Below is the code that implements custom vertical scrollbar. The important detail here is to know when scrollbar is needed by calculating how much space is consumed by the controls that you add to the panel.

panelUserInput.SuspendLayout();
panelUserInput.Controls.Clear();
panelUserInput.AutoScroll = false;
panelUserInput.VerticalScroll.Visible = false;

// here you'd be adding controls

int x = 20, y = 20, height = 0;
for (int inx = 0; inx < numControls; inx++ )
{
    // this example uses textbox control
    TextBox txt = new TextBox();
    txt.Location = new System.Drawing.Point(x, y);
    // add whatever details you need for this control
    // before adding it to the panel
    panelUserInput.Controls.Add(txt);
    height = y + txt.Height;
    y += 25;
}
if (height > panelUserInput.Height)
{
    VScrollBar bar = new VScrollBar();
    bar.Dock = DockStyle.Right;
    bar.Scroll += (sender, e) => { panelUserInput.VerticalScroll.Value =  bar.Value; };
    bar.Top = 0;
    bar.Left = panelUserInput.Width - bar.Width;
    bar.Height = panelUserInput.Height;
    bar.Visible = true;
    panelUserInput.Controls.Add(bar);
}
panelUserInput.ResumeLayout();

// then update the form
this.PerformLayout();

My answer probably sucks compared to the real gurus out there, but using some simple math, string slicing, find and urllib, this little script will create a list containing link elements. I test google and my output seems right. Hope it helps!

import urllib
test = urllib.urlopen("http://www.google.com").read()
sane = 0
needlestack = []
while sane == 0:
  curpos = test.find("href")
  if curpos >= 0:
    testlen = len(test)
    test = test[curpos:testlen]
    curpos = test.find('"')
    testlen = len(test)
    test = test[curpos+1:testlen]
    curpos = test.find('"')
    needle = test[0:curpos]
    if needle.startswith("http" or "www"):
        needlestack.append(needle)
  else:
    sane = 1
for item in needlestack:
  print item

You can use a subquery:

SELECT *
FROM terms
WHERE id IN (SELECT term_id FROM terms_relation WHERE taxonomy='categ');

and if you need to show all columns from both tables:

SELECT t.*, tr.*
FROM terms t, terms_relation tr
WHERE t.id = tr.term_id
AND tr.taxonomy='categ'

The error means there are some methods of the class that aren't implemented. You cannot instantiate such a class, so there isn't anything you can do, other than implement all of the methods of the class.

On the other hand, a common pattern is to instantiate a concrete class and assign it to a pointer of an abstrate base class:

class Abstract { /* stuff */ 4};
class Derived : virtual public Abstract { /* implement Abstract's methods */ };

Abstract* pAbs = new Derived; // OK

Just an aside, to avoid memory management issues with the above line, you could consider using a smart pointer, such as an `std::unique_ptr:

std::unique_ptr<Abstract> pAbs(new Derived);

This way is comparatively more easy

SELECT doc_id,serial_number,status FROM date_time ORDER BY  date_time DESC LIMIT 0,1;

Update for Java 8 and later

• isAfter()
• isBefore()
• isEqual()
• compareTo()

These methods exists in LocalDate, LocalTime, and LocalDateTime classes.

Those classes are built into Java 8 and later. Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP (see How to use…).

This worked for me.

app.get('/', function (req, res) {

    res.header("Access-Control-Allow-Origin", "*");
    res.send('hello world')
})

You can change * to fit your needs. Hope this can help.

You can use the following steps, its worked for me to drop table with constraint,solution already explained in the above comment, i just added screen shot for that -

I think Maven gets a bad rap because it imposes structure on your project, whereas other tools such as Ant allow you to completely define the structure any way you wish. Agreed also that the documentation is bad, but I think primarily the bad rap that Maven gets is because people are so used to Ant.

To Start Tomcat7 Service :

• Open cmd, go to bin directory within "Apache Tomcat 7" folder. You will see some this like C:\..\bin>

• Enter above command to start the service: C:\..\bin>service.bat install. The service will get started now.

• Enter above command to start tomcat7w monitory service. If you have issue with starting the tomcat7 service then remove the service with command : C:\..\bin>tomcat7 //DS//Tomcat7

• Now the service will no longer exist. Try the install command again, now the service will get installed and started: C:\..\bin>tomcat7w \\MS\tomcat7w

• You will see the tomcat 7 icon in the system tray. Now, the tomcat7 service and tomcat7w will start automatically when the windows get start.

Use this

SELECT * 
FROM TableToSearch 
WHERE NOT REGEXP_LIKE(ColumnToSearch, '^-?[0-9]+(\.[0-9]+)?$');

Do the loop in the normal way, the java.util.ConcurrentModificationException is an error related to the elements that are accessed.

So try:

for(int i = 0; i < list.size(); i++){
    lista.get(i).action();
}

If you don't want to force a declaration of a variable that is set and checked on each subtest, then adding this to a SuperTest could do:

public abstract class SuperTest {

    private static final ConcurrentHashMap<Class, Boolean> INITIALIZED = new ConcurrentHashMap<>();
    protected final boolean initialized() {
        final boolean[] absent = {false};
        INITIALIZED.computeIfAbsent(this.getClass(), (klass)-> {
            return absent[0] = true;
        });
        return !absent[0];
    }
}



public class SubTest extends SuperTest {
    @Before
    public void before() {
        if ( super.initialized() ) return;

         ... magic ... 
    }

}

Do not use "each". It is used for operations and changes in the same element. Use "map" to extract data from the element body and using it somewhere else.

This solution is (only) for SQL Server 2005

You guys are lifesavers, but as @Dan Mork said, you need to add EXEC to the mix. What was tripping me up was:

• 'EXEC ' before the Proc Name
• Commas in between Params
• Chopping off '@' on the Param Definitions (not sure that bit is required though).

:

context.Database.SqlQuery<EntityType>(
    "EXEC ProcName @param1, @param2", 
    new SqlParameter("param1", param1), 
    new SqlParameter("param2", param2)
);

1. clang has advantages in error reporting & recovery.

   $ clang errors.c
   errors.c:36:21: warning: result of comparison against a string literal is unspecified (use strcmp instead)
           if (args[i] == "&") //WARNING HERE
                       ^~ ~~~
               strcmp( ,     ) == 0
   errors.c:38:26: warning: result of comparison against a string literal is unspecified (use strcmp instead)
           else if (args[i] == "<") //WARNING HERE
                            ^~ ~~~
                    strcmp( ,     ) == 0
   errors.c:44:26: warning: result of comparison against a string literal is unspecified (use strcmp instead)
           else if (args[i] == ">") //WARNING HERE
                            ^~ ~~~
                    strcmp( ,     ) == 0
   

   It suggests to replace x == y by strcmp(x,y) == 0.

2. gengetopt writes command-line option parser for you.

In the debugger you don't need to add back slashes, the input field understands the special chars.

In java code you need to escape the special chars

In your config file give the relative path

ConnectionString = "Data Source=|DataDirectory|\Database.sdf";

Change the DataDirectory to your executable path

string path = AppDomain.CurrentDomain.BaseDirectory;
AppDomain.CurrentDomain.SetData("DataDirectory", path);

If you are using EntityFramework, then you can set the DataDirectory path in your Context class

 BigDecimal decPrec = (BigDecimal)yo.get("Avg");
 decPrec = decPrec.setScale(5, RoundingMode.CEILING);
 String value= String.valueOf(decPrec);

This way you can set specific precision of a BigDecimal.

The value of decPrec was 1.5726903423607562595809913132345426 which is rounded off to 1.57267.

You can also use sqlcmd mode for this (enable this on the "Query" menu in Management Studio).

:setvar dbname "TEST" 

CREATE DATABASE $(dbname)
GO
ALTER DATABASE $(dbname) SET COMPATIBILITY_LEVEL = 90
GO
ALTER DATABASE $(dbname) SET RECOVERY SIMPLE 
GO

EDIT:

Check this MSDN article to set parameters via the SQLCMD tool.

Developer point of view
If you are in development mode (like in the original question), the best approach is to disable caching in the browser via HTML meta tags. To make this approach universal you must insert at least three meta tags as shown below.

<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />

In this way, you as a developer, only need to refresh the page to see the changes. But do not forget to comment that code when in production, after all caching is a good thing for your clients.

Production Mode
Because in production you will allow caching and your clients do not need to know how to force a full reload or any other trick, you must warranty the browser will load the new file. And yes, in this case, the best approach I know is to change the name of the file.

I would recommend 422. It's not part of the main HTTP spec, but it is defined by a public standard (WebDAV) and it should be treated by browsers the same as any other 4xx status code.

From RFC 4918:

The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.

In order to resolve this issue for WebApps added to the home screen, both of the top voted workarounds need to be followed. Caching needs to be turned off on the webserver to prevent new requests from being cached going forward and some random input needs to be added to every post request in order for requests that have already been cached to go through. Please refer to my post:

iOS6 - Is there a way to clear cached ajax POST requests for webapp added to home screen?

WARNING: to anyone who implemented a workaround by adding a timestamp to their requests without turning off caching on the server. If your app is added to the home screen, EVERY post response will now be cached, clearing safari cache doesn't clear it and it doesn't seem to expire. Unless someone has a way to clear it, this looks like a potential memory leak!

Downside of all answers here is that they use static field names, so I wrote an adjusted version in OOP style. Assumed you are using getter methods you could directly use this Class and use the field name as parameter. Probably someone find it useful.

class CustomSort{

    public $field = '';

    public function cmp($a, $b)
    {
        /**
         * field for order is in a class variable $field
         * using getter function with naming convention getVariable() we set first letter to uppercase
         * we use variable variable names - $a->{'varName'} would directly access a field
         */
        return strcmp($a->{'get'.ucfirst($this->field)}(), $b->{'get'.ucfirst($this->field)}());
    }

    public function sortObjectArrayByField($array, $field)
    {
        $this->field = $field;
        usort($array, array("Your\Namespace\CustomSort", "cmp"));;
        return $array;
    }
} 

JQuery and PHP

In PHP file "contenido.php":

<?php
$mURL = $_GET['url'];

echo file_get_contents($mURL);
?>

In html:

<script type="text/javascript" src="js/jquery/jquery.min.js"></script>
<script type="text/javascript">
    function getContent(pUrl, pDivDestino){
        var mDivDestino = $('#'+pDivDestino);

        $.ajax({
            type : 'GET',
            url : 'contenido.php',
            dataType : 'html',
            data: {
                url : pUrl
            },
            success : function(data){                                               
                mDivDestino.html(data);
            }   
        });
    }
</script>

<a href="#" onclick="javascript:getContent('http://www.google.com/', 'contenido')">Get Google</a>
<div id="contenido"></div>

Form only once

If your goal is to diallow multiple instaces of a form, consider following ...

public class MyForm : Form
{
    private static MyForm alreadyOpened = null;

    public MyForm()
    {
        // If the form already exists, and has not been closed
        if (alreadyOpened != null && !alreadyOpened.IsDisposed)
        {
            alreadyOpened.Focus();            // Bring the old one to top
            Shown += (s, e) => this.Close();  // and destroy the new one.
            return;
        }           

        // Otherwise store this one as reference
        alreadyOpened = this;  

        // Initialization
        InitializeComponent();
    }
}

You can find a recent servlet-api.jar in Tomcat 6 or 7 lib directory. If you don't have Tomcat on your machine, download the binary distribution of version 6 or 7 from http://tomcat.apache.org/download-70.cgi

0755 = User:rwx Group:r-x World:r-x

0750 = User:rwx Group:r-x World:--- (i.e. World: no access)

r = read
w = write
x = execute (traverse for directories)

I want to let everyone know that sometimes this error just is a result of some weird memory error. Restart your pc and go back into visual studio and it will be gone!! Bizarre! Try that before you start playing around with your web config file etc like I did!!!! ;-)

import datetime
import numpy as np
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt

# Create the PdfPages object to which we will save the pages:
# The with statement makes sure that the PdfPages object is closed properly at
# the end of the block, even if an Exception occurs.
with PdfPages('multipage_pdf.pdf') as pdf:
    plt.figure(figsize=(3, 3))
    plt.plot(range(7), [3, 1, 4, 1, 5, 9, 2], 'r-o')
    plt.title('Page One')
    pdf.savefig()  # saves the current figure into a pdf page
    plt.close()

    plt.rc('text', usetex=True)
    plt.figure(figsize=(8, 6))
    x = np.arange(0, 5, 0.1)
    plt.plot(x, np.sin(x), 'b-')
    plt.title('Page Two')
    pdf.savefig()
    plt.close()

    plt.rc('text', usetex=False)
    fig = plt.figure(figsize=(4, 5))
    plt.plot(x, x*x, 'ko')
    plt.title('Page Three')
    pdf.savefig(fig)  # or you can pass a Figure object to pdf.savefig
    plt.close()

    # We can also set the file's metadata via the PdfPages object:
    d = pdf.infodict()
    d['Title'] = 'Multipage PDF Example'
    d['Author'] = u'Jouni K. Sepp\xe4nen'
    d['Subject'] = 'How to create a multipage pdf file and set its metadata'
    d['Keywords'] = 'PdfPages multipage keywords author title subject'
    d['CreationDate'] = datetime.datetime(2009, 11, 13)
    d['ModDate'] = datetime.datetime.today()

The database I did most of my work on used 'Y' / 'N' as booleans. With that implementation, you can pull off some tricks like:

1. Count rows that are true:
   SELECT SUM(CASE WHEN BOOLEAN_FLAG = 'Y' THEN 1 ELSE 0) FROM X

2. When grouping rows, enforce "If one row is true, then all are true" logic:
   SELECT MAX(BOOLEAN_FLAG) FROM Y
   Conversely, use MIN to force the grouping false if one row is false.

I solved the same problem in Vagrant. I increased the value of memory_limit and delete composer cache: sudo rm -R ~/.composer and finally vagrant reload.

To access an array member you use $array['KEY'];

To access an object member you use $obj->KEY;

To access an object member inside an array of objects:
$array[0] // Get the first object in the array
$array[0]->KEY // then access its key

You may also loop over an array of objects like so:

foreach ($arrayOfObjs as $key => $object) {
    echo $object->object_property;
}

Think of an array as a collection of things. It's a bag where you can store your stuff and give them a unique id (key) and access them (or take the stuff out of the bag) using that key. I want to keep things simple here, but this bag can contain other bags too :)

Update (this might help someone understand better):

An array contains 'key' and 'value' pairs. Providing a key for an array member is optional and in this case it is automatically assigned a numeric key which starts with 0 and keeps on incrementing by 1 for each additional member. We can retrieve a 'value' from the array by it's 'key'.

So we can define an array in the following ways (with respect to keys):

First method:

$colorPallete = ['red', 'blue', 'green'];

The above array will be assigned numeric keys automatically. So the key assigned to red will be 0, for blue 1 and so on.

Getting values from the above array:

$colorPallete[0]; // will output 'red'
$colorPallete[1]; // will output 'blue'
$colorPallete[2]; // will output 'green'

Second method:

$colorPallete = ['love' => 'red', 'trust' => 'blue', 'envy' => 'green']; // we expliicitely define the keys ourself.

Getting values from the above array:

$colorPallete['love']; // will output 'red'
$colorPallete['trust']; // will output 'blue'
$colorPallete['envy']; // will output 'green'

The ld returned 1 exit status error is the consequence of previous errors. In your example there is an earlier error - undefined reference to 'clrscr' - and this is the real one. The exit status error just signals that the linking step in the build process encountered some errors. Normally exit status 0 means success, and exit status > 0 means errors.

When you build your program, multiple tools may be run as separate steps to create the final executable. In your case one of those tools is ld, which first reports the error it found (clrscr reference missing), and then it returns the exit status. Since the exit status is > 0, it means an error and is reported.

In many cases tools return as the exit status the number of errors they encountered. So if ld tool finds two errors, its exit status would be 2.

If you don't care about the order...

def split(list):  
    return list[::2], list[1::2]

list[::2] gets every second element in the list starting from the 0th element.
list[1::2] gets every second element in the list starting from the 1st element.

For your command you also could refer to the following example:

sudo sh -c 'whoami; whoami'

Answer if you only want to use for each loop ..

for (WebElement s : options) {
    int i = options.indexOf(s);
    System.out.println(options.get(i).getText());
}

Try put this before send e-mail

ServicePointManager.ServerCertificateValidationCallback = 
        delegate(object s, X509Certificate certificate, X509Chain chain,
        SslPolicyErrors sslPolicyErrors) { return true; };

Remenber to add the using libs!

No, there is no other way than

def dictMinus(dct, val):
   copy = dct.copy()
   del copy[val]
   return copy

However, often creating copies of only slightly altered dictionaries is probably not a good idea because it will result in comparatively large memory demands. It is usually better to log the old dictionary(if even necessary) and then modify it.

Windows 7 64-bit, with both Python3.4 and Python2.7 installed at some point :)

I'm using Py.exe to route to Py2 or Py3 depending on the script's needs - but I previously improperly uninstalled Python27 before.

Py27 was removed manually from C:\python\Python27 (the folder Python27 was deleted by me previously)

Upon re-installing Python27, it gave the above error you specify.
It would always back out while trying to 'remove shortcuts' during the installation process.

I placed a copy of Python27 back in that original folder, at C:\Python\Python27, and re-ran the same failing Python27 installer. It was happy locating those items and removing them, and proceeded with the install.

This is not the answer that addresses registry key issues (others mention that) but it is somewhat of a workaround if you know of previous installations that were improperly removed.

You could have some insight to this by opening "regedit" and searching for "Python27" - a registry key appeared in my command-shell Cache pointing at c:\python\python27\ (which had been removed and was not present when searching in the registry upon finding it).

That may help point to previously improperly removed installations.

Good luck!

This should work:

import java.util.Scanner;

public class Test {
    public static void main(String... args) throws Throwable {
        Scanner kb = new Scanner(System.in);

        int num1;
        System.out.print("Enter number 1: ");
        while (true)
            try {
                num1 = Integer.parseInt(kb.nextLine());
                break;
            } catch (NumberFormatException nfe) {
                System.out.print("Try again: ");
            }

        int num2;
        do {
            System.out.print("Enter number 2: ");
            while (true)
                try {
                    num2 = Integer.parseInt(kb.nextLine());
                    break;
                } catch (NumberFormatException nfe) {
                    System.out.print("Try again: ");
                }
        } while (num2 < num1);

    }
}

If you define words as "sequences of characters delimited by space"... Use strrpos() to find the last space in the string, shorten to that position, trim the result.

Imports System.Data

Imports System.Data.SqlClient

Public Class Form2

Dim myconnection As SqlConnection

Dim mycommand As SqlCommand

Dim dr As SqlDataReader

Dim dr1 As SqlDataReader

Dim ra As Integer


Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click


    myconnection = New SqlConnection("server=localhost;uid=root;pwd=;database=simple")

    'you need to provide password for sql server

    myconnection.Open()

    mycommand = New SqlCommand("insert into tbl_cus([name],[class],[phone],[address]) values ('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "')", myconnection)

    mycommand.ExecuteNonQuery()

    MessageBox.Show("New Row Inserted" & ra)

    myconnection.Close()

End Sub

End Class

This approach works well:

gci C:\Projects *.config -recurse | ForEach {
  (Get-Content $_ | ForEach {$_ -replace "old", "new"}) | Set-Content $_ 
}

• Change "old" and "new" to their corresponding values (or use variables).
• Don't forget the parenthesis -- without which you will receive an access error.

I suspect you're only reporting the last error in a stack like this:

ORA-04068: existing state of packages has been discarded
ORA-04061: existing state of package body "schema.package" has been invalidated
ORA-04065: not executed, altered or dropped package body "schema.package"
ORA-06508: PL/SQL: could not find program unit being called: "schema.package"

If so, that's because your package is stateful:

The values of the variables, constants, and cursors that a package declares (in either its specification or body) comprise its package state. If a PL/SQL package declares at least one variable, constant, or cursor, then the package is stateful; otherwise, it is stateless.

When you recompile the state is lost:

If the body of an instantiated, stateful package is recompiled (either explicitly, with the "ALTER PACKAGE Statement", or implicitly), the next invocation of a subprogram in the package causes Oracle Database to discard the existing package state and raise the exception ORA-04068.

After PL/SQL raises the exception, a reference to the package causes Oracle Database to re-instantiate the package, which re-initializes it...

You can't avoid this if your package has state. I think it's fairly rare to really need a package to be stateful though, so you should revisit anything you have declared in the package, but outside a function or procedure, to see if it's really needed at that level. Since you're on 10g though, that includes constants, not just variables and cursors.

But the last paragraph from the quoted documentation means that the next time you reference the package in the same session, you won't get the error and it will work as normal (until you recompile again).

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

Using ~* can improve greatly on performance, with functionality of INSTR.

SELECT id FROM groups WHERE name ~* 'adm'

return rows with name that contains OR equals to 'adm'.

** -> "xampp->mysql->data" cut all files from data folder and paste to another folder

-> now restart mysql

-> paste all folders from your folder to myslq->data folder

and also paste ib_logfile0.ib_logfile1 , ibdata1 into data folder from your folder.

your database and your data is now available in phpmyadmin..**

The session.save(object) returns the id of the object, or you could alternatively call the id getter method after performing a save.

Save() return value:

Serializable save(Object object) throws HibernateException

Returns:

the generated identifier

Getter method example:

UserDetails entity:

@Entity
public class UserDetails {
    @Id
    @GeneratedValue
    private int id;
    private String name;

    // Constructor, Setters & Getters
}

Logic to test the id's :

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.getTransaction().begin();
UserDetails user1 = new UserDetails("user1");
UserDetails user2 = new UserDetails("user2");

//int userId = (Integer) session.save(user1); // if you want to save the id to some variable

System.out.println("before save : user id's = "+user1.getId() + " , " + user2.getId());

session.save(user1);
session.save(user2);

System.out.println("after save : user id's = "+user1.getId() + " , " + user2.getId());

session.getTransaction().commit();

Output of this code:

before save : user id's = 0 , 0

after save : user id's = 1 , 2

As per this output, you can see that the id's were not set before we save the UserDetails entity, once you save the entities then Hibernate set's the id's for your objects - user1 and user2

My cacerts file was totally empty. I solved this by copying the cacerts file off my windows machine (that's using Oracle Java 7) and scp'd it to my Linux box (OpenJDK).

cd %JAVA_HOME%/jre/lib/security/
scp cacerts mylinuxmachin:/tmp

and then on the linux machine

cp /tmp/cacerts /etc/ssl/certs/java/cacerts

It's worked great so far.

Adding more to Jason's more generalized way of retrieving the POST data or GET data

from flask_restful import reqparse

def parse_arg_from_requests(arg, **kwargs):
    parse = reqparse.RequestParser()
    parse.add_argument(arg, **kwargs)
    args = parse.parse_args()
    return args[arg]

form_field_value = parse_arg_from_requests('FormFieldValue')

Assuming you are looking for a method and not a magic function that already exists, there is frankly no better way. We could all write code snippets with clever tricks for limited character sets, but at the end of the day at somepoint you have to convert the characters.

The best approach for this conversion is to do so prior to the comparison. This allows you a good deal of flexibility when it comes to encoding schemes, which your actual comparison operator should be ignorant of.

You can of course 'hide' this conversion behind your own string function or class, but you still need to convert the strings prior to comparison.

    // Java program for reversing the linked list
    class LinkedList {

        static Node head;

        static class Node {

            int data;
            Node next;

            Node(int d) {
                data = d;
                next = null;
            }
        }

      //  Function to reverse the linked list 
        Node reverse(Node node) {
            Node prev = null;
            Node current = node;
            Node next = null;
            while (current != null) {
                next = current.next;
                current.next = prev;
                prev = current;
                current = next;
            }
            node = prev;
            return node;
        }




        // prints content of double linked list
        void printList(Node node) {
            while (node != null) {
                System.out.print(node.data + " ");
                node = node.next;
            }
        }


        public static void main(String[] args) {
            LinkedList list = new LinkedList();
            list.head = new Node(85);
            list.head.next = new Node(15);
            list.head.next.next = new Node(4);
            list.head.next.next.next = new Node(20);

            System.out.println("Given Linked list");
            list.printList(head);
            head = list.reverse(head);
            System.out.println("");
            System.out.println("Reversed linked list ");
            list.printList(head);
        }
    }


OUTPUT: -

Given Linked list
85 15 4 20 
Reversed linked list 
20 4 15 85 

Generally, this error comes because we don’t make default constructor.
But in my case:
The issue was coming only due to I have made used object class inside parent class.
This has wasted my whole day.

change them to rows

rows = zip(list1,list2,list3,list4,list5)

then just

import csv

with open(newfilePath, "w") as f:
    writer = csv.writer(f)
    for row in rows:
        writer.writerow(row)

string name = "Paul Creasey";
if (name.contains(" ")) {

}

I use the following format and works well.

robocopy \\SourceServer\Path \\TargetServer\Path filename.txt

to copy everything you can replace filename.txt with *.* and there are plenty of other switches to copy subfolders etc... see here: http://ss64.com/nt/robocopy.html

Check this:

                     if (
 MessageBox.Show(@"Are you Alright?", @"My Message Box",MessageBoxButtons.YesNo) == DialogResult.Yes)
                    {
                        //YES ---> Ok IM ALRIGHHT
                    }
                    else
                   {
                   //NO --->NO IM STUCK
                    }

Regards

Try this:

mail_accounts[0].encode("ascii")

According to others said, you cannot instantiate from abstract class. but it exist 2 way to use it. 1. make another non-abstact class that extends from abstract class. So you can instantiate from new class and use the attributes and methods in abstract class.

    public class MyCustomClass extends YourAbstractClass {

/// attributes, methods ,...
}

2. work with interfaces.

_{Just to add a bit more information.}

There is no way to query a database other than the current one. Because PostgreSQL loads database-specific system catalogs, it is uncertain how a cross-database query should even behave.

contrib/dblink allows cross-database queries using function calls. Of course, a client can also make simultaneous connections to different databases and merge the results on the client side.

PostgreSQL FAQ

Its an XML namespace. It is required when you use XHTML 1.0 or 1.1 doctypes or application/xhtml+xml mimetypes.

You should be using HTML5 doctype, then you don't need it for text/html. Better start from template like this :

<!DOCTYPE html>
<html>
    <head>
        <meta charset=utf-8 />
        <title>domcument title</title>
        <link rel="stylesheet" href="/stylesheet.css" type="text/css" />
    </head>
    <body>
            <!-- your html content -->
            <script src="/script.js"></script>
    </body>
</html>

When you have put your Doctype straight - do and validate you html and your css .
That usually will sove you layout issues.

Two suggestions:

1. Use std::deque instead of std::vector for better performance in your specific case and use the method std::deque::pop_front().
2. Rethink (I mean: delete) the & in std::vector<ScanRule>& topPriorityRules;

I had ran into similar problem today. Tried all the above solutions but didn't worked. So posting my solution here.

Don't forget to uncheck Tail-long Backup before restore

Hope it help others too!

settings.py

DATABASES = {
'default': {
    'ENGINE': 'django.db.backends.mysql',
    'NAME': 'django',
    'USER': 'root',
    'PASSWORD': '*****',
    'HOST': '***.***.***.***',
    'PORT': '3306',
    'OPTIONS': {
        'autocommit': True,
    },
}

}

then:

python manage.py migrate

if success will generate theses tables:

auth_group
auth_group_permissions
auth_permission
auth_user
auth_user_groups
auth_user_user_permissions
django_admin_log
django_content_type
django_migrations
django_session

and u will can use mysql.

this is a showcase example ,test on Django version 1.11.5: Django-pool-showcase

Please check the query without using a function:

declare @T table(Insurance varchar(max))

insert into @T values ('wezembeek-oppem')
insert into @T values ('roeselare')
insert into @T values ('BRUGGE')
insert into @T values ('louvain-la-neuve')

select (
       select upper(T.N.value('.', 'char(1)'))+
                lower(stuff(T.N.value('.', 'varchar(max)'), 1, 1, ''))+(CASE WHEN RIGHT(T.N.value('.', 'varchar(max)'), 1)='-' THEN '' ELSE ' ' END)
       from X.InsXML.nodes('/N') as T(N)
       for xml path(''), type
       ).value('.', 'varchar(max)') as Insurance
from 
  (
  select cast('<N>'+replace(
            replace(
                Insurance, 
                ' ', '</N><N>'),
            '-', '-</N><N>')+'</N>' as xml) as InsXML
  from @T
  ) as X

These functions should work.

// First, cache your array dimensions so you don't have to
//  access them during each iteration of your for loops.
int rowLength = array.length,       // array width (# of columns)
    colLength = array[0].length;    // array height (# of rows)

//     This is your function:
// Prints array elements row by row
var rowString = "";
for(int x = 0; x < rowLength; x++){     // x is the column's index
    for(int y = 0; y < colLength; y++){ // y is the row's index
        rowString += array[x][y];
    } System.out.println(rowString)
}

//      This is the one you want:
// Prints array elements column by column
var colString = "";
for(int y = 0; y < colLength; y++){      // y is the row's index
    for(int x = 0; x < rowLength; x++){  // x is the column's index
        colString += array[x][y];
    } System.out.println(colString)
}

In the first block, the inner loop iterates over each item in the row before moving to the next column.

In the second block (the one you want), the inner loop iterates over all the columns before moving to the next row.

tl;dr: Essentially, the for() loops in both functions are switched. That's it.

I hope this helps you to understand the logic behind iterating over 2-dimensional arrays.

Also, this works whether you have a string[,] or string[][]

I did it like this, a variation on Vadims code but to me a bit more readable:

' Returns TRUE if item is already contained in collection, otherwise FALSE

Public Function Contains(col As Collection, item As String) As Boolean

    Dim i As Integer

    For i = 1 To col.Count

    If col.item(i) = item Then
        Contains = True
        Exit Function
    End If

    Next i

    Contains = False

End Function

I had the same issue on Ubuntu(14.04) with Jupyter.

To solve it I've added the dot library to python sys.path

First: check if dot is installed,

Then: find his path whereis dot -> /local/notebook/miniconda2/envs/ik2/bin/dot

Finally in python script : sys.path.append("/local/notebook/miniconda2/envs/ik2/bin/dot")

Go to IIS -> Application Pool -> Advance Settings -> Enable 32-bit Applications

To restore a deleted and commited file:

git reset HEAD some/path
git checkout -- some/path

It was tested on Git version 1.7.5.4.

You need an assignment operator so that:

arrayOfAs[i] = A(3);

works as it should.

As your output results a double you should cast either completed variable or total variable or both to double while dividing.

So, the correct implmentation will be:

System.out.println((double)completed/total);

I also adopted imageio, but I found the following machinery useful for pre- and post-processing:

import imageio
import numpy as np

def imload(*a, **k):
    i = imageio.imread(*a, **k)
    i = i.transpose((1, 0, 2))  # x and y are mixed up for some reason...
    i = np.flip(i, 1)  # make coordinate system right-handed!!!!!!
    return i/255


def imsave(i, url, *a, **k):
    # Original order of arguments was counterintuitive. It should
    # read verbally "Save the image to the URL" — not "Save to the
    # URL the image."

    i = np.flip(i, 1)
    i = i.transpose((1, 0, 2))
    i *= 255

    i = i.round()
    i = np.maximum(i, 0)
    i = np.minimum(i, 255)

    i = np.asarray(i, dtype=np.uint8)

    imageio.imwrite(url, i, *a, **k)

The rationale is that I am using numpy for image processing, not just image displaying. For this purpose, uint8s are awkward, so I convert to floating point values ranging from 0 to 1.

When saving images, I noticed I had to cut the out-of-range values myself, or else I ended up with a really gray output. (The gray output was the result of imageio compressing the full range, which was outside of [0, 256), to values that were inside the range.)

There were a couple other oddities, too, which I mentioned in the comments.

You can only use dynamic keyword,

   dynamic obj = GetAnonymousType();

   Console.WriteLine(obj.Name);
   Console.WriteLine(obj.LastName);
   Console.WriteLine(obj.Age); 


   public static dynamic GetAnonymousType()
   {
       return new { Name = "John", LastName = "Smith", Age=42};
   }

But with dynamic type keyword you will loose compile time safety, IDE IntelliSense etc...

NullPointerException with JSP can also happen if:

A getter returns a non-public inner class.

This code will fail if you remove Getters's access modifier or make it private or protected.

JAVA:

package com.myPackage;
public class MyClass{ 
    //: Must be public or you will get:
    //: org.apache.jasper.JasperException: 
    //: java.lang.NullPointerException
    public class Getters{
        public String 
        myProperty(){ return(my_property); }
    };;

    //: JSP EL can only access functions:
    private Getters _get;
    public  Getters  get(){ return _get; }

    private String 
    my_property;

    public MyClass(String my_property){
        super();
        this.my_property    = my_property;
        _get = new Getters();
    };;
};;

JSP

<%@ taglib uri   ="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page import="com.myPackage.MyClass" %>
<%
    MyClass inst = new MyClass("[PROP_VALUE]");
    pageContext.setAttribute("my_inst", inst ); 
%><html lang="en"><body>
    ${ my_inst.get().myProperty() }
</body></html>

The way to do this without use of plugins is to make a subclass of google's OverlayView() method.

https://developers.google.com/maps/documentation/javascript/reference?hl=en#OverlayView

You make a custom function and apply it to the map.

function Label() { 
    this.setMap(g.map);
};

Now you prototype your subclass and add HTML nodes:

Label.prototype = new google.maps.OverlayView; //subclassing google's overlayView
Label.prototype.onAdd = function() {
        this.MySpecialDiv               = document.createElement('div');
        this.MySpecialDiv.className     = 'MyLabel';
        this.getPanes().overlayImage.appendChild(this.MySpecialDiv); //attach it to overlay panes so it behaves like markers

}

you also have to implement remove and draw functions as stated in the API docs, or this won't work.

Label.prototype.onRemove = function() {
... // remove your stuff and its events if any
}
Label.prototype.draw = function() {
      var position = this.getProjection().fromLatLngToDivPixel(this.get('position')); // translate map latLng coords into DOM px coords for css positioning
var pos = this.get('position');
            $('.myLabel')
            .css({
                'top'   : position.y + 'px',
                'left'  : position.x + 'px'
            })
        ;
}

That's the gist of it, you'll have to do some more work in your specific implementation.

If you can't find the password based on other answers that point to a default one, the log message wording in recent versions changed to

Using generated security password: <some UUID>

My try is combined solution.

string = string.replace(',', '.').replace(/[^\d\.]/g, "").replace(/\./, "x").replace(/\./g, "").replace(/x/, ".");
string = Math.round( parseFloat(string) * 100) / 100;

First line solution from here: regex replacing multiple periods in floating number . It replaces comma "," with dot "." ; Replaces first comma with x; Removes all dots and replaces x back to dot.

Second line cleans numbers after dot.

After spending the day I realized it was a simple change in Project Settings

File -> Project Settings... -> Build System -> Legacy Build System.

In a project setting, you will see Build System named drop down and in that drop down select Legacy Build System

Place your cursor after Apples, under Macro Tab, select Start Recording. Type the comma(,) character, space( ) character, and press End key, under Macro tab, select Stop Recording.

Ctrl+Shift+P for single playback.

function _formatDatetime(date: Date, format: string) {
   const _padStart = (value: number): string => value.toString().padStart(2, '0');
return format
    .replace(/yyyy/g, _padStart(date.getFullYear()))
    .replace(/dd/g, _padStart(date.getDate()))
    .replace(/mm/g, _padStart(date.getMonth() + 1))
    .replace(/hh/g, _padStart(date.getHours()))
    .replace(/ii/g, _padStart(date.getMinutes()))
    .replace(/ss/g, _padStart(date.getSeconds()));
}
function isValidDate(d: Date): boolean {
    return !isNaN(d.getTime());
}
export function formatDate(date: any): string {
    var datetime = new Date(date);
    return isValidDate(datetime) ? _formatDatetime(datetime, 'yyyy-mm-dd hh:ii:ss') : '';
}

After adding JTextArea into JScrollPane here:

scroll = new JScrollPane(display);

You don't need to add it again into other container like you do:

middlePanel.add(display);

Just remove that last line of code and it will work fine. Like this:

    middlePanel=new JPanel();
    middlePanel.setBorder(new TitledBorder(new EtchedBorder(), "Display Area"));

    // create the middle panel components

    display = new JTextArea(16, 58);
    display.setEditable(false); // set textArea non-editable
    scroll = new JScrollPane(display);
    scroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

    //Add Textarea in to middle panel
    middlePanel.add(scroll);

JScrollPane is just another container that places scrollbars around your component when its needed and also has its own layout. All you need to do when you want to wrap anything into a scroll just pass it into JScrollPane constructor:

new JScrollPane( myComponent ) 

or set view like this:

JScrollPane pane = new JScrollPane ();
pane.getViewport ().setView ( myComponent );

Additional:

Here is fully working example since you still did not get it working:

public static void main ( String[] args )
{
    JPanel middlePanel = new JPanel ();
    middlePanel.setBorder ( new TitledBorder ( new EtchedBorder (), "Display Area" ) );

    // create the middle panel components

    JTextArea display = new JTextArea ( 16, 58 );
    display.setEditable ( false ); // set textArea non-editable
    JScrollPane scroll = new JScrollPane ( display );
    scroll.setVerticalScrollBarPolicy ( ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS );

    //Add Textarea in to middle panel
    middlePanel.add ( scroll );

    // My code
    JFrame frame = new JFrame ();
    frame.add ( middlePanel );
    frame.pack ();
    frame.setLocationRelativeTo ( null );
    frame.setVisible ( true );
}

And here is what you get:

SELECT  *  FROM Table1 
WHERE MAKE+MODEL+[Serial Number]  not in
    (select make+model+[serial number] from Table2 
     WHERE make+model+[serial number] IS NOT NULL)

That worked for me, where make+model+[serial number] was one field name

How can it ever be longer than

tmp = my_list[indexOfPwd2]
my_list[indexOfPwd2] = my_list[indexOfPwd2 + 1]
my_list[indexOfPwd2 + 1] = tmp

That's just a plain swap using temporary storage.

I also like to build locators from up to bottom like:

//div[contains(@class,'btn-group')][./button[contains(.,'Arcade Reader')]]/button[@name='settings']

It's pretty simple, as we just search btn-group with button[contains(.,'Arcade Reader')] and get it's button[@name='settings']

That's just another option to build xPath locators

What is the profit of searching wrapper element: you can return it by method (example in java) and just build selenium constructions like:

getGroupByName("Arcade Reader").find("button[name='settings']");
getGroupByName("Arcade Reader").find("button[name='delete']");

or even simplify more

getGroupButton("Arcade Reader", "delete").click();

In my case, I download the project from GitHub and the Gradle file was missing. So I just create a new project with success build. Then copy-paste the Gradle missing file. And re-build the project is working for me.

As has been said in other answers, the correct conversion specifier is "%Lf".

You might want to turn on the format warning by using -Wformat (or -Wall, which includes -Wformat) in the gcc invocation

$ gcc source.c
$ gcc -Wall source.c
source.c: In function `main`:
source.c:5: warning: format "%lf" expects type `double`, but argument 2 has type `long double`
source.c:5: warning: format "%le" expects type `double`, but argument 3 has type `long double`
$

Pandas uses matplotlib as a library for basic plots. The easiest way in your case will using the following:

import pandas as pd
import numpy as np

#creating sample data 
sample_data={'col_name_1':np.random.rand(20),
      'col_name_2': np.random.rand(20)}
df= pd.DataFrame(sample_data)
df.plot(x='col_name_1', y='col_name_2', style='o')

However, I would recommend to use seaborn as an alternative solution if you want have more customized plots while not going into the basic level of matplotlib. In this case you the solution will be following:

import pandas as pd
import seaborn as sns
import numpy as np

#creating sample data 
sample_data={'col_name_1':np.random.rand(20),
      'col_name_2': np.random.rand(20)}
df= pd.DataFrame(sample_data)
sns.scatterplot(x="col_name_1", y="col_name_2", data=df)

To create a new commit that 'undoes' the changes of a past commit, use:

$ git revert <commit-hash>

It's also possible to actually remove a commit from an arbitrary point in the past by rebasing and then resetting, but you really don't want to do that if you have already pushed your commits to another repository (or someone else has pulled from you).

If your previous commit is a merge commit you can run this command

$ git revert -m 1 <commit-hash>

See schacon.github.com/git/howto/revert-a-faulty-merge.txt for proper ways to re-merge an un-merged branch

public int height(){

    if(this.root== null) return 0;

    int leftDepth = nodeDepth(this.root.left, 1);
    int rightDepth = nodeDepth(this.root.right, 1);

    int height = leftDepth > rightDepth? leftDepth: rightDepth;

    return height;
}


private int nodeDepth(Node node, int startValue){

    int nodeDepth = 0;

    if(node.left == null && node.right == null) return startValue;
    else{
        startValue++;
        if(node.left!= null){
            nodeDepth = nodeDepth(node.left, startValue);
        }

        if(node.right!= null){
            nodeDepth = nodeDepth(node.right, startValue);
        }
    }

    return nodeDepth;
}

This concerns Java versions 7 and earlier.

To quote a good answer to the same question:

If you want it back as a string later, you can call getPath(). Indeed, if you really wanted to mimic Path.Combine, you could just write something like:

public static String combine (String path1, String path2) {
    File file1 = new File(path1);
    File file2 = new File(file1, path2);
    return file2.getPath();
}

The command select username from all_users; requires less privileges

Something I found later which helped, is the .ReadWriteTimeout property. This, in addition to the .Timeout property seemed to finally cut down on the time threads would spend trying to download from a problematic server. The default time for .ReadWriteTimeout is 5 minutes, which for my application was far too long.

So, it seems to me:

.Timeout = time spent trying to establish a connection (not including lookup time) .ReadWriteTimeout = time spent trying to read or write data after connection established

More info: HttpWebRequest.ReadWriteTimeout Property

Edit:

Per @KyleM's comment, the Timeout property is for the entire connection attempt, and reading up on it at MSDN shows:

Timeout is the number of milliseconds that a subsequent synchronous request made with the GetResponse method waits for a response, and the GetRequestStream method waits for a stream. The Timeout applies to the entire request and response, not individually to the GetRequestStream and GetResponse method calls. If the resource is not returned within the time-out period, the request throws a WebException with the Status property set to WebExceptionStatus.Timeout.

(Emphasis mine.)

You mean while the mysql environment?

create database testdb;

Or directly from command line:

mysql -u root -e "create database testdb"; 

If you have a custom button with a background image.You can set the tint color of your button and override the image with following .

In assets select the button background you want to set tint color.

In the attribute inspector of the image set the value render as to "Template Image"

Now whenever you setbutton.tintColor = UIColor.red you button will be shown in red.

The Problem here is that your profile was built on an expired certificated

-so you have to go inside the developer portal and renew your certificate if it was expired

-then regenerate the profile so it will be rebulit on the new certificate

i suggest to use the iPhone configuration utility tool to manage profiles on your mac

Step 1: Set the proxy npm set proxy http://username:password@companyProxy:8080

npm set https-proxy http://username:password@companyProxy:8080

npm config set strict-ssl false -g

NOTES: No special characters in password except @ allowed.

What if javascript is Turned Off on clients machine? Use following solution for all scenarios. You dont even need javascript/jQuery. :

HTML

<label for="fileInput"><img src="File_upload_Img"><label>
<input type="file" id="fileInput"></label>

CSS

#fileInput{opacity:0}  
body{
    background:cadetblue;
}

Explanation : for="Your input Id" . Triggers click event by default by HTML. So it by default triggers click event, no need of jQuery/javascript. If its simply done by HTML why use jQuery/jScript? And you cant tell if client disabled JS. Your feature should work even though JS is turned off.

Working jsFiddle (You dont need JS , jquery)

The video AngularJS Fundamentals In 60-ish Minutes provides a very good introduction and overview.

I would also highly recomend the AngularJS book from O'Reilly, mentioned by @Atropo.

This worked for me:

echo "<b>HTML Message goes here</b>" | mail -s "$(echo -e "This is the subject\nContent-Type: text/html")" [email protected]

Why do I have to use "{{title}}" with '@' and "title" with '='?

@ binds a local/directive scope property to the evaluated value of the DOM attribute. If you use title=title1 or title="title1", the value of DOM attribute "title" is simply the string title1. If you use title="{{title}}", the value of the DOM attribute "title" is the interpolated value of {{title}}, hence the string will be whatever parent scope property "title" is currently set to. Since attribute values are always strings, you will always end up with a string value for this property in the directive's scope when using @.

= binds a local/directive scope property to a parent scope property. So with =, you use the parent model/scope property name as the value of the DOM attribute. You can't use {{}}s with =.

With @, you can do things like title="{{title}} and then some" -- {{title}} is interpolated, then the string "and them some" is concatenated with it. The final concatenated string is what the local/directive scope property gets. (You can't do this with =, only @.)

With @, you will need to use attr.$observe('title', function(value) { ... }) if you need to use the value in your link(ing) function. E.g., if(scope.title == "...") won't work like you expect. Note that this means you can only access this attribute asynchronously. You don't need to use $observe() if you are only using the value in a template. E.g., template: '<div>{{title}}</div>'.

With =, you don't need to use $observe.

Can I also access the parent scope directly, without decorating my element with an attribute?

Yes, but only if you don't use an isolate scope. Remove this line from your directive

scope: { ... }

and then your directive will not create a new scope. It will use the parent scope. You can then access all of the parent scope properties directly.

The documentation says "Often it's desirable to pass data from the isolated scope via an expression and to the parent scope", but that seems to work fine with bidirectional binding too. Why would the expression route be better?

Yes, bidirectional binding allows the local/directive scope and the parent scope to share data. "Expression binding" allows the directive to call an expression (or function) defined by a DOM attribute -- and you can also pass data as arguments to the expression or function. So, if you don't need to share data with the parent -- you just want to call a function defined in the parent scope -- you can use the & syntax.

See also

• Lukas's isolated scope blog post (covers @, =, &)
• dnc253's explanation of @ and =
• my blog-like answer about scopes -- the directives section (way at the bottom, just before the Summary section) has a picture of an isolate scope and its parent scope -- the directive scope uses @ for one property and = for another
• What is the difference between & vs @ and = in angularJS

A callable is an object allows you to use round parenthesis ( ) and eventually pass some parameters, just like functions.

Every time you define a function python creates a callable object. In example, you could define the function func in these ways (it's the same):

class a(object):
    def __call__(self, *args):
        print 'Hello'

func = a()

# or ... 
def func(*args):
    print 'Hello'

You could use this method instead of methods like doit or run, I think it's just more clear to see obj() than obj.doit()

I managed to modify(boundaries, even check, negative nums check) Qx__ answer. Use at your own risk. 0^-1, 0^-2 etc.. returns 0.

private static int pow(int x, int n) {
        if (n == 0)
            return 1;
        if (n == 1)
            return x;
        if (n < 0) { // always 1^xx = 1 && 2^-1 (=0.5 --> ~ 1 )
            if (x == 1 || (x == 2 && n == -1))
                return 1;
            else
                return 0;
        }
        if ((n & 1) == 0) { //is even 
            long num = pow(x * x, n / 2);
            if (num > Integer.MAX_VALUE) //check bounds
                return Integer.MAX_VALUE; 
            return (int) num;
        } else {
            long num = x * pow(x * x, n / 2);
            if (num > Integer.MAX_VALUE) //check bounds
                return Integer.MAX_VALUE;
            return (int) num;
        }
    }

Just because I did not see it mentioned.

If 2016+, here is yet another option to dynamically unpivot data without actually using Dynamic SQL.

Example

Declare @YourTable Table ([ID] varchar(50),[Col1] varchar(50),[Col2] varchar(50))
Insert Into @YourTable Values 
 (1,'A','B')
,(2,'R','C')
,(3,'X','D')

Select A.[ID]
      ,Item  = B.[Key]
      ,Value = B.[Value]
 From  @YourTable A
 Cross Apply ( Select * 
                From  OpenJson((Select A.* For JSON Path,Without_Array_Wrapper )) 
                Where [Key] not in ('ID','Other','Columns','ToExclude')
             ) B

Returns

ID  Item    Value
1   Col1    A
1   Col2    B
2   Col1    R
2   Col2    C
3   Col1    X
3   Col2    D

You have to convert string formate to required date format as following and then you can get your required result.

hive> select * from salesdata01 where from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') >= from_unixtime(unix_timestamp('2010-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') and from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') <= from_unixtime(unix_timestamp('2011-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') limit 10;
OK
1   3   13-10-2010  Low 6.0 261.54  0.04    Regular Air -213.25 38.94
80  483 10-07-2011  High    30.0    4965.7593   0.08    Regular Air 1198.97 195.99
97  613 17-06-2011  High    12.0    93.54   0.03    Regular Air -54.04  7.3
98  613 17-06-2011  High    22.0    905.08  0.09    Regular Air 127.7   42.76
103 643 24-03-2011  High    21.0    2781.82 0.07    Express Air -695.26 138.14
127 807 23-11-2010  Medium  45.0    196.85  0.01    Regular Air -166.85 4.28
128 807 23-11-2010  Medium  32.0    124.56  0.04    Regular Air -14.33  3.95
160 995 30-05-2011  Medium  46.0    1815.49 0.03    Regular Air 782.91  39.89
229 1539    09-03-2011  Low 33.0    511.83  0.1 Regular Air -172.88 15.99
230 1539    09-03-2011  Low 38.0    184.99  0.05    Regular Air -144.55 4.89
Time taken: 0.166 seconds, Fetched: 10 row(s)
hive> select * from salesdata01 where from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') >= from_unixtime(unix_timestamp('2010-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') and from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') <= from_unixtime(unix_timestamp('2010-12-01', 'yyyy-MM-dd'),'yyyy-MM-dd') limit 10;
OK
1   3   13-10-2010  Low 6.0 261.54  0.04    Regular Air -213.25 38.94
127 807 23-11-2010  Medium  45.0    196.85  0.01    Regular Air -166.85 4.28
128 807 23-11-2010  Medium  32.0    124.56  0.04    Regular Air -14.33  3.95
256 1792    08-11-2010  Low 28.0    370.48  0.04    Regular Air -5.45   13.48
381 2631    23-09-2010  Low 27.0    1078.49 0.08    Regular Air 252.66  40.96
656 4612    19-09-2010  Medium  9.0 89.55   0.06    Regular Air -375.64 4.48
769 5506    07-11-2010  Critical    22.0    129.62  0.05    Regular Air 4.41    5.88
1457    10499   16-11-2010  Not Specified   29.0    6250.936    0.01    Delivery Truck  31.21   262.11
1654    11911   10-11-2010  Critical    25.0    397.84  0.0 Regular Air -14.75  15.22
2323    16741   30-09-2010  Medium  6.0 157.97  0.01    Regular Air -42.38  22.84
Time taken: 0.17 seconds, Fetched: 10 row(s)

That tool is part of the setuptools (now called Distribute) package. Install Distribute. Of course you'll have to fetch that one manually.

http://pypi.python.org/pypi/distribute#installation-instructions

Just to clarify, do you have JAVA_HOME set as a system variable or set in Eclipse classpath variables? I'm pretty sure (but not totally sure!) that the system variable is used by the command line compiler (and Ant), but that Eclipse modifies this accroding to the JDK used

Try using flexbox. As an example, the following code shows the CSS for the container div inside which the contents needs to be centered aligned:

.absolute-center {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;

    -ms-flex-align: center;
    -webkit-align-items: center;
    -webkit-box-align: center;

    align-items: center;

}

You can't just use a percentage width for the div? Setting the width to 50% will make it 50% as wide as the window (assuming there is no parent element with a width assigned to it).

Sure you can:

https://<organization>.slack.com/messages/<channel>/

for example: https://tikal.slack.com/messages/general/ (of course that for accessing it, you must be part of the team)

Here's a short example of why typedef array can be confusingly inconsistent. The other answers provide a workaround.

#include <stdio.h>
typedef char type24[3];

int func(type24 a) {
        type24 b;
        printf("sizeof(a) is %zu\n",sizeof(a));
        printf("sizeof(b) is %zu\n",sizeof(b));
        return 0;
}

int main(void) {
        type24 a;
        return func(a);
}

This produces the output

sizeof(a) is 8
sizeof(b) is 3

because type24 as a parameter is a pointer. (In C, arrays are always passed as pointers.) The gcc8 compiler will issue a warning by default, thankfully.

get_key = lambda v, d: next(k for k in d if d[k] is v)

This is the code for the character you posted in your question: 

But that's not a checkbox character...

These steps worked on me:

1. write mongod --port 27017 on cmd
2. then connect to mongo shell : mongo --port 27017
3. create the user admin : use admin db.createUser( { user: "myUserAdmin", pwd: "abc123", roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] } )
4. disconnect mongo shell
5. restart the mongodb : mongod --auth --port 27017
6. start mongo shell : mongo --port 27017 -u "myUserAdmin" -p "abc123" --authenticationDatabase "admin"
7. To authenticate after connecting, Connect the mongo shell to the mongod: mongo --port 27017
8. switch to the authentication database : use admin db.auth("myUserAdmin", "abc123"

Play released its module for dealing with JSON independently from Play Framework, Play WS

Made a blog post about that, check it out at http://pedrorijo.com/blog/scala-json/

Using case classes, and Play WS (already included in Play Framework) you case convert between json and case classes with a simple one-liner implicit

case class User(username: String, friends: Int, enemies: Int, isAlive: Boolean)

object User {
  implicit val userJsonFormat = Json.format[User]
}

The other answers so far have a lot of technical information. I will try to answer, as requested, in simple terms.

Serialization is what you do to an instance of an object if you want to dump it to a raw buffer, save it to disk, transport it in a binary stream (e.g., sending an object over a network socket), or otherwise create a serialized binary representation of an object. (For more info on serialization see Java Serialization on Wikipedia).

If you have no intention of serializing your class, you can add the annotation just above your class @SuppressWarnings("serial").

If you are going to serialize, then you have a host of things to worry about all centered around the proper use of UUID. Basically, the UUID is a way to "version" an object you would serialize so that whatever process is de-serializing knows that it's de-serializing properly. I would look at Ensure proper version control for serialized objects for more information.

jQuery will do the job. You can use either jQuery.ajax function, which is general one for performing ajax calls, or its wrappers: jQuery.get, jQuery.post for getting/posting data. Its very easy to use, for example, check out this tutorial, which shows how to use jQuery with PHP.

You cannot directly save a Python file as an exe and expect it to work -- the computer cannot automatically understand whatever code you happened to type in a text file. Instead, you need to use another program to transform your Python code into an exe.

I recommend using a program like Pyinstaller. It essentially takes the Python interpreter and bundles it with your script to turn it into a standalone exe that can be run on arbitrary computers that don't have Python installed (typically Windows computers, since Linux tends to come pre-installed with Python).

To install it, you can either download it from the linked website or use the command:

pip install pyinstaller

...from the command line. Then, for the most part, you simply navigate to the folder containing your source code via the command line and run:

pyinstaller myscript.py

You can find more information about how to use Pyinstaller and customize the build process via the documentation.

You don't necessarily have to use Pyinstaller, though. Here's a comparison of different programs that can be used to turn your Python code into an executable.

For Microsoft office 2013

"Last but one" of a non empty row:

=OFFSET(Sheet5!$C$1,COUNTA(Sheet5!$C:$C)-2,0)

"Last" non empty row:

=OFFSET(Sheet5!$C$1,COUNTA(Sheet5!$C:$C)-1,0)

To go the full manual route: This method converts doubles to strings by shifting the number's decimal point around and using floor (to long) and modulus to extract the digits. Also, it uses counting by base division to figure out the place where the decimal point belongs. It can also "delete" higher parts of the number once it reaches the places after the decimal point, to avoid losing precision with ultra-large doubles. See commented code at the end. In my testing, it is never less precise than the Java float representations themselves, when they actually show these imprecise lower decimal places.

/**
 * Convert the given double to a full string representation, i.e. no scientific notation
 * and always twelve digits after the decimal point.
 * @param d The double to be converted
 * @return A full string representation
 */
public static String fullDoubleToString(final double d) {
    // treat 0 separately, it will cause problems on the below algorithm
    if (d == 0) {
        return "0.000000000000";
    }
    // find the number of digits above the decimal point
    double testD = Math.abs(d);
    int digitsBeforePoint = 0;
    while (testD >= 1) {
        // doesn't matter that this loses precision on the lower end
        testD /= 10d;
        ++digitsBeforePoint;
    }

    // create the decimal digits
    StringBuilder repr = new StringBuilder();
    // 10^ exponent to determine divisor and current decimal place
    int digitIndex = digitsBeforePoint;
    double dabs = Math.abs(d);
    while (digitIndex > 0) {
        // Recieves digit at current power of ten (= place in decimal number)
        long digit = (long)Math.floor(dabs / Math.pow(10, digitIndex-1)) % 10;
        repr.append(digit);
        --digitIndex;
    }

    // insert decimal point
    if (digitIndex == 0) {
        repr.append(".");
    }

    // remove any parts above the decimal point, they create accuracy problems
    long digit = 0;
    dabs -= (long)Math.floor(dabs);
    // Because of inaccuracy, move to entirely new system of computing digits after decimal place.
    while (digitIndex > -12) {
        // Shift decimal point one step to the right
        dabs *= 10d;
        final var oldDigit = digit;
        digit = (long)Math.floor(dabs) % 10;
        repr.append(digit);

        // This may avoid float inaccuracy at the very last decimal places.
        // However, in practice, inaccuracy is still as high as even Java itself reports.
        // dabs -= oldDigit * 10l;
        --digitIndex;
    }

    return repr.insert(0, d < 0 ? "-" : "").toString(); 
}

Note that while StringBuilder is used for speed, this method can easily be rewritten to use arrays and therefore also work in other languages.

According to sandersn the best way to do this would be:

Object.values(MESSAGE_TYPE).includes(type as MESSAGE_TYPE)

I had the same issue today recently installing VS2015 Community Edition Update 1.

I fixed the problem by just adding the "SQL Server Data Tools" from the VS2015 setup installer... When I ran the installer the first time I selected the "Custom" installation type instead of the "Default". I wanted to see what install options were available but not select anything different than what was already ticked. My assumption was that whatever was already ticked was essentially the default install. But its not.

Your XAMPP restarting with following error at Multi-Processing Module mpm

 [mpm_winnt:notice] [pid 4200:tid 228] AH00428:    
`Parent: child process 248 exited with status 1073807364 -- Restarting.`

Add the following in the httpd.conf file of xampp to resolve this.

<IfModule mpm_winnt_module>
  ThreadStackSize 8388608
</IfModule>

You must check this: Docblock Comment standards

http://pear.php.net/manual/en/standards.sample.php

Perhaps you can try adding this in your imports:

import 'rxjs/add/operator/catch';

You can also do:

return this.http.request(request)
  .map(res => res.json())
  .subscribe(
    data => console.log(data),
    err => console.log(err),
    () => console.log('yay')
  );

Per comments:

EXCEPTION: TypeError: Observable_1.Observable.throw is not a function

Similarly, for that, you can use:

import 'rxjs/add/observable/throw';

In SQL Server, row-oriented storage both clustered and nonclustered indexes are organized as B trees.

(Image Source)

The key difference between clustered indexes and non clustered indexes is that the leaf level of the clustered index is the table. This has two implications.

1. The rows on the clustered index leaf pages always contain something for each of the (non-sparse) columns in the table (either the value or a pointer to the actual value).
2. The clustered index is the primary copy of a table.

Non clustered indexes can also do point 1 by using the INCLUDE clause (Since SQL Server 2005) to explicitly include all non-key columns but they are secondary representations and there is always another copy of the data around (the table itself).

CREATE TABLE T
(
A INT,
B INT,
C INT,
D INT
)

CREATE UNIQUE CLUSTERED INDEX ci ON T(A, B)
CREATE UNIQUE NONCLUSTERED INDEX nci ON T(A, B) INCLUDE (C, D)

The two indexes above will be nearly identical. With the upper-level index pages containing values for the key columns A, B and the leaf level pages containing A, B, C, D

There can be only one clustered index per table, because the data rows themselves can be sorted in only one order.

The above quote from SQL Server books online causes much confusion

In my opinion, it would be much better phrased as.

There can be only one clustered index per table because the leaf level rows of the clustered index are the table rows.

The book's online quote is not incorrect but you should be clear that the "sorting" of both non clustered and clustered indices is logical, not physical. If you read the pages at leaf level by following the linked list and read the rows on the page in slot array order then you will read the index rows in sorted order but physically the pages may not be sorted. The commonly held belief that with a clustered index the rows are always stored physically on the disk in the same order as the index key is false.

This would be an absurd implementation. For example, if a row is inserted into the middle of a 4GB table SQL Server does not have to copy 2GB of data up in the file to make room for the newly inserted row.

Instead, a page split occurs. Each page at the leaf level of both clustered and non clustered indexes has the address (File: Page) of the next and previous page in logical key order. These pages need not be either contiguous or in key order.

e.g. the linked page chain might be 1:2000 <-> 1:157 <-> 1:7053

When a page split happens a new page is allocated from anywhere in the filegroup (from either a mixed extent, for small tables or a non-empty uniform extent belonging to that object or a newly allocated uniform extent). This might not even be in the same file if the filegroup contains more than one.

The degree to which the logical order and contiguity differ from the idealized physical version is the degree of logical fragmentation.

In a newly created database with a single file, I ran the following.

CREATE TABLE T
  (
     X TINYINT NOT NULL,
     Y CHAR(3000) NULL
  );

CREATE CLUSTERED INDEX ix
  ON T(X);

GO

--Insert 100 rows with values 1 - 100 in random order
DECLARE @C1 AS CURSOR,
        @X  AS INT

SET @C1 = CURSOR FAST_FORWARD
FOR SELECT number
    FROM   master..spt_values
    WHERE  type = 'P'
           AND number BETWEEN 1 AND 100
    ORDER  BY CRYPT_GEN_RANDOM(4)

OPEN @C1;

FETCH NEXT FROM @C1 INTO @X;

WHILE @@FETCH_STATUS = 0
  BEGIN
      INSERT INTO T (X)
      VALUES        (@X);

      FETCH NEXT FROM @C1 INTO @X;
  END

Then checked the page layout with

SELECT page_id,
       X,
       geometry::Point(page_id, X, 0).STBuffer(1)
FROM   T
       CROSS APPLY sys.fn_PhysLocCracker( %% physloc %% )
ORDER  BY page_id

The results were all over the place. The first row in key order (with value 1 - highlighted with an arrow below) was on nearly the last physical page.

Fragmentation can be reduced or removed by rebuilding or reorganizing an index to increase the correlation between logical order and physical order.

After running

ALTER INDEX ix ON T REBUILD;

I got the following

If the table has no clustered index it is called a heap.

Non clustered indexes can be built on either a heap or a clustered index. They always contain a row locator back to the base table. In the case of a heap, this is a physical row identifier (rid) and consists of three components (File:Page: Slot). In the case of a Clustered index, the row locator is logical (the clustered index key).

For the latter case if the non clustered index already naturally includes the CI key column(s) either as NCI key columns or INCLUDE-d columns then nothing is added. Otherwise, the missing CI key column(s) silently gets added to the NCI.

SQL Server always ensures that the key columns are unique for both types of indexes. The mechanism in which this is enforced for indexes not declared as unique differs between the two index types, however.

Clustered indexes get a uniquifier added for any rows with key values that duplicate an existing row. This is just an ascending integer.

For non clustered indexes not declared as unique SQL Server silently adds the row locator into the non clustered index key. This applies to all rows, not just those that are actually duplicates.

The clustered vs non clustered nomenclature is also used for column store indexes. The paper Enhancements to SQL Server Column Stores states

Although column store data is not really "clustered" on any key, we decided to retain the traditional SQL Server convention of referring to the primary index as a clustered index.

I wrote a simple function (not yet another jQuery plugin needed!!) that converts a number to a decimal separated string or an empty string if the number wasn't a number to begin with:

function format(x) {
    return isNaN(x)?"":x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

format(578999); results in 578,999

format(10); results in 10

if you want to have a decimal point instead of a comma simply replace the comma in the code with a decimal point.

One of the comments correctly stated this only works for integers, with a few small adaptions you can make it work for floating points as well:

function format(x) {
    if(isNaN(x))return "";

    n= x.toString().split('.');
    return n[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",")+(n.length>1?"."+n[1]:"");
}

It depends on architecture/jdk. For a modern JDK and 64bit architecture, an object has 12-bytes header and padding by 8 bytes - so minimum object size is 16 bytes. You can use a tool called Java Object Layout to determine a size and get details about object layout and internal structure of any entity or guess this information by class reference. Example of an output for Integer on my environment:

Running 64-bit HotSpot VM.
Using compressed oop with 3-bit shift.
Using compressed klass with 3-bit shift.
Objects are 8 bytes aligned.
Field sizes by type: 4, 1, 1, 2, 2, 4, 4, 8, 8 [bytes]
Array element sizes: 4, 1, 1, 2, 2, 4, 4, 8, 8 [bytes]

java.lang.Integer object internals:
 OFFSET  SIZE  TYPE DESCRIPTION                    VALUE
      0    12       (object header)                N/A
     12     4   int Integer.value                  N/A
Instance size: 16 bytes (estimated, the sample instance is not available)
Space losses: 0 bytes internal + 0 bytes external = 0 bytes total

So, for Integer, instance size is 16 bytes, because 4-bytes int compacted in place right after header and before padding boundary.

Code sample:

import org.openjdk.jol.info.ClassLayout;
import org.openjdk.jol.util.VMSupport;

public static void main(String[] args) {
    System.out.println(VMSupport.vmDetails());
    System.out.println(ClassLayout.parseClass(Integer.class).toPrintable());
}

If you use maven, to get JOL:

<dependency>
    <groupId>org.openjdk.jol</groupId>
    <artifactId>jol-core</artifactId>
    <version>0.3.2</version>
</dependency>

Regarding using reduce() with lambda. Here is a working code that I personally think is way nicer than some of the other answers.

reduce(lambda x, y: (x[1]==y, y), [2, 2, 2], (True, 2))

Returns a tuple where the first value is the boolean if all items are same or not.

You can also use template reference variables

<form (submit)="onSubmit(player.value)">
   <input #player placeholder="player name">
</form>

onSubmit(playerName: string) {
  console.log(playerName)
}

Just for fine tuning. If you want to set only one of the boundaries of the axis and let the other boundary unchanged, you can choose one or more of the following statements

plt.xlim(right=xmax) #xmax is your value
plt.xlim(left=xmin) #xmin is your value
plt.ylim(top=ymax) #ymax is your value
plt.ylim(bottom=ymin) #ymin is your value

Take a look at the documentation for xlim and for ylim

esp stands for "Extended Stack Pointer".....ebp for "Something Base Pointer"....and eip for "Something Instruction Pointer"...... The stack Pointer points to the offset address of the stack segment. The Base Pointer points to the offset address of the extra segment. The Instruction Pointer points to the offset address of the code segment. Now, about the segments...they are small 64KB divisions of the processors memory area.....This process is known as Memory Segmentation. I hope this post was helpful.

Swift 5.1:

let storyboard = UIStoryboard.init(name: "Main", bundle: Bundle.main)
let mainViewController = storyboard.instantiateViewController(withIdentifier: "ID")
let appDeleg = UIApplication.shared.delegate as! AppDelegate
let root = appDeleg.window?.rootViewController as! UINavigationController
root.pushViewController(mainViewController, animated: true)

ExecuteReader() executes a SQL query that returns the data provider DBDataReader object that provide forward only and read only access for the result of the query.

ExecuteScalar() is similar to ExecuteReader() method that is designed for singleton query such as obtaining a record count.

ExecuteNonQuery() execute non query that works with create ,delete,update, insert)

If you get an "always true/fails" warning you may need to cast to Any before using is

(foo as Any) is SomeClass

i had a kind of similar problem. i tried to copy from a server to my desktop and always got the same message for the local path. the problem was, i already was logged in to my server per ssh, so it was searching for the local path in the server path.

solution: i had to log out and run the command again and it worked

Here's something you can do with AlertBuilder to make the title disappear:

TextView title = new TextView(this);
title.setVisibility(View.GONE);
builder.setCustomTitle(title);

Use this code

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

    <corners
        android:bottomLeftRadius="5dp"
        android:bottomRightRadius="5dp"
        android:radius="0.1dp"
        android:topLeftRadius="5dp"
        android:topRightRadius="5dp" />

    <solid android:color="#Efffff" />

    <stroke
        android:width="2dp"
        android:color="#25aaff" />

</shape>

I think you'll have to import the project via the file->import wizard:

http://www.coderanch.com/t/419556/vc/Open-existing-project-Eclipse

It's not the last step, but it will start you on your way.

I also feel your pain - there is really no excuse for making it so difficult to do a simple thing like opening an existing project. I truly hope that the Eclipse designers focus on making the IDE simpler to use (tho I applaud their efforts at trying different approaches - but please, Eclipse designers, if you are listening, never complicate something simple).

I had the same error for quite a while, and here what fixed it for me.

I simply declared in service that i use what follows:

Description= Your node service description
After=network.target

[Service]
Type=forking
PIDFile=/tmp/node_pid_name.pid
Restart=on-failure
KillSignal=SIGQUIT
WorkingDirectory=/path/to/node/app/root/directory
ExecStart=/path/to/node /path/to/server.js

[Install]
WantedBy=multi-user.target

What should catch your attention here is "After=network.target". I spent days and days looking for fixes on nginx side, while the problem was just that. To be sure, stop running the node service you have, launch the ExecStart command directly and try to reproduce the bug. If it doesn't pop, it just means that your service has a problem. At least this is how i found my answer.

For everybody else, good luck!

This may not be what you want, but being an eclipse user I had the same problem having duplicate sdk folders which were eating all my ssd space. Currently you can only change sdk path inside android studio project wide which is annoying. What I did instead was I copied all the previous android sdk files that I was using with eclipse to /Android Studio/sdk/ and then just changed the sdk path inside eclipse.

Now both android studio and eclipse are happy.

The Simplest way to do this is

private void deleteAppData() {
     try {
    // clearing app data
    String packageName = getApplicationContext().getPackageName();
    Runtime runtime = Runtime.getRuntime();
    runtime.exec("pm clear "+packageName);

} catch (Exception e) {
    e.printStackTrace();
} }

This will clear the data and remove your app from memory. It is equivalent to clear data option under Settings --> Application Manager --> Your App --> Clear data

Technically speaking, all of the answers at this time are wrong. packageVersion does not return the version of the loaded package. It goes to the disk, and fetches the package version from there.

This will not make a difference in most cases, but sometimes it does. As far as I can tell, the only way to get the version of a loaded package is the rather hackish:

asNamespace(pkg)$`.__NAMESPACE__.`$spec[["version"]]

where pkg is the package name.

EDIT: I am not sure when this function was added, but you can also use getNamespaceVersion, this is cleaner:

getNamespaceVersion(pkg)

As nice as "return by value" might be, it's the kind of code that can lead one into error. Consider the following program:

    #include <string>
    #include <vector>
    #include <iostream>
    using namespace std;
    static std::vector<std::string> strings;
    std::vector<std::string> vecFunc(void) { return strings; };
    int main(int argc, char * argv[]){
      // set up the vector of strings to hold however
      // many strings the user provides on the command line
      for(int idx=1; (idx<argc); ++idx){
         strings.push_back(argv[idx]);
      }

      // now, iterate the strings and print them using the vector function
      // as accessor
      for(std::vector<std::string>::interator idx=vecFunc().begin(); (idx!=vecFunc().end()); ++idx){
         cout << "Addr: " << idx->c_str() << std::endl;
         cout << "Val:  " << *idx << std::endl;
      }
    return 0;
    };

• Q: What will happen when the above is executed? A: A coredump.
• Q: Why didn't the compiler catch the mistake? A: Because the program is syntactically, although not semantically, correct.
• Q: What happens if you modify vecFunc() to return a reference? A: The program runs to completion and produces the expected result.
• Q: What is the difference? A: The compiler does not have to create and manage anonymous objects. The programmer has instructed the compiler to use exactly one object for the iterator and for endpoint determination, rather than two different objects as the broken example does.

The above erroneous program will indicate no errors even if one uses the GNU g++ reporting options -Wall -Wextra -Weffc++

If you must produce a value, then the following would work in place of calling vecFunc() twice:

   std::vector<std::string> lclvec(vecFunc());
   for(std::vector<std::string>::iterator idx=lclvec.begin(); (idx!=lclvec.end()); ++idx)...

The above also produces no anonymous objects during iteration of the loop, but requires a possible copy operation (which, as some note, might be optimized away under some circumstances. But the reference method guarantees that no copy will be produced. Believing the compiler will perform RVO is no substitute for trying to build the most efficient code you can. If you can moot the need for the compiler to do RVO, you are ahead of the game.

@Xaqq has provided a really nice type-safe way to use enum flags here by a flag_set class.

I published the code in GitHub, usage is as follows:

#include "flag_set.hpp"

enum class AnimalFlags : uint8_t {
    HAS_CLAWS,
    CAN_FLY,
    EATS_FISH,
    ENDANGERED,
    _
};

int main()
{
    flag_set<AnimalFlags> seahawkFlags(AnimalFlags::HAS_CLAWS
                                       | AnimalFlags::EATS_FISH
                                       | AnimalFlags::ENDANGERED);

    if (seahawkFlags & AnimalFlags::ENDANGERED)
        cout << "Seahawk is endangered";
}

if (($("#one").length > 0)){
   alert('yes');
}

if (($("#two").length > 0)){
   alert('yes');
}

if (($("#three").length > 0)){
   alert('yes');
}

if (($("#four")).length == 0){
   alert('no');
}

This is what you need :)

Another way to think of it is to calculate the unit vector for a given direction and then apply a 90 degree counterclockwise rotation to get the normal vector.

The matrix representation of the general 2D transformation looks like this:

x' = x cos(t) - y sin(t)
y' = x sin(t) + y cos(t)

where (x,y) are the components of the original vector and (x', y') are the transformed components.

If t = 90 degrees, then cos(90) = 0 and sin(90) = 1. Substituting and multiplying it out gives:

x' = -y
y' = +x

Same result as given earlier, but with a little more explanation as to where it comes from.

Remove static keyword in method definition. Keep it just in your class definition.

static keyword placed in .cpp file means that a certain function has a static linkage, ie. it is accessible only from other functions in the same file.

best solution: from jQuery v1.6 you can use prop() to add a property

$('#someid').prop('disabled', true);

to remove it, use removeProp()

$('#someid').removeProp('disabled');

Reference

Also note that the .removeProp() method should not be used to set these properties to false. Once a native property is removed, it cannot be added again. See .removeProp() for more information.

If you don't mind getting your hands dirty, it isn't that difficult to write an RTF to HTML converter.

Writing a general purpose RTF->HTML converter would be somewhat complicated because you would need to deal with hundreds of RTF verbs. However, in your case you are only dealing with those verbs used specifically by Crystal Reports. I'll bet the standard RTF coding generated by Crystal doesn't vary much from report to report.

I wrote an RTF to HTML converter in C++, but it only deals with basic formatting like fonts, paragraph alignments, etc. My translator basically strips out any specialized formatting that it isn't prepared to deal with. It took about 400 lines of C++. It basically scans the text for RTF tags and replaces them with equivalent HTML tags. RTF tags that aren't in my list are simply stripped out. A regex function is really helpful when writing such a converter.

Swift 4.1 and 5. We use queues in many places in our code. So, I created Threads class with all queues. If you don't want to use Threads class you can copy the desired queue code from class methods.

class Threads {

  static let concurrentQueue = DispatchQueue(label: "AppNameConcurrentQueue", attributes: .concurrent)
  static let serialQueue = DispatchQueue(label: "AppNameSerialQueue")

  // Main Queue
  class func performTaskInMainQueue(task: @escaping ()->()) {
    DispatchQueue.main.async {
      task()
    }
  }

  // Background Queue
  class func performTaskInBackground(task:@escaping () throws -> ()) {
    DispatchQueue.global(qos: .background).async {
      do {
        try task()
      } catch let error as NSError {
        print("error in background thread:\(error.localizedDescription)")
      }
    }
  }

  // Concurrent Queue
  class func perfromTaskInConcurrentQueue(task:@escaping () throws -> ()) {
    concurrentQueue.async {
      do {
        try task()
      } catch let error as NSError {
        print("error in Concurrent Queue:\(error.localizedDescription)")
      }
    }
  }

  // Serial Queue
  class func perfromTaskInSerialQueue(task:@escaping () throws -> ()) {
    serialQueue.async {
      do {
        try task()
      } catch let error as NSError {
        print("error in Serial Queue:\(error.localizedDescription)")
      }
    }
  }

  // Perform task afterDelay
  class func performTaskAfterDealy(_ timeInteval: TimeInterval, _ task:@escaping () -> ()) {
    DispatchQueue.main.asyncAfter(deadline: (.now() + timeInteval)) {
      task()
    }
  }
}

Example showing the use of main queue.

override func viewDidLoad() {
    super.viewDidLoad()
     Threads.performTaskInMainQueue {
        //Update UI
    }
}

I think this is a better way-

variable1=StringVar() # Value saved here

def search():
  print(variable1.get())
  return ''

ttk.Entry(mainframe, width=7, textvariable=variable1).grid(column=2, row=1)

ttk.Label(mainframe, text="label").grid(column=1, row=1)

ttk.Button(mainframe, text="Search", command=search).grid(column=2, row=13)

On pressing the button, the value in the text field would get printed. But make sure You import the ttk separately.

The full code for a basic application is-

from tkinter import *
from tkinter import ttk

root=Tk()
mainframe = ttk.Frame(root, padding="10 10 12 12")
mainframe.grid(column=0, row=0, sticky=(N, W, E, S))
mainframe.columnconfigure(0, weight=1)
mainframe.rowconfigure(0, weight=1)


variable1=StringVar() # Value saved here

def search():
  print(variable1.get())
  return ''

ttk.Entry(mainframe, width=7, textvariable=variable1).grid(column=2, row=1)

ttk.Label(mainframe, text="label").grid(column=1, row=1)

ttk.Button(mainframe, text="Search", command=search).grid(column=2, row=13)

root.mainloop()

Thanks for your answers. I didn't understand what type of object "MyTable" was (in your answers) and the following code gave me the error shown below.

DataTable dt = ds.Tables[0];
var name = from r in dt
           where r.ID == 0
           select r.Name;

Could not find an implementation of the query pattern for source type 'System.Data.DataTable'. 'Where' not found

So I continued my googling and found something that does work:

var rowColl = ds.Tables[0].AsEnumerable();
string name = (from r in rowColl
              where r.Field<int>("ID") == 0
              select r.Field<string>("NAME")).First<string>();

What do you think?

For Microsoft Access

UPDATE TableA A
    INNER JOIN TableB B
    ON A.ID = B.ID
SET A.Name = B.Name

It seems your solution is not much ugly. You can use functions and make it proffesional like these ways

• first way

new.function <- function(filename){
  readChar(filename, file.info(filename)$size)
}

new.function('foo.txt')

• second way

new.function <- function(){
  filename <- 'foo.txt'
  return (readChar(filename, file.info(filename)$size))
}

new.function()

Actually the example you gave for focusing on this site works just fine, as long as you're not focused in the console. The reason that's not working is simply because it's not stealing focus from the dev console. If you run the following code in your console and then quickly click in your browser window after, you will see it focus the search box:

setTimeout(function() { $('input[name="q"]').focus() }, 3000);

As for your other one, the one thing that has given me trouble in the past is order of events. You cannot call focus() on an element that hasn't been attached to the DOM. Has the element you are trying to focus already been attached to the DOM?

If you want to insert other string somewhere else in existing string, you may use selection method below.

Calling character on second position:

>>> s = "0123456789"
>>> s[2]
'2'

Calling range with start and end position:

>>> s[4:6]
'45'

Calling part of a string before that position:

>>> s[:6]
'012345'

Calling part of a string after that position:

>>> s[4:]
'456789'

Inserting your string in 5th position.

>>> s = s[:5] + "L" + s[5:]
>>> s
'01234L56789'

Also s is equivalent to s[:].

With your question you can use all your string, i.e.

>>> s = "L" + s + "LL"

or if "L" is a some other string (for example I call it as l), then you may use that code:

>>> s = l + s + (l * 2)

Swift 4 & 5

For string keys sorting:

dictionary.keys.sorted(by: {$0.localizedStandardCompare($1) == .orderedAscending})

Example:

var dict : [String : Any] = ["10" : Any, "2" : Any, "20" : Any, "1" : Any]

dictionary.keys.sorted() 

["1" : Any, "10" : Any, "2" : Any, "20" : Any]

dictionary.keys.sorted(by: {$0.localizedStandardCompare($1) == .orderedAscending})

["1" : Any, "2" : Any, "10" : Any, "20" : Any]

You could use xpath to accomplish this

var xpath = "//a[text()='SearchingText']";
var matchingElement = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;

You can also search of an element containing some text using this xpath:

var xpath = "//a[contains(text(),'Searching')]";

One more option is to add the path of the privatekey file like this in terminal:

ssh-add "path to the privatekeyfile"

and then execute the pull command

IIRC they suggest using the preg_ functions instead (in this case, preg_replace).

And to add to this answer, make sure the image itself has a transparent background.

if your hosting provider using cpanel, you can try copying php.ini into your web directory and edit it with magic_quotes_gpc = off

function Errormessage(txt) {
    $("#message").fadeIn("slow");
    $("#message span:first").text(txt);
    // find the span inside the div and assign a text
    $("#message a.close-notify").click(function() {
        $("#message").fadeOut("slow");
    });
}

If anybody needs to retrive specific RowDataPacket object from multiple queries, here it is.

Before you start

Important: Ensure you enable multipleStatements in your mysql connection like so:

// Connection to MySQL
var db = mysql.createConnection({
  host:     'localhost',
  user:     'root',
  password: '123',
  database: 'TEST',
  multipleStatements: true
});

Multiple Queries

Let's say we have multiple queries running:

  // All Queries are here
  const lastCheckedQuery = `
    -- Query 1
    SELECT * FROM table1
    ;

    -- Query 2
    SELECT * FROM table2;
    `
    ;

  // Run the query
  db.query(lastCheckedQuery, (error, result) => {
    if(error) {
      // Show error
      return res.status(500).send("Unexpected database error");
    }

If we console.log(result) you'll get such output:

[
  [
    RowDataPacket {
      id: 1,
      ColumnFromTable1: 'a',
    }
  ],
  [
    RowDataPacket {
      id: 1,
      ColumnFromTable2: 'b',
    }
  ]
]

Both results show for both tables.

Here is where basic Javascript array's come in place https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

To get data from table1 and column named ColumnFromTable1 we do

result[0][0].ColumnFromTable1 // Notice the double [0]

which gives us result of a.

For all, who has installed GiT completly with "Git Bash": You can just write:

scp login@ip_addres:/location/to/folders/file.tar .

(with space and DOT at the end to copy to current location). Than just add certificate (y), write password and that's all.

for Bootstrap 4, this should work for you

 $('.modal').remove();
 $('.modal-backdrop').remove();

Does it matter which I use?

Yes! The second is vastly more readable. You are trading one line which concisely expresses what you want against nine lines of effectively clutter.

Which is faster?

Neither.

Is it a better practice to use the shortest code whenever possible?

Not “whenever possible” but certainly whenever possible without detriment effects. Shorter code is at least potentially more readable since it focuses on the relevant part rather than on incidental effects (“boilerplate code”).

You'd use a self-join on a table that "refers" to itself - e.g. a table of employees where managerid is a foreign-key to employeeid on that same table.

Example:

SELECT E.name, ME.name AS manager
FROM dbo.Employees E
LEFT JOIN dbo.Employees ME
ON ME.employeeid = E.managerid

Note that "number of cores" might not be a particularly useful number, you might have to qualify it a bit more. How do you want to count multi-threaded CPUs such as Intel HT, IBM Power5 and Power6, and most famously, Sun's Niagara/UltraSparc T1 and T2? Or even more interesting, the MIPS 1004k with its two levels of hardware threading (supervisor AND user-level)... Not to mention what happens when you move into hypervisor-supported systems where the hardware might have tens of CPUs but your particular OS only sees a few.

The best you can hope for is to tell the number of logical processing units that you have in your local OS partition. Forget about seeing the true machine unless you are a hypervisor. The only exception to this rule today is in x86 land, but the end of non-virtual machines is coming fast...

While it is not casting per se; I have found https://github.com/JohnWhiteTB/TypedJSON to be a useful alternative.

@JsonObject
class Person {
    @JsonMember
    firstName: string;

    @JsonMember
    lastName: string;

    public getFullname() {
        return this.firstName + " " + this.lastName;
    }
}
var person = TypedJSON.parse('{ "firstName": "John", "lastName": "Doe" }', Person);

person instanceof Person; // true
person.getFullname(); // "John Doe"

"all" is a default setting, even though Behaviour->Build (Incremental build) tab has no variable. I solved as

1. Go to Project Properties > C/C++ Build > Behaviour Tab.
2. Leave Build (Incremental Build) Checked.
3. Enter "test" in the text box next to Build (Incremental Build).
4. Build Project. You will see error message.
5. Go back to Build (Incremental Build) and delete "test".
6. Build Project.

rows.RemoveAt(rows.Count - 1);

If you have just installed anaconda and got this error, then I think you forgot to run this command :

• source ~/.bashrc

This will enable you to make use of anaconda in terminal.

This may seems simple but many (including me) do this mistake.

If the error is still persisting, you have to verify if anaconda location is added to PATH in your system.

Once you add it, you'll be fine

a = ('A','B','C') # see it as the string "ABC" b = ('A','B','D')

A is converted to its corresponding ASCII ord('A') #65 same for other elements

So, >> a>b # True you can think of it as comparing between string (It is exactly, actually)

the same thing goes for integers too.

x = (1,2,2) # see it the string "123" y = (1,2,3) x > y # False

because (1 is not greater than 1, move to the next, 2 is not greater than 2, move to the next 2 is less than three -lexicographically -)

The key point is mentioned in the answer above

think of it as an element is before another alphabetically not element is greater than an element and in this case consider all the tuple elements as one string.

[object Object] This means somewhere the object is being converted to a string.

Converted to a string:

//Copy and paste in the browser console to see result

var product = {'name':'test'};
JSON.stringify(product + ''); 

Not converted to a string:

//Copy and paste in the browser console to see result

var product = {'name':'test'};
JSON.stringify(product);

When taking over an unmerged commit from another author, there is an easy way to handle this.

git commit --amend --reset-author

I set the opacity to 0. This made it disappear but still function when you click on it.

The server_name^docs directive is used to identify virtual hosts, they're not used to set the binding.

netstat tells you that nginx listens on 0.0.0.0:80 which means that it will accept connections from any IP.

If you want to change the IP nginx binds on, you have to change the listen^docs rule.
So, if you want to set nginx to bind to localhost, you'd change that to:

listen 127.0.0.1:80;

In this way, requests that are not coming from localhost are discarded (they don't even hit nginx).

Servers sometimes compress their responses to save on bandwidth, when this happens, you need to decompress the response before attempting to read it. Fortunately, the .NET framework can do this automatically, however, we have to turn the setting on.

Here's an example of how you could achieve that.

string html = string.Empty;
string url = @"https://api.stackexchange.com/2.2/answers?order=desc&sort=activity&site=stackoverflow";

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.AutomaticDecompression = DecompressionMethods.GZip;

using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
using (Stream stream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(stream))
{
    html = reader.ReadToEnd();
}

Console.WriteLine(html);

GET

public string Get(string uri)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
    request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

    using(HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    using(Stream stream = response.GetResponseStream())
    using(StreamReader reader = new StreamReader(stream))
    {
        return reader.ReadToEnd();
    }
}

GET async

public async Task<string> GetAsync(string uri)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
    request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

    using(HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync())
    using(Stream stream = response.GetResponseStream())
    using(StreamReader reader = new StreamReader(stream))
    {
        return await reader.ReadToEndAsync();
    }
}

POST
Contains the parameter method in the event you wish to use other HTTP methods such as PUT, DELETE, ETC

public string Post(string uri, string data, string contentType, string method = "POST")
{
    byte[] dataBytes = Encoding.UTF8.GetBytes(data);

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
    request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
    request.ContentLength = dataBytes.Length;
    request.ContentType = contentType;
    request.Method = method;

    using(Stream requestBody = request.GetRequestStream())
    {
        requestBody.Write(dataBytes, 0, dataBytes.Length);
    }

    using(HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    using(Stream stream = response.GetResponseStream())
    using(StreamReader reader = new StreamReader(stream))
    {
        return reader.ReadToEnd();
    }
}

    

POST async
Contains the parameter method in the event you wish to use other HTTP methods such as PUT, DELETE, ETC

public async Task<string> PostAsync(string uri, string data, string contentType, string method = "POST")
{
    byte[] dataBytes = Encoding.UTF8.GetBytes(data);

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
    request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
    request.ContentLength = dataBytes.Length;
    request.ContentType = contentType;
    request.Method = method;

    using(Stream requestBody = request.GetRequestStream())
    {
        await requestBody.WriteAsync(dataBytes, 0, dataBytes.Length);
    }

    using(HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync())
    using(Stream stream = response.GetResponseStream())
    using(StreamReader reader = new StreamReader(stream))
    {
        return await reader.ReadToEndAsync();
    }
}

I’ve just fixed this by setting maxZoom in advance, then removing it afterwards. For example:

map.setOptions({ maxZoom: 15 });
map.fitBounds(bounds);
map.setOptions({ maxZoom: null });

You can use it like this:

$(document).ready(function(){

    setTimeout("swapImages()",1000);

    function swapImages(){

        var active = $('.active'); 
        var next = ($('.active').next().length > 0) ? $('.active').next() : $('#siteNewsHead img:first');

        active.removeClass('active');
        next.addClass('active');
        setTimeout("swapImages()",1000);
}

});

On Mac OS for IntelliJ v12, shut down the IDE, and then you can execute:

rm -rf ~/Library/Preferences/IdeaIC12/*

Restart the IDE, or open a pom.xml of your choosing. You will be asked whether you want to import the preferences from an existing IntelliJ instance. Select the "No, I do not have a previous IntelliJ version" radio button.

The highest-ranked answer by Mudassar Bashir using the "title" attribute seems the easiest way to do this, but it gives you less control over how the comment/tooltip is displayed.

I found that The answer by Christophe for a custom tooltip class seems to give much more control over the behavior of the comment/tooltip. Since the provided demo does not include a table, as per the question, here is a demo that includes a table.

Note that the "position" style for the parent element of the span (a in this case), must be set to "relative" so that the comment does not push the table contents around when it is displayed. It took me a little while to figure that out.

#MyTable{_x000D_
  border-style:solid;_x000D_
  border-color:black;_x000D_
  border-width:2px_x000D_
}_x000D_
_x000D_
#MyTable td{_x000D_
  border-style:solid;_x000D_
  border-color:black;_x000D_
  border-width:1px;_x000D_
  padding:3px;_x000D_
}_x000D_
_x000D_
.CellWithComment{_x000D_
  position:relative;_x000D_
}_x000D_
_x000D_
.CellComment{_x000D_
  display:none;_x000D_
  position:absolute; _x000D_
  z-index:100;_x000D_
  border:1px;_x000D_
  background-color:white;_x000D_
  border-style:solid;_x000D_
  border-width:1px;_x000D_
  border-color:red;_x000D_
  padding:3px;_x000D_
  color:red; _x000D_
  top:20px; _x000D_
  left:20px;_x000D_
}_x000D_
_x000D_
.CellWithComment:hover span.CellComment{_x000D_
  display:block;_x000D_
}

<table id="MyTable">_x000D_
  <caption>Cell 1,2 Has a Comment</caption>_x000D_
  <thead>_x000D_
    <tr>_x000D_
      <td>Heading 1</td>_x000D_
      <td>Heading 2</td>_x000D_
      <td>Heading 3</td>_x000D_
    </tr>_x000D_
  </thead>_x000D_
  <tbody>_x000D_
    <tr></tr>_x000D_
      <td>Cell 1,1</td>_x000D_
      <td class="CellWithComment">Cell 1,2_x000D_
        <span class="CellComment">Here is a comment</span>_x000D_
      </td>_x000D_
      <td>Cell 1,3</td>_x000D_
    <tr>_x000D_
      <td>Cell 2,1</td>_x000D_
      <td>Cell 2,2</td>_x000D_
      <td>Cell 2,3</td>_x000D_
    </tr>_x000D_
  </tbody>_x000D_
</table>

Ref this

SELECT * FROM product WHERE name REGEXP '[0-9]'

/*  
 *  Code Prepared by **Muhammad Mubashir**.
 *  Analyst Software Engineer.
    Email Id : [email protected]
    Skype Id : muhammad.mubashir.ansari
    Code: **August, 2011.**

    Description: **Get Updates(means New .Apk File) from IIS Server and Download it on Device SD Card,
                 and Uninstall Previous (means OLD .apk) and Install New One.
                 and also get Installed App Version Code & Version Name.**

    All Rights Reserved.
*/
package com.SelfInstall01;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import com.SelfInstall01.SelfInstall01Activity;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class SelfInstall01Activity extends Activity 
{
    class PInfo {
        private String appname = "";
        private String pname = "";
        private String versionName = "";
        private int versionCode = 0;
        //private Drawable icon;
        /*private void prettyPrint() {
            //Log.v(appname + "\t" + pname + "\t" + versionName + "\t" + versionCode);
        }*/
    }
    public int VersionCode;
    public String VersionName="";
    public String ApkName ;
    public String AppName ;
    public String BuildVersionPath="";
    public String urlpath ;
    public String PackageName;
    public String InstallAppPackageName;
    public String Text="";

    TextView tvApkStatus;
    Button btnCheckUpdates;
    TextView tvInstallVersion;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //Text= "Old".toString();
        Text= "New".toString();


        ApkName = "SelfInstall01.apk";//"Test1.apk";// //"DownLoadOnSDcard_01.apk"; //      
        AppName = "SelfInstall01";//"Test1"; //

        BuildVersionPath = "http://10.0.2.2:82/Version.txt".toString();
        PackageName = "package:com.SelfInstall01".toString(); //"package:com.Test1".toString();
        urlpath = "http://10.0.2.2:82/"+ Text.toString()+"_Apk/" + ApkName.toString();

        tvApkStatus =(TextView)findViewById(R.id.tvApkStatus);
        tvApkStatus.setText(Text+" Apk Download.".toString());


        tvInstallVersion = (TextView)findViewById(R.id.tvInstallVersion);
        String temp = getInstallPackageVersionInfo(AppName.toString());
        tvInstallVersion.setText("" +temp.toString());

        btnCheckUpdates =(Button)findViewById(R.id.btnCheckUpdates);
        btnCheckUpdates.setOnClickListener(new OnClickListener() 
        {       
            @Override
            public void onClick(View arg0) 
            {
                GetVersionFromServer(BuildVersionPath); 

                if(checkInstalledApp(AppName.toString()) == true)
                {   
                    Toast.makeText(getApplicationContext(), "Application Found " + AppName.toString(), Toast.LENGTH_SHORT).show();


                }else{
                    Toast.makeText(getApplicationContext(), "Application Not Found. "+ AppName.toString(), Toast.LENGTH_SHORT).show();          
                }               
            }
        });

    }// On Create END.

    private Boolean checkInstalledApp(String appName){
        return getPackages(appName);    
    }

    // Get Information about Only Specific application which is Install on Device.
    public String getInstallPackageVersionInfo(String appName) 
    {
        String InstallVersion = "";     
        ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */
        final int max = apps.size();
        for (int i=0; i<max; i++) 
        {
            //apps.get(i).prettyPrint();        
            if(apps.get(i).appname.toString().equals(appName.toString()))
            {
                InstallVersion = "Install Version Code: "+ apps.get(i).versionCode+
                    " Version Name: "+ apps.get(i).versionName.toString();
                break;
            }
        }

        return InstallVersion.toString();
    }
    private Boolean getPackages(String appName) 
    {
        Boolean isInstalled = false;
        ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */
        final int max = apps.size();
        for (int i=0; i<max; i++) 
        {
            //apps.get(i).prettyPrint();

            if(apps.get(i).appname.toString().equals(appName.toString()))
            {
                /*if(apps.get(i).versionName.toString().contains(VersionName.toString()) == true &&
                        VersionCode == apps.get(i).versionCode)
                {
                    isInstalled = true;
                    Toast.makeText(getApplicationContext(),
                            "Code Match", Toast.LENGTH_SHORT).show(); 
                    openMyDialog();
                }*/
                if(VersionCode <= apps.get(i).versionCode)
                {
                    isInstalled = true;

                    /*Toast.makeText(getApplicationContext(),
                            "Install Code is Less.!", Toast.LENGTH_SHORT).show();*/

                    DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() 
                    {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            switch (which)
                            {
                            case DialogInterface.BUTTON_POSITIVE:
                                //Yes button clicked
                                //SelfInstall01Activity.this.finish(); Close The App.

                                DownloadOnSDcard();
                                InstallApplication();
                                UnInstallApplication(PackageName.toString());

                                break;

                            case DialogInterface.BUTTON_NEGATIVE:
                                //No button clicked

                                break;
                            }
                        }
                    };

                    AlertDialog.Builder builder = new AlertDialog.Builder(this);
                    builder.setMessage("New Apk Available..").setPositiveButton("Yes Proceed", dialogClickListener)
                        .setNegativeButton("No.", dialogClickListener).show();

                }    
                if(VersionCode > apps.get(i).versionCode)
                {
                    isInstalled = true;
                    /*Toast.makeText(getApplicationContext(),
                            "Install Code is better.!", Toast.LENGTH_SHORT).show();*/

                    DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() 
                    {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            switch (which)
                            {
                            case DialogInterface.BUTTON_POSITIVE:
                                //Yes button clicked
                                //SelfInstall01Activity.this.finish(); Close The App.

                                DownloadOnSDcard();
                                InstallApplication();
                                UnInstallApplication(PackageName.toString());

                                break;

                            case DialogInterface.BUTTON_NEGATIVE:
                                //No button clicked

                                break;
                            }
                        }
                    };

                    AlertDialog.Builder builder = new AlertDialog.Builder(this);
                    builder.setMessage("NO need to Install.").setPositiveButton("Install Forcely", dialogClickListener)
                        .setNegativeButton("Cancel.", dialogClickListener).show();              
                }
            }
        }

        return isInstalled;
    }
    private ArrayList<PInfo> getInstalledApps(boolean getSysPackages) 
    {       
        ArrayList<PInfo> res = new ArrayList<PInfo>();        
        List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);

        for(int i=0;i<packs.size();i++) 
        {
            PackageInfo p = packs.get(i);
            if ((!getSysPackages) && (p.versionName == null)) {
                continue ;
            }
            PInfo newInfo = new PInfo();
            newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString();
            newInfo.pname = p.packageName;
            newInfo.versionName = p.versionName;
            newInfo.versionCode = p.versionCode;
            //newInfo.icon = p.applicationInfo.loadIcon(getPackageManager());
            res.add(newInfo);
        }
        return res; 
    }


    public void UnInstallApplication(String packageName)// Specific package Name Uninstall.
    {
        //Uri packageURI = Uri.parse("package:com.CheckInstallApp");
        Uri packageURI = Uri.parse(packageName.toString());
        Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
        startActivity(uninstallIntent); 
    }
    public void InstallApplication()
    {   
        Uri packageURI = Uri.parse(PackageName.toString());
        Intent intent = new Intent(android.content.Intent.ACTION_VIEW, packageURI);

//      Intent intent = new Intent(android.content.Intent.ACTION_VIEW);

        //intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        //intent.setFlags(Intent.ACTION_PACKAGE_REPLACED);

        //intent.setAction(Settings. ACTION_APPLICATION_SETTINGS);

        intent.setDataAndType
        (Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/download/"  + ApkName.toString())), 
        "application/vnd.android.package-archive");

        // Not open this Below Line Because...
        ////intent.setClass(this, Project02Activity.class); // This Line Call Activity Recursively its dangerous.

        startActivity(intent);  
    }
    public void GetVersionFromServer(String BuildVersionPath)
    {
        //this is the file you want to download from the remote server          
        //path ="http://10.0.2.2:82/Version.txt";
        //this is the name of the local file you will create
        // version.txt contain Version Code = 2; \n Version name = 2.1;             
        URL u;
        try {
            u = new URL(BuildVersionPath.toString());

            HttpURLConnection c = (HttpURLConnection) u.openConnection();           
            c.setRequestMethod("GET");
            c.setDoOutput(true);
            c.connect();

            //Toast.makeText(getApplicationContext(), "HttpURLConnection Complete.!", Toast.LENGTH_SHORT).show();  

            InputStream in = c.getInputStream();

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            byte[] buffer = new byte[1024]; //that stops the reading after 1024 chars..
            //in.read(buffer); //  Read from Buffer.
            //baos.write(buffer); // Write Into Buffer.

            int len1 = 0;
            while ( (len1 = in.read(buffer)) != -1 ) 
            {               
                baos.write(buffer,0, len1); // Write Into ByteArrayOutputStream Buffer.
            }

            String temp = "";     
            String s = baos.toString();// baos.toString(); contain Version Code = 2; \n Version name = 2.1;

            for (int i = 0; i < s.length(); i++)
            {               
                i = s.indexOf("=") + 1; 
                while (s.charAt(i) == ' ') // Skip Spaces
                {
                    i++; // Move to Next.
                }
                while (s.charAt(i) != ';'&& (s.charAt(i) >= '0' && s.charAt(i) <= '9' || s.charAt(i) == '.'))
                {
                    temp = temp.toString().concat(Character.toString(s.charAt(i))) ;
                    i++;
                }
                //
                s = s.substring(i); // Move to Next to Process.!
                temp = temp + " "; // Separate w.r.t Space Version Code and Version Name.
            }
            String[] fields = temp.split(" ");// Make Array for Version Code and Version Name.

            VersionCode = Integer.parseInt(fields[0].toString());// .ToString() Return String Value.
            VersionName = fields[1].toString();

            baos.close();
        }
        catch (MalformedURLException e) {
            Toast.makeText(getApplicationContext(), "Error." + e.getMessage(), Toast.LENGTH_SHORT).show();
            e.printStackTrace();
        } catch (IOException e) {           
            e.printStackTrace();
            Toast.makeText(getApplicationContext(), "Error." + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
            //return true;
    }// Method End.

    // Download On My Mobile SDCard or Emulator.
    public void DownloadOnSDcard()
    {
        try{
            URL url = new URL(urlpath.toString()); // Your given URL.

            HttpURLConnection c = (HttpURLConnection) url.openConnection();
            c.setRequestMethod("GET");
            c.setDoOutput(true);
            c.connect(); // Connection Complete here.!

            //Toast.makeText(getApplicationContext(), "HttpURLConnection complete.", Toast.LENGTH_SHORT).show();

            String PATH = Environment.getExternalStorageDirectory() + "/download/";
            File file = new File(PATH); // PATH = /mnt/sdcard/download/
            if (!file.exists()) {
                file.mkdirs();
            }
            File outputFile = new File(file, ApkName.toString());           
            FileOutputStream fos = new FileOutputStream(outputFile);

            //      Toast.makeText(getApplicationContext(), "SD Card Path: " + outputFile.toString(), Toast.LENGTH_SHORT).show();

            InputStream is = c.getInputStream(); // Get from Server and Catch In Input Stream Object.

            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1); // Write In FileOutputStream.
            }
            fos.close();
            is.close();//till here, it works fine - .apk is download to my sdcard in download file.
            // So please Check in DDMS tab and Select your Emulator.

            //Toast.makeText(getApplicationContext(), "Download Complete on SD Card.!", Toast.LENGTH_SHORT).show();
            //download the APK to sdcard then fire the Intent.
        } 
        catch (IOException e) 
        {
            Toast.makeText(getApplicationContext(), "Error! " +
                    e.toString(), Toast.LENGTH_LONG).show();
        }           
    }
}

Even though this was answered/accepted years ago, the presently accepted answer is only correct for one-byte-per-character encodings like iso-8859-1, or for the single-byte subsets of variable-byte character sets (like Latin characters within UTF-8). Even using multiple-byte splices instead would still only work for fixed-multibyte encodings like UTF-16. Given that now UTF-8 is well on its way to being a universal standard, and when looking at this list of languages by number of native speakers and this list of top 30 languages by native/secondary usage, it is important to point out a simple variable-byte character-friendly (not byte-based) technique, using cut -c and tr/sed with character-classes.

Compare the following which doubly fails due to two common Latin-centric mistakes/presumptions regarding the bytes vs. characters issue (one is head vs. cut, the other is [a-z][A-Z] vs. [:upper:][:lower:]):

$ printf '??? µp??? ?a µ??? sa?s???t???;\n' | \
$     head -c 1 | \
$     sed -e 's/[A-Z]/[a-z]/g'
[[unreadable binary mess, or nothing if the terminal filtered it]]

to this (note: this worked fine on FreeBSD, but both cut & tr on GNU/Linux still mangled Greek in UTF-8 for me though):

$ printf '??? µp??? ?a µ??? sa?s???t???;\n' | \
$     cut -c 1 | \
$     tr '[:upper:]' '[:lower:]'
p

Another more recent answer had already proposed "cut", but only because of the side issue that it can be used to specify arbitrary offsets, not because of the directly relevant character vs. bytes issue.

If your cut doesn't handle -c with variable-byte encodings correctly, for "the first X characters" (replace X with your number) you could try:

• sed -E -e '1 s/^(.{X}).*$/\1/' -e q - which is limited to the first line though
• head -n 1 | grep -E -o '^.{X}' - which is limited to the first line and chains two commands though
• dd - which has already been suggested in other answers, but is really cumbersome
• A complicated sed script with sliding window buffer to handle characters spread over multiple lines, but that is probably more cumbersome/fragile than just using something like dd

If your tr doesn't handle character-classes with variable-byte encodings correctly you could try:

• sed -E -e 's/[[:upper:]]/\L&/g (GNU-specific)

I think these kinds of problems are solved if we think about real life.

Bad Practice:

Example 1:

Darling everything is FINE/OK (HTTP CODE 200) - (Success):
{
  ...but I don't want us to be together anymore!!!... (Error)
  // Then everything isn't OK???
}

Example 2:

You are the best employee (HTTP CODE 200) - (Success):
{
  ...But we cannot continue your contract!!!... (Error)
  // Then everything isn't OK???
}

Good Practices:

 Darling I don't feel good (HTTP CODE 400) - (Error):
{
  ...I no longer feel anything for you, I think the best thing is to separate... (Error)
  // In this case, you are alerting me from the beginning that something is wrong ...
}

This is only my personal opinion, each one can implement it as it is most comfortable or needs.

Note: The idea for this explanation was drawn from a great friend @diosney

The XML declaration in the document map consists of the following:

The version number, ?xml version="1.0"?. 

This is mandatory. Although the number might change for future versions of XML, 1.0 is the current version.

The encoding declaration,

encoding="UTF-8"?

This is optional. If used, the encoding declaration must appear immediately after the version information in the XML declaration, and must contain a value representing an existing character encoding.

How does it work if you only are using visible-md at Col4 instead? Do you use the -lg at all? If not this might work.

<div class="container">
    <div class="row">
        <div class="col-xs-4 col-sm-2 col-md-1" align="center">
            Col1
        </div>
        <div class="col-xs-4 col-sm-2" align="center">
            Col2
        </div>
        <div class="hidden-xs col-sm-6 col-md-5" align="center">
            Col3
        </div>
        <div class="visible-md col-md-3 " align="center">
            Col4
        </div>
        <div class="col-xs-4 col-sm-2 col-md-1" align="center">
            Col5
        </div>
    </div>
</div>

Check the below code this work for me

@ManifestNoList      VARCHAR(MAX)


WHERE
    (
        ManifestNo IN (SELECT value FROM dbo.SplitString(@ManifestNoList, ','))
    )

This question seems to be the most popular one for disabling textarea wrap. However, as of April 2017 I find that IE 11 (11.0.9600) will not disable word wrap with any of the above solutions.

The only solution which does work for IE 11 is wrap="off". wrap="soft" and/or the various CSS attributes like white-space: pre alter where IE 11 chooses to wrap but it still wraps somewhere. Note that I have tested this with or without Compatibility View. IE 11 is pretty HTML 5 compatible, but not in this case.

Thus, to achieve lines which retain their whitespace and go off the right-hand side I am using:

<textarea style="white-space: pre; overflow: scroll;" wrap="off">

Fortuitously this does seem to work in Chrome & Firefox too. I am not defending the use of pre-HTML 5 wrap="off", just saying that it seems to be required for IE 11.

Another solution that it is similar to those already exposed here is this one. Just before the closing body tag place this html:

<div id="resultLoading" style="display: none; width: 100%; height: 100%; position: fixed; z-index: 10000; top: 0px; left: 0px; right: 0px; bottom: 0px; margin: auto;">
    <div style="width: 340px; height: 200px; text-align: center; position: fixed; top: 0px; left: 0px; right: 0px; bottom: 0px; margin: auto; z-index: 10; color: rgb(255, 255, 255);">
        <div class="uil-default-css">
            <img src="/images/loading-animation1.gif" style="max-width: 150px; max-height: 150px; display: block; margin-left: auto; margin-right: auto;" />
        </div>
        <div class="loader-text" style="display: block; font-size: 18px; font-weight: 300;">&nbsp;</div>
    </div>
    <div style="background: rgb(0, 0, 0); opacity: 0.6; width: 100%; height: 100%; position: absolute; top: 0px;"></div>
</div>

Finally, replace .loader-text element's content on the fly on every navigation event and turn on the #resultloading div, note that it is initially hidden.

var showLoader = function (text) {
    $('#resultLoading').show();
    $('#resultLoading').find('.loader-text').html(text);
};

jQuery(document).ready(function () {
    jQuery(window).on("beforeunload ", function () {
        showLoader('Loading, please wait...');
    });
});

This can be applied to any html based project with jQuery where you don't know which pages of your administration area will take too long to finish loading.

The gif image is 176x176px but you can use any transparent gif animation, please take into account that the image size is not important as it will be maxed to 150x150px.

Also, the function showLoader can be called on an element's click to perform an action that will further redirect the page, that is why it is provided ad an individual function. i hope this can also help anyone.

In spring3.2, new solution is introduced by: http://static.springsource.org/spring/docs/3.2.0.BUILD-SNAPSHOT/api/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.html , the below is my example:

 <mvc:annotation-driven>
   ?<mvc:message-converters>
     ??<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
       ???<property name="objectMapper">
         ????<bean
 class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
           ?????<property name="featuresToEnable">
             ??????<array>
               ???????<util:constant static-field="com.fasterxml.jackson.core.JsonParser.Feature.ALLOW_SINGLE_QUOTES" />
             ??????</array>
           ?????</property>
         ????</bean>
       ???</property>
     ??</bean>
   ?</mvc:message-converters>
 </mvc:annotation-driven>

import requests

response = requests.post('http://httpbin.org/post', data={'key1':'value1'})
print(response.request.url)
print(response.request.body)
print(response.request.headers)

Response objects have a .request property which is the original PreparedRequest object that was sent.

This question is asked in a lot of places in a lot of different ways. I originally answered it here but I feel it's relevant in this thread as well (since i ended up here when I was searching for an answer).

There is no one line solution to this problem, but this worked for my use case. The problem is, the 'View(context, attrs, defStyle)' constructor does not refer to an actual style, it wants an attribute. So, we will:

1. Define an attribute
2. Create a style that you want to use
3. Apply a style for that attribute on our theme
4. Create new instances of our view with that attribute

In 'res/values/attrs.xml', define a new attribute:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <attr name="customTextViewStyle" format="reference"/>
    ...
</resources>    

In res/values/styles.xml' I'm going to create the style I want to use on my custom TextView

<style name="CustomTextView">
    <item name="android:textSize">18sp</item>
    <item name="android:textColor">@color/white</item>
    <item name="android:paddingLeft">14dp</item>
</style>

In 'res/values/themes.xml' or 'res/values/styles.xml', modify the theme for your application / activity and add the following style:

<resources>
    <style name="AppBaseTheme" parent="android:Theme.Light">
        <item name="@attr/customTextViewStyle">@style/CustomTextView</item>
    </style>
    ... 
</resources>

Finally, in your custom TextView, you can now use the constructor with the attribute and it will receive your style

public class CustomTextView extends TextView {

    public CustomTextView(Context context) {
       super(context, null, R.attr.customTextView);
    }
}

It's worth noting that I repeatedly used customTextView in different variants and different places, but it is in no way required that the name of the view match the style or the attribute or anything. Also, this technique should work with any custom view, not just TextViews.

To do this without rewriting history (i.e. if you've already pushed the commits):

git checkout master
git revert <commitID(s)>
git checkout -b new-branch
git cherry-pick <commitID(s)>

Both branches can then be pushed without force!

I'll try and explain it as simple as possible. So there is no guarantee of the accuracy of the actual terms.

Session is where to initiate the connectivity to AWS services. E.g. following is default session that uses the default credential profile(e.g. ~/.aws/credentials, or assume your EC2 using IAM instance profile )

sqs = boto3.client('sqs')
s3 = boto3.resource('s3')

Because default session is limit to the profile or instance profile used, sometimes you need to use the custom session to override the default session configuration (e.g. region_name, endpoint_url, etc. ) e.g.

# custom resource session must use boto3.Session to do the override
my_west_session = boto3.Session(region_name = 'us-west-2')
my_east_session = boto3.Session(region_name = 'us-east-1')
backup_s3 = my_west_session.resource('s3')
video_s3 = my_east_session.resource('s3')

# you have two choices of create custom client session. 
backup_s3c = my_west_session.client('s3')
video_s3c = boto3.client("s3", region_name = 'us-east-1')

Resource : This is the high-level service class recommended to be used. This allows you to tied particular AWS resources and passes it along, so you just use this abstraction than worry which target services are pointed to. As you notice from the session part, if you have a custom session, you just pass this abstract object than worrying about all custom regions,etc to pass along. Following is a complicated example E.g.

import boto3 
my_west_session = boto3.Session(region_name = 'us-west-2')
my_east_session = boto3.Session(region_name = 'us-east-1')
backup_s3 = my_west_session.resource("s3")
video_s3 = my_east_session.resource("s3")
backup_bucket = backup_s3.Bucket('backupbucket') 
video_bucket = video_s3.Bucket('videobucket')

# just pass the instantiated bucket object
def list_bucket_contents(bucket):
   for object in bucket.objects.all():
      print(object.key)

list_bucket_contents(backup_bucket)
list_bucket_contents(video_bucket)

Client is a low level class object. For each client call, you need to explicitly specify the targeting resources, the designated service target name must be pass long. You will lose the abstraction ability.

For example, if you only deal with the default session, this looks similar to boto3.resource.

import boto3 
s3 = boto3.client('s3')

def list_bucket_contents(bucket_name):
   for object in s3.list_objects_v2(Bucket=bucket_name) :
      print(object.key)

list_bucket_contents('Mybucket') 

However, if you want to list objects from a bucket in different regions, you need to specify the explicit bucket parameter required for the client.

import boto3 
backup_s3 = my_west_session.client('s3',region_name = 'us-west-2')
video_s3 = my_east_session.client('s3',region_name = 'us-east-1')

# you must pass boto3.Session.client and the bucket name 
def list_bucket_contents(s3session, bucket_name):
   response = s3session.list_objects_v2(Bucket=bucket_name)
   if 'Contents' in response:
     for obj in response['Contents']:
        print(obj['key'])

list_bucket_contents(backup_s3, 'backupbucket')
list_bucket_contents(video_s3 , 'videobucket')