(leftOfViewport = visible.cloneNode(false));
        leftOfViewport.style.position = 'absolute';
        leftOfViewport.style.right = '100000px';
        leftOfViewport.textContent = 'leftOfViewport';
        div.appendChild(rightOfViewport = leftOfViewport.cloneNode(false));
        rightOfViewport.style.right       = '0';
        rightOfViewport.style.left       = '100000px';
        rightOfViewport.textContent = 'rightOfViewport';
        div.appendChild(aboveViewport = leftOfViewport.cloneNode(false));
        aboveViewport.style.right       = '0';
        aboveViewport.style.bottom       = '100000px';
        aboveViewport.textContent = 'aboveViewport';
        div.appendChild(belowViewport = leftOfViewport.cloneNode(false));
        belowViewport.style.right       = '0';
        belowViewport.style.top       = '100000px';
        belowViewport.textContent = 'belowViewport';
        div.appendChild(zeroOpacity = visible.cloneNode(false));
        zeroOpacity.textContent   = 'zeroOpacity';
        zeroOpacity.style.opacity = '0';
        div.appendChild(zIndex1 = visible.cloneNode(false));
        zIndex1.textContent = 'zIndex1';
        zIndex1.style.position = 'absolute';
        zIndex1.style.left = zIndex1.style.top = zIndex1.style.width = zIndex1.style.height = '100px';
        zIndex1.style.zIndex = '1';
        div.appendChild(zIndex2 = zIndex1.cloneNode(false));
        zIndex2.textContent = 'zIndex2';
        zIndex2.style.left = zIndex2.style.top = '90px';
        zIndex2.style.width = zIndex2.style.height = '120px';
        zIndex2.style.backgroundColor = 'red';
        zIndex2.style.zIndex = '2';
    });
    after(() => {
        div.parentNode.removeChild(div);
    });
    it('isVisible = true', () => {
        expect(isVisible(div)).to.be.true;
        expect(isVisible(visible)).to.be.true;
        expect(isVisible(inViewport)).to.be.true;
        expect(isVisible(zIndex2)).to.be.true;
    });
    it('isVisible = false', () => {
        expect(isVisible(notDisplayed)).to.be.false;
        expect(isVisible(notVisible)).to.be.false;
        expect(isVisible(document.createElement('div'))).to.be.false;
        expect(isVisible(zIndex1)).to.be.false;
        expect(isVisible(zeroOpacity)).to.be.false;
        expect(isVisible(leftOfViewport)).to.be.false;
        expect(isVisible(rightOfViewport)).to.be.false;
        expect(isVisible(aboveViewport)).to.be.false;
        expect(isVisible(belowViewport)).to.be.false;
    });
});

With /^[a-zA-Z]/ you only check the first character:

• ^: Assert position at the beginning of the string
• [a-zA-Z]: Match a single character present in the list below:
  • a-z: A character in the range between "a" and "z"
  • A-Z: A character in the range between "A" and "Z"

If you want to check if all characters are letters, use this instead:

/^[a-zA-Z]+$/.test(str);

• ^: Assert position at the beginning of the string
• [a-zA-Z]: Match a single character present in the list below:
  • +: Between one and unlimited times, as many as possible, giving back as needed (greedy)
  • a-z: A character in the range between "a" and "z"
  • A-Z: A character in the range between "A" and "Z"
• $: Assert position at the end of the string (or before the line break at the end of the string, if any)

Or, using the case-insensitive flag i, you could simplify it to

/^[a-z]+$/i.test(str);

Or, since you only want to test, and not match, you could check for the opposite, and negate it:

!/[^a-z]/i.test(str);

You can call sortable on a <tbody> instead of on the individual rows.

<table>
    <tbody>
        <tr> 
            <td>1</td>
            <td>2</td>
        </tr>
        <tr>
            <td>3</td>
            <td>4</td> 
        </tr>
        <tr>
            <td>5</td>
            <td>6</td>
        </tr>  
    </tbody>    
</table>?

<script>
    $('tbody').sortable();
</script> 

$(function() {_x000D_
  $( "tbody" ).sortable();_x000D_
});

 _x000D_
table {_x000D_
    border-spacing: collapse;_x000D_
    border-spacing: 0;_x000D_
}_x000D_
td {_x000D_
    width: 50px;_x000D_
    height: 25px;_x000D_
    border: 1px solid black;_x000D_
}

 _x000D_
_x000D_
<link href="//code.jquery.com/ui/1.11.1/themes/smoothness/jquery-ui.css" rel="stylesheet">_x000D_
<script src="//code.jquery.com/jquery-1.11.1.js"></script>_x000D_
<script src="//code.jquery.com/ui/1.11.1/jquery-ui.js"></script>_x000D_
_x000D_
<table>_x000D_
    <tbody>_x000D_
        <tr>_x000D_
            <td>1</td>_x000D_
            <td>2</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>3</td>_x000D_
            <td>4</td>_x000D_
        </tr>_x000D_
        <tr> _x000D_
            <td>5</td>_x000D_
            <td>6</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>7</td>_x000D_
            <td>8</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>9</td> _x000D_
            <td>10</td>_x000D_
        </tr>  _x000D_
    </tbody>    _x000D_
</table>

Or Simply Do this Stuff:

public static bool isTwenty(int num)
{
   for(int j = 1; j <= 20; j++)
   {
      if(num % j != 0)
      {
          return false;
      }
      else if(num % j == 0 && num == 20)
      {
          return true;
      }
      else
          return false; 
      }

}

Here is another way by using UIBezierPath (maybe it's too late ^^) Create a circle and mask UIView with it, as follows:

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
view.backgroundColor = [UIColor blueColor];

CAShapeLayer *shape = [CAShapeLayer layer];
UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:view.center radius:(view.bounds.size.width / 2) startAngle:0 endAngle:(2 * M_PI) clockwise:YES];
shape.path = path.CGPath;
view.layer.mask = shape;

you don't need to specify a "SimpleDateFormat", it's simple: You must do specify the constant "DatatypeConstants.FIELD_UNDEFINED" where you don't want to show

GregorianCalendar cal = new GregorianCalendar();
cal.setTime(new Date());
XMLGregorianCalendar xmlDate = DatatypeFactory.newInstance().newXMLGregorianCalendarDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1, cal.get(Calendar.DAY_OF_MONTH), DatatypeConstants.FIELD_UNDEFINED);

As this answer says, you can also just wrap your code in an anonymous function like this:

expect(function(){
    model.get('z');
}).to.throw('Property does not exist in model schema.');

You can easily Use this command:

// Question : name of Model
// take 10 rows from DB In shuffle records...

$questions = Question::orderByRaw('RAND()')->take(10)->get();

Python doesn't really have either concept.

It uses duck typing, which removed the need for interfaces (at least for the computer :-))

Python <= 2.5: Base classes obviously exist, but there is no explicit way to mark a method as 'pure virtual', so the class isn't really abstract.

Python >= 2.6: Abstract base classes do exist (http://docs.python.org/library/abc.html). And allow you to specify methods that must be implemented in subclasses. I don't much like the syntax, but the feature is there. Most of the time it's probably better to use duck typing from the 'using' client side.

Couldn't your query just be written as:

SELECT u1.name as UserName from Message m1, User u1 
  WHERE u1.uid = m1.UserFromID GROUP BY u1.name HAVING count(m1.UserFromId)>3

That should also help with the known speed issues with subqueries in MySQL

editText.setShowSoftInputOnFocus(false);

To use display:none is a good option just to removing an element BUT it will be also removed for screenreaders. There are also discussions if it effects SEO. There's a good, short article on that topic on A List Apart

If you really just want hide and not remove an element, better use:

div {
  position: absolute; 
  left: -999em;
}

Like this it can be also read by screen readers.

The only disadvantage of this method is, that this DIV is actually rendered and it might effect the performance, especially on mobile phones.

Yes, it is possible both in Sublime Text 2 and 3 (which you should really upgrade to if you haven't already). Select View ? Ruler ? 80 (there are several other options there as well). If you like to actually wrap your text at 80 columns, select View ? Word Wrap Column ? 80. Make sure that View ? Word Wrap is selected.

To make your selections permanent (the default for all opened files or views), open Preferences ? Settings—User and use any of the following rules:

{
    // set vertical rulers in specified columns.
    // Use "rulers": [80] for just one ruler
    // default value is []
    "rulers": [80, 100, 120],

    // turn on word wrap for source and text
    // default value is "auto", which means off for source and on for text
    "word_wrap": true,

    // set word wrapping at this column
    // default value is 0, meaning wrapping occurs at window width
    "wrap_width": 80
}

These settings can also be used in a .sublime-project file to set defaults on a per-project basis, or in a syntax-specific .sublime-settings file if you only want them to apply to files written in a certain language (Python.sublime-settings vs. JavaScript.sublime-settings, for example). Access these settings files by opening a file with the desired syntax, then selecting Preferences ? Settings—More ? Syntax Specific—User.

As always, if you have multiple entries in your settings file, separate them with commas , except for after the last one. The entire content should be enclosed in curly braces { }. Basically, make sure it's valid JSON.

If you'd like a key combo to automatically set the ruler at 80 for a particular view/file, or you are interested in learning how to set the value without using the mouse, please see my answer here.

Finally, as mentioned in another answer, you really should be using a monospace font in order for your code to line up correctly. Other types of fonts have variable-width letters, which means one 80-character line may not appear to be the same length as another 80-character line with different content, and your indentations will look all messed up. Sublime has monospace fonts set by default, but you can of course choose any one you want. Personally, I really like Liberation Mono. It has glyphs to support many different languages and Unicode characters, looks good at a variety of different sizes, and (most importantly for a programming font) clearly differentiates between 0 and O (digit zero and capital letter oh) and 1 and l (digit one and lowercase letter ell), which not all monospace fonts do, unfortunately. Version 2.0 and later of the font are licensed under the open-source SIL Open Font License 1.1 (here is the FAQ).

when you want to write a 1D Array in a Excel sheet you have to transpose it and you don't have to create a 2D array with 1 column ([n, 1]) as I read above! Here is a example of code :

 wSheet.Cells(RowIndex, colIndex).Resize(RowsCount, ).Value = _excel.Application.transpose(My1DArray)

Have a good day, Gilles

Tips from 2020:

From Flask 1.0, it defaults to enable multiple threads (source), you don't need to do anything, just upgrade it with:

$ pip install -U flask

If you are using flask run instead of app.run() with older versions, you can control the threaded behavior with a command option (--with-threads/--without-threads):

$ flask run --with-threads

It's same as app.run(threaded=True)

If you need only make and friends. Try installing the command-line-tools provided by Apple. (Assuming you are not doing any iOS development.)

sudo gem install -n /usr/local/bin cocoapods

Try this. It will definately work.

just use the -d option of the date command, e.g.

date -d '20121212' +'%Y %m'

•   is the character entity reference (meant to be easily parseable by humans).
•   is the numeric entity reference (meant to be easily parseable by machines).

They are the same except for the fact that the latter does not need another lookup table to find its actual value. The lookup table is called a DTD, by the way.

You can read more about character entity references in the offical W3C documents.

$servername = "";
$username = "";
$password = "";
$database = "";
$port = "1433";
try {
    $conn = new PDO("sqlsrv:server=$servername,$port;Database=$database;ConnectionPooling=0", $username, $password,
        array(
            PDO::ATTR_PERSISTENT => true,
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
        )
    );
} catch (PDOException $e) {
    echo ("Error connecting to SQL Server: " . $e->getMessage());
}

Groups that capture you can use later on in the regex to match OR you can use them in the replacement part of the regex. Making a non-capturing group simply exempts that group from being used for either of these reasons.

Non-capturing groups are great if you are trying to capture many different things and there are some groups you don't want to capture.

Thats pretty much the reason they exist. While you are learning about groups, learn about Atomic Groups, they do a lot! There is also lookaround groups but they are a little more complex and not used so much.

Example of using later on in the regex (backreference):

<([A-Z][A-Z0-9]*)\b[^>]*>.*?</\1> [ Finds an xml tag (without ns support) ]

([A-Z][A-Z0-9]*) is a capturing group (in this case it is the tagname)

Later on in the regex is \1 which means it will only match the same text that was in the first group (the ([A-Z][A-Z0-9]*) group) (in this case it is matching the end tag).

Sample from apache conf:

#Default value is 2 minutes
**Timeout 600**
ProxyRequests off
ProxyPass /app balancer://MyApp stickysession=JSESSIONID lbmethod=bytraffic nofailover=On
ProxyPassReverse /app balancer://MyApp
ProxyTimeout 600
<Proxy balancer://MyApp>
    BalancerMember http://node1:8080/ route=node1 retry=1 max=25 timeout=600
    .........
</Proxy>

In Windows 7 I did this:

1. Have you installed SVN and Tortoise SVN? If not, Google them and do so now.
2. Go to your SVN folder where you may have other repos (short for repository) (or if you're creating one from scratch, choose a location C drive, D drive, etc or network path).
3. Create a new folder to store your new repository. Call it the same name as your project title
4. Right click the folder and choose Tortoise SVN -> Create Repository here
5. Say yes to Create Folder Structure
6. Click OK. You should see a new icon looking like a "wave" next to your new folder/repo
7. Right Click the new repo and choose SVN Repo Browser
8. Right click 'trunk'
9. Choose ADD Folder... and point to your folder structure of your project in development.
10. Click OK and SVN will ADD your folder structure in. Be patient! It looks like SVN has crashed/frozen. Don't worry. It's doing its work.

Done!

Monkey patching can only be done in dynamic languages, of which python is a good example. Changing a method at runtime instead of updating the object definition is one example;similarly, adding attributes (whether methods or variables) at runtime is considered monkey patching. These are often done when working with modules you don't have the source for, such that the object definitions can't be easily changed.

This is considered bad because it means that an object's definition does not completely or accurately describe how it actually behaves.

For Python 2 my choice is: print >> sys.stderr, 'spam' Because you can simply print lists/dicts etc. without convert it to string. print >> sys.stderr, {'spam': 'spam'} instead of: sys.stderr.write(str({'spam': 'spam'}))

On the one hand, when you call System.getProperty("java.io.tmpdir") instruction, Java calls the Win32 API's function GetTempPath. According to the MSDN :

The GetTempPath function checks for the existence of environment variables in the following order and uses the first path found:

1. The path specified by the TMP environment variable.
2. The path specified by the TEMP environment variable.
3. The path specified by the USERPROFILE environment variable.
4. The Windows directory.

On the other hand, please check the historical reasons on why TMP and TEMP coexist. It's really worth reading.

Yes, continue will be ignored by the switch statement and will go to the condition of the loop to be tested. I'd like to share this extract from The C Programming Language reference by Ritchie:

The continue statement is related to break, but less often used; it causes the next iteration of the enclosing for, while, or do loop to begin. In the while and do, this means that the test part is executed immediately; in the for, control passes to the increment step.

The continue statement applies only to loops, not to a switch statement. A continue inside a switch inside a loop causes the next loop iteration.

I'm not sure about that for C++.

The problem

window.JSON.parse raises an error in $.parseJSON function.

<pre>
$.parseJSON: function( data ) {
...
// Attempt to parse using the native JSON parser first
if ( window.JSON && window.JSON.parse ) {
return window.JSON.parse( data );
}
...
</pre>

My solution

Overloading JQuery using requirejs tool.

<pre>
define(['jquery', 'jquery.overload'], function() { 
    //Loading jquery.overload
});
</pre>

jquery.overload.js file content

<pre>
define(['jquery'],function ($) { 

    $.parseJSON: function( data ) {
        // Attempt to parse using the native JSON parser first
        /**  THIS RAISES Parsing ERROR
        if ( window.JSON && window.JSON.parse ) {
            return window.JSON.parse( data );
        }
        **/

        if ( data === null ) {
            return data;
        }

        if ( typeof data === "string" ) {

            // Make sure leading/trailing whitespace is removed (IE can't handle it)
            data = $.trim( data );

            if ( data ) {
                // Make sure the incoming data is actual JSON
                // Logic borrowed from http://json.org/json2.js
                if ( rvalidchars.test( data.replace( rvalidescape, "@" )
                    .replace( rvalidtokens, "]" )
                    .replace( rvalidbraces, "")) ) {

                    return ( new Function( "return " + data ) )();
                }
            }
        }

        $.error( "Invalid JSON: " + data );
    }

    return $;

});
</pre>

It wasn't obvious in Vishal's answer what the file name was supposed to be in cases where there is no file on disk. I've modified his answer to work without modification for most needs.

from StringIO import StringIO
from zipfile import ZipFile
from urllib import urlopen

def unzip_string(zipped_string):
    unzipped_string = ''
    zipfile = ZipFile(StringIO(zipped_string))
    for name in zipfile.namelist():
        unzipped_string += zipfile.open(name).read()
    return unzipped_string

Besides using ProcessBuilder as suggested Senthil, be sure to read and implement all the recommendations of When Runtime.exec() won't.

The ArrayList class is a wrapper class for an array. It contains an inner array.

public ArrayList<T> {
    private Object[] array;
    private int size;
}

A LinkedList is a wrapper class for a linked list, with an inner node for managing the data.

public LinkedList<T> {
    class Node<T> {
        T data;
        Node next;
        Node prev;
    }
    private Node<T> first;
    private Node<T> last;
    private int size;
}

Note, the present code is used to show how the class may be, not the actual implementation. Knowing how the implementation may be, we can do the further analysis:

ArrayList is faster than LinkedList if I randomly access its elements. I think random access means "give me the nth element". Why ArrayList is faster?

Access time for ArrayList: O(1). Access time for LinkedList: O(n).

In an array, you can access to any element by using array[index], while in a linked list you must navigate through all the list starting from first until you get the element you need.

LinkedList is faster than ArrayList for deletion. I understand this one. ArrayList's slower since the internal backing-up array needs to be reallocated.

Deletion time for ArrayList: Access time + O(n). Deletion time for LinkedList: Access time + O(1).

The ArrayList must move all the elements from array[index] to array[index-1] starting by the item to delete index. The LinkedList should navigate until that item and then erase that node by decoupling it from the list.

LinkedList is faster than ArrayList for deletion. I understand this one. ArrayList's slower since the internal backing-up array needs to be reallocated.

Insertion time for ArrayList: O(n). Insertion time for LinkedList: O(1).

Why the ArrayList can take O(n)? Because when you insert a new element and the array is full, you need to create a new array with more size (you can calculate the new size with a formula like 2 * size or 3 * size / 2). The LinkedList just add a new node next to the last.

This analysis is not just in Java but in another programming languages like C, C++ and C#.

More info here:

• http://en.wikipedia.org/wiki/Array_data_structure
• http://en.wikipedia.org/wiki/Linked_list

You can simply use the following command:-

tail -NUMBER_OF_LINES FILE_NAME

e.g tail -100 test.log

• will fetch the last 100 lines from test.log

In case, if you want the output of the above in a separate file then you can pipes as follows:-

tail -NUMBER_OF_LINES FILE_NAME > OUTPUT_FILE_NAME

e.g tail -100 test.log > output.log

• will fetch the last 100 lines from test.log and store them into a new file output.log)

#/bin/bash

#pgm to monitor
tail -f /var/log/messages >> /tmp/log&
# background cmd pid
pid=$!
# loop to monitor running background cmd
while :
do
    ps ax | grep $pid | grep -v grep
    ret=$?
    if test "$ret" != "0"
    then
        echo "Monitored pid ended"
        break
    fi
    sleep 5

done

wait $pid
echo $?

Maybe you have assigned the text in onResume() function

$("input").keypress(function(event) {
    if (event.which == 13) {
        event.preventDefault();
        $("form").submit();
    }
});

You are returning char, and not char*, which is the pointer to the first character of an array.

If you want to return a new character array instead of doing in-place modification, you can ask for an already allocated pointer (char*) as parameter or an uninitialized pointer. In this last case you must allocate the proper number of characters for new string and remember that in C parameters as passed by value ALWAYS, so you must use char** as parameter in the case of array allocated internally by function. Of course, the caller must free that pointer later.

The latest answers to these type of questions (using nowadays methods) is here: Converting between strings and ArrayBuffers

Invoking javap to read the bytecode

The javap command takes class-names without the .class extension. Try

javap -c ClassName

Converting .class files back to .java files

javap will however not give you the implementations of the methods in java-syntax. It will at most give it to you in JVM bytecode format.

To actually decompile (i.e., do the reverse of javac) you will have to use proper decompiler. See for instance the following related question:

• How do I "decompile" Java class files?

This works well for console in debug mode

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Threshold=DEBUG
log4j.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.conversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p - %m%n

Perhaps use tikz.

Really lame, but I couldn't get any of the sed commands to work right on OSX, so I did this dumb thing instead:

:%s/foo/bar/g
:wn

^- copy these three lines into my clipboard (yes, include the ending newline), then:

vi *

and hold down command-v until it says there's no files left.

Dumb...hacky...effective...

UTF-8 is a superset of ASCII. Either your UTF-8 file is ASCII, or it can't be converted without loss.

This seemed far harder to find than it needs to be for OSX. Too many conflicting posts

For MAC OSX Mavericks Java JDK 7, follow these steps to locate keytool:

Firstly make sure to install Java JDK:

http://docs.oracle.com/javase/7/docs/webnotes/install/mac/mac-jdk.html

Then type this into command prompt:

/usr/libexec/java_home -v 1.7

it will spit out something like:

/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home

keytool is located in the same directory as javac. ie:

/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/bin

From bin directory you can use the keytool.

I use this and it works great for me for setting any color I want.

public static final int MY_COLOR = Color.rgb(255, 102, 153);

Set the colors using 0-255 for each red, green and blue then anywhere you want that color used just put MY_COLOR instead of Color.BLUE or Color.RED or any of the other static colors the Color class offers.

Just do a Google search for color chart and it you can find a chart with the correct RGB codes using 0-255.

Because by default jQuery serializes objects passed as the data parameter to $.ajax. It uses $.param to convert the data to a query string.

From the jQuery docs for $.ajax:

[the data argument] is converted to a query string, if not already a string

If you want to send JSON, you'll have to encode it yourself:

data: JSON.stringify(arr);

Note that JSON.stringify is only present in modern browsers. For legacy support, look into json2.js

class Program
{
    static void Main(string[] args)
    {

        int transactionDate = 20201010;
        int? transactionTime = 210000;

        var agreementDate = DateTime.Today;
        var previousDate = agreementDate.AddDays(-1);

        var agreementHour = 22;
        var agreementMinute = 0;
        var agreementSecond = 0;

        var startDate = new DateTime(previousDate.Year, previousDate.Month, previousDate.Day, agreementHour, agreementMinute, agreementSecond);
        var endDate = new DateTime(agreementDate.Year, agreementDate.Month, agreementDate.Day, agreementHour, agreementMinute, agreementSecond);

        DateTime selectedDate = Convert.ToDateTime(transactionDate.ToString().Substring(6, 2) + "/" + transactionDate.ToString().Substring(4, 2) + "/" + transactionDate.ToString().Substring(0, 4) + " " + string.Format("{0:00:00:00}", transactionTime));

        Console.WriteLine("Selected Date : " + selectedDate.ToString());
        Console.WriteLine("Start Date : " + startDate.ToString());
        Console.WriteLine("End Date : " + endDate.ToString());

        if (selectedDate > startDate && selectedDate <= endDate)
            Console.WriteLine("Between two dates..");
        else if (selectedDate <= startDate)
            Console.WriteLine("Less than or equal to the start date!");
        else if (selectedDate > endDate)
            Console.WriteLine("Greater than end date!");
        else
            Console.WriteLine("Out of date ranges!");
    }
}

Check Safari developer reference on Touch class.

According to this, pageX/Y should be available - maybe you should check spelling? make sure it's pageX and not PageX

This might be a memmory issue on mysql try to increase max_allowed_packet in my.ini

Here's a sample class:

public class Increment
{
    public static void main(String [] args)
    {
        for (int i = 0; i < args.length; ++i)
        {
            System.out.println(args[i]);
        }
    }
}

If I disassemble this class using javap.exe I get this:

Compiled from "Increment.java"
public class Increment extends java.lang.Object{
public Increment();
  Code:
   0:   aload_0
   1:   invokespecial   #1; //Method java/lang/Object."<init>":()V
   4:   return

public static void main(java.lang.String[]);
  Code:
   0:   iconst_0
   1:   istore_1
   2:   iload_1
   3:   aload_0
   4:   arraylength
   5:   if_icmpge       23
   8:   getstatic       #2; //Field java/lang/System.out:Ljava/io/PrintStream;
   11:  aload_0
   12:  iload_1
   13:  aaload
   14:  invokevirtual   #3; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
   17:  iinc    1, 1
   20:  goto    2
   23:  return

}

If I change the loop so it uses i++ and disassemble again I get this:

Compiled from "Increment.java"
public class Increment extends java.lang.Object{
public Increment();
  Code:
   0:   aload_0
   1:   invokespecial   #1; //Method java/lang/Object."<init>":()V
   4:   return

public static void main(java.lang.String[]);
  Code:
   0:   iconst_0
   1:   istore_1
   2:   iload_1
   3:   aload_0
   4:   arraylength
   5:   if_icmpge       23
   8:   getstatic       #2; //Field java/lang/System.out:Ljava/io/PrintStream;
   11:  aload_0
   12:  iload_1
   13:  aaload
   14:  invokevirtual   #3; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
   17:  iinc    1, 1
   20:  goto    2
   23:  return

}

When I compare the two, TextPad tells me that the two are identical.

What this says is that from the point of view of the generated byte code there's no difference in a loop. In other contexts there is a difference between ++i and i++, but not for loops.

SELECT * FROM TABLE_NAME SAMPLE(1)

Will give you olny an approximate 1% share rather than exactly 1/100 of the number of observations. The likely reason is than Oracle generates a random flag for each observation as to whether include in in the sample that it generates. The argument 1 (1%) in such a generation process takes the role of probability of each observation's being selected into the sample.

If this is true, the actual distribution of sample sizes will be binomial.

Constructors append implicit conversion. To suppress this implicit conversion it is required to declare a constructor with a parameter explicit.

In C++11 you can also specify an "operator type()" with such keyword http://en.cppreference.com/w/cpp/language/explicit With such specification you can use operator in terms of explicit conversions, and direct initialization of object.

P.S. When using transformations defined BY USER (via constructors and type conversion operator) it is allowed only one level of implicit conversions used. But you can combine this conversions with other language conversions

• up integral ranks (char to int, float to double);
• standart conversions (int to double);
• convert pointers of objects to base class and to void*;

<script type="text/javascript">
    function lnkLogout_Confirm()
    {
        var bResponse = confirm('Are you sure you want to exit?');

        if (bResponse === true) {
            ////console.log("lnkLogout_Confirm clciked.");
            var url = '@Url.Action("Login", "Login")';
            window.location.href = url;
        }
        return bResponse;
    }

</script>

In my case, I had to set the MultipleActiveResultSets to True in the connection string.
Then it appeared another error (the real one) about not being able to run 2 (SQL) commands at the same time over the same data context! (EF Core, Code first)
So the solution for me was to look for any other asynchronous command execution and turn them to synchronous, as I had just one DbContext for both commands.

I hope it helps you

Try this: B = A ( : ), or try the reshape function.

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/reshape.html

For VirtualBox(5.0.24) Host=Mac(El Capitan) and Guest=RHEL(7.2)

Start up your RHEL Guest VM and open up a Terminal. Make sure you have the Developer Tools installed.

sudo yum groupinstall 'Developer Tools'

And the Kernel headers package so that the Guest Additions script can update your kernel.

sudo yum install kernel-devel*

Once you have the prereqs in place its time to install the Guest Additions. With your running VM selected go to the VirtualBox menu and select Devices --> Insert Guest Additions CD image...

Allow a few seconds for the mount to occur and the install script to kick off. Once they have click the "Run" button in the dialog that popped up in your Guest VM.

After the script finishes right click the CD Icon on the Desktop and choose Eject. Then Shutdown the Guest VM.

Create the Shared folder in you Host system using Terminal, I usually put it in my Documents folder, and make sure that your user can access it.

sudo mkdir ~/Documents/RhelShared
sudo chmod 755 <user> ~/Documents/RhelShared

In the Oracle VM Virtual Box Manager select your VM and then click on the "Shared folders" configuration element. In the next dialog click on the Add Folder icon to the right of the Folders List.

Then in the popup window select the Host Folder you just created as the Folder Path and give it a Folder Name that will be used by the Guest VM, also tick the "Auto Mount" check-box.

After rebooting the Guest VM launch a terminal on the Host and check the user that is associated with the running VirtualBox Guest process is either your user, very likely, or in a group with access to the Shared folder.

ps aux | grep VirtualBoxVM

Then as per several of the previous answers in a Terminal on the Guest VM add your user to the vboxsf group.

sudo usermod -a -G vboxsf <user>

Log out and in again to pickup the change.

The shared folder should now be available and accessible as sf_rhelshared assuming you used the same names as I did in the popup window above.

As of .NET 5, the implementation has changed. HttpClient still throws a TaskCanceledException, but now wraps a TimeoutException as InnerException. So you can easily check whether a request was canceled or timed out (code sample copied from linked blog post):

try
{
    using var response = await _client.GetAsync("http://localhost:5001/sleepFor?seconds=100");
}
// Filter by InnerException.
catch (TaskCanceledException ex) when (ex.InnerException is TimeoutException)
{
    // Handle timeout.
    Console.WriteLine("Timed out: "+ ex.Message);
}
catch (TaskCanceledException ex)
{
    // Handle cancellation.
    Console.WriteLine("Canceled: " + ex.Message);   
}

You could consider using CSS clip: rect(top, right, bottom, left); to clip a fixed positioned element to a parent. See demo at http://jsfiddle.net/lmeurs/jf3t0fmf/.

Beware, use with care!

Though the clip style is widely supported, main disadvantages are that:

1. The parent's position cannot be static or relative (one can use an absolutely positioned parent inside a relatively positioned container);
2. The rect coordinates do not support percentages, though the auto value equals 100%, ie. clip: rect(auto, auto, auto, auto);;
3. Possibillities with child elements are limited in at least IE11 & Chrome34, ie. we cannot set the position of child elements to relative or absolute or use CSS3 transform like scale.

See http://tympanus.net/codrops/2013/01/16/understanding-the-css-clip-property/ for more info.

EDIT: Chrome seems to handle positioning of and CSS3 transforms on child elements a lot better when applying backface-visibility, so just to be sure we added:

-webkit-backface-visibility: hidden;
-moz-backface-visibility: hidden;
backface-visibility: hidden;

to the main child element.

Also note that it's not fully supported by older / mobile browsers or it might take some extra effort. See our implementation for the menu at bellafuchsia.com.

1. IE8 shows the menu well, but menu links are not clickable;
2. IE9 does not show the menu under the fold;
3. iOS Safari <5 does not show the menu well;
4. iOS Safari 5+ repaints the clipped content on scroll after scrolling;
5. FF (at least 13+), IE10+, Chrome and Chrome for Android seem to play nice.

EDIT 2014-11-02: Demo URL has been updated.

I copied the data of a map to another with this code:

HashMap product =(HashMap)shopping_truck.get(i);
HashMap tmp = new HashMap();
for (Iterator it = product.entrySet().iterator(); it.hasNext();) {
    Map.Entry thisEntry = (Map.Entry) it.next();
    tmp.put(thisEntry.getKey(), thisEntry.getValue());
}

I found a way around this after 3-4 hours of googling. I have added the following

<startup selegacyv2runtimeactivationpolicy="true">
  <supportedruntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client" />
</startup>

If this doesn't solve your problem then--> In the Project References Right Click on DLL where you getting error --> Select Properties--> Check the Run-time Version --> If it is v2.0.50727 then we know the problem. The Problem is :- you are having 2.0 Version of respective DLL. Solution is:- You can delete the respective DLL from the Project references and then download the latest version of DLL's from the corresponding website and add the reference of the latest version DLL reference then it will work.

I've found a very simple solution,

just use the onmouseleave="myfunc()" event than the onmousout="myfunc()" event

In my code it worked!!

Example:

<html>
<head>
<script type="text/javascript">
   function myFunc(){
      document.getElementById('hide_div').style.display = 'none';
   }
   function ShowFunc(){
      document.getElementById('hide_div').style.display = 'block';
   }
</script>
</head>
<body>
<div onmouseleave="myFunc()" style='border:double;width:50%;height:50%;position:absolute;top:25%;left:25%;'>
   Hover mouse here
   <div id='child_div' style='border:solid;width:25%;height:25%;position:absolute;top:10%;left:10%;'>
      CHILD <br/> It doesn't fires if you hover mouse over this child_div
   </div>
</div>
<div id="hide_div" >TEXT</div>
<a href='#' onclick="ShowFunc()">Show "TEXT"</a>
</body>
</html>

Same Example with mouseout function:

<html>
<head>
<script type="text/javascript">
   function myFunc(){
      document.getElementById('hide_div').style.display = 'none';
   }
   function ShowFunc(){
      document.getElementById('hide_div').style.display = 'block';
   }
</script>
</head>
<body>
<div onmouseout="myFunc()" style='border:double;width:50%;height:50%;position:absolute;top:25%;left:25%;'>
   Hover mouse here
   <div id='child_div' style='border:solid;width:25%;height:25%;position:absolute;top:10%;left:10%;'>
      CHILD <br/> It fires if you hover mouse over this child_div
   </div>
</div>
<div id="hide_div">TEXT</div>
<a href='#' onclick="ShowFunc()">Show "TEXT"</a>
</body>
</html>

Hope it helps :)

I think what's happening, is that, since the wrapper id is relatively position, it just appears on the same position with the body tag, what you should do, is that you can add a Z-index to the wrapper id.

#wrapper {
margin: auto;
text-align: left;
width: 832px;
position: relative;
padding-top: 27px;
z-index: 99; /* added this line */
 }

This should make layers above the transparent body tag.

This may be a bit off-topic but I want to share it here because I simply wanted to remove Alerts from state after a given timeout i.e. auto hiding alerts/notifications.

I ended up using setTimeout() within the <Alert /> component, so that it can then call and dispatch a REMOVE action on given id.

export function Alert(props: Props) {
  useEffect(() => {
    const timeoutID = setTimeout(() => {
      dispatchAction({
        type: REMOVE,
        payload: {
          id: id,
        },
      });
    }, timeout ?? 2000);
    return () => clearTimeout(timeoutID);
  }, []);
  return <AlertComponent {...props} />;
}

Detecting and embedding Flash within a web document is a surprisingly difficult task.

I was very disappointed with the quality and non-standards compliant markup generated from both SWFObject and Adobe's solutions. Additionally, my testing found Adobe's auto updater to be inconsistent and unreliable.

The JavaScript Flash Detection Library (Flash Detect) and JavaScript Flash HTML Generator Library (Flash TML) are a legible, maintainable and standards compliant markup solution.

-"Luke read the source!"

If you have access to ES2015 functions, and you're looking for a more functional approach I'd go with something like:

const people = [
  { id: 1, name: 'serdar' },
  { id: 5, name: 'alex' },
  { id: 300, name: 'brittany' }
];

const idToRemove = 5;

const filteredPeople = people.filter((item) => item.id !== idToRemove);

// [
//   { id: 1, name: 'serdar' },
//   { id: 300, name: 'brittany' }
// [

Watch out though, filter() is non-mutating, so you'll get a new array back.

See the Mozilla Developer Network notes on Filter.

System.String (with capital S) is already nullable, you do not need to declare it as such.

(string? myStr) is wrong.

Yes you can create events on objects, here is an example;

public class Foo
{
    public delegate void MyEvent(object sender, object param);
    event MyEvent OnMyEvent;

    public Foo()
    {
        this.OnMyEvent += new MyEvent(Foo_OnMyEvent);
    }

    void Foo_OnMyEvent(object sender, object param)
    {
        if (this.OnMyEvent != null)
        {
            //do something
        }
    }



    void RaiseEvent()
    {
        object param = new object();
        this.OnMyEvent(this,param);
    }
}

Simply Use

 FragmentManager fm = getActivity().getSupportFragmentManager();

Remember always when accessing fragment inflating in MainLayout use Casting or getActivity().

You can simply use setKeepScreenOn() from the View class.

Replace

 var myNewString = myOldString.replace ("username," visitorName);

with

 var myNewString = myOldString.replace("username", visitorName);

The RFC for the HTTP Header Field X-Frame-Options states that the "ALLOW-FROM" field in the X-Frame-Options header value can only contain one domain. Multiple domains are not allowed.

The RFC suggests a work around for this problem. The solution is to specify the domain name as a url parameter in the iframe src url. The server that hosts the iframe src url can then check the domain name given in the url parameters. If the domain name matches a list of valid domain names, then the server can send the X-Frame-Options header with the value: "ALLOW-FROM domain-name", where domain name is the name of the domain that is trying to embed the remote content. If the domain name is not given or is not valid, then the X-Frame-Options header can be sent with the value: "deny".

it would be something like this

sqlplus -s /nolog  <<-!
connect ${ORACLE_UID}/${ORACLE_PWD}@${ORACLE_DB};
whenever sqlerror exit sql.sqlcode;
set pagesize 0;
set linesize 150;
spool <query_output.dat> APPEND
@$<input_query.dat>
spool off;
exit;
!

here

ORACLE_UID=<user name>
ORACLE_PWD=<password>
ORACLE_DB=//<host>:<port>/<DB name>

string hostUrl = Request.Url.Scheme + "://" + Request.Url.Host; //should be "http://hostnamehere.com"

Servlet is server side technology which is used to create dynamic web page in web application. Actually servlet is an api which consist of group of classes and interfaces, which has some functionality. When we use Servlet API we can use predefined functionality of servlet classes and interfaces.

Lifecycle of Servlet:

Web container maintains the lifecycle of servlet instance.

1 . Servlet class loaded

2 . Servlet instance created

3 . init() method is invoked

4 . service() method invoked

5 . destroy() method invoked

When request raise by client(browser) then web-container checks whether the servlet is running or not if yes then it invoke the service() method and give the response to browser..

When servlet is not running then web-container follow the following steps..

1. classloader load the servlet class

2. Instantiates the servlet

3. Initializes the servlet

4.invoke the service() method

after serving the request web-container wait for specific time, in this time if request comes then it call only service() method otherwise it call destroy() method..

One line of code in kotlin:

getSharedPreferences("MY_PREFS_NAME", MODE_PRIVATE).edit().clear().apply()

Simple answer is NO !!.

There is no FOR in SQL, But you can use WHILE or GOTO to achieve the way how the FOR will work.

WHILE :

DECLARE @a INT = 10

WHILE @a <= 20
BEGIN
    PRINT @a
    SET @a = @a + 1
END

GOTO :

DECLARE @a INT = 10
a:
PRINT @a
SET @a = @a + 1
IF @a < = 20
BEGIN
    GOTO a
END

I always prefer WHILE over GOTO statement.

Just sort the list when you want to use it.

l = sorted(d.keys())

Due to windows encoding issue for me

I experienced this "Could not open input file" error. Then I obtained the file using wget from another linux system, and the error did not occur.

The error ws only occurring for me when the file transited through windows.

THE EASIEST SOLUTION --> i've found is to let Material Design (1.0.0-rc4) do the work. The md-input-container will do the work for you. It concats the string and adds elipses plus it has the extra advantage of allowing you to click it to get the full text so it's the whole enchilada. You may need to set the width of the md-input-container.

HTML:

<md-input-container>
   <md-select id="concat-title" placeholder="{{mytext}}" ng-model="mytext" aria-label="label">
      <md-option ng-selected="mytext" >{{mytext}}
      </md-option>
   </md-select>
</md-input-container>

CS:

#concat-title .md-select-value .md-select-icon{
   display: none; //if you want to show chevron remove this
}
#concat-title .md-select-value{
   border-bottom: none; //if you want to show underline remove this
}

If all your columns are numeric, you can use boolean indexing:

In [1]: import pandas as pd

In [2]: df = pd.DataFrame({'a': [0, -1, 2], 'b': [-3, 2, 1]})

In [3]: df
Out[3]: 
   a  b
0  0 -3
1 -1  2
2  2  1

In [4]: df[df < 0] = 0

In [5]: df
Out[5]: 
   a  b
0  0  0
1  0  2
2  2  1

For the more general case, this answer shows the private method _get_numeric_data:

In [1]: import pandas as pd

In [2]: df = pd.DataFrame({'a': [0, -1, 2], 'b': [-3, 2, 1],
                           'c': ['foo', 'goo', 'bar']})

In [3]: df
Out[3]: 
   a  b    c
0  0 -3  foo
1 -1  2  goo
2  2  1  bar

In [4]: num = df._get_numeric_data()

In [5]: num[num < 0] = 0

In [6]: df
Out[6]: 
   a  b    c
0  0  0  foo
1  0  2  goo
2  2  1  bar

With timedelta type, boolean indexing seems to work on separate columns, but not on the whole dataframe. So you can do:

In [1]: import pandas as pd

In [2]: df = pd.DataFrame({'a': pd.to_timedelta([0, -1, 2], 'd'),
   ...:                    'b': pd.to_timedelta([-3, 2, 1], 'd')})

In [3]: df
Out[3]: 
        a       b
0  0 days -3 days
1 -1 days  2 days
2  2 days  1 days

In [4]: for k, v in df.iteritems():
   ...:     v[v < 0] = 0
   ...:     

In [5]: df
Out[5]: 
       a      b
0 0 days 0 days
1 0 days 2 days
2 2 days 1 days

Update: comparison with a pd.Timedelta works on the whole DataFrame:

In [1]: import pandas as pd

In [2]: df = pd.DataFrame({'a': pd.to_timedelta([0, -1, 2], 'd'),
   ...:                    'b': pd.to_timedelta([-3, 2, 1], 'd')})

In [3]: df[df < pd.Timedelta(0)] = 0

In [4]: df
Out[4]: 
       a      b
0 0 days 0 days
1 0 days 2 days
2 2 days 1 days

Recommended, without jQuery:

Give your <input> an ID and refer to that. Also, remove the checked="" part of the <input> tag if you want the checkbox to start out unticked. Then it's:

document.getElementById("my-checkbox").checked = true;

Pure JavaScript, with no Element ID (#1):

var inputs = document.getElementsByTagName('input');

for(var i = 0; i<inputs.length; i++){

  if(typeof inputs[i].getAttribute === 'function' && inputs[i].getAttribute('name') === 'copyNewAddrToBilling'){

    inputs[i].checked = true;

    break;

  }
}

Pure Javascript, with no Element ID (#2):

document.querySelectorAll('.text input[name="copyNewAddrToBilling"]')[0].checked = true;

document.querySelector('.text input[name="copyNewAddrToBilling"]').checked = true;

Note that the querySelectorAll and querySelector methods are supported in these browsers: IE8+, Chrome 4+, Safari 3.1+, Firefox 3.5+ and all mobile browsers.

If the element may be missing, you should test for its existence, e.g.:

var input = document.querySelector('.text input[name="copyNewAddrToBilling"]');
if (!input) { return; }

With jQuery:

$('.text input[name="copyNewAddrToBilling"]').prop('checked', true);

if you have CRUD (index) and you need set default sorting your controller for GridView, or ListView, or more... Example

public function actionIndex()
{
    $searchModel = new NewsSearch();
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
    // set default sorting
    $dataProvider->sort->defaultOrder = ['id' => SORT_DESC];

    return $this->render('index', [
        'searchModel' => $searchModel,
        'dataProvider' => $dataProvider,
    ]);
}

you need add

$dataProvider->sort->defaultOrder = ['id' => SORT_DESC];

1. first go to the properties of your project
2. click on add references

3. add the library under COM object for window media player then type your code where you want

   
   Source:

       WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();
   
       wplayer.URL = @"C:\Users\Adil M\Documents\Visual Studio 2012\adil.mp3";
       wplayer.controls.play();
   

You can as well do:

git checkout --theirs /path/to/file

to keep the remote file, and:

git checkout --ours /path/to/file

to keep local file.

Then git add them and everything is done.

Edition: Keep in mind that this is for a merge scenario. During a rebase --theirs refers to the branch where you've been working.

If i understand you correctly then in c# the yield return compiler magic is all you need i think.

e.g.

IEnumerable<string> myMethod(IEnumerable<string> sequence)
{
    foreach(string item in sequence)
    {
         yield return item + "roxxors";
    }
}

In addition of the modification of the file C:\wamp64\bin\apache\apache2.4.27\conf\httpd.conf.
To get the url shortcuts working, edit the file C:\wamp64\wampmanager.conf and change the port:

[apache]
apachePortUsed = "8080"

Then exit and relaunch wamp.

Using Future described in above answers does the job, but a bit less significantly as f.get(), blocks the thread until it gets the result, which violates concurrency.

Best solution is to use Guava's ListenableFuture. An example :

    ListenableFuture<Void> future = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(1, new NamedThreadFactory).submit(new Callable<Void>()
    {
        @Override
        public Void call() throws Exception
        {
            someBackgroundTask();
        }
    });
    Futures.addCallback(future, new FutureCallback<Long>()
    {
        @Override
        public void onSuccess(Long result)
        {
            doSomething();
        }

        @Override
        public void onFailure(Throwable t)
        {

        }
    };

If you are mocking the behavior (with something like doNothing()) there should really be no need to call to verify*(). That said, here's my stab at re-writing your test method:

@PrepareForTest({InternalUtils.class})
@RunWith(PowerMockRunner.class)
public class InternalServiceTest { //Note the renaming of the test class.
   public void testProcessOrder() {
        //Variables
        InternalService is = new InternalService();
        Order order = mock(Order.class);

        //Mock Behavior
        when(order.isSuccessful()).thenReturn(true);
        mockStatic(Internalutils.class);
        doNothing().when(InternalUtils.class); //This is the preferred way
                                               //to mock static void methods.
        InternalUtils.sendEmail(anyString(), anyString(), anyString(), anyString());

        //Execute
        is.processOrder(order);            

        //Verify
        verifyStatic(InternalUtils.class); //Similar to how you mock static methods
                                           //this is how you verify them.
        InternalUtils.sendEmail(anyString(), anyString(), anyString(), anyString());
   }
}

I grouped into four sections to better highlight what is going on:

1. Variables

I choose to declare any instance variables / method arguments / mock collaborators here. If it is something used in multiple tests, consider making it an instance variable of the test class.

2. Mock Behavior

This is where you define the behavior of all of your mocks. You're setting up return values and expectations here, prior to executing the code under test. Generally speaking, if you set the mock behavior here you wouldn't need to verify the behavior later.

3. Execute

Nothing fancy here; this just kicks off the code being tested. I like to give it its own section to call attention to it.

4. Verify

This is when you call any method starting with verify or assert. After the test is over, you check that the things you wanted to have happen actually did happen. That is the biggest mistake I see with your test method; you attempted to verify the method call before it was ever given a chance to run. Second to that is you never specified which static method you wanted to verify.

Additional Notes

This is mostly personal preference on my part. There is a certain order you need to do things in but within each grouping there is a little wiggle room. This helps me quickly separate out what is happening where.

I also highly recommend going through the examples at the following sites as they are very robust and can help with the majority of the cases you'll need:

• https://github.com/powermock/powermock/wiki/Mockito (PowerMock Overview / Examples)
• http://site.mockito.org/mockito/docs/current/org/mockito/Mockito.html (Mockito Overview / Examples)

Not possible without assigning height value to div.

Add this

body, html{height:100%}
div{height:100%}
table{background:green; width:450px}    ?

DEMO

I found a dirty trick but it works, you could use the hover function to get the value before change!

Here is a solution :

$('input').on("keypress", function(e) {
            /* ENTER PRESSED*/
            if (e.keyCode == 13) {
                /* FOCUS ELEMENT */
                var inputs = $(this).parents("form").eq(0).find(":input");
                var idx = inputs.index(this);

                if (idx == inputs.length - 1) {
                    inputs[0].select()
                } else {
                    inputs[idx + 1].focus(); //  handles submit buttons
                    inputs[idx + 1].select();
                }
                return false;
            }
        });

For those who still can't make this work, make sure that the overflowed element is displayed before using the jQuery function.

Example:

$('#elem').show();
$('#elem').scrollTop(0);

Simple:

var element = $("span[name='test']");
$(element[0].attributes).each(function() {
console.log(this.nodeName+':'+this.nodeValue);});

Hadley's tidyr just got this amazing function drop_na

library(tidyr)
DF %>% drop_na(y)
  x  y  z
1 1  0 NA
2 2 10 33

Looks like you are using maven (src/main/java). In this case put the applicationContext.xml file in the src/main/resources directory. It will be copied in the classpath directory and you should be able to access it with

@ContextConfiguration("/applicationContext.xml")

From the Spring-Documentation: A plain path, for example "context.xml", will be treated as a classpath resource from the same package in which the test class is defined. A path starting with a slash is treated as a fully qualified classpath location, for example "/org/example/config.xml".

So it's important that you add the slash when referencing the file in the root directory of the classpath.

If you work with the absolute file path you have to use 'file:C:...' (if I understand the documentation correctly).

I always use my own mod function, defined as

int mod(int x, int m) {
    return (x%m + m)%m;
}

Of course, if you're bothered about having two calls to the modulus operation, you could write it as

int mod(int x, int m) {
    int r = x%m;
    return r<0 ? r+m : r;
}

or variants thereof.

The reason it works is that "x%m" is always in the range [-m+1, m-1]. So if at all it is negative, adding m to it will put it in the positive range without changing its value modulo m.

Set a proper golang middleware, so you can reuse on any endpoint.

Helper Type and Function

type Adapter func(http.Handler) http.Handler
// Adapt h with all specified adapters.
func Adapt(h http.Handler, adapters ...Adapter) http.Handler {
    for _, adapter := range adapters {
        h = adapter(h)
    }
    return h
}

Actual middleware

func EnableCORS() Adapter {
    return func(h http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

            if origin := r.Header.Get("Origin"); origin != "" {
                w.Header().Set("Access-Control-Allow-Origin", origin)
                w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
                w.Header().Set("Access-Control-Allow-Headers",
                    "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
            }
            // Stop here if its Preflighted OPTIONS request
            if r.Method == "OPTIONS" {
                return
            }
            h.ServeHTTP(w, r)
        })
    }
}

Endpoint

REMEBER! Middlewares get applyed on reverse order( ExpectGET() gets fires first)

mux.Handle("/watcher/{action}/{device}",Adapt(api.SerialHandler(mux),
    api.EnableCORS(),
    api.ExpectGET(),
))

EXCEPTION
      WHEN DUP_VAL_ON_INDEX
      THEN
         UPDATE

It may not be an easy problem. Determining how to map classes defined in Python into types in Java will be a big challange because of differences in each of type binding time. (duck typing vs. compile time binding).

I use the below code . Check if it helps .

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item>
        <shape android:shape="rectangle" >
            <solid android:color="#00f" />
            <padding android:bottom="2dp" />
        </shape>
    </item>
    <item android:bottom="10dp">
        <shape android:shape="rectangle" >
            <solid android:color="#fff" />

            <padding
                android:left="2dp"
                android:right="2dp" />
        </shape>
    </item>
    <item>
        <shape android:shape="rectangle" >
            <solid android:color="#fff" />
        </shape>
    </item>
</layer-list>

To read user input you can try the cmd module for easily creating a mini-command line interpreter (with help texts and autocompletion) and raw_input (input for Python 3+) for reading a line of text from the user.

text = raw_input("prompt")  # Python 2
text = input("prompt")  # Python 3

Command line inputs are in sys.argv. Try this in your script:

import sys
print (sys.argv)

There are two modules for parsing command line options: optparse (deprecated since Python 2.7, use argparse instead) and getopt. If you just want to input files to your script, behold the power of fileinput.

The Python library reference is your friend.

A much simpler solution, without all the inside form-group elements

<div class="form-group">
       <label for="birthday" class="col-xs-2 control-label">Birthday</label>
       <div class="col-xs-10">
           <div class="form-inline">
               <input type="text" class="form-control" placeholder="year" style="width:70px;"/>
               <input type="text" class="form-control" placeholder="month" style="width:80px;"/>
               <input type="text" class="form-control" placeholder="day" style="width:100px;"/>                        
           </div>
     </div>
</div>

... and it will look like this,

Cheers!

So, the trick here is to use absolute positioning calc like this:

top: calc(50% - XYpx);
left: calc(50% - XYpx);

where XYpx is half the size of your image, in my case, the image was a square. Of course, in this now obsolete case, the image must also change its size proportionally in response to window resize to be able to remain at the center without looking out of proportion.

Just pass your Oracle path variables before you run any scripts:
Like for perl you can do add below in beginning of your script:

BEGIN {
   my $ORACLE_HOME     = "/usr/lib/oracle/11.2/client64";
   my $LD_LIBRARY_PATH = "$ORACLE_HOME/lib";
   if ($ENV{ORACLE_HOME} ne $ORACLE_HOME
   || $ENV{LD_LIBRARY_PATH} ne $LD_LIBRARY_PATH
   ) {
      $ENV{ORACLE_HOME}     = "/usr/lib/oracle/11.2/client64";
      $ENV{LD_LIBRARY_PATH} = "$ORACLE_HOME/lib";
      exec { $^X } $^X, $0, @ARGV;
   }
}

So you have to add an import statement on your parent component:

class ParentClass extends Component {
  render() {
    const img = require('../images/img.png');
    return (
      <div>
        <ChildClass
          img={img}
        />
      </div>
    );
  }
}

and in the child class:

class ChildClass extends Component {
  render() {
    return (
      <div>
          <img
            src={this.props.img}
          />
      </div>
    );
  }
}

Here is another version if you have to reference a specific docker file:

version: "3"
services:
  nginx:
    container_name: nginx
    build:
      context: ../..
      dockerfile: ./docker/nginx/Dockerfile
    image: my_nginx:latest

Then you just run

docker-compose build

You could use a nested query:

Select
  ColumnA,
  ColumnB,
  calccolumn1,
  calccolumn1 / ColumnC as calccolumn2
From (
  Select
    ColumnA,
    ColumnB,
    ColumnC,
    ColumnA + ColumnB As calccolumn1
  from t42
);

With a row with values 3, 4, 5 that gives:

   COLUMNA    COLUMNB CALCCOLUMN1 CALCCOLUMN2
---------- ---------- ----------- -----------
         3          4           7         1.4

You can also just repeat the first calculation, unless it's really doing something expensive (via a function call, say):

Select
  ColumnA,
  ColumnB,
  ColumnA + ColumnB As calccolumn1,
  (ColumnA + ColumnB) / ColumnC As calccolumn2
from t42; 

   COLUMNA    COLUMNB CALCCOLUMN1 CALCCOLUMN2
---------- ---------- ----------- -----------
         3          4           7         1.4 

This is a permanent solution for MySql 5.7+ on Ubuntu 14+:

$ sudo bash -c "echo -e \"\nsql_mode=IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION\"  >> /etc/mysql/mysql.conf.d/mysqld.cnf"
$ sudo service mysql restart
# Check if login attempt throws any errors
$ mysql -u[user] -p # replace [user] with your own user name

If you are able to login without errors - you should be all set now.

Please try the following program. You might be expecting this output.

var fs = require('fs');

var data = {}
data.table = []
for (i=0; i <26 ; i++){
   var obj = {
       id: i,
       square: i * i
   }
   data.table.push(obj)
}
fs.writeFile ("input.json", JSON.stringify(data), function(err) {
    if (err) throw err;
    console.log('complete');
    }
);

Save this program in a javascript file, say, square.js.

Then run the program from command prompt using the command node square.js

What it does is, simply overwriting the existing file with new set of data, every time you execute the command.

Happy Coding.

I see that we have (beside others) basically two options:

a.sort_by { |h| -h[:bar] }

and

a.sort_by { |h| h[:bar] }.reverse

While both ways give you the same result when your sorting key is unique, keep in mind that the reverse way will reverse the order of keys that are equal.

Example:

a = [{foo: 1, bar: 1},{foo: 2,bar: 1}]
a.sort_by {|h| -h[:bar]}
 => [{:foo=>1, :bar=>1}, {:foo=>2, :bar=>1}]
a.sort_by {|h| h[:bar]}.reverse
 => [{:foo=>2, :bar=>1}, {:foo=>1, :bar=>1}]

While you often don't need to care about this, sometimes you do. To avoid such behavior you could introduce a second sorting key (that for sure needs to be unique at least for all items that have the same sorting key):

a.sort_by {|h| [-h[:bar],-h[:foo]]}
 => [{:foo=>2, :bar=>1}, {:foo=>1, :bar=>1}]
a.sort_by {|h| [h[:bar],h[:foo]]}.reverse
 => [{:foo=>2, :bar=>1}, {:foo=>1, :bar=>1}]

private void fillTextView (int id, String text) {
    TextView tv = (TextView) findViewById(id);
    tv.setText(text);
}

If this is where you're getting the null pointer exception, there was no view found for the id that you passed into findViewById(), and the actual exception is thrown when you try to call a function setText() on null. You should post your XML for R.layout.activity_main, as it's hard to tell where things went wrong just by looking at your code.

More reading on null pointers: What is a NullPointerException, and how do I fix it?

Here is example of taking XML file from raw folder:

 InputStream XmlFileInputStream = getResources().openRawResource(R.raw.taskslists5items); // getting XML

Then you can:

 String sxml = readTextFile(XmlFileInputStream);

when:

 public String readTextFile(InputStream inputStream) {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

        byte buf[] = new byte[1024];
        int len;
        try {
            while ((len = inputStream.read(buf)) != -1) {
                outputStream.write(buf, 0, len);
            }
            outputStream.close();
            inputStream.close();
        } catch (IOException e) {

        }
        return outputStream.toString();
    }

Note that as of Microsoft SQL Server 2016, UTF-8 is supported by bcp, BULK_INSERT, and OPENROWSET.

Addendum 2016-12-21: SQL Server 2016 SP1 now enables Unicode Compression (and most other previously Enterprise-only features) for all versions of MS SQL including Standard and Express. This is not the same as UTF-8 support, but it yields a similar benefit if the goal is disk space reduction for Western alphabets.

In my first encounter with this error my user had rights to "write" to the file but not the containing directory. Check the permissions of the directory containing the file.

We may need to delete the REG_DWORD value for iexplore.exe under the registry editor to modify and change the default document mode to Edge or IE11.

Open the registry editor using regedit.exe and follow the below mentioned paths to find the configuration in registry.

For 32 bit windows machine: HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Internet Explorer > Main > FeatureControl > FEATURE_BROWSER_EMULATION

For 64 bit windows machine: HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Internet Explorer > Main > FeatureControl > FEATURE_BROWSER_EMULATION and HKEY_LOCAL_MACHINE > SOFTWARE > WOW6432Node > Microsoft > Internet Explorer > Main > FeatureControl > FEATURE_BROWSER_EMULATION

Delete the REG_DWORD value iexplore.exe. Now close the browser and relaunch the website using Internet Explorer 11, it will default to Edge as Document Mode.

Ref: https://www.ibm.com/support/pages/ie11-document-mode-defaults-ie7-how-reset

I had the same thing. All came down to a "d" instead of a "D" in a tag name in the schema.

You have to validate the connection.

If you use Oracle it is likely that you use Oracle´s Universal Connection Pool. The following assumes that you do so.

The easiest way to validate the connection is to tell Oracle that the connection must be validated while borrowing it. This can be done with

pool.setValidateConnectionOnBorrow(true);

But it works only if you hold the connection for a short period. If you borrow the connection for a longer time, it is likely that the connection gets broken while you hold it. In that case you have to validate the connection explicitly with

if (connection == null || !((ValidConnection) connection).isValid())

See the Oracle documentation for further details.