It depends. How critical is the content you are streaming? If critical use TCP. This may cause issues in bandwidth, video quality (you might have to use a lower quality to deal with latency), and latency. But if you need the content to guaranteed get there, use it.

Otherwise UDP should be fine if the stream is not critical and would be preferred because UDP tends to have less overhead.

System.exit(system call) terminates the currently running Java virtual machine by initiating its shutdown sequence. The argument serves as a status code.

By convention, a nonzero status code indicates abnormal termination.

  System.exit(0) or EXIT_SUCCESS;  ---> Success
  System.exit(1) or EXIT_FAILURE;  ---> Exception
  System.exit(-1) or EXIT_ERROR;   ---> Error

Read More at Java

On Unix and Linux systems, 0 for successful executions and 1 or higher for failed executions.

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

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

or

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

Recently with jquery 1.4 this solution has been added:

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

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

I have done for

1. centerInParent

2. centerHorizontal

3. centerVertical

private void addOrRemoveProperty(View view, int property, boolean flag){
    RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) view.getLayoutParams();
    if(flag){
        layoutParams.addRule(property);
    }else {
        layoutParams.removeRule(property);
    }
    view.setLayoutParams(layoutParams);
}

How to call method:

centerInParent - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, true);

centerInParent - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, false);

centerHorizontal - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, true);

centerHorizontal - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, false);

centerVertical - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, true);

centerVertical - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, false);

Hope this would help you.

I wrote this answer about four years ago and my opinion hasn't changed. But since then there have been significant developments on the micro-services front. I added micro-services specific notes at the end...

I'll weigh in against the idea, with real-world experience to back up my vote.

I was brought on to a large application that had five contexts for a single database. In the end, we ended up removing all of the contexts except for one - reverting back to a single context.

At first the idea of multiple contexts seems like a good idea. We can separate our data access into domains and provide several clean lightweight contexts. Sounds like DDD, right? This would simplify our data access. Another argument is for performance in that we only access the context that we need.

But in practice, as our application grew, many of our tables shared relationships across our various contexts. For example, queries to table A in context 1 also required joining table B in context 2.

This left us with a couple poor choices. We could duplicate the tables in the various contexts. We tried this. This created several mapping problems including an EF constraint that requires each entity to have a unique name. So we ended up with entities named Person1 and Person2 in the different contexts. One could argue this was poor design on our part, but despite our best efforts, this is how our application actually grew in the real world.

We also tried querying both contexts to get the data we needed. For example, our business logic would query half of what it needed from context 1 and the other half from context 2. This had some major issues. Instead of performing one query against a single context, we had to perform multiple queries across different contexts. This has a real performance penalty.

In the end, the good news is that it was easy to strip out the multiple contexts. The context is intended to be a lightweight object. So I don't think performance is a good argument for multiple contexts. In almost all cases, I believe a single context is simpler, less complex, and will likely perform better, and you won't have to implement a bunch of work-arounds to get it to work.

I thought of one situation where multiple contexts could be useful. A separate context could be used to fix a physical issue with the database in which it actually contains more than one domain. Ideally, a context would be one-to-one to a domain, which would be one-to-one to a database. In other words, if a set of tables are in no way related to the other tables in a given database, they should probably be pulled out into a separate database. I realize this isn't always practical. But if a set of tables are so different that you would feel comfortable separating them into a separate database (but you choose not to) then I could see the case for using a separate context, but only because there are actually two separate domains.

Regarding micro-services, one single context still makes sense. However, for micro-services, each service would have its own context which includes only the database tables relevant to that service. In other words, if service x accesses tables 1 and 2, and service y accesses tables 3 and 4, each service would have its own unique context which includes tables specific to that service.

I'm interested in your thoughts.

Socket are characterized by their domain, type and transport protocol. Common domains are:

1. AF_UNIX: address format is UNIX pathname

2. AF_INET: address format is host and port number

(there are actually many other options which can be used here for specialized purposes).usually we use AF_INET for socket programming

Reference: http://www.cs.uic.edu/~troy/fall99/eecs471/sockets.html

You need to specifie path started from /

URL resource = YourClass.class.getResource("/abc");
Paths.get(resource.toURI()).toFile();

This might help someone.. My password contained a semicolon so was facing this issue.So added the password in quotes. It was really a silly mistake.

I changed the following :

<add name="db" connectionString="server=local;database=dbanme;user id=dbuser;password=pass;word" providerName="System.Data.SqlClient" />

to

<add name="db" connectionString="server=local;database=dbanme;user id=dbuser;password='pass;word'" providerName="System.Data.SqlClient" />

Please, place your command in a parameter like the mentioned below.

Runtime.getRuntime().exec("cmd.exe /c start cmd /k \" parameter \"");

For me the easiest way is definitely to use a BackgroundWorker, which is specifically designed for this kind of task. The ProgressChanged event is perfectly fitted to update a progress bar, without worrying about cross-thread calls

This will work:

if 'A' in df:

But for clarity, I'd probably write it as:

if 'A' in df.columns:

Here is how I achieved this without using configurations{ }.

apply plugin: 'java'

sourceCompatibility = JavaVersion.VERSION_1_6

sourceSets {
    integrationTest {
        java {
            srcDir 'src/integrationtest/java'
        }
        resources {
            srcDir 'src/integrationtest/resources'
        }
        compileClasspath += sourceSets.main.runtimeClasspath
    }
}

task integrationTest(type: Test) {
    description = "Runs Integration Tests"
    testClassesDir = sourceSets.integrationTest.output.classesDir
    classpath += sourceSets.integrationTest.runtimeClasspath
}

Tested using: Gradle 1.4 and Gradle 1.6

.remove() works like .find():

MyModel.remove({search: criteria}, function() {
    // removed.
});

ResultSet rs = Sstatement.executeQuery("SELECT * FROM Table Name");

ResultSetMetaData rsMetaData = rs.getMetaData();

int numberOfColumns = rsMetaData.getColumnCount();
System.out.println("resultSet MetaData column Count=" + numberOfColumns);

for (int i = 1; i <= numberOfColumns; i++) {
 System.out.println("column number " + i);

  System.out.println(rsMetaData.getColumnTypeName(i));
}

To do it without using a JavaScript library such as jQuery, you'd do it like this:

var span = document.getElementById("myspan"),
    text = document.createTextNode(''+intValue);
span.innerHTML = ''; // clear existing
span.appendChild(text);

If you do want to use jQuery, it's just this:

$("#myspan").text(''+intValue);

String a="Siva";

for(int i=0;i<=a.length()-1;i++){
    System.out.print(a.charAt(i));
}

for(int i = a.length() - 1; i >= 0; --i){
    System.out.println(a.charAt(i)); 
}

Getting the address of an arbitrary object in .NET is not possible, but can be done if you change the source code and use mono. See instructions here: Get Memory Address of .NET Object (C#)

The best way to resolve this task is (similar with PHP trim function):

function trim( str, charlist ) {_x000D_
  if ( typeof charlist == 'undefined' ) {_x000D_
    charlist = '\\s';_x000D_
  }_x000D_
  _x000D_
  var pattern = '^[' + charlist + ']*(.*?)[' + charlist + ']*$';_x000D_
  _x000D_
  return str.replace( new RegExp( pattern ) , '$1' )_x000D_
}_x000D_
_x000D_
document.getElementById( 'run' ).onclick = function() {_x000D_
  document.getElementById( 'result' ).value = _x000D_
  trim( document.getElementById( 'input' ).value,_x000D_
  document.getElementById( 'charlist' ).value);_x000D_
}

<div>_x000D_
  <label for="input">Text to trim:</label><br>_x000D_
  <input id="input" type="text" placeholder="Text to trim" value="dfstextfsd"><br>_x000D_
  <label for="charlist">Charlist:</label><br>_x000D_
  <input id="charlist" type="text" placeholder="Charlist" value="dfs"><br>_x000D_
  <label for="result">Result:</label><br>_x000D_
  <input id="result" type="text" placeholder="Result" disabled><br>_x000D_
  <button type="button" id="run">Trim it!</button>_x000D_
</div>

P.S.: why i posted my answer, when most people already done it before? Because i found "the best" mistake in all of there answers: all used the '+' meta instead of '*', 'cause trim must remove chars IF THEY ARE IN START AND/OR END, but it return original string in else case.

Kind of an anonymous lookup table rather than a long switch statement:

return (const char *[]) {
    "bananas & monkeys",
    "Round and orange", 
    "APPLE",
}[enumVal];

Just open the project in xcode app and it will automatically do all the imports and resolve issues. Worked for me, Xcode 10+

Edit 1: Open the iOS folder of your app not your global folder.

Neither is a good way to check for valid input.

• isset() is not sufficient because – as has been noted already – it considers an empty string to be a valid value.
• ! empty() is not sufficient either because it rejects '0', which could be a valid value.

Using isset() combined with an equality check against an empty string is the bare minimum that you need to verify that an incoming parameter has a value without creating false negatives:

if( isset($_GET['gender']) and ($_GET['gender'] != '') )
{
  ...
}

But by "bare minimum", I mean exactly that. All the above code does is determine whether there is some value for $_GET['gender']. It does not determine whether the value for $_GET['gender'] is valid (e.g., one of ("Male", "Female","FileNotFound")).

For that, see Josh Davis's answer.

Specify the Line Number using NR built-in variable.

awk 'NR==1{print $1}' /etc/*release

With expressjs, public it:

app.use('/stylesheets/fontawesome', express.static(__dirname + '/node_modules/@fortawesome/fontawesome-free/'));

And you can see it at: yourdomain.com/stylesheets/fontawesome/css/all.min.css

I very much liked John's answer, but I'd like to give it with some changes to those that want to test some client//server configuration by running a client TCP on the USB connected Mobile and a server on the local PC.

First it's quite obvious that the 10.0.2.2 won't work because this is a REAL hardware mobile and not a simulator.

So Follow John's instructions:

• Unplug all network cables on PC and turn off wifi.
• Turn off wifi on the android device
• Connect android device to pc via USB

• Turn on the "USB Tethering" (USB Modem/ USB Cellular Modem / USB ????? ????? ??????) in the android menu. (Under networks->more...->Tethering and portable hotspot")

  • This USB connection will act as a DHCP server for you single PC connection, so it'll assign your PC a dedicated (dynamic) IP in its local USB network. Now all you have to do is tell the client application this IP and port.

• Get the IP of your PC (that has been assigned by the USB tether cable.) (open command prompt and type "ipconfig" then look for the IP that the USB network adapter has assigned, in Linux its ifconfig or Ubuntu's "Connection information" etc..)

• Tell the application to connect to that IP (i.e. 192.168.42.87) with something like (Java - client side):

  String        serverIP      = "192.168.42.87";
  int           serverPort    = 5544;
  InetAddress   serverAddress = InetAddress.getByName(serverIP);
  Socket        socket         = new Socket(serverAddress, serverPort);
  ...
  

  Enjoy..

Albeit very similar to a previous suggestion, I like to keep it simple and apply the following:

string MyFancyString = "*";
int strLength = 50;
System.Console.WriteLine(MyFancyString.PadRight(strLength, "*");

Standard .Net really,

When this was asked there wasn't a way to do it natively, however this will be added on the next sync according to this pull request. Here is the last comment on the pull request - "Landed internally, will be out on the next sync"

When it is added you will be able to do something like this

<TextInput secureTextEntry={true} style={styles.default} value="abc" />

refs

I have found that %CD% gives the path the script was called from and not the path of the script, however, %~dp0 will give the path of the script itself.

In ruby I find this to be the most simple and easy to understand way to turn string keys in hashes to symbols :

my_hash.keys.each { |key| my_hash[key.to_sym] = my_hash.delete(key)}

For each key in the hash we call delete on it which removes it from the hash (also delete returns the value associated with the key that was deleted) and we immediately set this equal to the symbolized key.

I found a shortcut: File - Project Structure - Tab:Dependencies Click on the green + sign, select support-v4 (or any other you need), click OK.

now go to your gradle file and see that is been added

[[ -f ./${sname} ]] && read -p "File exists. Are you sure? " -n 1

[[ ! $REPLY =~ ^[Yy]$ ]] && exit 1

used this in a function to look for an existing file and prompt before overwriting.

Fortunately, it's not possible (for security reasons) to access client-side filesystem with standard JS. Some proprietary solutions exist though (like Microsoft's IE-only ActiveX component).

try this one out resizeable button

<button type="submit me" style="height: 25px; width: 100px">submit me</button>

You can set the background color of an object using CSS.

You can also use JavaScript to attach click handlers to objects and they can change the style of an object using element.style.property = 'value';. In the example below I've attached it in the HTML to a button but the handler could equally have been added to the body element or defined entirely in JavaScript.

body {_x000D_
  background-color: blue;_x000D_
}

<button onclick="document.body.style.backgroundColor = 'green';">Green</button>

The default value can be followed with a : after the property key, e.g.

<property name="port" value="${my.server.port:8080}" />

Or in java code:

@Value("${my.server.port:8080}")
private String myServerPort;

See:

• valueSeparator (from AbstractPropertyResolver)

• and VALUE_SEPARATOR (from SystemPropertyUtils)

BTW, the Elvis Operator is only available within Spring Expression Language (SpEL),
e.g.: https://stackoverflow.com/a/37706167/537554

Use character classes: [ \t]

For setting up path in Mac two methods can be followed.

1. Creating a file for variable name and paste the path there under /etc/paths.d and source the file to profile_bashrc.

2. Export path variable in ~/.profile_bashrc as

   export VARIABLE_NAME = $(PATH_VALUE)

AND source the the path. Its simple and stable.

You can set any path variable by Mac terminal or in linux also.

While I agree tables shouldn't be used for design layouts contrary to popular belief they do pass validation. i.e. the table tag is not deprecated. The best way to align radio buttons is using the vertical align middle CSS with margins adjusted on the input elements.

I see Federico you've found solution by yourself. The problem was in two places. Assignations need proper quoting, in your case

SOME_PATH="/$COMPANY/someProject/some path"

is one of possible solutions.

But in shell those quotes are not stored in a memory, so when you want to use this variable, you need to quote it again, for example:

NEW_VAR="$SOME_PATH"

because if not, space will be expanded to command level, like this:

NEW_VAR=/YourCompany/someProject/some path

which is not what you want.

_{For more info you can check out my article about it http://www.cofoh.com/white-shell}

I believe telnet 74.255.12.25 8089 . Why don't u try both

For Intellij IDEA version 11.0.2

File | Project Structure | Artifacts then you should press alt+insert or click the plus icon and create new artifact choose --> jar --> From modules with dependencies.

Next goto Build | Build artifacts --> choose your artifact.

source: http://blogs.jetbrains.com/idea/2010/08/quickly-create-jar-artifact/

Python 3.6

Just to make it clear, you can use f-string formatting. This has almost the same syntax as the format method, but make it a bit nicer.

Example:

print(f'{numvar:.9f}')

More reading about the new f string:

• What's new in Python 3.6 (same link as above)
• PEP official documentation
• Python official documentation
• Really good blog post - talks about performance too

Here is a diagram of the execution times of the various tested methods (from last link above):

i found mine here:

~/android-sdks/platforms/android-23/data/res/drawable...

You can make:

 (Some basic code) # Use "#" after a line and use:

 <#
    for more lines
    ...
    ...
    ...
    ..
    .
 #>

string stringToDecrypt = HttpContext.Current.Request.QueryString.ToString()

//change to string stringToDecrypt = HttpUtility.UrlDecode(HttpContext.Current.Request.QueryString.ToString())

I have found the SMB2 protocol introduced in Vista to lock the access databases. It can be disabled by the following regedit:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters] "Smb2"=dword:00000000

To all of you who got here and did not found the right solution, i found out that the mp4 video needs to fit a specific format.

My Problem was that i got an 1920x1080 video which wont load under Chrome (under Firefox it worked like a charm). After hours of searching i finaly managed to get hang of the problem, the first few streams where 1912x1088 so Chrome wont play it ( i got the exact stream size from the tool MediaInfo). So to fix it i just resized it to 1920x1080 and it worked.

og:title is one of the open graph meta tags. og:... properties define objects in a social graph. They are used for example by Facebook.

og:title stands for the title of your object as it should appear within the graph (see here for more http://ogp.me/ )

try this:

var result = from r in myDataTable.AsEnumerable()  
            where r.Field<string>("Name") != "n/a" &&  
                  r.Field<string>("Name") != "" select r;  
DataTable dtResult = result.CopyToDataTable();  

You might like the function GetInfoFromClosedFile()

Edit: Since the above link does not seem to work anymore, I am adding alternate link 1 and alternate link 2 + code:

Private Function GetInfoFromClosedFile(ByVal wbPath As String, _
    wbName As String, wsName As String, cellRef As String) As Variant
Dim arg As String
    GetInfoFromClosedFile = ""
    If Right(wbPath, 1) <> "" Then wbPath = wbPath & ""
    If Dir(wbPath & "" & wbName) = "" Then Exit Function
    arg = "'" & wbPath & "[" & wbName & "]" & _
        wsName & "'!" & Range(cellRef).Address(True, True, xlR1C1)
    On Error Resume Next
    GetInfoFromClosedFile = ExecuteExcel4Macro(arg)
End Function

Use underscore js or lodash,

var arrObj = [
    {
        "updated_at" : "2012-01-01T06:25:24Z",
        "foo" : "bar"
    },
    {
        "updated_at" : "2012-01-09T11:25:13Z",
        "foo" : "bar"
    },
    {
        "updated_at" : "2012-01-05T04:13:24Z",
        "foo" : "bar"
    }
];

arrObj = _.sortBy(arrObj,"updated_at");

_.sortBy() returns a new array

refer http://underscorejs.org/#sortBy and lodash docs https://lodash.com/docs#sortBy

I have just sent an email with gmail through Python. Try to use smtplib.SMTP_SSL to make the connection. Also, you may try to change the gmail domain and port.

So, you may get a chance with:

server = smtplib.SMTP_SSL('smtp.googlemail.com', 465)
server.login(gmail_user, password)
server.sendmail(gmail_user, TO, BODY)

As a plus, you could check the email builtin module. In this way, you can improve the readability of you your code and handle emails headers easily.

From Gradle Plugin User Guide:

When instrumentation tests are run, both the main APK and test APK share the same classpath. Gradle build will fail if the main APK and the test APK use the same library (e.g. Guava) but in different versions. If gradle didn't catch that, your app could behave differently during tests and during normal run (including crashing in one of the cases).

To make the build succeed, just make sure both APKs use the same version. If the error is about an indirect dependency (a library you didn't mention in your build.gradle), just add a dependency for the newer version to the configuration

Add this line to your build.gradle dependencies to use newer version for both APKs:

compile('com.google.code.findbugs:jsr305:2.0.1')

For future reference, you can check your Gradle Console and it will provide a helpful link next to the error to help with any gradle build errors.

As drew_w said, you can find a good example here.

HTML

<div id="wrapper">
    <div id="sidebar-wrapper">
        <ul class="sidebar-nav">
            <li class="sidebar-brand"><a href="#">Home</a></li>
            <li><a href="#">Another link</a></li>
            <li><a href="#">Next link</a></li>
            <li><a href="#">Last link</a></li>
        </ul>
    </div>
    <div id="page-content-wrapper">
        <div class="page-content">
            <div class="container">
                <div class="row">
                    <div class="col-md-12">
                        <!-- content of page -->
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

CSS

#wrapper {
  padding-left: 250px;
  transition: all 0.4s ease 0s;
}

#sidebar-wrapper {
  margin-left: -250px;
  left: 250px;
  width: 250px;
  background: #CCC;
  position: fixed;
  height: 100%;
  overflow-y: auto;
  z-index: 1000;
  transition: all 0.4s ease 0s;
}

#page-content-wrapper {
  width: 100%;
}

.sidebar-nav {
  position: absolute;
  top: 0;
  width: 250px;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (max-width:767px) {

    #wrapper {
      padding-left: 0;
    }

    #sidebar-wrapper {
      left: 0;
    }

    #wrapper.active {
      position: relative;
      left: 250px;
    }

    #wrapper.active #sidebar-wrapper {
      left: 250px;
      width: 250px;
      transition: all 0.4s ease 0s;
    }

}

JSFIDDLE

First set your path to C:/Program Files/Java/jdk1.8.0/bin in the environment variables. Say, your file is saved in the C: drive Now open the command prompt and move to the directory using c: javac Filename.java java Filename

Make sure you save the file name as .java.

If it is saved as a text file name then file not found error results as it cannot the text file.

import urllib.request

bank_pdf_list = ["https://www.hdfcbank.com/content/bbp/repositories/723fb80a-2dde-42a3-9793-7ae1be57c87f/?path=/Personal/Home/content/rates.pdf",
"https://www.yesbank.in/pdf/forexcardratesenglish_pdf",
"https://www.sbi.co.in/documents/16012/1400784/FOREX_CARD_RATES.pdf"]


def get_pdf(url):
    user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7'
    
    #url = "https://www.yesbank.in/pdf/forexcardratesenglish_pdf"
    headers={'User-Agent':user_agent,} 
    
    request=urllib.request.Request(url,None,headers) #The assembled request
    response = urllib.request.urlopen(request)
    #print(response.text)
    data = response.read()
#    print(type(data))
    
    name = url.split("www.")[-1].split("//")[-1].split(".")[0]+"_FOREX_CARD_RATES.pdf"
    f = open(name, 'wb')
    f.write(data)
    f.close()
    

for bank_url in bank_pdf_list:
    try: 
        get_pdf(bank_url)
    except:
        pass

If you would like to mount a particular host directory (/disk1/prometheus-data in the following example) as a volume in the volumes section of the Docker Compose YAML file, you can do it as below, e.g.:

version: '3'

services:
  prometheus:
    image: prom/prometheus
    volumes:
      - prometheus-data:/prometheus

volumes:
  prometheus-data:
    driver: local
    driver_opts:
      o: bind
      type: none
      device: /disk1/prometheus-data

By the way, in prometheus's Dockerfile, You may find the VOLUME instruction as below, which marks it as holding externally mounted volumes from native host, etc. (Note however: this instruction is not a must though to mount a volume into a container.):

Dockerfile

...
VOLUME ["/prometheus"]
...

Refs:

• https://docs.docker.com/compose/compose-file/#driver
• https://docs.docker.com/compose/compose-file/#driver_opts

you can use wc to count the number of characters in the file wc -m filename.txt. Hope that help.

As @Nils mentionned, you can use the update_fields keyword argument of the save() method to manually specify the fields to update.

obj_instance = Model.objects.get(field=value)
obj_instance.field = new_value
obj_instance.field2 = new_value2

obj_instance.save(update_fields=['field', 'field2'])

The update_fields value should be a list of the fields to update as strings.

See https://docs.djangoproject.com/en/2.1/ref/models/instances/#specifying-which-fields-to-save

Try this from your AndroidTabRestaurantDescSearchListView activity

Intent intent  = new Intent(this,RatingDescriptionSearchActivity.class );
intent.putExtras( getIntent().getExtras() );
startActivity( intent );  

And then from RatingDescriptionSearchActivity activity just call

getIntent().getStringExtra("key")

For those looking for a general strategy for reading and writing a string to file:

First, get a file object

You'll need the storage path. For the internal storage, use:

File path = context.getFilesDir();

For the external storage (SD card), use:

File path = context.getExternalFilesDir(null);

Then create your file object:

File file = new File(path, "my-file-name.txt");

Write a string to the file

FileOutputStream stream = new FileOutputStream(file);
try {
    stream.write("text-to-write".getBytes());
} finally {
    stream.close();
}

Or with Google Guava

String contents = Files.toString(file, StandardCharsets.UTF_8);

Read the file to a string

int length = (int) file.length();

byte[] bytes = new byte[length];

FileInputStream in = new FileInputStream(file);
try {
    in.read(bytes);
} finally {
    in.close();
}

String contents = new String(bytes);   

Or if you are using Google Guava

String contents = Files.toString(file,"UTF-8");

For completeness I'll mention

String contents = new Scanner(file).useDelimiter("\\A").next();

which requires no libraries, but benchmarks 50% - 400% slower than the other options (in various tests on my Nexus 5).

Notes

For each of these strategies, you'll be asked to catch an IOException.

The default character encoding on Android is UTF-8.

If you are using external storage, you'll need to add to your manifest either:

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

or

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

Write permission implies read permission, so you don't need both.

you can try this (I don't have sql server here today so I can't verify syntax, sorry)

select attributeName
  from tableName
 where CONVERT(varchar,attributeName,101) BETWEEN '03/01/2009' AND '03/31/2009'
   and CONVERT(varchar, attributeName,108) BETWEEN '06:00:00' AND '22:00:00'
   and DATEPART(day,attributeName) BETWEEN 2 AND 4

Here, You can Just Click on button then you will get Output. When You Click on Add row button then one more row Added.

I hope It is very helpful.

<html> 

<head> 
    <script src= 
            "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> 
    </script> 

    <style> 
        table { 
            margin: 25px 0; 
            width: 200px; 
        } 

        table th, table td { 
            padding: 10px; 
            text-align: center; 
        } 

        table, th, td { 
            border: 1px solid; 
        } 
    </style> 
</head> 

<body> 

    <b>Add table row in jQuery</b> 

    <p> 
        Click on the button below to 
        add a row to the table 
    </p> 

    <button class="add-row"> 
        Add row 
    </button> 

    <table> 
        <thead> 
            <tr> 
                <th>Rows</th> 
            </tr> 
        </thead> 
        <tbody> 
            <tr> 
                <td>This is row 0</td> 
            </tr> 
        </tbody> 
    </table> 

    <!-- Script to add table row -->
    <script> 
        let rowno = 1; 
        $(document).ready(function () { 
            $(".add-row").click(function () { 
                rows = "<tr><td>This is row " 
                    + rowno + "</td></tr>"; 
                tableBody = $("table tbody"); 
                tableBody.append(rows); 
                rowno++; 
            }); 
        }); 
    </script> 
</body> 
</html>                  

This is clearly a problem that a lot of programmers have and to which Google has yet to provide a satisfactory, supported solution.

There are a lot of crossed intentions and misunderstandings floating around posts on this topic, so please read this whole answer before responding.

Below I include a more "refined" and well-commented version of the hack from other answers on this page, also incorporating ideas from these very closely related questions:

Change background color of android menu

How to change the background color of the options menu?

Android: customize application's menu (e.g background color)

http://www.macadamian.com/blog/post/android_-_theming_the_unthemable/

Android MenuItem Toggle Button

Is it possible to make the Android options menu background non-translucent?

http://www.codeproject.com/KB/android/AndroidMenusMyWay.aspx

Setting the menu background to be opaque

I tested this hack on 2.1 (simulator), 2.2 (2 real devices), and 2.3 (2 real devices). I don't have any 3.X tablets to test on yet but will post any needed changes here when/if I do. Given that 3.X tablets use Action Bars instead of Options Menus, as explained here:

http://developer.android.com/guide/topics/ui/menus.html#options-menu

this hack will almost certainly do nothing (no harm and no good) on 3.X tablets.

STATEMENT OF THE PROBLEM (read this before trigger-replying with a negative comment):

The Options menu has vastly different styles on different devices. Pure black with white text on some, pure white with black text on some. I and many other developers wish to control the background color of the Options menu cells as well as the color of the Options menu text.

Certain app developers only need to set the cell background color (not the text color), and they can do this in a cleaner manner using the android:panelFullBackground style described in another answer. However, there is currently no way to control the Options menu text color with styles, and so one can only use this method to change the background to another color that won't make the text "disappear."

We would love to do this with a documented, future-proof solution, but one is simply not available as of Android <= 2.3. So we have to use a solution that works in current versions and is designed to minimize the chances of crashing/breaking in future versions. We want a solution that fails gracefully back to the default behavior if it has to fail.

There are many legitimate reasons why one may need to control the look of Options menus (typically to match a visual style for the rest of the app) so I won't dwell on that.

There is a Google Android bug posted about this: please add your support by starring this bug (note Google discourages "me too" comments: just a star is enough):

http://code.google.com/p/android/issues/detail?id=4441

SUMMARY OF SOLUTIONS SO FAR:

Several posters have suggested a hack involving LayoutInflater.Factory. The suggested hack worked for Android <= 2.2 and failed for Android 2.3 because the hack made an undocumented assumption: that one could call LayoutInflater.getView() directly without currently being inside a call to LayoutInflater.inflate() on the same LayoutInflater instance. New code in Android 2.3 broke this assumption and led to a NullPointerException.

My slightly refined hack below does not rely on this assumption.

Furthermore, the hacks also rely on using an internal, undocumented class name "com.android.internal.view.menu.IconMenuItemView" as a string (not as a Java type). I do not see any way to avoid this and still accomplish the stated goal. However, it is possible to do the hack in a careful way that will fall back if "com.android.internal.view.menu.IconMenuItemView" does not appear on the current system.

Again, understand that this is a hack and by no means am I claiming this will work on all platforms. But we developers are not living in a fantasy academic world where everything has to be by the book: we have a problem to solve and we have to solve it as best we can. For example, it seems unlikely that "com.android.internal.view.menu.IconMenuItemView" will exist on 3.X tablets since they use Action Bars instead of Options Menus.

Finally, some developers have solved this problem by totally suppressing the Android Options Menu and writing their own menu class (see some of the links above). I haven't tried this, but if you have time to write your own View and figure out how to replace Android's view (I'm sure the devil's in the details here) then it might be a nice solution that doesn't require any undocumented hacks.

HACK:

Here is the code.

To use this code, call addOptionsMenuHackerInflaterFactory() ONCE from your activity onCreate() or your activity onCreateOptionsMenu(). It sets a default factory that will affect subsequent creation of any Options Menu. It does not affect Options Menus that have already been created (the previous hacks used a function name of setMenuBackground(), which is very misleading since the function doesn't set any menu properties before it returns).

@SuppressWarnings("rawtypes")
static Class       IconMenuItemView_class = null;
@SuppressWarnings("rawtypes")
static Constructor IconMenuItemView_constructor = null;

// standard signature of constructor expected by inflater of all View classes
@SuppressWarnings("rawtypes")
private static final Class[] standard_inflater_constructor_signature = 
new Class[] { Context.class, AttributeSet.class };

protected void addOptionsMenuHackerInflaterFactory()
{
    final LayoutInflater infl = getLayoutInflater();

    infl.setFactory(new Factory()
    {
        public View onCreateView(final String name, 
                                 final Context context,
                                 final AttributeSet attrs)
        {
            if (!name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView"))
                return null; // use normal inflater

            View view = null;

            // "com.android.internal.view.menu.IconMenuItemView" 
            // - is the name of an internal Java class 
            //   - that exists in Android <= 3.2 and possibly beyond
            //   - that may or may not exist in other Android revs
            // - is the class whose instance we want to modify to set background etc.
            // - is the class we want to instantiate with the standard constructor:
            //     IconMenuItemView(context, attrs)
            // - this is what the LayoutInflater does if we return null
            // - unfortunately we cannot just call:
            //     infl.createView(name, null, attrs);
            //   here because on Android 3.2 (and possibly later):
            //   1. createView() can only be called inside inflate(),
            //      because inflate() sets the context parameter ultimately
            //      passed to the IconMenuItemView constructor's first arg,
            //      storing it in a LayoutInflater instance variable.
            //   2. we are inside inflate(),
            //   3. BUT from a different instance of LayoutInflater (not infl)
            //   4. there is no way to get access to the actual instance being used
            // - so we must do what createView() would have done for us
            //
            if (IconMenuItemView_class == null)
            {
                try
                {
                    IconMenuItemView_class = getClassLoader().loadClass(name);
                }
                catch (ClassNotFoundException e)
                {
                    // this OS does not have IconMenuItemView - fail gracefully
                    return null; // hack failed: use normal inflater
                }
            }
            if (IconMenuItemView_class == null)
                return null; // hack failed: use normal inflater

            if (IconMenuItemView_constructor == null)
            {
                try
                {
                    IconMenuItemView_constructor = 
                    IconMenuItemView_class.getConstructor(standard_inflater_constructor_signature);
                }
                catch (SecurityException e)
                {
                    return null; // hack failed: use normal inflater
                }
                catch (NoSuchMethodException e)
                {
                    return null; // hack failed: use normal inflater
                }
            }
            if (IconMenuItemView_constructor == null)
                return null; // hack failed: use normal inflater

            try
            {
                Object[] args = new Object[] { context, attrs };
                view = (View)(IconMenuItemView_constructor.newInstance(args));
            }
            catch (IllegalArgumentException e)
            {
                return null; // hack failed: use normal inflater
            }
            catch (InstantiationException e)
            {
                return null; // hack failed: use normal inflater
            }
            catch (IllegalAccessException e)
            {
                return null; // hack failed: use normal inflater
            }
            catch (InvocationTargetException e)
            {
                return null; // hack failed: use normal inflater
            }
            if (null == view) // in theory handled above, but be safe... 
                return null; // hack failed: use normal inflater


            // apply our own View settings after we get back to runloop
            // - android will overwrite almost any setting we make now
            final View v = view;
            new Handler().post(new Runnable()
            {
                public void run()
                {
                    v.setBackgroundColor(Color.BLACK);

                    try
                    {
                        // in Android <= 3.2, IconMenuItemView implemented with TextView
                        // guard against possible future change in implementation
                        TextView tv = (TextView)v;
                        tv.setTextColor(Color.WHITE);
                    }
                    catch (ClassCastException e)
                    {
                        // hack failed: do not set TextView attributes
                    }
                }
            });

            return view;
        }
    });
}

Thanks for reading and enjoy!

The sum function will add all numbers together to produce a single number, not a vector (well, at least not a vector of length greater than 1).

It looks as though at least one of your columns is a factor. You could convert them into numeric vectors by checking this

head(as.numeric(data$col1))  # make sure this gives you the right output

And if that looks right, do

data$col1 <- as.numeric(data$col1)
data$col2 <- as.numeric(data$col2)

You might have to convert them into characters first. In which case do

data$col1 <- as.numeric(as.character(data$col1))
data$col2 <- as.numeric(as.character(data$col2))

It's hard to tell which you should do without being able to see your data.

Once the columns are numeric, you just have to do

data$col3 <- data$col1 + data$col2

package main

import (
  "fmt"
)

func main() {
    var str1 = "string1"
    var str2 = "string2"
    out := fmt.Sprintf("%s %s ",str1, str2)
    fmt.Println(out)
}

Markdown gets converted into HTML/XHMTL.

John Gruber created the Markdown language in 2004 in collaboration with Aaron Swartz on the syntax, with the goal of enabling people to write using an easy-to-read, easy-to-write plain text format, and optionally convert it to structurally valid HTML (or XHTML).

HTML is completely based on using   for adding extra spaces if it doesn't externally define/use JavaScript or CSS for elements.

Markdown is a lightweight markup language with plain text formatting syntax. It is designed so that it can be converted to HTML and many other formats using a tool by the same name.

If you want to use »

1. only one space » either use   or just hit Spacebar (2nd one is good choice in this case)

2. more than one space » use  +space (for 2 consecutive spaces)

eg. If you want to add 10 spaces contiguously then you should use

                   

 space space space space space

instead of using 10   one after one as the below one

          

For more details check

1. Adding multiple spaces between text in Markdown,
2. How to create extra space in HTML or web page.

FirebaseInstanceIdService is now deprecated. you should get the Token in the onNewToken method in the FirebaseMessagingService.

Check out the docs

This is another simpler solution to your question

pd.read_json(data)

where data is the str output from the following code

response = urlopen("https://data.nasa.gov/resource/y77d-th95.json")
json_data = response.read().decode('utf-8', 'replace')

Kyle's solution worked perfectly fine for me so I made my research in order to avoid any Js and CSS, but just sticking with HTML. Adding a value of selected to the item we want to appear as a header forces it to show in the first place as a placeholder. Something like:

<option selected disabled>Choose here</option>

The complete markup should be along these lines:

<select>
    <option selected disabled>Choose here</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Four</option>
    <option value="5">Five</option>
</select>

You can take a look at this fiddle, and here's the result:

If you do not want the sort of placeholder text to appear listed in the options once a user clicks on the select box just add the hidden attribute like so:

<select>
    <option selected disabled hidden>Choose here</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Four</option>
    <option value="5">Five</option>
</select>

Check the fiddle here and the screenshot below.

Here is the solution:

<select>
    <option style="display:none;" selected>Select language</option>
    <option>Option 1</option>
    <option>Option 2</option>
</select>

Use the following command before defining them:

cmd.Parameters.Clear()

This should do what you are looking for:

<html>
    <head>
        <style type="text/css">
            #header {
                text-align: center;
            }
            #wrapper {
                margin:0 auto;
                width:600px;
            }
            #submain {
                margin:0 auto;
                width:600px;
            }
            #sub-left {
                float:left;
                width:300px;
            }
            #sub-right {
                float:right;
                width:240px;
                text-align: right;
            }
        </style>

    </head>
    <body>
        <div id="wrapper">
            <div id="header"><h1>Head</h1></div>
            <div id="sub-main">
                <div id="sub-left">
                    Right
                </div>
                <div id="sub-right">
                    Left
                </div>
            </div>
        </div>
    </body>
</html>

And you can control the entire document with the wrapper class, or just the two columns with the sub-main class.

I like this algorithm as it uses a 1x9 vs 3x3 representation of the board.

private int[] board = new int[9];
private static final int[] START = new int[] { 0, 3, 6, 0, 1, 2, 0, 2 };
private static final int[] INCR  = new int[] { 1, 1, 1, 3, 3, 3, 4, 2 };
private static int SIZE = 3;
/**
 * Determines if there is a winner in tic-tac-toe board.
 * @return {@code 0} for draw, {@code 1} for 'X', {@code -1} for 'Y'
 */
public int hasWinner() {
    for (int i = 0; i < START.length; i++) {
        int sum = 0;
        for (int j = 0; j < SIZE; j++) {
            sum += board[START[i] + j * INCR[i]];
        }
        if (Math.abs(sum) == SIZE) {
            return sum / SIZE;
        }
    }
    return 0;
}

In most cases, just purging the mysql-server package and re-installing it will do the job.

Run,

sudo apt-get purge mysql-server-5.1 mysql-common

followed by

sudo apt-get install mysql-server

Here's another case where raw types will bite you:

public class StrangeClass<T> {
  @SuppressWarnings("unchecked")
  public <X> X getSomethingElse() {
    return (X)"Testing something else!";
  }

  public static void main(String[] args) {
    final StrangeClass<String> withGeneric    = new StrangeClass<>();
    final StrangeClass         withoutGeneric = new StrangeClass();
    final String               value1,
                               value2;

    // Compiles
    value1 = withGeneric.getSomethingElse();

    // Produces compile error:
    // incompatible types: java.lang.Object cannot be converted to java.lang.String
    value2 = withoutGeneric.getSomethingElse();
  }
}

This is counter-intuitive because you'd expect the raw type to only affect methods bound to the class type parameter, but it actually also affects generic methods with their own type parameters.

As was mentioned in the accepted answer, you lose all support for generics within the code of the raw type. Every type parameter is converted to its erasure (which in the above example is just Object).

I add my SMS method if it can help someone. Be careful with smsManager.sendTextMessage, If the text is too long, the message does not go away. You have to respect max length depending of encoding. More information here SMS Manager send mutlipart message when there is less than 160 characters

//TO USE EveryWhere

SMSUtils.sendSMS(context, phoneNumber, message);

//Manifest

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

 <receiver
     android:name=".SMSUtils"
     android:enabled="true"
     android:exported="true">
     <intent-filter>
         <action android:name="SMS_SENT"/>
         <action android:name="SMS_DELIVERED"/>
      </intent-filter>
 </receiver>

//JAVA

public class SMSUtils extends BroadcastReceiver {

    public static final String SENT_SMS_ACTION_NAME = "SMS_SENT";
    public static final String DELIVERED_SMS_ACTION_NAME = "SMS_DELIVERED";

    @Override
    public void onReceive(Context context, Intent intent) {
        //Detect l'envoie de sms
        if (intent.getAction().equals(SENT_SMS_ACTION_NAME)) {
            switch (getResultCode()) {
                case Activity.RESULT_OK: // Sms sent
                    Toast.makeText(context, context.getString(R.string.sms_send), Toast.LENGTH_LONG).show();
                    break;
                case SmsManager.RESULT_ERROR_GENERIC_FAILURE: // generic failure
                    Toast.makeText(context, context.getString(R.string.sms_not_send), Toast.LENGTH_LONG).show();
                    break;
                case SmsManager.RESULT_ERROR_NO_SERVICE: // No service
                    Toast.makeText(context, context.getString(R.string.sms_not_send_no_service), Toast.LENGTH_LONG).show();
                    break;
                case SmsManager.RESULT_ERROR_NULL_PDU: // null pdu
                    Toast.makeText(context, context.getString(R.string.sms_not_send), Toast.LENGTH_LONG).show();
                    break;
                case SmsManager.RESULT_ERROR_RADIO_OFF: //Radio off
                    Toast.makeText(context, context.getString(R.string.sms_not_send_no_radio), Toast.LENGTH_LONG).show();
                    break;
            }
        }
        //detect la reception d'un sms
        else if (intent.getAction().equals(DELIVERED_SMS_ACTION_NAME)) {
            switch (getResultCode()) {
                case Activity.RESULT_OK:
                    Toast.makeText(context, context.getString(R.string.sms_receive), Toast.LENGTH_LONG).show();
                    break;
                case Activity.RESULT_CANCELED:
                    Toast.makeText(context, context.getString(R.string.sms_not_receive), Toast.LENGTH_LONG).show();
                    break;
            }
        }
    }

    /**
     * Test if device can send SMS
     * @param context
     * @return
     */
    public static boolean canSendSMS(Context context) {
        return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_TELEPHONY);
    }

    public static void sendSMS(final Context context, String phoneNumber, String message) {

        if (!canSendSMS(context)) {
            Toast.makeText(context, context.getString(R.string.cannot_send_sms), Toast.LENGTH_LONG).show();
            return;
        }

        PendingIntent sentPI = PendingIntent.getBroadcast(context, 0, new Intent(SENT_SMS_ACTION_NAME), 0);
        PendingIntent deliveredPI = PendingIntent.getBroadcast(context, 0, new Intent(DELIVERED_SMS_ACTION_NAME), 0);

        final SMSUtils smsUtils = new SMSUtils();
        //register for sending and delivery
        context.registerReceiver(smsUtils, new IntentFilter(SMSUtils.SENT_SMS_ACTION_NAME));
        context.registerReceiver(smsUtils, new IntentFilter(DELIVERED_SMS_ACTION_NAME));

        SmsManager sms = SmsManager.getDefault();
        ArrayList<String> parts = sms.divideMessage(message);

        ArrayList<PendingIntent> sendList = new ArrayList<>();
        sendList.add(sentPI);

        ArrayList<PendingIntent> deliverList = new ArrayList<>();
        deliverList.add(deliveredPI);

        sms.sendMultipartTextMessage(phoneNumber, null, parts, sendList, deliverList);

        //we unsubscribed in 10 seconds 
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                context.unregisterReceiver(smsUtils);
            }
        }, 10000);

    }
}

Approach 1

While converting a gray scale image to a binary image, we usually use cv2.threshold() and set a threshold value manually. Sometimes to get a decent result we opt for Otsu's binarization.

I have a small hack I came across while reading some blog posts.

1. Convert your color (RGB) image to gray scale.
2. Obtain the median of the gray scale image.
3. Choose a threshold value either 33% above the median

Why 33%?

This is because 33% works for most of the images/data-set.

You can also work out the same approach by replacing median with the mean.

Approach 2

Another approach would be to take an x number of standard deviations (std) from the mean, either on the positive or negative side; and set a threshold. So it could be one of the following:

• th1 = mean - (x * std)
• th2 = mean + (x * std)

Note: Before applying threshold it is advisable to enhance the contrast of the gray scale image locally (See CLAHE).

You can use JQuery to ensure that all elements of the documents are ready before it starts the client side scripting

$(document).ready(
    function()
    {
        document.getElementById(elmId).innerHTML = value;
    }
);

I have been trying all the answers here with no success. Here is the simplest way to do it with ms-appx

        ImageBrush myBrush = new ImageBrush();
        Image image = new Image();
        image.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/background.jpg"));
        myBrush.ImageSource = image.Source;
        TheGrid.Background = myBrush;

Assets folder is in the first level of my project, so make sure to change the path as convenient.

I would do it this way:

import sys

def main(argv):
    if len(argv) < 2:
        sys.stderr.write("Usage: %s <database>" % (argv[0],))
        return 1

    if not os.path.exists(argv[1]):
        sys.stderr.write("ERROR: Database %r was not found!" % (argv[1],))
        return 1

if __name__ == "__main__":
    sys.exit(main(sys.argv))

This allows main() to be imported into other modules if desired, and simplifies debugging because you can choose what argv should be.

Your document does not contain any element with class content-nav, thus the method .offset() returns undefined which indeed has no top property.

You can see for yourself in this fiddle

alert($('.content-nav').offset());

(you will see "undefined")

To avoid crashing the whole code, you can have such code instead:

var top = ($('.content-nav').offset() || { "top": NaN }).top;
if (isNaN(top)) {
    alert("something is wrong, no top");
} else {
    alert(top);
}

Updated fiddle.

Here's a way to create a flexible generator that allows you to add some rules:

function generatePassword(length, rules) {
    if (!length || length == undefined) {
        length = 8;
    }

    if (!rules || rules == undefined) {
        rules = [
            {chars: "abcdefghijklmnopqrstuvwxyz", min: 3},  // As least 3 lowercase letters
            {chars: "ABCDEFGHIJKLMNOPQRSTUVWXYZ", min: 2},  // At least 2 uppercase letters
            {chars: "0123456789", min: 2},                  // At least 2 digits
            {chars: "!@#$&*?|%+-_./:;=()[]{}", min: 1}      // At least 1 special char
        ];
    }

    var allChars = "", allMin = 0;
    rules.forEach(function(rule) {
        allChars += rule.chars;
        allMin += rule.min;
    });
    if (length < allMin) {
        length = allMin;
    }
    rules.push({chars: allChars, min: length - allMin});
    
    var pswd = "";
    rules.forEach(function(rule) {
        if (rule.min > 0) {
            pswd += shuffleString(rule.chars, rule.min);
        }
    });
    
    return shuffleString(pswd);
}

function shuffleString(str, maxlength) {
    var shuffledString = str.split('').sort(function(){return 0.5-Math.random()}).join('');
    if (maxlength > 0) {
        shuffledString = shuffledString.substr(0, maxlength);
    }
    return shuffledString;
}

var pswd = generatePassword(15, [
  {chars: "abcdefghijklmnopqrstuvwxyz", min: 4},  // As least 4 lowercase letters
  {chars: "ABCDEFGHIJKLMNOPQRSTUVWXYZ", min: 1},  // At least 1 uppercase letters
  {chars: "0123456789", min: 3},                  // At least 3 digits
  {chars: "!@#$&*?|%+-_./:;=()[]{}", min: 2}      // At least 2 special chars
]);

console.log(pswd, pswd.length);

You can compile individual files(s) from the command line with:

python -m compileall <file_1>.py <file_n>.py

int fileCount = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories).Length; // Will Retrieve count of all files in directry and sub directries

int fileCount = Directory.GetFiles(path, "*.*", SearchOption.TopDirectory).Length; // Will Retrieve count of all files in directry but not sub directries

int fileCount = Directory.GetFiles(path, "*.xml", SearchOption.AllDirectories).Length; // Will Retrieve count of files XML extension in directry and sub directries

I think you can use the nrows parameter. From the docs:

nrows : int, default None

    Number of rows of file to read. Useful for reading pieces of large files

which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):

In [1]: import pandas as pd

In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20)
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s

In [3]: len(z)
Out[3]: 20

In [4]: time z = pd.read_csv("P00000001-ALL.csv")
CPU times: user 27.63 s, sys: 1.92 s, total: 29.55 s
Wall time: 30.23 s

C++ (simplified):

echo {1..10} | scc 'WRL n+=$0; n'

SCC project - http://volnitsky.com/project/scc/

SCC is C++ snippets evaluator at shell prompt

I've had a very similar issue using spring-boot-starter-data-redis. To my implementation there was offered a @Bean for RedisTemplate as follows:

@Bean
public RedisTemplate<String, List<RoutePlantCache>> redisTemplate(RedisConnectionFactory connectionFactory) {
    final RedisTemplate<String, List<RoutePlantCache>> template = new RedisTemplate<>();
    template.setConnectionFactory(connectionFactory);
    template.setKeySerializer(new StringRedisSerializer());
    template.setValueSerializer(new Jackson2JsonRedisSerializer<>(RoutePlantCache.class));

    // Add some specific configuration here. Key serializers, etc.
    return template;
}

The fix was to specify an array of RoutePlantCache as following:

template.setValueSerializer(new Jackson2JsonRedisSerializer<>(RoutePlantCache[].class));

Below the exception I had:

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `[...].RoutePlantCache` out of START_ARRAY token
 at [Source: (byte[])"[{ ... },{ ... [truncated 1478 bytes]; line: 1, column: 1]
    at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1468) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1242) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1190) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeFromArray(BeanDeserializer.java:604) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:190) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:166) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4526) ~[jackson-databind-2.11.4.jar:2.11.4]
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3572) ~[jackson-databind-2.11.4.jar:2.11.4]

Constructors don't return a type , just remove the return type which is void in your case. It would run fine then.

Abstraction

In Java, abstraction means hiding the information to the real world. It establishes the contract between the party to tell about “what should we do to make use of the service”.

Example, In API development, only abstracted information of the service has been revealed to the world rather the actual implementation. Interface in java can help achieve this concept very well.

Interface provides contract between the parties, example, producer and consumer. Producer produces the goods without letting know the consumer how the product is being made. But, through interface, Producer let all consumer know what product can buy. With the help of abstraction, producer can markets the product to their consumers.

Encapsulation:

Encapsulation is one level down of abstraction. Same product company try shielding information from each other production group. Example, if a company produce wine and chocolate, encapsulation helps shielding information how each product Is being made from each other.

1. If I have individual package one for wine and another one for chocolate, and if all the classes are declared in the package as default access modifier, we are giving package level encapsulation for all classes.
2. Within a package, if we declare each class filed (member field) as private and having a public method to access those fields, this way giving class level encapsulation to those fields

For Mac Users if command + fn + f12 or command + f12 is not working, then your key map is not selected as "Mac Os X". To select key map follow the below steps.

Android Studio -> Preferences -> Keymap -> From the drop down Select "Mac OS X" -> Click Apply -> OK.

You can use the -v or --version flag. For example

gem install bitclock -v '< 0.0.2'

To specify upper AND lower version boundaries you can specify the --version flag twice

gem install bitclock -v '>= 0.0.1' -v '< 0.0.2'

or use the syntax (for example)

gem install bitclock -v '>= 0.0.1, < 0.0.2'

The other way to do it is

gem install bitclock:'>= 0.0.1'

but with the last option it is not possible to specify upper and lower bounderies simultaneously.

[gem 3.0.3 and ruby 2.6.6]

Oracle Setup:

CREATE OR REPLACE FUNCTION split_String(
  i_str    IN  VARCHAR2,
  i_delim  IN  VARCHAR2 DEFAULT ','
) RETURN SYS.ODCIVARCHAR2LIST DETERMINISTIC
AS
  p_result       SYS.ODCIVARCHAR2LIST := SYS.ODCIVARCHAR2LIST();
  p_start        NUMBER(5) := 1;
  p_end          NUMBER(5);
  c_len CONSTANT NUMBER(5) := LENGTH( i_str );
  c_ld  CONSTANT NUMBER(5) := LENGTH( i_delim );
BEGIN
  IF c_len > 0 THEN
    p_end := INSTR( i_str, i_delim, p_start );
    WHILE p_end > 0 LOOP
      p_result.EXTEND;
      p_result( p_result.COUNT ) := SUBSTR( i_str, p_start, p_end - p_start );
      p_start := p_end + c_ld;
      p_end := INSTR( i_str, i_delim, p_start );
    END LOOP;
    IF p_start <= c_len + 1 THEN
      p_result.EXTEND;
      p_result( p_result.COUNT ) := SUBSTR( i_str, p_start, c_len - p_start + 1 );
    END IF;
  END IF;
  RETURN p_result;
END;
/

Query

SELECT ROWNUM AS ID,
       COLUMN_VALUE AS Data
FROM   TABLE( split_String( 'A,B,C,D' ) );

Output:

ID DATA
-- ----
 1 A
 2 B
 3 C
 4 D

There's a simpler way to do this:

$(newHtml).appendTo('#myDiv').effects(...);

This turns things around by first creating newHtml with jQuery(html [, ownerDocument ]), and then using appendTo(target) (note the "To" bit) to add that it to the end of #mydiv.

Because you now start with $(newHtml) the end result of appendTo('#myDiv') is that new bit of html, and the .effects(...) call will be on that new bit of html too.

private List<object> ConvertArrayToList(object[] array)
{
  List<object> list = new List<object>();

  foreach(object obj in array)
    list.add(obj);

  return list;
}

You can reset your branch to the state it was in just before the merge if you find the commit it was on then.

One way is to use git reflog, it will list all the HEADs you've had. I find that git reflog --relative-date is very useful as it shows how long ago each change happened.

Once you find that commit just do a git reset --hard <commit id> and your branch will be as it was before.

If you have SourceTree, you can look up the <commit id> there if git reflog is too overwhelming.

Button mybutton = new Button(ViewPagerSample.this);
mybutton.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
            // TODO Auto-generated method stub
    }
});

C# uses the UTF16 format for its strings.
So, besides just converting the types, you should also be conscious about the string's actual format.

When compiling for Multi-byte Character set Visual Studio and the Win API assumes UTF8 (Actually windows encoding which is Windows-28591 ).
When compiling for Unicode Character set Visual studio and the Win API assume UTF16.

So, you must convert the string from UTF16 to UTF8 format as well, and not just convert to std::string.
This will become necessary when working with multi-character formats like some non-latin languages.

The idea is to decide that std::wstring always represents UTF16.
And std::string always represents UTF8.

This isn't enforced by the compiler, it's more of a good policy to have.

#include "stdafx.h"
#include <string>
#include <codecvt>
#include <msclr\marshal_cppstd.h>

using namespace System;

int main(array<System::String ^> ^args)
{
    System::String^ managedString = "test";

    msclr::interop::marshal_context context;

    //Actual format is UTF16, so represent as wstring
    std::wstring utf16NativeString = context.marshal_as<std::wstring>(managedString); 

    //C++11 format converter
    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> convert;

    //convert to UTF8 and std::string
    std::string utf8NativeString = convert.to_bytes(utf16NativeString);

    return 0;
}

Or have it in a more compact syntax:

int main(array<System::String ^> ^args)
{
    System::String^ managedString = "test";

    msclr::interop::marshal_context context;
    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> convert;

    std::string utf8NativeString = convert.to_bytes(context.marshal_as<std::wstring>(managedString));

    return 0;
}

I assume you mean list and not array? There is such a thing as an array in Python, but more often than not you want a list instead of an array.

The way to check if a list contains a value is to use in:

if paid[j] in d:
    # ...

You seem to be using grep() like the Unix grep utility, which is wrong.

Perl's grep() in scalar context evaluates the expression for each element of a list and returns the number of times the expression was true. So when $match contains any "true" value, grep($match, @array) in scalar context will always return the number of elements in @array.

Instead, try using the pattern matching operator:

if (grep /$match/, @array) {
    print "found it\n";
}

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
    let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
    var exampleViewController: ExampleViewController = mainStoryboard.instantiateViewControllerWithIdentifier("ExampleController") as! ExampleViewController

    self.window?.rootViewController = exampleViewController

    self.window?.makeKeyAndVisible()

    return true
}

rcedit is relative new and works well from the command line: https://github.com/atom/rcedit

$ rcedit "path-to-exe-or-dll" --set-version-string "Comments" "This is an exe"
$ rcedit "path-to-exe-or-dll" --set-file-version "10.7"
$ rcedit "path-to-exe-or-dll" --set-product-version "10.7"

There's also an NPM module which wraps it from JavaScript and a Grunt task in case you're using Grunt.

I encountered the same problem. This worked for me by changing '../assets/' to './assets/'.

 <img v-bind:src="'./assets/' + pic + '.png'" v-bind:alt="pic">

I got the error while trying to develop while disconnected to the Internet. However, the website I was working on needs to be able to talk to some other websites, so it choked when it couldn't do so. Connecting to the internet fixed the error.

The question was about the Popupwindow class, yet everybody has given answers that use the Dialog class. Thats pretty much useless if you need to use the Popupwindow class, because Popupwindow doesn't have a getWindow() method.

I've found a solution that actually works with Popupwindow. It only requires that the root of the xml file you use for the background activity is a FrameLayout. You can give the Framelayout element an android:foreground tag. What this tag does is specify a drawable resource that will be layered on top of the entire activity (that is, if the Framelayout is the root element in the xml file). You can then control the opacity (setAlpha()) of the foreground drawable.

You can use any drawable resource you like, but if you just want a dimming effect, create an xml file in the drawable folder with the <shape> tag as root.

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <solid android:color="#000000" />
</shape>

(See http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape for more info on the shape element). Note that I didn't specify an alpha value in the color tag that would make the drawable item transparent (e.g #ff000000). The reason for this is that any hardcoded alpha value seems to override any new alpha values we set via the setAlpha() in our code, so we don't want that. However, that means that the drawable item will initially be opaque (solid, non-transparent). So we need to make it transparent in the activity's onCreate() method.

Here's the Framelayout xml element code:

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mainmenu"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:foreground="@drawable/shape_window_dim" >
...
... your activity's content
...
</FrameLayout>

Here's the Activity's onCreate() method:

public void onCreate( Bundle savedInstanceState)
{
  super.onCreate( savedInstanceState);

  setContentView( R.layout.activity_mainmenu);

  //
  // Your own Activity initialization code
  //

  layout_MainMenu = (FrameLayout) findViewById( R.id.mainmenu);
  layout_MainMenu.getForeground().setAlpha( 0);
}

Finally, the code to dim the activity:

layout_MainMenu.getForeground().setAlpha( 220); // dim

layout_MainMenu.getForeground().setAlpha( 0); // restore

The alpha values go from 0 (opaque) to 255 (invisible). You should un-dim the activity when you dismiss the Popupwindow.

I haven't included code for showing and dismissing the Popupwindow, but here's a link to how it can be done: http://www.mobilemancer.com/2011/01/08/popup-window-in-android/

There is a mySQL bug report from 2004 that still seems to have some validity. It seems that in 4.x, this was fastest:

DROP table_name
CREATE TABLE table_name

TRUNCATE table_name was DELETE FROM internally back then, providing no performance gain.

This seems to have changed, but only in 5.0.3 and younger. From the bug report:

[11 Jan 2005 16:10] Marko Mäkelä

I've now implemented fast TRUNCATE TABLE, which will hopefully be included in MySQL 5.0.3.

I'm new to powershell but this seems to be most effective:

doSomething -arg myArg
if (-not $?) {throw "Failed to doSomething"}

I know you have already accepted another answer, but I think the broader issue needs to addressed - programming style that is suitable to the current language.

Yes, 'initialization' isn't needed in Python, but what you are doing isn't initialization. It is just an incomplete and erroneous imitation of initialization as practiced in other languages. The important thing about initialization in static typed languages is that you specify the nature of the variables.

In Python, as in other languages, you do need to give variables values before you use them. But giving them values at the start of the function isn't important, and even wrong if the values you give have nothing to do with values they receive later. That isn't 'initialization', it's 'reuse'.

I'll make some notes and corrections to your code:

def main():
   # doc to define the function
   # proper Python indentation
   # document significant variables, especially inputs and outputs
   # grade_1, grade_2, grade_3, average - id these
   # year - id this
   # fName, lName, ID, converted_ID 

   infile = open("studentinfo.txt", "r") 
   # you didn't 'intialize' this variable

   data = infile.read()  
   # nor this  

   fName, lName, ID, year = data.split(",")
   # this will produce an error if the file does not have the right number of strings
   # 'year' is now a string, even though you 'initialized' it as 0

   year = int(year)
   # now 'year' is an integer
   # a language that requires initialization would have raised an error
   # over this switch in type of this variable.

   # Prompt the user for three test scores
   grades = eval(input("Enter the three test scores separated by a comma: "))
   # 'eval' ouch!
   # you could have handled the input just like you did the file input.

   grade_1, grade_2, grade_3 = grades   
   # this would work only if the user gave you an 'iterable' with 3 values
   # eval() doesn't ensure that it is an iterable
   # and it does not ensure that the values are numbers. 
   # What would happen with this user input: "'one','two','three',4"?

   # Create a username 
   uName = (lName[:4] + fName[:2] + str(year)).lower()

   converted_id = ID[:3] + "-" + ID[3:5] + "-" + ID[5:]
   # earlier you 'initialized' converted_ID
   # initialization in a static typed language would have caught this typo
   # pseudo-initialization in Python does not catch typos
   ....

CREATE TRIGGER sampleTrigger
    ON database1.dbo.table1
    FOR DELETE
AS
    DELETE FROM database2.dbo.table2
    WHERE bar = 4 AND ID IN(SELECT deleted.id FROM deleted)
GO

try this code instead of finish:

onBackPressed();

This is the format of /etc/crontab:

# .---------------- minute (0 - 59)
# |  .------------- hour (0 - 23)
# |  |  .---------- day of month (1 - 31)
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# |  |  |  |  |
# *  *  *  *  * user-name  command to be executed

I recommend copy & pasting that into the top of your crontab file so that you always have the reference handy. RedHat systems are setup that way by default.

To run something every minute:

* * * * * username /var/www/html/a.php

To run something at midnight of every day:

0 0 * * * username /var/www/html/reset.php

You can either include /usr/bin/php in the command to run, or you can make the php scripts directly executable:

chmod +x file.php

Start your php file with a shebang so that your shell knows which interpreter to use:

#!/usr/bin/php
<?php
// your code here

Neither.

Django is a framework, not a language. Python is the language in which Django is written.

Django is a collection of Python libs allowing you to quickly and efficiently create a quality Web application, and is suitable for both frontend and backend.

However, Django is pretty famous for its "Django admin", an auto generated backend that allows you to manage your website in a blink for a lot of simple use cases without having to code much.

More precisely, for the front end, Django helps you with data selection, formatting, and display. It features URL management, a templating language, authentication mechanisms, cache hooks, and various navigation tools such as paginators.

For the backend, Django comes with an ORM that lets you manipulate your data source with ease, forms (an HTML independent implementation) to process user input and validate data and signals, and an implementation of the observer pattern. Plus a tons of use-case specific nifty little tools.

For the rest of the backend work Django doesn't help with, you just use regular Python. Business logic is a pretty broad term.

You probably want to know as well that Django comes with the concept of apps, a self contained pluggable Django library that solves a problem. The Django community is huge, and so there are numerous apps that do specific business logic that vanilla Django doesn't.

Add following to your gradle file in android section

    lintOptions {
       disable 'MissingTranslation'
    }

If you're working with actual files (as opposed to some sort of string data), how about the following?

$files | % { "$($_.BaseName -replace '_[^_]+$','')$($_.Extension)" }

(or use _.+$ if you want to cut everything from the first underscore.)

Calculating Distance between Latitude and Longitude points...

        double Lat1 = Convert.ToDouble(latitude);
        double Long1 = Convert.ToDouble(longitude);

        double Lat2 = 30.678;
        double Long2 = 45.786;
        double circumference = 40000.0; // Earth's circumference at the equator in km
        double distance = 0.0;
        double latitude1Rad = DegreesToRadians(Lat1);
        double latititude2Rad = DegreesToRadians(Lat2);
        double longitude1Rad = DegreesToRadians(Long1);
        double longitude2Rad = DegreesToRadians(Long2);
        double logitudeDiff = Math.Abs(longitude1Rad - longitude2Rad);
        if (logitudeDiff > Math.PI)
        {
            logitudeDiff = 2.0 * Math.PI - logitudeDiff;
        }
        double angleCalculation =
            Math.Acos(
              Math.Sin(latititude2Rad) * Math.Sin(latitude1Rad) +
              Math.Cos(latititude2Rad) * Math.Cos(latitude1Rad) * Math.Cos(logitudeDiff));
        distance = circumference * angleCalculation / (2.0 * Math.PI);
        return distance;

In addition to Tim's answer, which is very appropriate to your specific example, it's worth mentioning collections.defaultdict, which lets you do stuff like this:

>>> d = defaultdict(int)
>>> d[0] += 1
>>> d
{0: 1}
>>> d[4] += 1
>>> d
{0: 1, 4: 1}

For mapping [1, 2, 3, 4] as in your example, it's a fish out of water. But depending on the reason you asked the question, this may end up being a more appropriate technique.

$_SERVER['REMOTE_ADDR'];

Example:

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
    $ip = $_SERVER['REMOTE_ADDR'];
}

Another option is to convert nil to an empty result on the fly:

(my_string||'').empty?

Perhaps the simplest way to solve this (that will work) is:

• CREATE new_table AS SELECT id, col1, col2, ... (only the columns you actually want in the final table) FROM my_table;

• RENAME my_table TO old_table, new_table TO my_table;

• DROP old_table;

Or keep old_table for a rollback if needed.

This will work but foreign keys will not be moved. You would have to re-add them to my_table later; also foreign keys in other tables that reference my_table will have to be fixed (pointed to the new my_table).

Good Luck...

Why does TypeError: 'list' object is not callable appear?

Explanation:

It is because you defined list as a variable before (i am pretty sure), so it would be a list, not the function anymore, that's why everyone shouldn't name variables functions, the below is the same as what you're doing now:

>>> [1,2,3]()
Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    [1,2,3]()
TypeError: 'list' object is not callable
>>>  

So you need it to be the default function of list, how to detect if it is? just use:

>>> list
<class 'list'>
>>> list = [1,2,3]
>>> list
[1, 2, 3]
>>> list()
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    list()
TypeError: 'list' object is not callable
>>> 

How do i detect whether a variable name is a function? well, just simple see if it has a different color, or use a code like:

>>> 'list' in dir(__builtins__)
True
>>> 'blah' in dir(__builtins__)
False
>>> 

After this, you should know why does TypeError: 'list' object is not callable appear.

Okay, so now...

How to fix this TypeError: 'list' object is not callable error?

Code:

You have to either do __builtins__.list():

>>> list = [1,2,3]
>>> __builtins__.list()
[]
>>> 

Or use []:

>>> list = [1,2,3]
>>> []
[]
>>> 

Or remove list variable from memory:

>>> list = [1,2,3]
>>> del list
>>> list()
[]
>>> 

Or just rename the variable:

>>> lst = [1,2,3]
>>> list()
[]
>>> 

P.S. Last one is the most preferable i guess :-)

There are a whole bunch of solutions that work.

References:

'id' is a bad variable name in Python

How do I use a keyword as a variable name?

How to use reserved keyword as the name of variable in python?

Your decision should be based on

• your actual need for these "more features"; and
• your expected cost of implementing the change.

You should resist the urge to change APIs just because it's "newer, shinier, better." I follow a policy of "if it's not broken, don't kick it."

If your application requires a very sophisticated logging framework, you may want to consider why.

Just a fyi for people enabling mod_rewrite on Debian with Apache2:

To check whether mod_rewrite is enabled:

Look in mods_enabled for a link to the module by running

ls /etc/apache2/mods-enabled | grep rewrite

If this outputs rewrite.load then the module is enabled. (Note: your path to apache2 may not be /etc/, though it's likely to be.)

To enable mod_rewrite if it's not already:

Enable the module (essentially creates the link we were looking for above):

a2enmod rewrite

Reload all apache config files:

service apache2 restart

The BigDecimal(double) constructor can have unpredictable behaviors. It is preferable to use BigDecimal(String) or BigDecimal.valueOf(double).

System.out.println(new BigDecimal(135.69)); //135.68999999999999772626324556767940521240234375
System.out.println(new BigDecimal("135.69")); // 135.69
System.out.println(BigDecimal.valueOf(135.69)); // 135.69

The documentation for BigDecimal(double) explains in detail:

1. The results of this constructor can be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be represented exactly as a double (or, for that matter, as a binary fraction of any finite length). Thus, the value that is being passed in to the constructor is not exactly equal to 0.1, appearances notwithstanding.
2. The String constructor, on the other hand, is perfectly predictable: writing new BigDecimal("0.1") creates a BigDecimal which is exactly equal to 0.1, as one would expect. Therefore, it is generally recommended that the String constructor be used in preference to this one.
3. When a double must be used as a source for a BigDecimal, note that this constructor provides an exact conversion; it does not give the same result as converting the double to a String using the Double.toString(double) method and then using the BigDecimal(String) constructor. To get that result, use the static valueOf(double) method.

If, running an Oracle HotSpot JDK 1.7.x, on a Linux platform where your locale suggests UTF-8 (e.g. LANG=en_US.utf8), if you don't set it on the command-line with -Dfile.encoding, the JDK will default file.encoding and the default Charset like this:

System.out.println(String.format("file.encoding: %s", System.getProperty("file.encoding")));
System.out.println(String.format("defaultCharset: %s", Charset.defaultCharset().name()));

... yields:

file.encoding: UTF-8
defaultCharset: UTF-8

... suggesting the default is UTF-8 on such a platform.

Additionally, if java.nio.charset.Charset.defaultCharset() finds file.encoding not-set, it looks for java.nio.charset.Charset.forName("UTF-8"), suggesting it prefers that string, although it is well-aliased, so "UTF8" will also work fine.

If you run the same program on the same platform with java -Dfile.encoding=UTF8, without the hypen, it yields:

file.encoding: UTF8
defaultCharset: UTF-8

... noting that the default charset has been canonicalized from UTF8 to UTF-8.

404 is just fine. HTTP/1.1 Status Code Definitions from RFC2616

By default, Java's int and long math silently wrap around on overflow and underflow. (Integer operations on other integer types are performed by first promoting the operands to int or long, per JLS 4.2.2.)

As of Java 8, java.lang.Math provides addExact, subtractExact, multiplyExact, incrementExact, decrementExact and negateExact static methods for both int and long arguments that perform the named operation, throwing ArithmeticException on overflow. (There's no divideExact method -- you'll have to check the one special case (MIN_VALUE / -1) yourself.)

As of Java 8, java.lang.Math also provides toIntExact to cast a long to an int, throwing ArithmeticException if the long's value does not fit in an int. This can be useful for e.g. computing the sum of ints using unchecked long math, then using toIntExact to cast to int at the end (but be careful not to let your sum overflow).

If you're still using an older version of Java, Google Guava provides IntMath and LongMath static methods for checked addition, subtraction, multiplication and exponentiation (throwing on overflow). These classes also provide methods to compute factorials and binomial coefficients that return MAX_VALUE on overflow (which is less convenient to check). Guava's primitive utility classes, SignedBytes, UnsignedBytes, Shorts and Ints, provide checkedCast methods for narrowing larger types (throwing IllegalArgumentException on under/overflow, not ArithmeticException), as well as saturatingCast methods that return MIN_VALUE or MAX_VALUE on overflow.

1...Using the short cut Ctlr + Alt + T to open terminal

2...Execute the below command:

echo export JAVA_HOME='$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")' | sudo tee /etc/profile.d/jdk_home.sh > /dev/null

3...(Recommended) Restart your VM / computer. You can use source /etc/source if don't want to restart computer

4...Using the short cut Ctlr + Alt + T to open terminal

5...Verified JAVA_HOME installment with

echo $JAVA_HOME

One-liner copy from flob, credit to them

Do you mean that you've got code like

if(map.containsKey(key)) doSomethingWith(map.get(key))

all over the place ? Then you should simply check whether map.get(key) returned null and that's it. By the way, HashMap doesn't throw exceptions for missing keys, it returns null instead. The only case where containsKey is needed is when you're storing null values, to distinguish between a null value and a missing value, but this is usually considered bad practice.

Please consider the deasync module, personally I don't like the Promise way to make all functions async, and keyword async/await anythere. And I think the official node.js should consider to expose the event loop API, this will solve the callback hell simply. Node.js is a framework not a language.

var node = require("deasync");
node.loop = node.runLoopOnce;

var done = 0;
// async call here
db.query("select * from ticket", (error, results, fields)=>{
    done = 1;
});

while (!done)
    node.loop();

// Now, here you go

If you want to add your custom headers to ALL requests, you can change the defaults on $httpProvider to always add this header…

app.config(['$httpProvider', function ($httpProvider) {
    $httpProvider.defaults.headers.common = { 
        'Authorization': 'Basic d2VudHdvcnRobWFuOkNoYW5nZV9tZQ==',
        'Accept': 'application/json;odata=verbose'
      };
}]);

Another simple way to exclude the auto configuration classes,

Add below similar configuration to your application.yml file,

---
spring:
  profiles: test
  autoconfigure.exclude: org.springframework.boot.autoconfigure.session.SessionAutoConfiguration

This problem could be solved as mentioned using the .on on jQuery 1.7+ versions.

Unfortunately, this didn't work within my code (and I have 1.11) so I used:

$('body').delegate('.logout-link','click',function() {

http://api.jquery.com/delegate/

As of jQuery 3.0, .delegate() has been deprecated. It was superseded by the .on() method since jQuery 1.7, so its use was already discouraged. For earlier versions, however, it remains the most effective means to use event delegation. More information on event binding and delegation is in the .on() method. In general, these are the equivalent templates for the two methods:

// jQuery 1.4.3+
$( elements ).delegate( selector, events, data, handler );
// jQuery 1.7+
$( elements ).on( events, selector, data, handler );

This comment might help others :) !

Look at the find command.

What you are looking for is something like

find . -name "*.xls" -type f -exec program 

Post edit

find . -name "*.xls" -type f -exec xls2csv '{}' '{}'.csv;

will execute xls2csv file.xls file.xls.csv

Closer to what you want.

You can use StringEx. It extends String with string-to-number conversions including toDouble().

extension String {
    func toDouble() -> Double?
}

It verifies the string and fails if it can't be converted to double.

Example:

import StringEx

let str = "123.45678"
if let num = str.toDouble() {
    println("Number: \(num)")
} else {
    println("Invalid string")
}

Add a class to the containing div, then set the following css on it:

.img-overlay {
    position: relative;
    max-width: 500px; //whatever your max-width should be 
}

position: relative is required on a parent element of children with position: absolute for the children to be positioned in relation to that parent.

DEMO

$rootbeer = (float) $InvoicedUnits;

Should do it for you. Check out Type-Juggling. You should also read String conversion to Numbers.

Yet another trick (as of v1.6)

A=np.arange(1,10).reshape(3,3)
b=np.arange(3)

np.einsum('ij,i->ij',A,b)

I'm proficient with the numpy broadcasting (newaxis), but I'm still finding my way around this new einsum tool. So I had play around a bit to find this solution.

Timings (using Ipython timeit):

einsum: 4.9 micro
transpose: 8.1 micro
newaxis: 8.35 micro
dot-diag: 10.5 micro

Incidentally, changing a i to j, np.einsum('ij,j->ij',A,b), produces the matrix that Alex does not want. And np.einsum('ji,j->ji',A,b) does, in effect, the double transpose.

If you need only change url but prevent change state:

Change location with (add .replace if you want to replace in history):

this.$location.path([Your path]).replace();

Prevent redirect to your state:

$transitions.onBefore({}, function($transition$) {
 if ($transition$.$to().name === '[state name]') {
   return false;
 }
});

If you're parsing the file with a FOR command in a batch file a semicolon works (;)

REM test.bat contents

for /F "tokens=1-3 delims=," %%a in (test.csv) do @Echo %%a, %%b, %%c

;test.csv contents (this line is a comment)

;1,ignore this line,no it shouldn't

2,parse this line,yes it should!

;3,ignore this line,no it shouldn't

4,parse this line,yes it should!

OUTPUT:

2, parse this line, yes it should!

4, parse this line, yes it should!

I tried printing Multiple Tables using Mahesh Example above. Posting for convenience of others

USE MyDataBase

DECLARE @RECORDS_THAT_NEED_TO_SEND_EMAIL TABLE (ID INT IDENTITY(1,1),
                                                POS_ID INT, 
                                                POS_NUM VARCHAR(100) NULL, 
                                                DEPARTMENT VARCHAR(100) NULL, 
                                                DISTRICT VARCHAR(50) NULL,
                                                COST_LOC VARCHAR(100) NULL,
                                                EMPLOYEE_NAME VARCHAR(200) NULL)

INSERT INTO @RECORDS_THAT_NEED_TO_SEND_EMAIL(POS_ID,POS_NUM,DISTRICT,COST_LOC,DEPARTMENT,EMPLOYEE_NAME) 
SELECT uvwpos.POS_ID,uvwpos.POS_NUM,uvwpos.DISTRICT, uvwpos.COST_LOC,uvwpos.DEPARTMENT,uvemp.LAST_NAME + ' ' + uvemp.FIRST_NAME 
FROM uvwPOSITIONS uvwpos LEFT JOIN uvwEMPLOYEES uvemp 
on uvemp.POS_ID=uvwpos.POS_ID 
WHERE uvwpos.ACTIVE=1 AND uvwpos.POS_NUM LIKE 'sde%'AND (
(RTRIM(LTRIM(LEFT(uvwpos.DEPARTMENT,LEN(uvwpos.DEPARTMENT)-1))) <> RTRIM(LTRIM(uvwpos.COST_LOC))) 
OR (uvwpos.DISTRICT IS NULL) 
OR (uvwpos.COST_LOC IS NULL)   )

DECLARE @RESULT_DISTRICT_ISEMPTY varchar(4000)
DECLARE @RESULT_COST_LOC_ISEMPTY varchar(4000)
DECLARE @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING  varchar(4000)
DECLARE @BODY NVARCHAR(MAX)
DECLARE @HTMLHEADER VARCHAR(100)
DECLARE @HTMLFOOTER VARCHAR(100)
SET @HTMLHEADER='<html><body>'
SET @HTMLFOOTER ='</body></html>'
SET @RESULT_DISTRICT_ISEMPTY  = '';
SET @BODY =@HTMLHEADER+ '<H3>PositionNumber where District is Empty.</H3>
<table border = 1> 
<tr>
<th> POS_ID </th> <th> POS_NUM </th> <th> DEPARTMENT </th> <th> DISTRICT </th> <th> COST_LOC </th></tr>'   

SET @RESULT_DISTRICT_ISEMPTY = CAST(( SELECT [POS_ID] AS 'td','',RTRIM([POS_NUM]) AS 'td','',
     ISNULL(LEFT(DEPARTMENT,LEN(DEPARTMENT)-1),'          ') AS 'td','', ISNULL([DISTRICT],'        ')  AS 'td','',ISNULL([COST_LOC],'           ') AS 'td'
FROM  @RECORDS_THAT_NEED_TO_SEND_EMAIL 
WHERE DISTRICT IS NULL
FOR XML PATH('tr'), ELEMENTS ) AS VARCHAR(MAX))

SET @BODY = @BODY + @RESULT_DISTRICT_ISEMPTY +'</table>'


DECLARE @RESULT_COST_LOC_ISEMPTY_HEADER VARCHAR(400)
SET @RESULT_COST_LOC_ISEMPTY_HEADER  ='<H3>PositionNumber where COST_LOC is Empty.</H3>
<table border = 1> 
<tr>
<th> POS_ID </th> <th> POS_NUM </th> <th> DEPARTMENT </th> <th> DISTRICT </th> <th> COST_LOC </th></tr>'   

SET @RESULT_COST_LOC_ISEMPTY = CAST(( SELECT [POS_ID] AS 'td','',RTRIM([POS_NUM]) AS 'td','',
     ISNULL(LEFT(DEPARTMENT,LEN(DEPARTMENT)-1),'          ') AS 'td','', ISNULL([DISTRICT],'        ')  AS 'td','',ISNULL([COST_LOC],'           ') AS 'td'
FROM  @RECORDS_THAT_NEED_TO_SEND_EMAIL 
WHERE COST_LOC IS NULL
FOR XML PATH('tr'), ELEMENTS ) AS VARCHAR(MAX))

SET @BODY = @BODY + @RESULT_COST_LOC_ISEMPTY_HEADER+ @RESULT_COST_LOC_ISEMPTY +'</table>'

DECLARE @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING_HEADER VARCHAR(400)
SET @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING_HEADER='<H3>PositionNumber where Department and Cost Center are Not Macthing.</H3>
<table border = 1> 
<tr>
<th> POS_ID </th> <th> POS_NUM </th> <th> DEPARTMENT </th> <th> DISTRICT </th> <th> COST_LOC </th></tr>'   
SET @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING = CAST(( SELECT [POS_ID] AS 'td','',RTRIM([POS_NUM]) AS 'td','',
     ISNULL(LEFT(DEPARTMENT,LEN(DEPARTMENT)-1),'          ') AS 'td','', ISNULL([DISTRICT],'        ')  AS 'td','',ISNULL([COST_LOC],'           ') AS 'td'
FROM  @RECORDS_THAT_NEED_TO_SEND_EMAIL 
WHERE 
(RTRIM(LTRIM(LEFT(DEPARTMENT,LEN(DEPARTMENT)-1))) <> RTRIM(LTRIM(COST_LOC)))
FOR XML PATH('tr'), ELEMENTS ) AS VARCHAR(MAX))

SET @BODY = @BODY + @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING_HEADER+ @RESULT_COST_LOC__AND_DISTRICT_NOT_MATCHING  +'</table>'


SET @BODY = @BODY + @HTMLFOOTER

USE DDDADMINISTRATION_DB
--SEND EMAIL
exec DDDADMINISTRATION_DB.dbo.uspSMTP_NOTIFY_HTML
                              @EmailSubject = 'District,Department & CostCenter Discrepancies', 
                              @EmailMessage = @BODY, 
                              @ToEmailAddress  = '[email protected]', 
                              @FromEmailAddress  = '[email protected]' 


EXEC msdb.dbo.sp_send_dbmail
@profile_name = 'MY POROFILE', -- replace with your SQL Database Mail Profile 
@body = @BODY,
@body_format ='HTML',
@recipients = '[email protected]', -- replace with your email address
@subject = 'District,Department & CostCenter Discrepancies' ;

Use $.on() to bind your chosen event to the input, don't use the shortcuts like $.keydown() etc because as of jQuery 1.7 $.on() is the preferred method to attach event handlers (see here: http://api.jquery.com/on/ and http://api.jquery.com/bind/).

$.keydown() is just a shortcut to $.bind('keydown'), and $.bind() is what $.on() replaces (among others).

To answer your question, as far as I'm aware, unless you need to fire an event on keydown specifically, the change event should do the trick for you.

$('element').on('change', function(){
    console.log('change');
});

To respond to the below comment, the javascript change event is documented here: https://developer.mozilla.org/en-US/docs/Web/Events/change

And here is a working example of the change event working on an input element, using jQuery: http://jsfiddle.net/p1m4xh08/

Since TypeScript is a typed superset of ES6 JavaScript. And lodash are a library of javascript.

Using lodash to checks if value is null or undefined can be done using _.isNil().

_.isNil(value)

Arguments

value (*): The value to check.

Returns

(boolean): Returns true if value is nullish, else false.

Example

_.isNil(null);
// => true

_.isNil(void 0);
// => true

_.isNil(NaN);
// => false

Link

Lodash Docs

Yowsup provide best solution with example.you can download api from https://github.com/tgalal/yowsup let me know if you have any issue.

ServicePointManager.ServerCertificateValidationCallback isn't supported in .Net Core.

Current situation is that it will be a a new ServerCertificateCustomValidationCallback method for the upcoming 4.1.* System.Net.Http contract (HttpClient). .NET Core team are finalizing the 4.1 contract now. You can read about this in here on github

You can try out the pre-release version of System.Net.Http 4.1 by using the sources directly here in CoreFx or on the MYGET feed: https://dotnet.myget.org/gallery/dotnet-core

Current WinHttpHandler.ServerCertificateCustomValidationCallback definition on Github

The ~/Library/Developer/Xcode/iOS DeviceSupport folder is basically only needed to symbolicate crash logs.

You could completely purge the entire folder. Of course the next time you connect one of your devices, Xcode would redownload the symbol data from the device.

I clean out that folder once a year or so by deleting folders for versions of iOS I no longer support or expect to ever have to symbolicate a crash log for.

the Demo from Apple document. https://developer.apple.com/documentation/swift/using_objective-c_runtime_features_in_swift

import UIKit
class MyViewController: UIViewController {
    let myButton = UIButton(frame: CGRect(x: 0, y: 0, width: 100, height: 50))

    override init(nibName nibNameOrNil: NSNib.Name?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
        // without parameter style
        let action = #selector(MyViewController.tappedButton)
        // with parameter style
        // #selector(MyViewController.tappedButton(_:))
        myButton.addTarget(self, action: action, forControlEvents: .touchUpInside)
    }

    @objc func tappedButton(_ sender: UIButton?) {
        print("tapped button")
    }

    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
}

Check in Administration Tools\Services (or type services.msc in the console if you a service named SQL Server (SQLEXPRESS). If you do then it is installed.

From Visual Studio open Server Explorer (menu View\Server Explorer or CTRL + W, L). Right click Data Connections and choose Create New SQL Server Database. After that create tables and stuff...

If you want the Management Studio to manage the server you must download and install it from:

http://www.microsoft.com/downloads/en/details.aspx?FamilyId=C243A5AE-4BD1-4E3D-94B8-5A0F62BF7796&displaylang=en

It appears this has been fixed in MVC4.

You can do this, which worked well for me:

public ActionResult SomeControllerAction()
{
  var jsonResult = Json(veryLargeCollection, JsonRequestBehavior.AllowGet);
  jsonResult.MaxJsonLength = int.MaxValue;
  return jsonResult;
}

Just open file by nano /file_name

Once done, press CTRL+O and then Enter to save. Then press CTRL+X to return.

Here CTRL+O : is CTRL and O for Orange Not 0 Zero

I had the same problem, this is how I fixed it:

I use windows...

Go to

C:\Users\<username>\AppData\Local\GitHub\PortableGit_c2ba306e536fdf878271f7fe636a147ff37326ad\bin

So in my Account I had this

C:\Users\victor\AppData\Local\GitHub\PortableGit_c2ba306e536fdf878271f7fe636a147ff37326ad\bin

Make sure you find the git.exe

Then go to the VCS window(Settings --> Version Control---> Git), and paste the PATH and append git.exe at the end

So you shall have this

C:\Users\<username>\AppData\Local\GitHub\PortableGit_c2ba306e536fdf878271f7fe636a147ff37326ad\bin\git.exe 

Then click test to verify if git is working well.

I'm late but I need to say for those who need an object, using only html, there's a way. In some server side frameworks like PHP you can write the follow code:

<form action="myurl" method="POST" name="myForm">
        <p><label for="first_name">First Name:</label>
        <input type="text" name="name[first]" id="fname"></p>

        <p><label for="last_name">Last Name:</label>
        <input type="text" name="name[last]" id="lname"></p>

        <input value="Submit" type="submit">
    </form>

So, we need setup the name of the input as object[property] for got an object. In the above example, we got a data with the follow JSON:

{
"name": {
  "first": "some data",
  "last": "some data"
 }
}

You can actually just use the Remove overload that takes one parameter:

str = str.Remove(str.Length - 3);

However, if you're trying to avoid hard coding the length, you can use:

str = str.Remove(str.IndexOf(','));

The cause of that problem has to do with system permissions (thanks @ IsaacCisneros for this suggestion). Somehow HTC Wildfire (and maybe the others) need something more from the system than Samsung devices. Simple solution is to run Eclipse as a root, but this is not very comfortable with non-sudo Linux systems like Fedora.

I've found another way of achieving the same goal, which seems to be more user friendly and is lesser security hole then running entire IDE with super user privileges. Mind this is still only a workaround of the problem. System root usage should be minimalized only to administrative tasks, and “adb” was designed to work with normal user account without SUID. Despite of the fact that the proper setting of SUID is quite secure, every single permission increase is a potential system security hole.

1.Setting ownership of the adb binary (owner – root, owner group - user_group):

chown root:user_group adb

2.Setting permissions with SUID:

chmod 4550 adb

This should result something similar to this (ls -llh):

-r-sr-x---. 1 root user_name 1.2M Jan 8 11:42 adb

After that you will be able to run adb as a root, event though you'll be using your normal user account. You can run Eclipse as a normal user and your HTC should be discovered properly.

./adb devices 
List of devices attached 
HT0BPPY15230    device 

There is a built-in function in bytearray that does what you intend.

bytearray.fromhex("de ad be ef 00")

It returns a bytearray and it reads hex strings with or without space separator.

On Android 6+ follow this path: Settings -> Google -> Security -> Verify Apps Uncheck them all! Now you're good to GO!!!

from sys import exit
exit()

As a parameter you can pass an exit code, which will be returned to OS. Default is 0.

You can use TreeMap which will store values in sorted form.

Map <String, String> map = new TreeMap <String, String>();

I have solved it using "force update", pressing Alt+F5 as it is mentioned in the following link.

using FileSaver.js solved my issue thanks for help, below code helped me

'$'

 DownloadClaimForm: function (claim) 
{
 url = baseAddress + "DownLoadFile";
 return  $http.post(baseAddress + "DownLoadFile", claim, {responseType: 'arraybuffer' })
                            .success(function (data) {
                                var file = new Blob([data], { type: 'application/pdf' });
                                saveAs(file, 'Claims.pdf');
                            });


    }

select
  sum(a) as atotal,
  sum(b) as btotal,
  sum(c) as ctotal
from
  yourtable t
where
  t.id in (1, 2, 3)

The other answers are excellent and I just want to provide a straight forward answer to this. Just limiting to jQuery asynchronous calls

All ajax calls (including the $.get or $.post or $.ajax) are asynchronous.

Considering your example

var outerScopeVar;  //line 1
$.post('loldog', function(response) {  //line 2
    outerScopeVar = response;
});
alert(outerScopeVar);  //line 3

The code execution starts from line 1, declares the variable and triggers and asynchronous call on line 2, (i.e., the post request) and it continues its execution from line 3, without waiting for the post request to complete its execution.

Lets say that the post request takes 10 seconds to complete, the value of outerScopeVar will only be set after those 10 seconds.

To try out,

var outerScopeVar; //line 1
$.post('loldog', function(response) {  //line 2, takes 10 seconds to complete
    outerScopeVar = response;
});
alert("Lets wait for some time here! Waiting is fun");  //line 3
alert(outerScopeVar);  //line 4

Now when you execute this, you would get an alert on line 3. Now wait for some time until you are sure the post request has returned some value. Then when you click OK, on the alert box, next alert would print the expected value, because you waited for it.

In real life scenario, the code becomes,

var outerScopeVar;
$.post('loldog', function(response) {
    outerScopeVar = response;
    alert(outerScopeVar);
});

All the code that depends on the asynchronous calls, is moved inside the asynchronous block, or by waiting on the asynchronous calls.

A variable cannot be both null and undefined at the same time. However, the direct answer to your question is:

if (variable != null)

One =, not two.

There are two special clauses in the "abstract equality comparison algorithm" in the JavaScript spec devoted to the case of one operand being null and the other being undefined, and the result is true for == and false for !=. Thus if the value of the variable is undefined, it's not != null, and if it's not null, it's obviously not != null.

Now, the case of an identifier not being defined at all, either as a var or let, as a function parameter, or as a property of the global context is different. A reference to such an identifier is treated as an error at runtime. You could attempt a reference and catch the error:

var isDefined = false;
try {
  (variable);
  isDefined = true;
}
catch (x) {}

I would personally consider that a questionable practice however. For global symbols that may or may be there based on the presence or absence of some other library, or some similar situation, you can test for a window property (in browser JavaScript):

var isJqueryAvailable = window.jQuery != null;

or

var isJqueryAvailable = "jQuery" in window;

I know this post is pretty old, but I just cared to tell anyone who is searching for the same thing that there is a public and official API to do this: get_fields() and get_field()

Usage:

fields = model._meta.get_fields()
my_field = model._meta.get_field('my_field')

https://docs.djangoproject.com/en/1.8/ref/models/meta/

Note that you can escape a json array / dictionary by doing json.dumps twice and json.loads twice:

>>> a = {'x':1}
>>> b = json.dumps(json.dumps(a))
>>> b
'"{\\"x\\": 1}"'
>>> json.loads(json.loads(b))
{u'x': 1}

If you don't know how many columns you are going to have, the declaration

table-layout: fixed

along with not setting any column widths, would imply that browsers divide the total width evenly - no matter what.

That can also be the problem with this approach, if you use this, you should also consider how overflow is to be handled.

Use minipage environment. Here is an example:

\begin{minipage}{6cm}
\begin{tabular}{|l|c|c|}
    \hline
    A & 1 & 2 \footnote{This is a footnote.} \\
    \hline
    B & 2 & 1 \\
    \hline
    C & 3 & 3 \\
    \hline
\end{tabular}
\end{minipage}

HAVING operates on aggregates. Since COUNT is an aggregate function, you can't use it in a WHERE clause.

Here's some reading from MSDN on aggregate functions.

Here is the JSONP I wrote to share with everyone:

the page to send req
http://c64.tw/r20/eqDiv/fr64.html

please save the srec below to .html youself
c64.tw/r20/eqDiv/src/fr64.txt
the page to resp, please save the srec below to .jsp youself
c64.tw/r20/eqDiv/src/doFr64.txt

or embedded the code in your page:

function callbackForJsonp(resp) {

var elemDivResp = $("#idForDivResp");
elemDivResp.empty();

try {

    elemDivResp.html($("#idForF1").val() + " + " + $("#idForF2").val() + "<br/>");
    elemDivResp.append(" = " + resp.ans + "<br/>");
    elemDivResp.append(" = " + resp.ans2 + "<br/>");

} catch (e) {

    alert("callbackForJsonp=" + e);

}

}

$(document).ready(function() {

var testUrl = "http://c64.tw/r20/eqDiv/doFr64.jsp?callback=?";

$(document.body).prepend("post to " + testUrl + "<br/><br/>");

$("#idForBtnToGo").click(function() {

    $.ajax({

        url : testUrl,
        type : "POST",

        data : {
            f1 : $("#idForF1").val(),
            f2 : $("#idForF2").val(),
            op : "add"
        },

        dataType : "jsonp",
        crossDomain : true,
        //jsonpCallback : "callbackForJsonp",
        success : callbackForJsonp,

        //success : function(resp) {

        //console.log("Yes, you success");
        //callbackForJsonp(resp);

        //},

        error : function(XMLHttpRequest, status, err) {

            console.log(XMLHttpRequest.status + "\n" + err);
            //alert(XMLHttpRequest.status + "\n" + err);

        }

    });

});

});

It's not a good idea to edit mysql database directly.

I prefer the following steps:

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY ''; 
mysql> flush privileges;

HTML

<input type="submit" name="submit" value="Send" id="submit" />

CSS

#submit {
 color: #fff;
 font-size: 0;
 width: 135px;
 height: 60px;
 border: none;
 margin: 0;
 padding: 0;
 background: #0c0 url(image) 0 0 no-repeat; 
}

There is a well-known instance of this in the Git repository itself, which is collectively known in the Git community as "the coolest merge ever" (after the subject line Linus Torvalds used in the e-mail to the Git mailinglist which describes this merge). In this case, the gitk Git GUI which now is part of Git proper, actually used to be a separate project. Linus managed to merge that repository into the Git repository in a way that

• it appears in the Git repository as if it had always been developed as part of Git,
• all the history is kept intact and
• it can still be developed independently in its old repository, with changes simply being git pulled.

The e-mail contains the steps needed to reproduce, but it is not for the faint of heart: first, Linus wrote Git, so he probably knows a bit more about it than you or me, and second, this was almost 5 years ago and Git has improved considerably since then, so maybe it is now much easier.

In particular, I guess nowadays one would use a gitk submodule, in that specific case.

Here's a function that is also based on cloneNode, but with an option to clone only the parent node and move all the children (to preserve their event listeners):

function recreateNode(el, withChildren) {
  if (withChildren) {
    el.parentNode.replaceChild(el.cloneNode(true), el);
  }
  else {
    var newEl = el.cloneNode(false);
    while (el.hasChildNodes()) newEl.appendChild(el.firstChild);
    el.parentNode.replaceChild(newEl, el);
  }
}

Remove event listeners on one element:

recreateNode(document.getElementById("btn"));

Remove event listeners on an element and all of its children:

recreateNode(document.getElementById("list"), true);

If you need to keep the object itself and therefore can't use cloneNode, then you have to wrap the addEventListener function and track the listener list by yourself, like in this answer.

Based on Ramon's answer I run into an error. The problem where spaces in the JSON I tried to write I got it fixed by changing the task in the playbook to look like:

- copy:
    content: "{{ your_json_feed }}"
    dest: "/path/to/destination/file"

As of now I am not sure why this was needed. My best guess is that it had something to do with how variables are replaced in Ansible and the resulting file is parsed.

Ahh. Because I missed the point of you initial post, here is an example which also ITERATES. The first example did not. In this case, I retreive an ADODB recordset, then load the data into a collection, which is returned by the function to client code:

EDIT: Not sure what I screwed up in pasting the code, but the formatting is a little screwball. Sorry!

Public Function StatesCollection() As Collection
Dim cn As ADODB.Connection
Dim cmd As ADODB.Command
Dim rs As ADODB.Recordset
Dim colReturn As New Collection

Set colReturn = New Collection

Dim SQL As String
SQL = _
    "SELECT tblState.State, tblState.StateName " & _
    "FROM tblState"

Set cn = New ADODB.Connection
Set cmd = New ADODB.Command

With cn
    .Provider = DataConnection.MyADOProvider
    .ConnectionString = DataConnection.MyADOConnectionString
    .Open
End With

With cmd
    .CommandText = SQL
    .ActiveConnection = cn
End With

Set rs = cmd.Execute

With rs
    If Not .EOF Then
    Do Until .EOF
        colReturn.Add Nz(!State, "")
        .MoveNext
    Loop
    End If
    .Close
End With
cn.Close

Set rs = Nothing
Set cn = Nothing

Set StatesCollection = colReturn

End Function

There are already multiple answers using str.replace() (which is fair enough for this question) and regex but you can use combination of str.split() and join() together which is faster than str.replace() and regex.

Below is working example:

var text = "this is some sample text that i want to replace";_x000D_
_x000D_
console.log(text.split("want").join("dont want"));

I think the answer above needs some update:

I was trying to create a dynamic directory to store my upstream build artifacts so I wanted to pass my upstream job build number to downstream job I tried the above steps but couldn't make it work. Here is how it worked:

1. I copied the artifacts from my current job using copy artifacts plugin.
2. In post build action of upstream job I added the variable like "SOURCE_BUILD_NUMBER=${BUILD_NUMBER}" and configured it to trigger the downstream job.
3. Everything worked except that my downstream job was not able to get $SOURCE_BUILD_NUMBER to create the directory.
4. So I found out that to use this variable I have to define the same variable in down stream job as a parameter variable like in this picture below:

This is because the new version of jenkins require's you to define the variable in the downstream job as well. I hope it's helpful.

<script>
function subadd(){
subadd= parseFloat(document.forms[0][0].value) + parseFloat(document.forms[0][1].value) 
window.alert(subadd)  
}
</script>

<body>
<form>
<input type="text" >+
<input type="text" >
<input type="button" value="add" onclick="subadd()">
</form>
</body>

On Windows : !pip install opencv-python

I came across the same problem using a Wordpress page and plugin. This didn't work for the iframe plugin

[iframe src="https://itunes.apple.com/gb/app/witch-hunt/id896152730#?platform=iphone"]

but this does:

[iframe src="https://itunes.apple.com/gb/app/witch-hunt/id896152730"  width="100%" height="480" ]

As you see, I just left off the #?platform=iphone part in the end.

An abstract function is "just" a signature, without an implementation. It is used in an interface to declare how the class can be used. It must be implemented in one of the derived classes.

Virtual function (method actually), is a function you declare as well, and should implemented in one of the inheritance hierarchy classes.

The inherited instances of such class, inherit the implementation as well, unless you implement it, in a lower hierarchy class.

OS_ACTIVITY_MODE = disable

This will also disable the ability to debug in real devices (no console output from real devices from then on).

$_ is a variable created by the system usually inside block expressions that are referenced by cmdlets that are used with pipe such as Where-Object and ForEach-Object.

But it can be used also in other types of expressions, for example with Select-Object combined with expression properties. Get-ChildItem | Select-Object @{Name="Name";Expression={$_.Name}}. In this case the $_ represents the item being piped but multiple expressions can exist.

It can also be referenced by custom parameter validation, where a script block is used to validate a value. In this case the $_ represents the parameter value as received from the invocation.

The closest analogy to c# and java is the lamda expression. If you break down powershell to basics then everything is a script block including a script file a, functions and cmdlets. You can define your own parameters but in some occasions one is created by the system for you that represents the input item to process/evaluate. In those situations the automatic variable is $_.

The same way you declare any other variable, just use the bit type:

DECLARE @MyVar bit
Set @MyVar = 1  /* True */
Set @MyVar = 0  /* False */

SELECT * FROM [MyTable] WHERE MyBitColumn = @MyVar

try
{
    int temp=Convert.ToInt32(TextBox1.Text);
}
catch(Exception h)
{
    MessageBox.Show("Please provide number only");
}

You could try this code:

private float GetBrightestColor(float r, float g, float b) { 
    if (r > g && r > b) {
        return r;
    } else if (g > r && g > b) { 
        return g;
    } else if (b > r && b > g) { 
        return b;
    }
}

You might want to check out this tutorial: http://www.webdesignerwall.com/tutorials/css-decorative-gallery/

In it the writer uses an empty span element to add an overlaying image. You can use jQuery to inject said span elements, if you'd like to keep your code as clean as possible. An example is also given in the aforementioned article.

Hope this helps!

-Dave

enclose each argument with backticks( ` )

example:

<button onclick="updateById(`id`, `name`)">update</button>

function updateById(id, name) {
   alert(id + name );
   ...
}

I think the below rules are recommended for a default wordpress site:

• For folders inside wp-content, set 0755 permissions:

  chmod -R 0755 plugins

  chmod -R 0755 uploads

  chmod -R 0755 upgrade

• Let apache user be the owner for the above directories of wp-content:

  chown apache uploads

  chown apache upgrade

  chown apache plugins

Arrays:

{{#each array}}
    {{@index}}: {{this}}
{{/each}}

If you have arrays of objects... you can iterate through the children:

{{#each array}}
    //each this = { key: value, key: value, ...}
    {{#each this}}
        //each key=@key and value=this of child object 
        {{@key}}: {{this}}
        //Or get index number of parent array looping
        {{@../index}}
    {{/each}}
{{/each}}

Objects:

{{#each object}}
    {{@key}}: {{this}}
{{/each}} 

If you have nested objects you can access the key of parent object with {{@../key}}

I had this problem when I installed MySQL 8.0.15 with the community installer. The my.ini file that came with the installer did not work correctly after it had been edited. I did a full manual install by downloading that zip folder. I was able to create my own my.ini file containing only the parameters that I was concerned about and it worked.

1. download zip file from MySQL website
2. unpack the folder into C:\program files\MySQL\MySQL8.0
3. within the MySQL8.0 folder that you unpacked the zip folder into, create a text file and save it as my.ini

4. include the parameters in that my.ini file that you are concerned about. so something like this(just ensure that there is already a folder created for the datadir or else initialization won't work):

   [mysqld]
   basedire=C:\program files\MySQL\MySQL8.0
   datadir=D:\MySQL\Data
   ....continue with whatever parameters you want to include
   

5. initialize the data directory by running these two commands in the command prompt:

   cd C:\program files\MySQL\MySQL8.0\bin
   mysqld --default-file=C:\program files\MySQL\MySQL8.0\my.ini --initialize
   

6. install the MySQL server as a service by running these two commands:

   cd C:\program files\MySQL\MySQL8.0\bin
   mysqld --install --default-file=C:\program files\MySQL\MySQL8.0\my.ini
   

7. finally, start the server for the first time by running these two commands:

   cd C:\program files\MySQL\MySQL8.0\bin
   mysqld --console
   

This should work

function updatePostID(val)
{
    document.getElementById('PostID').value = val;

    //and probably call document.forms[0].submit();
}

Then have a hidden field or other control for the PostID

@Html.Hidden("PostID", Model.addcomment.PostID)
//OR
@Html.HiddenFor(model => model.addcomment.PostID)

Whenever I start thinking about CORS, my intuition about which site hosts the headers is incorrect, just as you described in your question. For me, it helps to think about the purpose of the same origin policy.

The purpose of the same origin policy is to protect you from malicious JavaScript on siteA.com accessing private information you've chosen to share only with siteB.com. Without the same origin policy, JavaScript written by the authors of siteA.com could make your browser make requests to siteB.com, using your authentication cookies for siteB.com. In this way, siteA.com could steal the secret information you share with siteB.com.

Sometimes you need to work cross domain, which is where CORS comes in. CORS relaxes the same origin policy for domainB.com, using the Access-Control-Allow-Origin header to list other domains (domainA.com) that are trusted to run JavaScript that can interact with domainA.com.

To understand which domain should serve the CORS headers, consider this. You visit malicious.com, which contains some JavaScript that tries to make a cross domain request to mybank.com. It should be up to mybank.com, not malicious.com, to decide whether or not it sets CORS headers that relax the same origin policy allowing the JavaScript from malicious.com to interact with it. If malicous.com could set its own CORS headers allowing its own JavaScript access to mybank.com, this would completely nullify the same origin policy.

I think the reason for my bad intuition is the point of view I have when developing a site. It's my site, with all my JavaScript, therefore it isn't doing anything malicious and it should be up to me to specify which other sites my JavaScript can interact with. When in fact I should be thinking which other sites JavaScript are trying to interact with my site and should I use CORS to allow them?

You can use Iterator<String> to iterate the elements of the ArrayList<String>:

ArrayList<String> list = new ArrayList<>();
String[] array = new String[list.size()];
int i = 0;
for (Iterator<String> iterator = list.iterator(); iterator.hasNext(); i++) {
    array[i] = iterator.next();
}

Now you can retrive elements from String[] using any Loop.

You can use SimpleDateFormat

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date d = sdf.parse("21/12/2012");

But I don't know whether it should be considered more right than to use Calendar ...

Depending on what browsers/devices you are looking to support, or what you are prepared to put up with for non-compliant browsers you may want to check out the <summary> and <detail> tags. They are for exactly this purpose. No css is required at all as the collapsing and showing are part of the tags definition/formatting.

I've made an example here:

<details>
<summary>This is what you want to show before expanding</summary>
<p>This is where you put the details that are shown once expanded</p>
</details>

Browser support varies. Try in webkit for best results. Other browsers may default to showing all the solutions. You can perhaps fallback to the hide/show method described above.

You can try something like this:

Inside customview constructor:

mContext = context;

Next inside customview you can call:

((MainActivity) mContext).updateText( text );

Inside MainAcivity define:

public void updateText(final String text) {

     TextView txtView = (TextView) findViewById(R.id.text);
     txtView.setText(text);
}

It works for me.

Following may come in handy:

• ⏩ ⏩
• ⏪ ⏪
• ⏫ ⓫
• ⏬ ⏬
• ⏭ ⏭
• ⏮ ⏮
• ⏯ ⏯
• ⏴ ⏴
• ⏵ ⏵
• ⏶ ⏶
• ⏷ ⏷
• ⏸ ⏸
• ⏹ ⏹
• ⏺ ⏺

NOTE: apparently, these characters aren't very well supported in popular fonts, so if you plan to use it on the web, be sure to pick a webfont that supports these.

Visit https://youtu.be/TQ32vqvMR80 OR

For example if parent contrainer has height: 200, then

Container(
            decoration: BoxDecoration(
              image: DecorationImage(
                image: NetworkImage('url'),
                fit: BoxFit.cover,
              ),
            ),
          ),

Maximum value fo int is 2147483647, so 2055786000+93552000 > 2147483647 and it caused overflow

ArrayList<String[]> action = new ArrayList<String[]>();

Don't need String[2];

I worked on both Travis and Jenkins: I will list down some of the features of both:

Setup CI for a project

Travis comes in first place. It's very easy to setup. Takes less than a minute to setup with GitHub.

1. Login to GitHub
2. Create Web Hook for Travis.
3. Return to Travis, and login with your GitHub credentials
4. Sync your GitHub repo and enable Push and Pull requests.

Jenkins:

1. Create an Environment (Master Jenkins)
2. Create web hooks
3. Configure each job (takes time compare to Travis)

Re-running builds

Travis: Anyone with write access on GitHub can re-run the build by clicking on `restart build

Jenkins: Re-run builds based on a phrase. You provide phrase text in PR/commit description, like reverify jenkins.

Controlling environment

Travis: Travis provides hosted environment. It installs required software for every build. It’s a time-consuming process.

Jenkins: One-time setup. Installs all required software on a node/slave machine, and then builds/tests on a pre-installed environment.

Build Logs:

Travis: Supports build logs to place in Amazon S3.

Jenkins: Easy to setup with build artifacts plugin.

https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML

var div = document.getElementsByTagName('div');
for (var i=0; i<div.length; i++) {
    div[i].insertAdjacentHTML('afterend', div[i].innerHTML);
    document.body.removeChild(div[i]);
}