Programs & Examples On #Phpthumb

How about something like this:

<script>
function changeQueryVariable(keyString, replaceString) {
    var query = window.location.search.substring(1);
    var vars = query.split("&");
    var replaced = false;
    for (var i = 0; i < vars.length; i++) {
        var pair = vars[i].split("=");
        if (pair[0] == keyString) {
            vars[i] = pair[0] + "="+ replaceString;
            replaced = true;
        }
    }
    if (!replaced) vars.push(keyString + "=" + replaceString);
    return vars.join("&");
}
</script>

When we do not explicitly define a constructor for a class, then java creates a default constructor for the class. It is essentially a non-parameterized constructor, i.e. it doesn't accept any arguments.

The default constructor's job is to call the super class constructor and initialize all instance variables. If the super class constructor is not present then it automatically initializes the instance variables to zero. So, that serves the purpose of using constructor, which is to initialize the internal state of an object so that the code creating an instance will have a fully initialized, usable object.

Once we define our own constructor for the class, the default constructor is no longer used. So, neither of them is actually a default constructor.

On modern Windows this driver isn't available by default anymore, but you can download as Microsoft Access Database Engine 2010 Redistributable on the MS site. If your app is 32 bits be sure to download and install the 32 bits variant because to my knowledge the 32 and 64 bit variant cannot coexist.

Depending on how your app locates its db driver, that might be all that's needed. However, if you use an UDL file there's one extra step - you need to edit that file. Unfortunately, on a 64bits machine the wizard used to edit UDL files is 64 bits by default, it won't see the JET driver and just slap whatever driver it finds first in the UDL file. There are 2 ways to solve this issue:

1. start the 32 bits UDL wizard like this: C:\Windows\syswow64\rundll32.exe "C:\Program Files (x86)\Common Files\System\Ole DB\oledb32.dll",OpenDSLFile C:\path\to\your.udl. Note that I could use this technique on a Win7 64 Pro, but it didn't work on a Server 2008R2 (could be my mistake, just mentioning)
2. open the UDL file in Notepad or another text editor, it should more or less have this format:

[oledb] ; Everything after this line is an OLE DB initstring Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Path\To\The\database.mdb;Persist Security Info=False

That should allow your app to start correctly.

Your dataframe has four columns like so df[,c(1,2,3,4)]. Note the first comma means keep all the rows, and the 1,2,3,4 refers to the columns.

To change the order as in the above question do df2[,c(1,3,2,4)]

If you want to output this file as a csv, do write.csv(df2, file="somedf.csv")

All these answers are partially wrong.

Microsoft has clarified that Community is for ANY USE as long as your revenue is under $1 Million US dollars. That is literally the only difference between Pro and Community. Corporate or free or not, irrelevant.

Even the lack of TFS support is not true. I can verify it is present and works perfectly.

EDIT: Here is an MSDN post regarding the $1M limit: MSDN (hint: it's in the VS 2017 license)

EDIT: Even over the revenue limit, open source is still free.

Basically, there are two important differences between + and the concat method.

1. If you are using the concat method then you would only be able to concatenate strings while in case of the + operator, you can also concatenate the string with any data type.

   For Example:

   String s = 10 + "Hello";
   

   In this case, the output should be 10Hello.

   String s = "I";
   String s1 = s.concat("am").concat("good").concat("boy");
   System.out.println(s1);
   

   In the above case you have to provide two strings mandatory.

2. The second and main difference between + and concat is that:

   Case 1: Suppose I concat the same strings with concat operator in this way

   String s="I";
   String s1=s.concat("am").concat("good").concat("boy");
   System.out.println(s1);
   

   In this case total number of objects created in the pool are 7 like this:

   I
   am
   good
   boy
   Iam
   Iamgood
   Iamgoodboy
   

   Case 2:

   Now I am going to concatinate the same strings via + operator

   String s="I"+"am"+"good"+"boy";
   System.out.println(s);
   

   In the above case total number of objects created are only 5.

   Actually when we concatinate the strings via + operator then it maintains a StringBuffer class to perform the same task as follows:-

   StringBuffer sb = new StringBuffer("I");
   sb.append("am");
   sb.append("good");
   sb.append("boy");
   System.out.println(sb);
   

   In this way it will create only five objects.

So guys these are the basic differences between + and the concat method. Enjoy :)

It depends how you wish the function to work.

If all you wish to do is test for the word 'true' inside the string, and define any string (or nonstring) that doesn't have it as false, the easiest way is probably this:

function parseBoolean(str) {
  return /true/i.test(str);
}

If you wish to assure that the entire string is the word true you could do this:

function parseBoolean(str) {
  return /^true$/i.test(str);
}

//Written by K@stackoverflow
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        ArrayList<Person> people = new ArrayList<Person>();
        people.add(new Person("Subash Adhikari", 28));
        people.add(new Person("K", 28));
        people.add(new Person("StackOverflow", 4));
        people.add(new Person("Subash Adhikari", 28));

        for (int i = 0; i < people.size() - 1; i++) {
            for (int y = i + 1; y <= people.size() - 1; y++) {
                boolean check = people.get(i).equals(people.get(y));

                System.out.println("-- " + people.get(i).getName() + " - VS - " + people.get(y).getName());
                System.out.println(check);
            }
        }
    }
}

//written by K@stackoverflow
public class Person {
    private String name;
    private int age;

    public Person(String name, int age){
        this.name = name;
        this.age = age;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }

        if (obj.getClass() != this.getClass()) {
            return false;
        }

        final Person other = (Person) obj;
        if ((this.name == null) ? (other.name != null) : !this.name.equals(other.name)) {
            return false;
        }

        if (this.age != other.age) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int hash = 3;
        hash = 53 * hash + (this.name != null ? this.name.hashCode() : 0);
        hash = 53 * hash + this.age;
        return hash;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

Output:

run:

-- Subash Adhikari - VS - K false

-- Subash Adhikari - VS - StackOverflow false

-- Subash Adhikari - VS - Subash Adhikari true

-- K - VS - StackOverflow false

-- K - VS - Subash Adhikari false

-- StackOverflow - VS - Subash Adhikari false

-- BUILD SUCCESSFUL (total time: 0 seconds)

Just try with:

var check = moment(n.entry.date_entered, 'YYYY/MM/DD');

var month = check.format('M');
var day   = check.format('D');
var year  = check.format('YYYY');

JSFiddle

1. I added in mysql config file in section [mysqld]

   default_time_zone='+03:00'
   

2. And restart mysql server:

   sudo service mysql restart
   

Where +03:00 my UTC time zone.

Path to config file on my os ubuntu 16.04:

/etc/mysql/mysql.conf.d/mysqld.cnf

WARNING: IF YOUR TIME ZONE HAVE SUMMER AND WINTER TIME. YOU MUST CHANGE UTC IN CONFIG IF CHANGE TIME. TWICE IN YEAR(USUALLY) OR SET CRONTAB WITH SUDO.

My url jdbc connection:

"jdbc:mysql://localhost/java"

I've tested it using the following code:

$emails = ['[email protected]', '[email protected]','[email protected]'];

Mail::send('emails.welcome', [], function($message) use ($emails)
{    
    $message->to($emails)->subject('This is test e-mail');    
});
var_dump( Mail:: failures());
exit;

Result - empty array for failures.

But of course you need to configure your app/config/mail.php properly. So first make sure you can send e-mail just to one user and then test your code with many users.

Moreover using this simple code none of my e-mails were delivered to free mail accounts, I got only emails to inboxes that I have on my paid hosting accounts, so probably they were caught by some filters (it's maybe simple topic/content issue but I mentioned it just in case you haven't received some of e-mails) .

Rune Kaagaard provided a great and compact solution that worked for me, I expanded on it a little:

def urljoin(*args):
    trailing_slash = '/' if args[-1].endswith('/') else ''
    return "/".join(map(lambda x: str(x).strip('/'), args)) + trailing_slash

This allows all arguments to be joined regardless of trailing and ending slashes while preserving the last slash if present.

Don't define variables in headers. Put declarations in header and definitions in one of the .c files.

In config.h

extern const char *names[];

In some .c file:

const char *names[] =
    {
        "brian", "stefan", "steve"
    };

If you put a definition of a global variable in a header file, then this definition will go to every .c file that includes this header, and you will get multiple definition error because a varible may be declared multiple times but can be defined only once.

You can compare two String by using this.

Collections.sort(contactsList, new Comparator<ContactsData>() {

                    @Override
                    public int compare(ContactsData lhs, ContactsData rhs) {

                        char l = Character.toUpperCase(lhs.name.charAt(0));

                        if (l < 'A' || l > 'Z')

                            l += 'Z';

                        char r = Character.toUpperCase(rhs.name.charAt(0));

                        if (r < 'A' || r > 'Z')

                            r += 'Z';

                        String s1 = l + lhs.name.substring(1);

                        String s2 = r + rhs.name.substring(1);

                        return s1.compareTo(s2);

                    }

                });

And Now make a ContactData Class.

public class ContactsData {

public String name;
public String id;
public String email;
public String avatar; 
public String connection_type;
public String thumb;
public String small;
public String first_name;
public String last_name;
public String no_of_user;
public int grpIndex;

public ContactsData(String name, String id, String email, String avatar, String connection_type)
{
    this.name = name;
    this.id = id;
    this.email = email;
    this.avatar = avatar;
    this.connection_type = connection_type;

}
}

Here contactsList is :

public static ArrayList<ContactsData> contactsList = new ArrayList<ContactsData>();

for Arabic language

 var table = $('#my_table')
                .DataTable({
                 "columns":{//......}
                 "language": 
                        {
                            "sProcessing": "???? ???????...",
                            "sLengthMenu": "???? _MENU_ ??????",
                            "sZeroRecords": "?? ???? ??? ??? ?????",
                            "sInfo": "????? _START_ ??? _END_ ?? ??? _TOTAL_ ????",
                            "sInfoEmpty": "???? 0 ??? 0 ?? ??? 0 ???",
                            "sInfoFiltered": "(?????? ?? ????? _MAX_ ?????)",
                            "sInfoPostFix": "",
                            "sSearch": "????:",
                            "sUrl": "",
                            "oPaginate": {
                                "sFirst": "?????",
                                "sPrevious": "??????",
                                "sNext": "??????",
                                "sLast": "??????"
                            }
                        }
                });

Ref: https://datatables.net/plug-ins/i18n/Arabic

Author: Ossama Khayat

Try using this :

function checkValue(){_x000D_
  var value = $('#doc_title').val();_x000D_
  if (value.length > 0) {_x000D_
        $('#doc_title').val("");_x000D_
        $('#doc_title').focus();  // To focus the input _x000D_
    }_x000D_
    else{_x000D_
    //do something_x000D_
    }_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<body>_x000D_
<input type="text" id="doc_title" value="Sample text"/>_x000D_
<button onclick="checkValue()">Check Value</button>_x000D_
</body>

Short version which you can pass to kill command:

lsof -i:80 -t

You're getting errors 'table liam does not exist' because the table's name is Liam which is not the same as liam. MySQL table names are case sensitive.

string firstdayofyear = new DateTime(DateTime.Now.Year, 1, 1).ToString("MM-dd-yyyy");
string lastdayofyear = new DateTime(DateTime.Now.Year, 12, 31).ToString("MM-dd-yyyy");
string firstdayofmonth = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1).ToString("MM-dd-yyyy");
string lastdayofmonth = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1).AddMonths(1).AddDays(-1).ToString("MM-dd-yyyy");

You may have inadvertently used a private key for a public key.

Edit: Generally try to avoid doing the below except as a last ditch effort to avoid deadlocks. Read the first comment from Stephen Cleary.

Quick fix from here. Instead of writing:

Task tsk = AsyncOperation();
tsk.Wait();

Try:

Task.Run(() => AsyncOperation()).Wait();

Or if you need a result:

var result = Task.Run(() => AsyncOperation()).Result;

From the source (edited to match the above example):

AsyncOperation will now be invoked on the ThreadPool, where there won’t be a SynchronizationContext, and the continuations used inside of AsyncOperation won’t be forced back to the invoking thread.

For me this looks like a useable option since I do not have the option of making it async all the way (which I would prefer).

From the source:

Ensure that the await in the FooAsync method doesn’t find a context to marshal back to. The simplest way to do that is to invoke the asynchronous work from the ThreadPool, such as by wrapping the invocation in a Task.Run, e.g.

int Sync() { return Task.Run(() => Library.FooAsync()).Result; }

FooAsync will now be invoked on the ThreadPool, where there won’t be a SynchronizationContext, and the continuations used inside of FooAsync won’t be forced back to the thread that’s invoking Sync().

In addition to what Kiran's answer suggests, make sure this is set correctly:

There is an option to in SSIS to save passwords(to access DB or anyother stuff), the default setting is "EncryptSensitiveWithUserKey"... You need to change this.

Package Proprties Window > ProtectionLevel -- Change that to EncryptSensitiveWithPassword PackagePassword -- enter password-> somepassword

You can use Apache commons-lang

StringUtils.isEmpty(String str) - Checks if a String is empty ("") or null.

or

StringUtils.isBlank(String str) - Checks if a String is whitespace, empty ("") or null.

the latter considers a String which consists of spaces or special characters eg " " empty too. See java.lang.Character.isWhitespace API

Use a stack to track your nodes

Stack<Node> s;

s.prepend(tree.head);

while(!s.empty) {
    Node n = s.poll_front // gets first node

    // do something with q?

    for each child of n: s.prepend(child)

}

I face the same problem and changing

 $cfg['Servers'][$i]['host'] = 'localhost';

to

 $cfg['Servers'][$i]['host'] = '127.0.0.1';

Solved this issue.

DEPRECATED - this part is outdated so please don't use it.

You can also try this code, if you have for example later added dynamic forms. For example you loaded a window async with ajax and want to submit this form.

$('#cpa-form').live('submit' ,function(e){
    e.preventDefault();      
    // do something
});

UPDATE - you should use the jQuery on() method an try to listen to the document DOM if you want to handle dynamically added content.

Case 1, static version: If you have only a few listeners and your form to handle is hardcoded, then you can listen directly on "document level". I wouldn't use the listeners on document level but I would try to go deeper in the doom tree because it could lead to performance issues (depends on the size of your website and your content)

$('form#formToHandle').on('submit'... 

OR

$('form#formToHandle').submit(function(e) {
    e.preventDefault();      
    // do something
});

Case 2, dynamic version: If you already listen to the document in your code, then this way would be good for you. This will also work for code that was added later via DOM or dynamic with AJAX.

$(document).on('submit','form#formToHandle',function(){
   // do something like e.preventDefault(); 
});

OR

$(document).ready(function() {
    console.log( "Ready, Document loaded!" );

    // all your other code listening to the document to load 

    $("#formToHandle").on("submit", function(){
        // do something           
    })
});

OR

$(function() { // <- this is shorthand version
   console.log( "Ready, Document loaded!" );

    // all your other code listening to the document to load 

    $("#formToHandle").on("submit", function(){
        // do something           
    })
});

An another way is simply :

if($test){
    echo "Yes 1";
}
if(!is_null($test)){
    echo "Yes 2";
}

$test = "hello";

if($test){
    echo "Yes 3";
}

Will return :

"Yes 3"

The best way is to use isset(), otherwise you can have an error like "undefined $test".

You can do it like this :

if( isset($test) && ($test!==null) )

You'll not have any error because the first condition isn't accepted.

FYI you dont have string datatype in C. Use array of characters to store the value and manipulate it. Change your variable c into an array of characters and use it inside a loop to get values.

char c[10];
int i=0;
while(i!=10)
{
    c[i]=fgetc(fp);
    i++;
}

The other way to do is to use pointers and allocate memory dynamically and assign values.

I found this official tool from facebook developer page, this page will you following information related to access token - App ID, Type, App-Scoped,User last installed this app via, Issued, Expires, Data Access Expires, Valid, Origin, Scopes. Just need access token.

https://developers.facebook.com/tools/debug/accesstoken/

npm install --save react react-dom react-scripts

Above command worked for me.

You can try beardless (it's inspired by weld/plates):

For example:

{ post:
  { title: "Next generation templating: Start shaving!"
  , text: "TL;DR You should really check out beardless!"
  , comments:
    [ {text: "Hey cool!"}
    , {text: "Really gotta check that out..."}  ]
  }
}

Your template:

<h1 data-template="post.title"></h1>
<p data-template="post.text"></p>
<div>
  <div data-template="post.comments" class="comment">
    <p data-template="post.comments.text"></p>
  </div>
</div>

Output:

<h1>Next generation templating: Start shaving!</h1>
<p>TL;DR You should really check out beardless!</p>
<div>
  <div class="comment">
    <p>Hey cool!</p>
  </div>
  <div class="comment">
    <p>Really gotta check that out...</p>
  </div>
</div>

General Email format (RE) which include also domain like co.in, co.uk, com, outlook.com etc.

And rule says that :

• Uppercase and lowercase English letters (a-z, A-Z)
• Digits 0 to 9
• Characters ! # $ % & ' * + - / = ? ^ _ ` { | } ~ Character.

• (dot, period, full stop) provided that it is not the first or last character, and provided also that it does not appear two or more times consecutively.

  [a-zA-Z0-9]+[._a-zA-Z0-9!#$%&'*+-/=?^_`{|}~]*[a-zA-Z]*@[a-zA-Z0-9]{2,8}.[a-zA-Z.]{2,6}
  

if working with IDLE installed version of Python

>>>def any(a,b):
...    print(a+b)
...
>>>any(1,2)
3

adb shell
am start -n com.package.name/com.package.name.ActivityName

Or you can use this directly:

adb shell am start -n com.package.name/com.package.name.ActivityName

You can also specify actions to be filter by your intent-filters:

am start -a com.example.ACTION_NAME -n com.package.name/com.package.name.ActivityName

• We require 2 screenshots.
• Use: Displayed on the details page for your application in Google Play.
• You may upload up to 8 screenshots each for phone, 7” tablet and 10” tablet.
• Specs: Minimum dimension: 320 pixels. Maximum dimension: 3840 pixels. The maximum dimension of your screenshot cannot be more than twice as long as the minimum dimension. You may use 24 bit PNG or JPEG image (no alpha). Full bleed, no border in art.
• We recommend adding screenshots of your app running on a 7" and 10" tablet. Go to ‘Store listing’ page in your Developer Console to add tablet apps screenshots.

https://support.google.com/googleplay/android-developer/answer/1078870?hl=en&ref_topic=2897459

You can try Cactoos:

new LengthOf(new TeeInput(array, new File("a.txt"))).value();

More details: http://www.yegor256.com/2017/06/22/object-oriented-input-output-in-cactoos.html

If you want to use it in JavaScript then you can use

str.replace("SP","\\SP");

But in Java

str.replaceAll("SP","\\SP");

will work perfectly.

SP: special character

Otherwise you can use Apache's EscapeUtil. It will solve your problem.

Creating and using the key is the way to go. The usage is free until your application reaches 25.000 calls per day on 90 consecutive days.

BTW.: In the google Developer documentation it says you shall add the api key as option {key:yourKey} when calling the API to create new instances. This however doesn't shush the console warning. You have to add the key as a parameter when including the api.

<script src="https://maps.googleapis.com/maps/api/js?key=yourKEYhere"></script>

Get the key here: GoogleApiKey Generation site

I used http://jafty.com/blog/enable-mod_rewrite-on-apache-ec2-linux-server/ to determine that after upgrading to PHP 5.6 (from 4.9.13) it also update the http (Apache) and I needed to edit the /etc/httpd/conf/httpd.conf file, I quote...

Basically, you’ll be adding All insted of None to AllowOverride, you do not want to edit the main directory configuration, you want to edit the one that looks like this:

<Directory “/var/www/html”>

Not:

<Directory />

Then restart Apache with:

sudo service httpd restart

NOTE - in my tiredness I did change a different Directory element and it made no difference, so ensure you do it for /var/www/html

The article also explains how to check mod-rewrite is enabled.

Checkout Shield UI's Date Picker for MVC. A powerful component that you can integrate with a few lines like:

@(Html.ShieldDatePicker()
    .Name("datepicker"))

string source = "/once/upon/a/time/";
int count = 0, n = 0;
while ((n = source.IndexOf('/', n) + 1) != 0) count++;

A variation on Richard Watson's answer, slightly faster with improving efficiency the more times the char occurs in the string, and less code!

Though I must say, without extensively testing every scenario, I did see a very significant speed improvement by using:

int count = 0;
for (int n = 0; n < source.Length; n++) if (source[n] == '/') count++;

in your css :

 #txtComputer {
      font-size: 24px;
 }

You can style an input entirely (background, color, etc.) and even use the hover event.

Use asymptote instead!

This is what it can look like:

https://asymptote.sourceforge.io/gallery/3Dgraphs/helix.html

This is the code: https://asymptote.sourceforge.io/gallery/3Dgraphs/helix.asy

Asymptote can also read in data files.

And the full gallery: https://asymptote.sourceforge.io/gallery/index.html

To use asymptote from within Python:

https://ctan.org/tex-archive/graphics/asymptote/base/asymptote.py

Just use

If @searchType is null means 'return the whole table' then use

WHERE p.[Type] = @SearchType OR @SearchType is NULL

If @searchType is an empty string means 'return the whole table' then use

WHERE p.[Type] = @SearchType OR @SearchType = ''

If @searchType is null or an empty string means 'return the whole table' then use

WHERE p.[Type] = @SearchType OR Coalesce(@SearchType,'') = ''

I mix all of them and writing one small program. It is reading from the xml file and printing out. Just Instead of xzy give your file path.

    public static void main(String[] args) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(false);
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.parse(new FileInputStream(new File("C:/Users/xyz.xml")));
    prettyPrint(doc);

}

private static String prettyPrint(Document document)
        throws TransformerException {
    TransformerFactory transformerFactory = TransformerFactory
            .newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
    DOMSource source = new DOMSource(document);
    StringWriter strWriter = new StringWriter();
    StreamResult result = new StreamResult(strWriter);transformer.transform(source, result);
    System.out.println(strWriter.getBuffer().toString());

    return strWriter.getBuffer().toString();

}

To solve this issue on my side, I had to use a combo of what was already proposed there

DECLARE
  chunk1 CLOB; chunk2 CLOB; chunk3 CLOB;
BEGIN
  chunk1 := 'very long literal part 1';
  chunk2 := 'very long literal part 2';
  chunk3 := 'very long literal part 3';

  INSERT INTO table (MY_CLOB)
  SELECT ( chunk1 || chunk2 || chunk3 ) FROM dual;
END;

Hope this helps.

Recursion in Python works just as recursion in an other language, with the recursive construct defined in terms of itself:

For example a recursive class could be a binary tree (or any tree):

class tree():
    def __init__(self):
        '''Initialise the tree'''
        self.Data = None
        self.Count = 0
        self.LeftSubtree = None
        self.RightSubtree = None

    def Insert(self, data):
        '''Add an item of data to the tree'''
        if self.Data == None:
            self.Data = data
            self.Count += 1
        elif data < self.Data:
            if self.LeftSubtree == None:
                # tree is a recurive class definition
                self.LeftSubtree = tree()
            # Insert is a recursive function
            self.LeftSubtree.Insert(data)
        elif data == self.Data:
            self.Count += 1
        elif data > self.Data:
            if self.RightSubtree == None:
                self.RightSubtree = tree()
            self.RightSubtree.Insert(data)

if __name__ == '__main__':
    T = tree()
    # The root node
    T.Insert('b')
    # Will be put into the left subtree
    T.Insert('a')
    # Will be put into the right subtree
    T.Insert('c')

As already mentioned a recursive structure must have a termination condition. In this class, it is not so obvious because it only recurses if new elements are added, and only does it a single time extra.

Also worth noting, python by default has a limit to the depth of recursion available, to avoid absorbing all of the computer's memory. On my computer this is 1000. I don't know if this changes depending on hardware, etc. To see yours :

import sys
sys.getrecursionlimit()

and to set it :

import sys #(if you haven't already)
sys.setrecursionlimit()

edit: I can't guarentee that my binary tree is the most efficient design ever. If anyone can improve it, I'd be happy to hear how

''.join([a, b]) is better solution than +.

Because Code should be written in a way that does not disadvantage other implementations of Python (PyPy, Jython, IronPython, Cython, Psyco, and such)

form a += b or a = a + b is fragile even in CPython and isn't present at all in implementations that don't use refcounting (reference counting is a technique of storing the number of references, pointers, or handles to a resource such as an object, block of memory, disk space or other resource)

https://www.python.org/dev/peps/pep-0008/#programming-recommendations

This is the perfect job for the query selector...

var Set1=document.querySelectorAll('input[type=button]');  // by type

var Set2=document.querySelectorAll('input[name=goButton]'); // by name

var Set3=document.querySelectorAll('input[value=Go]'); // by value

You can then loop through these collections to operate on elements found.

Simple version for Python 2.7+

my_ordered_dict = json.loads(json_str, object_pairs_hook=collections.OrderedDict)

Or for Python 2.4 to 2.6

import simplejson as json
import ordereddict

my_ordered_dict = json.loads(json_str, object_pairs_hook=ordereddict.OrderedDict)

use android:layout_gravity instead of android:gravity

android:gravity sets the gravity of the content of the View its used on. android:layout_gravity sets the gravity of the View or Layout in its parent.

Add a parameter of type UriComponentsBuilder to your controller method. Spring will give you an instance that's preconfigured with the URI for the current request, and you can then customize it (such as by using MvcUriComponentsBuilder.relativeTo to point at a different controller using the same prefix).

<html>
<head>
<meta charset="utf-8">
<title>Best Login Page design in html and css</title>
<style type="text/css">
body {
background-color: #f4f4f4;
color: #5a5656;
font-family: 'Open Sans', Arial, Helvetica, sans-serif;
font-size: 16px;
line-height: 1.5em;
}
a { text-decoration: none; }
h1 { font-size: 1em; }
h1, p {
margin-bottom: 10px;
}
strong {
font-weight: bold;
}
.uppercase { text-transform: uppercase; }

/* ---------- LOGIN ---------- */
#login {
margin: 50px auto;
width: 300px;
}
form fieldset input[type="text"], input[type="password"] {
background-color: #e5e5e5;
border: none;
border-radius: 3px;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
color: #5a5656;
font-family: 'Open Sans', Arial, Helvetica, sans-serif;
font-size: 14px;
height: 50px;
outline: none;
padding: 0px 10px;
width: 280px;
-webkit-appearance:none;
}
form fieldset input[type="submit"] {
background-color: #008dde;
border: none;
border-radius: 3px;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
color: #f4f4f4;
cursor: pointer;
font-family: 'Open Sans', Arial, Helvetica, sans-serif;
height: 50px;
text-transform: uppercase;
width: 300px;
-webkit-appearance:none;
}
form fieldset a {
color: #5a5656;
font-size: 10px;
}
form fieldset a:hover { text-decoration: underline; }
.btn-round {
background-color: #5a5656;
border-radius: 50%;
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
color: #f4f4f4;
display: block;
font-size: 12px;
height: 50px;
line-height: 50px;
margin: 30px 125px;
text-align: center;
text-transform: uppercase;
width: 50px;
}
.facebook-before {
background-color: #0064ab;
border-radius: 3px 0px 0px 3px;
-moz-border-radius: 3px 0px 0px 3px;
-webkit-border-radius: 3px 0px 0px 3px;
color: #f4f4f4;
display: block;
float: left;
height: 50px;
line-height: 50px;
text-align: center;
width: 50px;
}
.facebook {
background-color: #0079ce;
border: none;
border-radius: 0px 3px 3px 0px;
-moz-border-radius: 0px 3px 3px 0px;
-webkit-border-radius: 0px 3px 3px 0px;
color: #f4f4f4;
cursor: pointer;
height: 50px;
text-transform: uppercase;
width: 250px;
}
.twitter-before {
background-color: #189bcb;
border-radius: 3px 0px 0px 3px;
-moz-border-radius: 3px 0px 0px 3px;
-webkit-border-radius: 3px 0px 0px 3px;
color: #f4f4f4;
display: block;
float: left;
height: 50px;
line-height: 50px;
text-align: center;
width: 50px;
}
.twitter {
background-color: #1bb2e9;
border: none;
border-radius: 0px 3px 3px 0px;
-moz-border-radius: 0px 3px 3px 0px;
-webkit-border-radius: 0px 3px 3px 0px;
color: #f4f4f4;
cursor: pointer;
height: 50px;
text-transform: uppercase;
width: 250px;
}
</style>
</head>
<body>
<div id="login">
<h1><strong>Welcome.</strong> Please login.</h1>
<form action="javascript:void(0);" method="get">
<fieldset>
<p><input type="text" required value="Username" onBlur="if(this.value=='')this.value='Username'" onFocus="if(this.value=='Username')this.value='' "></p>
<p><input type="password" required value="Password" onBlur="if(this.value=='')this.value='Password'" onFocus="if(this.value=='Password')this.value='' "></p>
<p><a href="#">Forgot Password?</a></p>
<p><input type="submit" value="Login"></p>
</fieldset>
</form>
<p><span class="btn-round">or</span></p>
<p>
<a class="facebook-before"></a>
<button class="facebook">Login Using Facbook</button>
</p>
<p>
<a class="twitter-before"></a>
<button class="twitter">Login Using Twitter</button>
</p>
</div> <!-- end login -->
</body>
</html>

In Rails 4.x (See http://edgeguides.rubyonrails.org/active_record_querying.html#not-conditions)

GroupUser.where.not(user_id: me)

In Rails 3.x

GroupUser.where(GroupUser.arel_table[:user_id].not_eq(me))

To shorten the length, you could store GroupUser.arel_table in a variable or if using inside the model GroupUser itself e.g., in a scope, you can use arel_table[:user_id] instead of GroupUser.arel_table[:user_id]

_{Rails 4.0 syntax credit to @jbearden's answer}

I couldn't figure out how to use the API using the first Google results. Fortunately a thread somewhere pointed me to this link: http://access.mvps.org/access/api/api0049.htm

Which works nicely. :)

1. Uninstall pg:

   gem uninstall pg

2. Uninstall postgres:

   brew uninstall postgres

3. Nuke the postgres folder which might be lingering with a bunch of stale stuff it in:

   rm -rf /usr/local/var/postgres

4. Reboot (maybe unnecessary)

5. Reinstall pg:

   brew install postgres

6. My comment in Chris Slade's answer starts pg the hard way, now I use brew services which has simplified my life in so many ways:

   brew install services

7. And start pg with it:

   brew services start postgresql

8. Reinstall the gem:

   gem install pg

And bobsyouruncle.

There are several ways to do it. The subplots method creates the figure along with the subplots that are then stored in the ax array. For example:

import matplotlib.pyplot as plt

x = range(10)
y = range(10)

fig, ax = plt.subplots(nrows=2, ncols=2)

for row in ax:
    for col in row:
        col.plot(x, y)

plt.show()

However, something like this will also work, it's not so "clean" though since you are creating a figure with subplots and then add on top of them:

fig = plt.figure()

plt.subplot(2, 2, 1)
plt.plot(x, y)

plt.subplot(2, 2, 2)
plt.plot(x, y)

plt.subplot(2, 2, 3)
plt.plot(x, y)

plt.subplot(2, 2, 4)
plt.plot(x, y)

plt.show()

Here's a one-module Python replacement for perl -p:

# Provide compatibility with `perl -p`

# Usage:
#
#     python -mloop_over_stdin_lines '<program>'

# In, `<program>`, use the variable `line` to read and change the current line.

# Example:
#
#         python -mloop_over_stdin_lines 'line = re.sub("pattern", "replacement", line)'

# From the perlrun documentation:
#
#        -p   causes Perl to assume the following loop around your
#             program, which makes it iterate over filename arguments
#             somewhat like sed:
# 
#               LINE:
#                 while (<>) {
#                     ...             # your program goes here
#                 } continue {
#                     print or die "-p destination: $!\n";
#                 }
# 
#             If a file named by an argument cannot be opened for some
#             reason, Perl warns you about it, and moves on to the next
#             file. Note that the lines are printed automatically. An
#             error occurring during printing is treated as fatal. To
#             suppress printing use the -n switch. A -p overrides a -n
#             switch.
# 
#             "BEGIN" and "END" blocks may be used to capture control
#             before or after the implicit loop, just as in awk.
# 

import re
import sys

for line in sys.stdin:
    exec(sys.argv[1], globals(), locals())
    try:
        print line,
    except:
        sys.exit('-p destination: $!\n')

How about

<!--[if IE]>
...
<![endif]-->

You can read here about conditional comments.

Include javascript using script tags just before your ending body tag. Preferably you will want to put it in a separate file and link to it to keep things a little more organized and easier to read. Theres a simple article here that will show you how http://www.selftaughtweb.com/how-to-include-javascript/

In addition to what John Skeet said, here's an overview of the Java 7 project. It includes a list and description of the features.

Note: JDK 7 was released on July 28, 2011, so you should now go to the official java SE site.

In short:

left arrow: 37
up arrow: 38
right arrow: 39
down arrow: 40

To use Infinity, you can use Double which supports Infinity: -

    System.out.println(Double.POSITIVE_INFINITY);
    System.out.println(Double.POSITIVE_INFINITY * -1);
    System.out.println(Double.NEGATIVE_INFINITY);

    System.out.println(Double.POSITIVE_INFINITY - Double.NEGATIVE_INFINITY);
    System.out.println(Double.POSITIVE_INFINITY - Double.POSITIVE_INFINITY);

OUTPUT: -

Infinity
-Infinity
-Infinity

Infinity 
NaN

Assuming it's faster to just move a pointer / set a byte to null (or however Java implements StringBuilder#setLength), rather than check a condition each time through the loop to see when to append the delimiter, you could use this method:

public static String Intersperse (Collection<?> collection, String delimiter)
{
    StringBuilder sb = new StringBuilder ();
    for (Object item : collection)
    {
        if (item == null) continue;
        sb.append (item).append (delimiter);
    }
    sb.setLength (sb.length () - delimiter.length ());
    return sb.toString ();
}

Using a property for the version generates the following warning:

[WARNING]
[WARNING] Some problems were encountered while building the effective model for xxx.yyy.sandbox:Sandbox:war:0.1.0-SNAPSHOT
[WARNING] 'version' contains an expression but should be a constant. @ xxx.yyy.sandbox:Sandbox:${my.version}, C:\Users\xxx\development\gwtsandbox\pom.xml, line 8, column 14
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]

If your problem is that you have to change the version in multiple places because you are switching versions, then the correct thing to do is to use the Maven Release Plugin that will do this for you automatically.

This works fine for me:

while True:
   answer = input('Do you want to continue?:')
   if answer.lower().startswith("y"):
      print("ok, carry on then")
   elif answer.lower().startswith("n"):
      print("sayonara, Robocop")
      exit()

edit: use input in python 3.2 instead of raw_input

https://github.com/FortAwesome/react-fontawesome

install fontawesome & react-fontawesome

$ npm i --save @fortawesome/fontawesome
$ npm i --save @fortawesome/react-fontawesome
$ npm i --save @fortawesome/fontawesome-free-solid
$ npm i --save @fortawesome/fontawesome-free-regular
$ npm i --save @fortawesome/fontawesome-svg-core

then in your component

import React, { Component } from 'react';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
import { faCheckSquare, faCoffee } from '@fortawesome/fontawesome-free-solid'
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        <h1>
          <FontAwesomeIcon icon={faCoffee} />
        </h1>
      </div>
    );
  }
}

export default App;

On my VS install (VS 2008) #if RELEASE does not work. However you could just use #if !DEBUG

Example:

#if !DEBUG
SendTediousEmail()
#endif

You can cast an integer to a string in this way

intval::text

and so in your case

SELECT * FROM table WHERE <some integer>::text = 'string of numbers'

Although using const to define functions seems like a hack, but it comes with some great advantages that make it superior (in my opinion)

1. It makes the function immutable, so you don't have to worry about that function being changed by some other piece of code.

2. You can use fat arrow syntax, which is shorter & cleaner.

3. Using arrow functions takes care of this binding for you.

example with function

// define a function_x000D_
function add(x, y) { return x + y; }_x000D_
_x000D_
// use it_x000D_
console.log(add(1, 2)); // 3_x000D_
_x000D_
// oops, someone mutated your function_x000D_
add = function (x, y) { return x - y; };_x000D_
_x000D_
// now this is not what you expected_x000D_
console.log(add(1, 2)); // -1

same example with const

// define a function (wow! that is 8 chars shorter)_x000D_
const add = (x, y) => x + y;_x000D_
_x000D_
// use it_x000D_
console.log(add(1, 2)); // 3_x000D_
_x000D_
// someone tries to mutate the function_x000D_
add = (x, y) => x - y; // Uncaught TypeError: Assignment to constant variable._x000D_
// the intruder fails and your function remains unchanged

After having it defined in your manifest file, a friendlier alternative to the native solution would be using Aaper: https://github.com/LikeTheSalad/aaper like so:

@EnsurePermissions(permissions = [Manifest.permission.ACCESS_FINE_LOCATION])
private fun scanForLocation() {
    // Your code that needs the location permission granted.
}

Disclaimer, I'm the creator of Aaper.

    public String encrypt(String str) {
        try {
            // Encode the string into bytes using utf-8
            byte[] utf8 = str.getBytes("UTF8");

            // Encrypt
            byte[] enc = ecipher.doFinal(utf8);

            // Encode bytes to base64 to get a string
            return new sun.misc.BASE64Encoder().encode(enc);
        } catch (javax.crypto.BadPaddingException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (UnsupportedEncodingException e) {
        } catch (java.io.IOException e) {
        }
        return null;
    }

    public String decrypt(String str) {
        try {
            // Decode base64 to get bytes
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);

            // Decrypt
            byte[] utf8 = dcipher.doFinal(dec);

            // Decode using utf-8
            return new String(utf8, "UTF8");
        } catch (javax.crypto.BadPaddingException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (UnsupportedEncodingException e) {
        } catch (java.io.IOException e) {
        }
        return null;
    }
}

Here's an example that uses the class:

try {
    // Generate a temporary key. In practice, you would save this key.
    // See also Encrypting with DES Using a Pass Phrase.
    SecretKey key = KeyGenerator.getInstance("DES").generateKey();

    // Create encrypter/decrypter class
    DesEncrypter encrypter = new DesEncrypter(key);

    // Encrypt
    String encrypted = encrypter.encrypt("Don't tell anybody!");

    // Decrypt
    String decrypted = encrypter.decrypt(encrypted);
} catch (Exception e) {
}

An alternative in Java 8:

String[] strings = list.stream().toArray(String[]::new);

Since Java 11:

String[] strings = list.toArray(String[]::new);

You're trying to compare your working tree with a particular branch name, so you want this:

git diff master -- foo

Which is from this form of git-diff (see the git-diff manpage)

   git diff [--options] <commit> [--] [<path>...]
       This form is to view the changes you have in your working tree
       relative to the named <commit>. You can use HEAD to compare it with
       the latest commit, or a branch name to compare with the tip of a
       different branch.

FYI, there is also a --cached (aka --staged) option for viewing the diff of what you've staged, rather than everything in your working tree:

   git diff [--options] --cached [<commit>] [--] [<path>...]
       This form is to view the changes you staged for the next commit
       relative to the named <commit>.
       ...
       --staged is a synonym of --cached.

First fetch the new master from the upstream repository, then rebase your work branch on that:

git fetch origin            # Updates origin/master
git rebase origin/master    # Rebases current branch onto origin/master

Update: Please see Paul Draper's answer for a more concise way to do the same - recent Git versions provide a simpler way to do the equivalent of the above two commands.

Checkboxes, by design, are meant to be toggled on or off. They are not dependent on other checkboxes, so you can turn as many on and off as you wish.

Radio buttons, however, are designed to only allow one element of a group to be selected at any time.

References:

Checkboxes: MDN Link

Radio Buttons: MDN Link

CATALINA_BASE is optional.

However, in the following scenarios it helps to setup CATALINA_BASE that is separate from CATALINA_HOME.

1. When more than 1 instances of tomcat are running on same host

   • This helps have only 1 runtime of tomcat installation, with multiple CATALINA_BASE server configurations running on separate ports.
   • If any patching, or version upgrade needs be, only 1 installation changes required, or need to be tested/verified/signed-off.

2. Separation of concern (Single responsibility)

   • Tomcat runtime is standard and does not change during every release process. i.e. Tomcat binaries
   • Release process may add more stuff as webapplication (webapps folder), environment configuration (conf directory), logs/temp/work directory

You can also do what the "Service Reference" generated code does

public class ServiceXClient : ClientBase<IServiceX>, IServiceX
{
    public ServiceXClient() { }

    public ServiceXClient(string endpointConfigurationName) :
        base(endpointConfigurationName) { }

    public ServiceXClient(string endpointConfigurationName, string remoteAddress) :
        base(endpointConfigurationName, remoteAddress) { }

    public ServiceXClient(string endpointConfigurationName, EndpointAddress remoteAddress) :
        base(endpointConfigurationName, remoteAddress) { }

    public ServiceXClient(Binding binding, EndpointAddress remoteAddress) :
        base(binding, remoteAddress) { }

    public bool ServiceXWork(string data, string otherParam)
    {
        return base.Channel.ServiceXWork(data, otherParam);
    }
}

Where IServiceX is your WCF Service Contract

Then your client code:

var client = new ServiceXClient(new WSHttpBinding(SecurityMode.None), new EndpointAddress("http://localhost:911"));
client.ServiceXWork("data param", "otherParam param");

I'm astonished by the second number you mention (and confirm by your requested rounding) -- at first I thought my instinct for mental arithmetic was starting to fail me (I am getting older, after all, so that might be going the same way as my once-sharp memory!-)... but then I confirmed it hasn't, yet, by using, as I imagine you are, Python 3.1, and copying and pasting..:

>>> def input_meal():  
...     mealPrice = input('Enter the meal subtotal: $')  
...     mealPrice = float (mealPrice)  
...     return mealPrice  
... 
>>> def calc_tax(mealPrice):  
...     tax = mealPrice*.06  
...     return tax
... 
>>> m = input_meal()
Enter the meal subtotal: $34.45
>>> print(calc_tax(m))
2.067
>>> 

...as expected -- yet, you say it instead "returns a display of $ 2.607"... which might be a typo, just swapping two digits, except that you then ask "How can I set that to $2.61 instead?" so it really seems you truly mean 2.607 (which might be rounded to 2.61 in various ways) and definitely not the arithmetically correct result, 2.067 (which at best might be rounded to 2.07... definitely not to 2.61 as you request).

I imagine you first had the typo occur in transcription, and then mentally computed the desired rounding from the falsified-by-typo 2.607 rather than the actual original result -- is that what happened? It sure managed to confuse me for a while!-)

Anyway, to round a float to two decimal digits, simplest approach is the built-in function round with a second argument of 2:

>>> round(2.067, 2)
2.07
>>> round(2.607, 2)
2.61

For numbers exactly equidistant between two possibilities, it rounds-to-even:

>>> round(2.605, 2)
2.6
>>> round(2.615, 2)
2.62

or, as the docs put it (exemplifying with the single-argument form of round, which rounds to the closest integer):

if two multiples are equally close, rounding is done toward the even choice (so, for example, both round(0.5) and round(-0.5) are 0, and round(1.5) is 2).

However, for computations on money, I second the recommendation, already given in other answers, to stick with what the decimal module offers, instead of float numbers.

There is no explicit Clone button. Basically what you do is create an image, or snapshot of an existing EC2 instance, and then spin up a new instance using that snapshot.

First create an image from an existing EC2 instance.

Check your snapshots list to see if the process is completed. This usually takes around 20 minutes depending on how large your instance drive is.

Then, you need to create a new instance and use that image as the AMI.

You can use the ?? operator to set the default value but first you must set the Nullable property to true in your dbml file in the required field (xx.Online)

var hht = from x in db.HandheldAssets
        join a in db.HandheldDevInfos on x.AssetID equals a.DevName into DevInfo
        from aa in DevInfo.DefaultIfEmpty()
        select new
        {
        AssetID = x.AssetID,
        Status = xx.Online ?? false
        };

That is okay for removing of data connections by using VBA as follows:

Sub deleteConn()
    Dim xlBook As Workbook
    Dim Cn As WorkbookConnection
    Dim xlSheet As Worksheet
    Dim Qt As QueryTable
    Set xlBook = ActiveWorkbook
    For Each Cn In xlBook.Connections
        Debug.Print VarType(Cn)
        Cn.Delete
    Next Cn
    For Each xlSheet In xlBook.Worksheets
        For Each Qt In xlSheet.QueryTables
            Debug.Print Qt.Name
            Qt.Delete
        Next Qt
    Next xlSheet
End Sub

How about this?

var people = [
{
    name: 'a75',
    item1: false,
    item2: false
},
{
    name: 'z32',
    item1: true,
    item2: false
},
{
    name: 'e77',
    item1: false,
    item2: false
}];

function sort_by_key(array, key)
{
 return array.sort(function(a, b)
 {
  var x = a[key]; var y = b[key];
  return ((x < y) ? -1 : ((x > y) ? 1 : 0));
 });
}

people = sort_by_key(people, 'name');

This allows you to specify the key by which you want to sort the array so that you are not limited to a hard-coded name sort. It will work to sort any array of objects that all share the property which is used as they key. I believe that is what you were looking for?

And here is a jsFiddle: http://jsfiddle.net/6Dgbu/

Try explicitly enumerating the results by calling ToList().

Change

foreach (var item in query)

to

foreach (var item in query.ToList())

The condition below:

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

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

Instead you can use

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

if (CollectionUtils.isNotEmpty(listName))

Is the same as:

if(listName != null && !listName.isEmpty())

In first approach listName can be null and null pointer exception will not be thrown. In second approach you have to check for null manually. First approach is better because it requires less work from you. Using .size() != 0 is something unnecessary at all, also i learned that it is slower than using .isEmpty()

Different Browsers enable different security measures when the HTTPOnly flag is set. For instance Opera and Safari do not prevent javascript from writing to the cookie. However, reading is always forbidden on the latest version of all major browsers.

But more importantly why do you want to read an HTTPOnly cookie? If you are a developer, just disable the flag and make sure you test your code for xss. I recommend that you avoid disabling this flag if at all possible. The HTTPOnly flag and "secure flag" (which forces the cookie to be sent over https) should always be set.

If you are an attacker, then you want to hijack a session. But there is an easy way to hijack a session despite the HTTPOnly flag. You can still ride on the session without knowing the session id. The MySpace Samy worm did just that. It used an XHR to read a CSRF token and then perform an authorized task. Therefore, the attacker could do almost anything that the logged user could do.

People have too much faith in the HTTPOnly flag, XSS can still be exploitable. You should setup barriers around sensitive features. Such as the change password filed should require the current password. An admin's ability to create a new account should require a captcha, which is a CSRF prevention technique that cannot be easily bypassed with an XHR.

Delete entire node "Element" (inside "Connections" tree) from XML file, used by version 18 or higher.

C:\Users\%username%\AppData\Roaming\Microsoft\SQL Server Management Studio\18.0\UserSettings.xml

While they are not the same thing, in one sense DISTINCT implies a GROUP BY, because every DISTINCT could be re-written using GROUP BY instead. With that in mind, it doesn't make sense to order by something that's not in the aggregate group.

For example, if you have a table like this:

col1  col2
----  ----
 1     1
 1     2
 2     1
 2     2
 2     3
 3     1

and then try to query it like this:

SELECT DISTINCT col1 FROM [table] WHERE col2 > 2 ORDER BY col1, col2

That would make no sense, because there could end up being multiple col2 values per row. Which one should it use for the order? Of course, in this query you know the results wouldn't be that way, but the database server can't know that in advance.

Now, your case is a little different. You included all the columns from the order by clause in the select clause, and therefore it would seem at first glance that they were all grouped. However, some of those columns were included in a calculated field. When you do that in combination with distinct, the distinct directive can only be applied to the final results of the calculation: it doesn't know anything about the source of the calculation any more.

This means the server doesn't really know it can count on those columns any more. It knows that they were used, but it doesn't know if the calculation operation might cause an effect similar to my first simple example above.

So now you need to do something else to tell the server that the columns are okay to use for ordering. There are several ways to do that, but this approach should work okay:

SELECT rsc.RadioServiceCodeId,
            rsc.RadioServiceCode + ' - ' + rsc.RadioService as RadioService
FROM sbi_l_radioservicecodes rsc
INNER JOIN sbi_l_radioservicecodegroups rscg 
    ON rsc.radioservicecodeid = rscg.radioservicecodeid
WHERE rscg.radioservicegroupid IN 
    (SELECT val FROM dbo.fnParseArray(@RadioServiceGroup,','))
    OR @RadioServiceGroup IS NULL  
GROUP BY rsc.RadioServiceCode,rsc.RadioServiceCodeId,rsc.RadioService
ORDER BY rsc.RadioServiceCode,rsc.RadioServiceCodeId,rsc.RadioService

This is the most up-to-date solution.

<form name="frmChkForm" id="frmChkForm">
    <input type="checkbox" name="chkcc9" id="group1" />Check Me
    <input type="checkbox" name="chk9[120]" class="group1" />
    <input type="checkbox" name="chk9[140]" class="group1" />
    <input type="checkbox" name="chk9[150]" class="group1" />
</form>

$(function() {
    enable_cb();
    $("#group1").click(enable_cb);
});

function enable_cb() {
    $("input.group1").prop("disabled", !this.checked);
}

Here is the usage details for .attr() and .prop().

jQuery 1.6+

Use the new .prop() function:

$("input.group1").prop("disabled", true);
$("input.group1").prop("disabled", false);

jQuery 1.5 and below

The .prop() function is not available, so you need to use .attr().

To disable the checkbox (by setting the value of the disabled attribute) do

$("input.group1").attr('disabled','disabled');

and for enabling (by removing the attribute entirely) do

$("input.group1").removeAttr('disabled');

Any version of jQuery

If you're working with just one element, it will always be fastest to use DOMElement.disabled = true. The benefit to using the .prop() and .attr() functions is that they will operate on all matched elements.

// Assuming an event handler on a checkbox
if (this.disabled)

ref: Setting "checked" for a checkbox with jQuery?

The curly braces mean concatenation, from most significant bit (MSB) on the left down to the least significant bit (LSB) on the right. You are creating a 32-bit bus (result) whose 16 most significant bits consist of 16 copies of bit 15 (the MSB) of the a bus, and whose 16 least significant bits consist of just the a bus (this particular construction is known as sign extension, which is needed e.g. to right-shift a negative number in two's complement form and keep it negative rather than introduce zeros into the MSBits).

There is a tutorial here*, but it doesn't explain too much more than the above paragraph.

For what it's worth, the nested curly braces around a[15:0] are superfluous.

*Beware: the example within the tutorial link contains a typo when demonstrating multiple concatenations - the (2{C}} should be a {2{2}}.

Or, for less code, inside your click you place:

setTimeout(function(){ 

$('#DIV_ID').scrollTop(0);

}, 500);

There is an other way to load jQuery dynamically (source). You could also use

document.write('<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"><\/script>');

It's considered bad practice to use document.write, but for sake of completion it's good to mention it.

See Why is document.write considered a "bad practice"? for the reasons. The pro is that document.write does block your page from loading other assests, so there is no need to create a callback function.

Just don't anchor your pattern:

/Test/

The above regex will check for the literal string "Test" being found somewhere within it.

i had same problem. I was run it on terminal with "sudo geany", you should run it without "sudo" just type on terminal "geany" and it is solved for me.

In your invoke web request just use the parameter -UseBasicParsing

e.g. in your script (line 2) you should use:

$rss = Invoke-WebRequest -UseBasicParsing

According to the documentation, this parameter is necessary on systems where IE isn't installed or configured.

Uses the response object for HTML content without Document Object Model (DOM) parsing. This parameter is required when Internet Explorer is not installed on the computers, such as on a Server Core installation of a Windows Server operating system.

This just means that the git clone copied the files down from github and placed them into a folder. If you try to do it again it will not let you because it can't clone into a folder that has files into it. So if you think the git clone did not complete properly, just delete the folder and do the git clone again. The clone creates a folder the same name as the git repo.

With jQuery (and without FormData API) you can use something like this:

function readFile(file){
   var loader = new FileReader();
   var def = $.Deferred(), promise = def.promise();

   //--- provide classic deferred interface
   loader.onload = function (e) { def.resolve(e.target.result); };
   loader.onprogress = loader.onloadstart = function (e) { def.notify(e); };
   loader.onerror = loader.onabort = function (e) { def.reject(e); };
   promise.abort = function () { return loader.abort.apply(loader, arguments); };

   loader.readAsBinaryString(file);

   return promise;
}

function upload(url, data){
    var def = $.Deferred(), promise = def.promise();
    var mul = buildMultipart(data);
    var req = $.ajax({
        url: url,
        data: mul.data,
        processData: false,
        type: "post",
        async: true,
        contentType: "multipart/form-data; boundary="+mul.bound,
        xhr: function() {
            var xhr = jQuery.ajaxSettings.xhr();
            if (xhr.upload) {

                xhr.upload.addEventListener('progress', function(event) {
                    var percent = 0;
                    var position = event.loaded || event.position; /*event.position is deprecated*/
                    var total = event.total;
                    if (event.lengthComputable) {
                        percent = Math.ceil(position / total * 100);
                        def.notify(percent);
                    }                    
                }, false);
            }
            return xhr;
        }
    });
    req.done(function(){ def.resolve.apply(def, arguments); })
       .fail(function(){ def.reject.apply(def, arguments); });

    promise.abort = function(){ return req.abort.apply(req, arguments); }

    return promise;
}

var buildMultipart = function(data){
    var key, crunks = [], bound = false;
    while (!bound) {
        bound = $.md5 ? $.md5(new Date().valueOf()) : (new Date().valueOf());
        for (key in data) if (~data[key].indexOf(bound)) { bound = false; continue; }
    }

    for (var key = 0, l = data.length; key < l; key++){
        if (typeof(data[key].value) !== "string") {
            crunks.push("--"+bound+"\r\n"+
                "Content-Disposition: form-data; name=\""+data[key].name+"\"; filename=\""+data[key].value[1]+"\"\r\n"+
                "Content-Type: application/octet-stream\r\n"+
                "Content-Transfer-Encoding: binary\r\n\r\n"+
                data[key].value[0]);
        }else{
            crunks.push("--"+bound+"\r\n"+
                "Content-Disposition: form-data; name=\""+data[key].name+"\"\r\n\r\n"+
                data[key].value);
        }
    }

    return {
        bound: bound,
        data: crunks.join("\r\n")+"\r\n--"+bound+"--"
    };
};

//----------
//---------- On submit form:
var form = $("form");
var $file = form.find("#file");
readFile($file[0].files[0]).done(function(fileData){
   var formData = form.find(":input:not('#file')").serializeArray();
   formData.file = [fileData, $file[0].files[0].name];
   upload(form.attr("action"), formData).done(function(){ alert("successfully uploaded!"); });
});

With FormData API you just have to add all fields of your form to FormData object and send it via $.ajax({ url: url, data: formData, processData: false, contentType: false, type:"POST"})

Another one with an SVG as inline overlay-image (note: if you use # inside the svg-code you have to urlencode that!):

background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 1"><path fill="rgba(255, 255, 255, 0.4)" d="M0 0h1v1H0z"/></svg>')
                no-repeat center center/cover, 
            url('overlayed-image.jpg') no-repeat center center/cover;

To remove it from all inputs

input {
 outline:none;
}

Instead of command: docker run

You should use:

docker start **CONTAINER ID**

because the container is already exist

More info

You are asking Jackson to parse a StudentList. Tell it to parse a List (of students) instead. Since List is generic you will typically use a TypeReference

List<Student> participantJsonList = mapper.readValue(jsonString, new TypeReference<List<Student>>(){});

Remember that the MAX aggregate function will work on text as well as numbers. This query will only require the table to be scanned once.

SELECT Action,
       MAX( CASE data WHEN 'View' THEN data ELSE '' END ) ViewCol, 
       MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol
 FROM t
 GROUP BY Action

$product_id = $this->input->get('id', TRUE);
echo $product_id;

Your LMSInitialize function is declared inside Scorm_API_12 function. So it can be seen only in Scorm_API_12 function's scope.

If you want to use this function like API.LMSInitialize(""), declare Scorm_API_12 function like this:

function Scorm_API_12() {
var Initialized = false;

this.LMSInitialize = function(param) {
    errorCode = "0";
    if (param == "") {
        if (!Initialized) {
            Initialized = true;
            errorCode = "0";
            return "true";
        } else {
            errorCode = "101";
        }
    } else {
        errorCode = "201";
    }
    return "false";
}

// some more functions, omitted.
}

var API = new Scorm_API_12();

As @djikay mentioned, you cannot pass multiple FromBody parameters.

One workaround I have is to define a CompositeObject,

public class CompositeObject
{
    public Content Content { get; set; }
    public Config Config { get; set; }
}

and have your WebAPI takes this CompositeObject as the parameter instead.

public void StartProcessiong([FromBody] CompositeObject composite)
{ ... }

Lets say your data is -

data = {'a': [ [1, 2] ], 'b': [ [3, 4] ],'c':[ [5,6]] }

You can use the data.items() method to get the dictionary elements. Note, in django templates we do NOT put (). Also some users mentioned values[0] does not work, if that is the case then try values.items.

<table>
    <tr>
        <td>a</td>
        <td>b</td>
        <td>c</td>
    </tr>

    {% for key, values in data.items %}
    <tr>
        <td>{{key}}</td>
        {% for v in values[0] %}
        <td>{{v}}</td>
        {% endfor %}
    </tr>
    {% endfor %}
</table>

Am pretty sure you can extend this logic to your specific dict.

To iterate over dict keys in a sorted order - First we sort in python then iterate & render in django template.

return render_to_response('some_page.html', {'data': sorted(data.items())})

In template file:

{% for key, value in data %}
    <tr>
        <td> Key: {{ key }} </td> 
        <td> Value: {{ value }} </td>
    </tr>
{% endfor %}

in this question, you'll have some answers, including mine:

public Image resizeImage(int newWidth, int newHeight, string stPhotoPath)
 {
     Image imgPhoto = Image.FromFile(stPhotoPath); 

     int sourceWidth = imgPhoto.Width;
     int sourceHeight = imgPhoto.Height;

     //Consider vertical pics
    if (sourceWidth < sourceHeight)
    {
        int buff = newWidth;

        newWidth = newHeight;
        newHeight = buff;
    }

    int sourceX = 0, sourceY = 0, destX = 0, destY = 0;
    float nPercent = 0, nPercentW = 0, nPercentH = 0;

    nPercentW = ((float)newWidth / (float)sourceWidth);
    nPercentH = ((float)newHeight / (float)sourceHeight);
    if (nPercentH < nPercentW)
    {
        nPercent = nPercentH;
        destX = System.Convert.ToInt16((newWidth -
                  (sourceWidth * nPercent)) / 2);
    }
    else
    {
        nPercent = nPercentW;
        destY = System.Convert.ToInt16((newHeight -
                  (sourceHeight * nPercent)) / 2);
    }

    int destWidth = (int)(sourceWidth * nPercent);
    int destHeight = (int)(sourceHeight * nPercent);


    Bitmap bmPhoto = new Bitmap(newWidth, newHeight,
                  PixelFormat.Format24bppRgb);

    bmPhoto.SetResolution(imgPhoto.HorizontalResolution,
                 imgPhoto.VerticalResolution);

    Graphics grPhoto = Graphics.FromImage(bmPhoto);
    grPhoto.Clear(Color.Black);
    grPhoto.InterpolationMode =
        System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

    grPhoto.DrawImage(imgPhoto,
        new Rectangle(destX, destY, destWidth, destHeight),
        new Rectangle(sourceX, sourceY, sourceWidth, sourceHeight),
        GraphicsUnit.Pixel);

    grPhoto.Dispose();
    imgPhoto.Dispose();
    return bmPhoto;
}

It's an old post, with already good answers, but I add my two bits. I don't like to use console.log, I'd rather use a logger that logs to the console, or wherever I want, so I have a module defining a log function a bit like this one

function log(...args) {
  console.log(...args);
  chrome.extension.getBackgroundPage().console.log(...args);
}

When I call log("this is my log") it will write the message both in the popup console and the background console.

The advantage is to be able to change the behaviour of the logs without having to change the code (like disabling logs for production, etc...)

Change this:

if(isset($_POST['submit'])){

    if(!(isset($_POST['userName']))){
    $username = 'Anonymous';
    }      
    else $username = $_POST['userName'];
}

To this:

if(!empty($_POST['userName'])){
     $username = $_POST['userName'];
}

if(empty($_POST['userName'])){
     $username = 'Anonymous';
}

In .NET 5.0 and later you can use the Convert.ToHexString() method.

using System;
using System.Text;

string value = "Hello world";

byte[] bytes = Encoding.UTF8.GetBytes(value);

string hexString = Convert.ToHexString(bytes);

Console.WriteLine($"String value: \"{value}\"");
Console.WriteLine($"   Hex value: \"{hexString}\"");

Running the above example code, you would get the following output:

String value: "Hello world"
   Hex value: "48656C6C6F20776F726C64"

Salaam, I have both Visual Studio 2017 and Visual Studio 2019

Visual Studio 2019 does not show this error but 2017 does. Try Installing Visual Studio 2019.

Visual Studio 2017

Visual Studio 2019

I know this is a very old question and the problem is marked as fixed. However, if someone with a case like mine where the table have trigger for data logging on update events, this will cause problem. Both the columns will get the update and log will make useless entries. The way I did

IF (CONDITION) IS TRUE
BEGIN
    UPDATE table SET columnx = 25
END
ELSE
BEGIN
    UPDATE table SET columny = 25
END

Now this have another benefit that it does not have unnecessary writes on the table like the above solutions.

When you have a more complex id string the double quotes are mandatory.

For example if you have an id like this: id="2.2", the correct way to access it is: $('input[id="2.2"]')

As much as possible use the double quotes, for safety reasons.

By default, the DirectoryIndex is set to:

DirectoryIndex index.html index.htm default.htm index.php index.php3 index.phtml index.php5 index.shtml mwindex.phtml

Apache will look for each of the above files, in order, and serve the first one it finds when a visitor requests just a directory. If the webserver finds no files in the current directory that match names in the DirectoryIndex directive, then a directory listing will be displayed to the browser, showing all files in the current directory.

The order should be DirectoryIndex index.html index.php // default is index.html

Reference: Here.

There is the command line parameter --spider exactly for this. In this mode, wget does not download the files and its return value is zero if the resource was found and non-zero if it was not found. Try this (in your favorite shell):

wget -q --spider address
echo $?

Or if you want full output, leave the -q off, so just wget --spider address. -nv shows some output, but not as much as the default.

 <Grid >
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Button Command="{Binding ClickCommand}" Width="100" Height="100" Content="wefwfwef"/>
</Grid>

the code behind for the window:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        DataContext = new ViewModelBase();
    }
}

The ViewModel:

public class ViewModelBase
{
    private ICommand _clickCommand;
    public ICommand ClickCommand
    {
        get
        {
            return _clickCommand ?? (_clickCommand = new CommandHandler(() => MyAction(), ()=> CanExecute));
        }
    }
     public bool CanExecute
     {
        get
        {
            // check if executing is allowed, i.e., validate, check if a process is running, etc. 
            return true/false;
        }
     }

    public void MyAction()
    {

    }
}

Command Handler:

 public class CommandHandler : ICommand
{
    private Action _action;
    private Func<bool> _canExecute;

    /// <summary>
    /// Creates instance of the command handler
    /// </summary>
    /// <param name="action">Action to be executed by the command</param>
    /// <param name="canExecute">A bolean property to containing current permissions to execute the command</param>
    public CommandHandler(Action action, Func<bool> canExecute)
    {
        _action = action;
        _canExecute = canExecute;
    }

    /// <summary>
    /// Wires CanExecuteChanged event 
    /// </summary>
    public event EventHandler CanExecuteChanged
    {
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }

    /// <summary>
    /// Forcess checking if execute is allowed
    /// </summary>
    /// <param name="parameter"></param>
    /// <returns></returns>
    public bool CanExecute(object parameter)
    {
        return _canExecute.Invoke();
    }

    public void Execute(object parameter)
    {
        _action();
    }
}

I hope this will give you the idea.

What's the first part of your Subversion repository URL?

• If your URL looks like: http://subversion/repos/, then you're probably going over Port 80.
• If your URL looks like: https://subversion/repos/, then you're probably going over Port 443.
• If your URL looks like: svn://subversion/, then you're probably going over Port 3690.
• If your URL looks like: svn+ssh://subversion/repos/, then you're probably going over Port 22.
• If your URL contains a port number like: http://subversion/repos:8080, then you're using that port.

I can't guarantee the first four since it's possible to reconfigure everything to use different ports, of if you go through a proxy of some sort.

If you're using a VPN, you may have to configure your VPN client to reroute these to their correct ports. A lot of places don't configure their correctly VPNs to do this type of proxying. It's either because they have some sort of anal-retentive IT person who's being overly security conscious, or because they simply don't know any better. Even worse, they'll give you a client where this stuff can't be reconfigured.

The only way around that is to log into a local machine over the VPN, and then do everything from that system.

Get rid of the semicolon after WordGame.

You really should have discovered this problem when the class was a lot smaller. When you're writing code, you should be compiling about every time you add half a dozen lines.

Some of the other answers would have poor performance on very large arrays, because methods like removeObject: and removeObjectsInArray: involve doing a linear search of the receiver, which is a waste because you already know where the object is. Also, any call to removeObjectAtIndex: will have to copy values from the index to the end of the array up by one slot at a time.

More efficient would be the following:

NSMutableArray *array = ...
NSMutableArray *itemsToKeep = [NSMutableArray arrayWithCapacity:[array count]];
for (id object in array) {
    if (! shouldRemove(object)) {
        [itemsToKeep addObject:object];
    }
}
[array setArray:itemsToKeep];

Because we set the capacity of itemsToKeep, we don't waste any time copying values during a resize. We don't modify the array in place, so we are free to use Fast Enumeration. Using setArray: to replace the contents of array with itemsToKeep will be efficient. Depending on your code, you could even replace the last line with:

[array release];
array = [itemsToKeep retain];

So there isn't even a need to copy values, only swap a pointer.

The iFrame attribute does not support percent in HTML5. It only supports pixels. http://www.w3schools.com/tags/att_iframe_height.asp

As long as Event_ID is Integer, do this:

INSERT INTO Table (foo, bar, Event_ID)
SELECT foo, bar, (Event_ID + 155)
  FROM Table
WHERE Event_ID = "120"

Using EXEC

You can use following example for building SQL statement.

DECLARE @sqlCommand varchar(1000)
DECLARE @columnList varchar(75)
DECLARE @city varchar(75)
SET @columnList = 'CustomerID, ContactName, City'
SET @city = '''London'''
SET @sqlCommand = 'SELECT ' + @columnList + ' FROM customers WHERE City = ' + @city
EXEC (@sqlCommand)

Using sp_executesql

With using this approach you can ensure that the data values being passed into the query are the correct datatypes and avoind use of more quotes.

DECLARE @sqlCommand nvarchar(1000)
DECLARE @columnList varchar(75)
DECLARE @city varchar(75)
SET @columnList = 'CustomerID, ContactName, City'
SET @city = 'London'
SET @sqlCommand = 'SELECT ' + @columnList + ' FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75)', @city = @city

Reference

The JDK path might change when you update JAVA. For Mac you should go to the following path to check the JAVA version installed.

/Library/Java/JavaVirtualMachines/

Next, say JDK version that you find is jdk1.8.0_151.jdk, the path to home directory within it is the JDK home path.

In my case it was :

/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home

You can configure it by going to File -> Project Structure -> SDKs.

If you happen to already have a diff tool associated with filetypes (say, because you installed TortoiseSVN which comes with a diff viewer) you could just pipe the regular git diff output to a "temp" file, then just open that file directly without needing to know anything about the viewer:

git diff > "~/temp.diff" && start "~/temp.diff"

Setting it as a global alias works even better: git what

[alias]
    what = "!f() { git diff > "~/temp.diff" && start "~/temp.diff"; }; f"

System.out.println("\"Hello\"")

It seems System.gc() do not work on Art Android 6.0.1 Nexus 5x, So I use Runtime.getRuntime().gc(); instead.

To print the content of Root store:

certutil -store Root

To output content to a file:

certutil -store Root > root_content.txt

To add certificate to Root store:

certutil -addstore -enterprise Root file.cer

Now I've found the problem.

Removing the obj_exception_throw from my breakpoints solved this. Now it's caught by the @try block and also, NSSetUncaughtExceptionHandler will handle this if a @try block is missing.

The way I understand this question is "How to make git recognize a deletion of an old file and creation of a new file as a file move".

Yes in the working directory once you delete an old file and inserted an old file, git status will say "deleted: old_file" and "Untracked files: ... new_file"

But in the staging index/level once you add and remove file using git it will be recognized as a file move. To do so, assuming you have done the deletion and creation using your Operation System, give the following commands:

git add new_file
git rm old_file

If the contents of the file are 50% or more similar, running git status command should give you:

renamed: old_file -> new_file

Go to file's path then un-check read only checkbox of this file.

Or can also insert the statement inside bracket.

SELECT * FROM tablename WHERE NOT (columnA = 'x')

std::atan2 allows calculating the arctangent of all four quadrants. std::atan only allows calculating from quadrants 1 and 4.

Actually, a concise rule for Python Scope resolution, from Learning Python, 3rd. Ed.. (These rules are specific to variable names, not attributes. If you reference it without a period, these rules apply.)

LEGB Rule

• Local — Names assigned in any way within a function (def or lambda), and not declared global in that function

• Enclosing-function — Names assigned in the local scope of any and all statically enclosing functions (def or lambda), from inner to outer

• Global (module) — Names assigned at the top-level of a module file, or by executing a global statement in a def within the file

• Built-in (Python) — Names preassigned in the built-in names module: open, range, SyntaxError, etc

So, in the case of

code1
class Foo:
    code2
    def spam():
        code3
        for code4:
            code5
            x()

The for loop does not have its own namespace. In LEGB order, the scopes would be

• L: Local in def spam (in code3, code4, and code5)
• E: Any enclosing functions (if the whole example were in another def)
• G: Were there any x declared globally in the module (in code1)?
• B: Any builtin x in Python.

x will never be found in code2 (even in cases where you might expect it would, see Antti's answer or here).

I've found a couple of interesting use cases. These variants make use of the rangeOfString method and I include the equality example to show how one might best use the search and comparison features of Strings in Swift 2.0

//In viewDidLoad() I assign the current object description (A Swift String) to self.loadedObjectDescription
self.loadedObjectDescription = self.myObject!.description

Later after I've made changes to self.myObject, I can refer to the following string comparison routines (setup as lazy variables that return a Bool). This allows one to check the state at any time.

lazy var objectHasChanges : Bool = {
        guard self.myObject != nil else { return false }
        return !(self.loadedObjectDescription == self.myObject!.description)
    }()

A variant of this happens when sometimes I need to analyze a missing property on that object. A string search allows me to find a particular substring being set to nil (the default when an object is created).

    lazy var isMissingProperty : Bool = {
        guard self.myObject != nil else { return true }
        let emptyPropertyValue = "myProperty = nil"
        return (self.myObject!.description.rangeOfString(emptyPropertyValue) != nil) ? true : false
    }()

To remove a specific variable from the session use:

session_unregister('variableName');

(see documentation) or

unset($_SESSION['variableName']);

NOTE: session_unregister() has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.

Try this:

{
    "ACCOUNT_EXIST": true,
    "MultipleContacts": false
}

boolean success ((Boolean) jsonObject.get("ACCOUNT_EXIST")).booleanValue()

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <stroke android:width="3dip" android:color="#B1BCBE" />
    <corners android:radius="10dip"/>
    <padding android:left="3dip" android:top="3dip" android:right="3dip" android:bottom="3dip" />
</shape>

@David, just put padding same value as stroke, so border can be visible, regardeless image size

You are passing hello() as a string, also hello() means execute hello immediately.

try

onClick={hello}

SELECT left(NAME, charindex('_', NAME) - 1)
FROM tempdb..sysobjects
WHERE NAME LIKE '#%'
    AND NAME NOT LIKE '##%'
    AND upper(xtype) = 'U'
    AND NOT object_id('tempdb..' + NAME) IS NULL

you can remove the ## line if you want to include global temp tables.

The JSON reference states:

 any-Unicode-character-
     except-"-or-\\-or-
     control-character

Then lists the standard escape codes:

  \" Standard JSON quote
  \\ Backslash (Escape char)
  \/ Forward slash
  \b Backspace (ascii code 08)
  \f Form feed (ascii code 0C)
  \n Newline
  \r Carriage return
  \t Horizontal Tab
  \u four-hex-digits

From this I assumed that I needed to escape all the listed ones and all the other ones are optional. You can choose to encode all characters into \uXXXX if you so wished, or you could only do any non-printable 7-bit ASCII characters or characters with Unicode value not in \u0020 <= x <= \u007E range (32 - 126). Preferably do the standard characters first for shorter escape codes and thus better readability and performance.

Additionally you can read point 2.5 (Strings) from RFC 4627.

You may (or may not) want to (further) escape other characters depending on where you embed that JSON string, but that is outside the scope of this question.

Not sure what you are really after but if you want to print exactly what you have you can do:

Option 1

print(df['Item'].to_csv(index=False))

Sweet
Candy
Chocolate

Option 2

for v in df['Item']:
    print(v)

Sweet
Candy
Chocolate

Some "front ends", with the "Use Booleans" option enabled, will treat all TINYINT(1) columns as Boolean, and vice versa.

This allows you to, in the application, use TRUE and FALSE rather than 1 and 0.

This doesn't affect the database at all, since it's implemented in the application.

There is not really a BOOLEAN type in MySQL. BOOLEAN is just a synonym for TINYINT(1), and TRUE and FALSE are synonyms for 1 and 0.

If the conversion is done in the compiler, there will be no difference in performance in the application. Otherwise, the difference still won't be noticeable.

You should use whichever method allows you to code more efficiently, though not using the feature may reduce dependency on that particular "front end" vendor.

The variable i represents the index of the element you want to delete:

System.Array.Clear(ArrayName, i, 1)

why don't you do it like this:

in the pages:

<html>
   <head></head>
   <body>
      <?php $page = 'one'; include('navigation.php'); ?>
   </body>
</html>

in the navigation.php

<div id="nav">
   <ul>
      <li>
          <a <?php echo ($page == 'one') ? "class='active'" : ""; ?> 
                 href="index1.php">Tab1</a>/</li>
      <li>
          <a <?php echo ($page == 'two') ? "class='active'" : ""; ?> 
                  href="index2.php">Tab2</a>/</li>
      <li>
          <a <?php echo ($page == 'three') ? "class='active'" : ""; ?> 
                  href="index3.php">Tab3</a>/</li>
   </ul>
</div>

You will actually be able to control where in the page you are putting the navigation and what parameters you are passing to it.

Later edit: fixed syntax error.

The main advantages of ASP.net MVC are:

1. Enables the full control over the rendered HTML.

2. Provides clean separation of concerns(SoC).

3. Enables Test Driven Development (TDD).

4. Easy integration with JavaScript frameworks.

5. Following the design of stateless nature of the web.

6. RESTful urls that enables SEO.

7. No ViewState and PostBack events

The main advantage of ASP.net Web Form are:

1. It provides RAD development

2. Easy development model for developers those coming from winform development.

i founded this tool to auto generate wsdl to android code,

http://www.wsdl2code.com/Example.aspx

public void callWebService(){
    SampleService srv1 = new SampleService();
    Request req = new Request();
    req.companyId = "1";
    req.userName = "userName";
    req.password = "pas";
    Response response =  srv1.ServiceSample(req);
}

According to the help of cmake:

-C <initial-cache>
     Pre-load a script to populate the cache.

     When cmake is first run in an empty build tree, it creates a CMakeCache.txt file and populates it with customizable settings for the project.  This option may be used to specify a  file  from
     which to load cache entries before the first pass through the project's cmake listfiles.  The loaded entries take priority over the project's default values.  The given file should be a CMake
     script containing SET commands that use the CACHE option, not a cache-format file.

You make be able to create files like gcc_compiler.txt and clang_compiler.txt to includes all relative configuration in CMake syntax.

Clang Example (clang_compiler.txt):

 set(CMAKE_C_COMPILER "/usr/bin/clang" CACHE string "clang compiler" FORCE)

Then run it as

GCC:

cmake -C gcc_compiler.txt XXXXXXXX

Clang:

cmake -C clang_compiler.txt XXXXXXXX

Following will return true when checkbox is checked and false when not.

$(this).is(":checked")

Replace $(this) with the variable you want to check.

And used in a condition:

if ($(this).is(":checked")) {
  // do something
}

Any object in Java can be used as a lock using a synchronized block. This will also automatically take care of releasing the lock when an exception occurs.

Object someObject = ...;

synchronized (someObject) {
  ...
}

You can read more about this here: Intrinsic Locks and Synchronization

Use $("input").attr("maxlength", 4) if you're using jQuery version < 1.6 and $("input").prop("maxLength", 4) if you are using jQuery version 1.6+.

You can use the following commands to delete. Use the "match all docs" query in a delete by query command:

'<delete><query>*:*</query></delete>

You must also commit after running the delete so, to empty the index, run the following two commands:

curl http://localhost:8983/solr/update --data '<delete><query>*:*</query></delete>' -H 'Content-type:text/xml; charset=utf-8'
curl http://localhost:8983/solr/update --data '<commit/>' -H 'Content-type:text/xml; charset=utf-8'

Another strategy would be to add two bookmarks in your browser:

http://localhost:8983/solr/update?stream.body=<delete><query>*:*</query></delete>
http://localhost:8983/solr/update?stream.body=<commit/>

Source docs from SOLR:
https://wiki.apache.org/solr/FAQ#How_can_I_delete_all_documents_from_my_index.3F

If you want a real-world use case for this, try compiling a very old version of X Windows-- say, either XFree86 or XOrg from aboout 2004, right around the split-- using a "modern" (cough) version of gcc, such as 4.9.3.

You'll notice the build CFLAGS specify both "-ansi" and "-pedantic". In theory, this means, "blow up if anything even slightly violates the language spec". In practice, the 3.x series of gcc didn't catch very much of that kind of stuff, and building it with 4.9.3 will leave a smoking hole in the ground unless you set CFLAGS and BOOTSTRAPCFLAGS to "-fpermissive".

Using that flag, most of those C files will actually build, leaving you free to move on to the version-dependent wreckage the lexer will generate. =]

I got the same, error, I was running version .99xxx, I checked for updates from help menu and updated My RStudio to 1.0x, then the error did not come

So simple solution, just update your R Studio

The above were really close. Here's my solution:

Private Sub getDsClone(ByRef inClone As DataSet, ByVal matchStr As String, ByRef outClone As DataSet)
    Dim i As Integer

    outClone = inClone.Clone
    Dim dv As DataView = inClone.Tables(0).DefaultView
    dv.RowFilter = matchStr
    Dim dt As New DataTable
    dt = dv.ToTable
    For i = 0 To dv.Count - 1
        outClone.Tables(0).ImportRow(dv.Item(i).Row)
    Next
End Sub

That line works as-is in Python 3.

>>> sys.version
'3.2 (r32:88445, Oct 20 2012, 14:09:29) \n[GCC 4.5.2]'
>>> "(%d goals, $%d)" % (self.goals, self.penalties)
'(1 goals, $2)'

In simple words

$.ajax("info.txt").done(function(data) {
  alert(data);
}).fail(function(data){
  alert("Try again champ!");
});

if its get the info.text then it will alert and whatever function you add or if any how unable to retrieve info.text from the server then alert or error function.

The find command will take long time, the fastest way to search for file is using locate command, which looks for file names (and path) in a indexed database (updated by command updatedb).

The result will appear immediately with a simple command:

locate {file-name-or-path}

If the command is not found, you need to install mlocate package and run updatedb command first to prepare the search database for the first time.

More detail here: https://medium.com/@thucnc/the-fastest-way-to-find-files-by-filename-mlocate-locate-commands-55bf40b297ab

Your problem is that, if the user clicks cancel, operationType is null and thus throws a NullPointerException. I would suggest that you move

if (operationType.equalsIgnoreCase("Q")) 

to the beginning of the group of if statements, and then change it to

if(operationType==null||operationType.equalsIgnoreCase("Q")). 

This will make the program exit just as if the user had selected the quit option when the cancel button is pushed.

Then, change all the rest of the ifs to else ifs. This way, once the program sees whether or not the input is null, it doesn't try to call anything else on operationType. This has the added benefit of making it more efficient - once the program sees that the input is one of the options, it won't bother checking it against the rest of them.

I have fixed this problem when calling a MVC3 Controller. I added:

Response.AddHeader("Access-Control-Allow-Origin", "*"); 

before my

return Json(model, JsonRequestBehavior.AllowGet);

And also my $.ajax was complaining that it does not accept Content-type header in my ajax call, so I commented it out as I know its JSON being passed to the Action.

Hope that helps.

max_allowed_packet is set in mysql config, not on php side

[mysqld]
max_allowed_packet=16M 

You can see it's curent value in mysql like this:

SHOW VARIABLES LIKE 'max_allowed_packet';

You can try to change it like this, but it's unlikely this will work on shared hosting:

SET GLOBAL max_allowed_packet=16777216;

You can read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html

EDIT

The [mysqld] is necessary to make the max_allowed_packet working since at least mysql version 5.5.

Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required 32M max_allowed_packet. It you set the value under [mysqld_safe] (which is default settings came with the mysql installation) mode in /etc/my.cnf, it did no work. I did not dig into the problem. But after I change it to [mysqld] and restarted the mysqld, it worked.

//add a reference to System.Windows.Forms.dll

public partial class MainWindow : Window, System.Windows.Forms.IWin32Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void button_Click(object sender, RoutedEventArgs e)
    {
        var fbd = new FolderBrowserDialog();
        fbd.ShowDialog(this);
    }

    IntPtr System.Windows.Forms.IWin32Window.Handle
    {
        get
        {
            return ((HwndSource)PresentationSource.FromVisual(this)).Handle;
        }
    }
}

You can use chsh to change a user's shell.

Run the following code, for instance, to change your shell to Zsh

chsh -s /bin/zsh

As described in the manpage, and by Lorin, if the shell is not known by the OS, you have to add it to its known list: /etc/shells.

No, there are no dictionaries in php. The closest thing you have is an array. However, an array is different than a dictionary in that arrays have both an index and a key. Dictionaries only have keys and no index. What do I mean by that?

$array = array(
    "foo" => "bar",
    "bar" => "foo"
);

// as of PHP 5.4
$array = [
    "foo" => "bar",
    "bar" => "foo",
];

The following line is allowed with the above array but would give an error if it was a dictionary.

print $array[0]

Python has both arrays and dictionaries.

In typescript you can do the following to suppress the error:

let subString?: string;

subString > !null; - Note the added exclamation mark before null.

If you can live with the restriction that the methods of IFirst and ISecond must only interact with the contract of IFirst and ISecond (like in your example)... you can do what you ask with extension methods. In practice, this is rarely the case.

public interface IFirst {}
public interface ISecond {}

public class FirstAndSecond : IFirst, ISecond
{
}

public static MultipleInheritenceExtensions
{
  public static void First(this IFirst theFirst)
  {
    Console.WriteLine("First");
  }

  public static void Second(this ISecond theSecond)
  {
    Console.WriteLine("Second");
  }
}

///

public void Test()
{
  FirstAndSecond fas = new FirstAndSecond();
  fas.First();
  fas.Second();
}

So the basic idea is that you define the required implementation in the interfaces... this required stuff should support the flexible implementation in the extension methods. Anytime you need to "add methods to the interface" instead you add an extension method.

TL;DR: The answer depends on your implementation. For the pseudo code you posted, it works with negative weights.

Variants of Dijkstra's Algorithm

The key is there are 3 kinds of implementation of Dijkstra's algorithm, but all the answers under this question ignore the differences among these variants.

1. Using a nested for-loop to relax vertices. This is the easiest way to implement Dijkstra's algorithm. The time complexity is O(V^2).
2. Priority-queue/heap based implementation + NO re-entrance allowed, where re-entrance means a relaxed vertex can be pushed into the priority-queue again to be relaxed again later.
3. Priority-queue/heap based implementation + re-entrance allowed.

Version 1 & 2 will fail on graphs with negative weights (if you get the correct answer in such cases, it is just a coincidence), but version 3 still works.

The pseudo code posted under the original problem is the version 3 above, so it works with negative weights.

Here is a good reference from Algorithm (4th edition), which says (and contains the java implementation of version 2 & 3 I mentioned above):

Q. Does Dijkstra's algorithm work with negative weights?

A. Yes and no. There are two shortest paths algorithms known as Dijkstra's algorithm, depending on whether a vertex can be enqueued on the priority queue more than once. When the weights are nonnegative, the two versions coincide (as no vertex will be enqueued more than once). The version implemented in DijkstraSP.java (which allows a vertex to be enqueued more than once) is correct in the presence of negative edge weights (but no negative cycles) but its running time is exponential in the worst case. (We note that DijkstraSP.java throws an exception if the edge-weighted digraph has an edge with a negative weight, so that a programmer is not surprised by this exponential behavior.) If we modify DijkstraSP.java so that a vertex cannot be enqueued more than once (e.g., using a marked[] array to mark those vertices that have been relaxed), then the algorithm is guaranteed to run in E log V time but it may yield incorrect results when there are edges with negative weights.

For more implementation details and the connection of version 3 with Bellman-Ford algorithm, please see this answer from zhihu. It is also my answer (but in Chinese). Currently I don't have time to translate it into English. I really appreciate it if someone could do this and edit this answer on stackoverflow.

Take a look at this JQuery plugin:

http://fixedheadertable.com

It adds vertical (fixed header row) or horizontal (fixed first column) scrolling to an existing HTML table. There is a demo you can check for both cases of scrolling.

All of these answers are wrong! Do not use InsecureSkipVerify to deal with a CN that doesn't match the hostname. The Go developers unwisely were adamant about not disabling hostname checks (which has legitimate uses - tunnels, nats, shared cluster certs, etc), while also having something that looks similar but actually completely ignores the certificate check. You need to know that the certificate is valid and signed by a cert that you trust. But in common scenarios, you know that the CN won't match the hostname you connected with. For those, set ServerName on tls.Config. If tls.Config.ServerName == remoteServerCN, then the certificate check will succeed. This is what you want. InsecureSkipVerify means that there is NO authentication; and it's ripe for a Man-In-The-Middle; defeating the purpose of using TLS.

There is one legitimate use for InsecureSkipVerify: use it to connect to a host and grab its certificate, then immediately disconnect. If you setup your code to use InsecureSkipVerify, it's generally because you didn't set ServerName properly (it will need to come from an env var or something - don't belly-ache about this requirement... do it correctly).

In particular, if you use client certs and rely on them for authentication, you basically have a fake login that doesn't actually login any more. Refuse code that does InsecureSkipVerify, or you will learn what is wrong with it the hard way!

You need to set the Identity seed to that value:

CREATE TABLE orders
(
 id int IDENTITY(9586,1)
)

To alter an existing table:

ALTER TABLE orders ALTER COLUMN Id INT IDENTITY (9586, 1);

More info on CREATE TABLE (Transact-SQL) IDENTITY (Property)

Instal aws cli via homebrew package manager. It is the simplest and easiest method.

1. If you dont have homebrew installed , enter this command in your terminal

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2. Next 'brew install awscli'

This will install aws cli on your mac

I found myself in this situation when I tried to rebase a branch that was tracking a remote branch, and I was trying to rebase it on master. In this scenario if you try to rebase, you'll most likely find your branch diverged and it can create a mess that isn't for git nubees!

Let's say you are on branch my_remote_tracking_branch, which was branched from master

$ git status

# On branch my_remote_tracking_branch

nothing to commit (working directory clean)

And now you are trying to rebase from master as:

git rebase master

STOP NOW and save yourself some trouble! Instead, use merge as:

git merge master

Yes, you'll end up with extra commits on your branch. But unless you are up for "un-diverging" branches, this will be a much smoother workflow than rebasing. See this blog for a much more detailed explanation.

On the other hand, if your branch is only a local branch (i.e. not yet pushed to any remote) you should definitely do a rebase (and your branch will not diverge in this case).

Now if you are reading this because you already are in a "diverged" scenario due to such rebase, you can get back to the last commit from origin (i.e. in an un-diverged state) by using:

git reset --hard origin/my_remote_tracking_branch

This will help....

function setCookie(name,value,days) {
   var expires = "";
   if (days) {
       var date = new Date();
       date.setTime(date.getTime() + (days*24*60*60*1000));
       expires = "; expires=" + date.toUTCString();
   }
    document.cookie = name + "=" + (value || "")  + expires + "; path=/";
}

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

This is another way of viewing definition of stored procedure

SELECT OBJECT_DEFINITION (OBJECT_ID(N'Your_SP'))

In a python console, one can try the following 2 ways.

under the same work directory,

1. >> import helloworld

# if you have a variable x, you can print it in the IDLE.

>> helloworld.x

# if you have a function func, you can also call it like this.

>> helloworld.func()

2. >> runfile("./helloworld.py")

A singleton gets implemented using a static method. Static methods are avoided by people who do unit testing because they cannot be mocked or stubbed. Most people on this site are big proponents of unit testing. The generally most accepted convention to avoid them is using the inversion of control pattern.

I got clear idea from this statements.

1. Async void methods have different error-handling semantics. When an exception is thrown out of an async Task or async Task method, that exception is captured and placed on the Task object. With async void methods, there is no Task object, so any exceptions thrown out of an async void method will be raised directly on the SynchronizationContext(SynchronizationContext represents a location "where" code might be executed. ) that was active when the async void method started

Exceptions from an Async Void Method Can’t Be Caught with Catch

private async void ThrowExceptionAsync()
{
  throw new InvalidOperationException();
}
public void AsyncVoidExceptions_CannotBeCaughtByCatch()
{
  try
  {
    ThrowExceptionAsync();
  }
  catch (Exception)
  {
    // The exception is never caught here!
    throw;
  }
}

These exceptions can be observed using AppDomain.UnhandledException or a similar catch-all event for GUI/ASP.NET applications, but using those events for regular exception handling is a recipe for unmaintainability(it crashes the application).

2. Async void methods have different composing semantics. Async methods returning Task or Task can be easily composed using await, Task.WhenAny, Task.WhenAll and so on. Async methods returning void don’t provide an easy way to notify the calling code that they’ve completed. It’s easy to start several async void methods, but it’s not easy to determine when they’ve finished. Async void methods will notify their SynchronizationContext when they start and finish, but a custom SynchronizationContext is a complex solution for regular application code.

3. Async Void method useful when using synchronous event handler because they raise their exceptions directly on the SynchronizationContext, which is similar to how synchronous event handlers behave

For more details check this link https://msdn.microsoft.com/en-us/magazine/jj991977.aspx

check this, you should give arguments in msecs, Dont just send progress to seekTo(int)

and also check this getCurrentPostion() and getDuration().

You can do some calcuations, ie., convert progress in msec like msce = (progress/100)*getDuration() then do seekTo(msec)

Or else i have an easy idea, you don't need to change any code anywer else just add seekBar.setMax(mPlayer.getDuration()) once your media player is prepared.

and here is link exactly what you want seek bar update

One advantage your current approach does have is that it will raise an error if multiple rows are returned by the predicate. To reproduce that you can use.

SELECT @currentTerm = currentterm,
       @termID = termid,
       @endDate = enddate
FROM   table1
WHERE  iscurrent = 1

IF( @@ROWCOUNT <> 1 )
  BEGIN
      RAISERROR ('Unexpected number of matching rows',
                 16,
                 1)

      RETURN
  END  

Presumably, those columns are integer columns - which will be the reason as the result of the calculation will be of the same type.

e.g. if you do this:

SELECT 1 / 2

you will get 0, which is obviously not the real answer. So, convert the values to e.g. decimal and do the calculation based on that datatype instead.

e.g.

SELECT CAST(1 AS DECIMAL) / 2

gives 0.500000

yes you can (for version 2)

load like this inside your controller

 $this->load->library('../controllers/whathever');

and call the following method:

$this->whathever->functioname();

You could define the mainscreen and the other screen that you want to scroll up as fragments. When the button on the mainscreen is pushed, the fragment would send a message to the activity which would then replace the mainscreen with the one that you want to scroll up and animate the replacement.

A simple way is you can do as follows

public static String stripQueryStringAndHashFromPath(String uri) {
 return uri.replaceAll(("(\\?.*|\\#.*)"), "");
}

Here I am trying to help you do the job step by step: (this may be the answer to other questions)

1. Go to this address , down the page you can see something like "List of Release Packages". Based on your system and .net framework version choose the right one for you. for example if your want to use .NET Framework 4.6 on a 64-bit Windows, choose this version and download it.
2. Then install the file somewhere on your hard drive, just like any other software.
3. Open Visual studio and your project. Then in solution explorer, right-click on "References" and choose "add Reference...".
4. Click the browse button and choose where you install the previous file and go to .../bin/System.Data.SQLite.dll and click add and then OK buttons.

that is pretty much it. now you can use SQLite in your project. to use it in your project on the code level you may use this below example code:

1. make a connection string:

   string connectionString = @"URI=file:{the location of your sqlite database}";

2. establish a sqlite connection:

   SQLiteConnection theConnection = new SQLiteConnection(connectionString );

3. open the connection:

   theConnection.Open();

4. create a sqlite command:

   SQLiteCommand cmd = new SQLiteCommand(theConnection);

5. Make a command text, or better said your SQLite statement:

   cmd.CommandText = "INSERT INTO table_name(col1, col2) VALUES(val1, val2)";

6. Execute the command

   cmd.ExecuteNonQuery();

that is it.

Bitbucket - Their plans seem to be the best. They give you way more than GitHub do for free accounts - in fact, I'm still only using the free plan - no need to sign up to the paid ones; plus the interface is almost identical to GitHub.

A repository on Bitbucket can have up to five private users with unlimited public or private repositories - the only thing you seem to be paying for with the paid accounts are more users to access your private repositories.

You're passing the same model to the partial view as is being passed to the main view, and they are different types. The model is a DbSet of Notes, where you need to pass in a single Note.

You can do this by adding a parameter, which I'm guessing as it's the create form would be a new Note

@Html.Partial("_CreateNote", new QuickNotes.Models.Note())

The key is that they allow concurrent access and modification safely. They're commonly used as counters in a multithreaded environment - before their introduction this had to be a user written class that wrapped up the various methods in synchronized blocks.

I stumble upon this question and it grabbed my interest. The accepted answer is completely correct, but I thought I do provide my findings at JVM byte code level to explain why the OP encounter the ClassCastException.

I have the code which is pretty much the same as OP's code:

public static <T> T convertInstanceOfObject(Object o) {
    try {
       return (T) o;
    } catch (ClassCastException e) {
        return null;
    }
}

public static void main(String[] args) {
    String k = convertInstanceOfObject(345435.34);
    System.out.println(k);
}

and the corresponding byte code is:

public static <T> T convertInstanceOfObject(java.lang.Object);
    Code:
       0: aload_0
       1: areturn
       2: astore_1
       3: aconst_null
       4: areturn
    Exception table:
       from    to  target type
           0     1     2   Class java/lang/ClassCastException

  public static void main(java.lang.String[]);
    Code:
       0: ldc2_w        #3                  // double 345435.34d
       3: invokestatic  #5                  // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
       6: invokestatic  #6                  // Method convertInstanceOfObject:(Ljava/lang/Object;)Ljava/lang/Object;
       9: checkcast     #7                  // class java/lang/String
      12: astore_1
      13: getstatic     #8                  // Field java/lang/System.out:Ljava/io/PrintStream;
      16: aload_1
      17: invokevirtual #9                  // Method java/io/PrintStream.println:(Ljava/lang/String;)V
      20: return

Notice that checkcast byte code instruction happens in the main method not the convertInstanceOfObject and convertInstanceOfObject method does not have any instruction that can throw ClassCastException. Because the main method does not catch the ClassCastException hence when you execute the main method you will get a ClassCastException and not the expectation of printing null.

Now I modify the code to the accepted answer:

public static <T> T convertInstanceOfObject(Object o, Class<T> clazz) {
        try {
            return clazz.cast(o);
        } catch (ClassCastException e) {
            return null;
        }
    }
    public static void main(String[] args) {
        String k = convertInstanceOfObject(345435.34, String.class);
        System.out.println(k);
    }

The corresponding byte code is:

public static <T> T convertInstanceOfObject(java.lang.Object, java.lang.Class<T>);
    Code:
       0: aload_1
       1: aload_0
       2: invokevirtual #2                  // Method java/lang/Class.cast:(Ljava/lang/Object;)Ljava/lang/Object;
       5: areturn
       6: astore_2
       7: aconst_null
       8: areturn
    Exception table:
       from    to  target type
           0     5     6   Class java/lang/ClassCastException

  public static void main(java.lang.String[]);
    Code:
       0: ldc2_w        #4                  // double 345435.34d
       3: invokestatic  #6                  // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
       6: ldc           #7                  // class java/lang/String
       8: invokestatic  #8                  // Method convertInstanceOfObject:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
      11: checkcast     #7                  // class java/lang/String
      14: astore_1
      15: getstatic     #9                  // Field java/lang/System.out:Ljava/io/PrintStream;
      18: aload_1
      19: invokevirtual #10                 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
      22: return

Notice that there is an invokevirtual instruction in the convertInstanceOfObject method that calls Class.cast() method which throws ClassCastException which will be catch by the catch(ClassCastException e) bock and return null; hence, "null" is printed to console without any exception.

I recently ran into this, and it ended up being because I had a convert statement on a null variable. Since that was causing errors, the entire print statement was rendering as null, and not printing at all.

Example - This will fail:

declare @myID int=null
print 'First Statement: ' + convert(varchar(4), @myID)

Example - This will print:

declare @myID int=null
print 'Second Statement: ' +  coalesce(Convert(varchar(4), @myID),'@myID is null')

I had this issue running VS 2017, on build I was getting the error that the 'root element was missing'. What solved it for me was going to Tools > Nuget Package Manager > Package Manager Settings > General > Clear all Nuget Caches. After doing that I ran the build again and it was fixed.

Update for Java 8 and higher

You can now simply do Instant.parse("2015-04-28T14:23:38.521Z") and get the correct thing now, especially since you should be using Instant instead of the broken java.util.Date with the most recent versions of Java.

You should be using DateTimeFormatter instead of SimpleDateFormatter as well.

Original Answer:

The explanation below is still valid as as what the format represents. But it was written before Java 8 was ubiquitous so it uses the old classes that you should not be using if you are using Java 8 or higher.

This works with the input with the trailing Z as demonstrated:

In the pattern the T is escaped with ' on either side.

The pattern for the Z at the end is actually XXX as documented in the JavaDoc for SimpleDateFormat, it is just not very clear on actually how to use it since Z is the marker for the old TimeZone information as well.

Q2597083.java

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class Q2597083
{
    /**
     * All Dates are normalized to UTC, it is up the client code to convert to the appropriate TimeZone.
     */
    public static final TimeZone UTC;

    /**
     * @see <a href="http://en.wikipedia.org/wiki/ISO_8601#Combined_date_and_time_representations">Combined Date and Time Representations</a>
     */
    public static final String ISO_8601_24H_FULL_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";

    /**
     * 0001-01-01T00:00:00.000Z
     */
    public static final Date BEGINNING_OF_TIME;

    /**
     * 292278994-08-17T07:12:55.807Z
     */
    public static final Date END_OF_TIME;

    static
    {
        UTC = TimeZone.getTimeZone("UTC");
        TimeZone.setDefault(UTC);
        final Calendar c = new GregorianCalendar(UTC);
        c.set(1, 0, 1, 0, 0, 0);
        c.set(Calendar.MILLISECOND, 0);
        BEGINNING_OF_TIME = c.getTime();
        c.setTime(new Date(Long.MAX_VALUE));
        END_OF_TIME = c.getTime();
    }

    public static void main(String[] args) throws Exception
    {

        final SimpleDateFormat sdf = new SimpleDateFormat(ISO_8601_24H_FULL_FORMAT);
        sdf.setTimeZone(UTC);
        System.out.println("sdf.format(BEGINNING_OF_TIME) = " + sdf.format(BEGINNING_OF_TIME));
        System.out.println("sdf.format(END_OF_TIME) = " + sdf.format(END_OF_TIME));
        System.out.println("sdf.format(new Date()) = " + sdf.format(new Date()));
        System.out.println("sdf.parse(\"2015-04-28T14:23:38.521Z\") = " + sdf.parse("2015-04-28T14:23:38.521Z"));
        System.out.println("sdf.parse(\"0001-01-01T00:00:00.000Z\") = " + sdf.parse("0001-01-01T00:00:00.000Z"));
        System.out.println("sdf.parse(\"292278994-08-17T07:12:55.807Z\") = " + sdf.parse("292278994-08-17T07:12:55.807Z"));
    }
}

Produces the following output:

sdf.format(BEGINNING_OF_TIME) = 0001-01-01T00:00:00.000Z
sdf.format(END_OF_TIME) = 292278994-08-17T07:12:55.807Z
sdf.format(new Date()) = 2015-04-28T14:38:25.956Z
sdf.parse("2015-04-28T14:23:38.521Z") = Tue Apr 28 14:23:38 UTC 2015
sdf.parse("0001-01-01T00:00:00.000Z") = Sat Jan 01 00:00:00 UTC 1
sdf.parse("292278994-08-17T07:12:55.807Z") = Sun Aug 17 07:12:55 UTC 292278994

If you know the file is in your current directory, I would use:

ls -lt | head

This lists your most recently modified files and directories in order. In fact, I use it so much I have it aliased to 'lh'.

Dates comparison:

var str1  = document.getElementById("Fromdate").value;
var str2  = document.getElementById("Todate").value;
var dt1   = parseInt(str1.substring(0,2),10); 
var mon1  = parseInt(str1.substring(3,5),10);
var yr1   = parseInt(str1.substring(6,10),10); 
var dt2   = parseInt(str2.substring(0,2),10); 
var mon2  = parseInt(str2.substring(3,5),10); 
var yr2   = parseInt(str2.substring(6,10),10); 
var date1 = new Date(yr1, mon1, dt1); 
var date2 = new Date(yr2, mon2, dt2); 

if(date2 < date1)
{
   alert("To date cannot be greater than from date");
   return false; 
} 
else 
{ 
   alert("Submitting ...");
   document.form1.submit(); 
} 

Use percent encoding. Modern browsers will take care of display & paste issues and make it human-readable. E. g. http://ko.wikipedia.org/wiki/????:??

Edit: when you copy such an url in Firefox, the clipboard will hold the percent-encoded form (which is usually a good thing), but if you copy only a part of it, it will remain unencoded.

SHA stands for Secure Hash Algorithm while AES stands for Advanced Encryption Standard. So SHA is a suite of hashing algorithms. AES on the other hand is a cipher which is used to encrypt. SHA algorithms (SHA-1, SHA-256 etc...) will take an input and produce a digest (hash), this is typically used in a digital signing process (produce a hash of some bytes and sign with a private key).

The error you are getting is either because you are doing TO_DATE on a column that's already a date, and you're using a format mask that is different to your nls_date_format parameter[1] or because the event_occurrence column contains data that isn't a number.

You need to a) correct your query so that it's not using TO_DATE on the date column, and b) correct your data, if event_occurrence is supposed to be just numbers.

And fix the datatype of that column to make sure you can only store numbers.

[1] What Oracle does when you do: TO_DATE(date_column, non_default_format_mask) is: TO_DATE(TO_CHAR(date_column, nls_date_format), non_default_format_mask)

Generally, the default nls_date_format parameter is set to dd-MON-yy, so in your query, what is likely to be happening is your date column is converted to a string in the format dd-MON-yy, and you're then turning it back to a date using the format MMDD. The string is not in this format, so you get an error.

There is also Jaunt Java Web Scraping & JSON Querying - http://jaunt-api.com

For me, I used margin-left: auto; which is more responsive with horizontal resizing.

List membersList = Arrays.asList(membersArray);

returns immutable list, what you need to do is

new ArrayList<>(Arrays.asList(membersArray)); to make it mutable