Your schema is for its target namespace http://www.example.org/Test so it defines an element with name MyElement in that target namespace http://www.example.org/Test. Your instance document however has an element with name MyElement in no namespace. That is why the validating parser tells you it can't find a declaration for that element, you haven't provided a schema for elements in no namespace.

You either need to change the schema to not use a target namespace at all or you need to change the instance to use e.g. <MyElement xmlns="http://www.example.org/Test">A</MyElement>.

_{New, detailed answer and explanation to an old, frequently asked question...}

Short answer: If you don't add elementFormDefault="qualified" to xsd:schema, then the default unqualified value means that locally declared elements are in no namespace.

There's a lot of confusion regarding what elementFormDefault does, but this can be quickly clarified with a short example...

Streamlined version of your XSD:

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
        xmlns:target="http://www.levijackson.net/web340/ns"
        targetNamespace="http://www.levijackson.net/web340/ns">
  <element name="assignments">
    <complexType>
      <sequence>
        <element name="assignment" type="target:assignmentInfo" 
                 minOccurs="1" maxOccurs="unbounded"/>
      </sequence>
    </complexType>
  </element>
  <complexType name="assignmentInfo">
    <sequence>
      <element name="name" type="string"/>
    </sequence>
    <attribute name="id" type="string" use="required"/>
  </complexType>
</schema>

Key points:

• The assignment element is locally defined.
• Elements locally defined in XSD are in no namespace by default.
  • This is because the default value for elementFormDefault is unqualified.
  • This arguably is a design mistake by the creators of XSD.
  • Standard practice is to always use elementFormDefault="qualified" so that assignment is in the target namespace as one would expect.
• It is a rarely used form attribute on xs:element declarations for which elementFormDefault establishes default values.

Seemingly Valid XML

This XML looks like it should be valid according to the above XSD:

<assignments xmlns="http://www.levijackson.net/web340/ns"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://www.levijackson.net/web340/ns try.xsd">
  <assignment id="a1">
    <name>John</name>
  </assignment>
</assignments>

Notice:

• The default namespace on assignments places assignments and all of its descendents in the default namespace (http://www.levijackson.net/web340/ns).

Perplexing Validation Error

Despite looking valid, the above XML yields the following confusing validation error:

[Error] try.xml:4:23: cvc-complex-type.2.4.a: Invalid content was found starting with element 'assignment'. One of '{assignment}' is expected.

Notes:

• You would not be the first developer to curse this diagnostic that seems to say that the content is invalid because it expected to find an assignment element but it actually found an assignment element. (WTF)
• What this really means: The { and } around assignment means that validation was expecting assignment in no namespace here. Unfortunately, when it says that it found an assignment element, it doesn't mention that it found it in a default namespace which differs from no namespace.

Solution

• Vast majority of the time: Add elementFormDefault="qualified" to the xsd:schema element of the XSD. This means valid XML must place elements in the target namespace when locally declared in the XSD; otherwise, valid XML must place locally declared elements in no namespace.
• Tiny minority of the time: Change the XML to comply with the XSD's requirement that assignment be in no namespace. This can be achieved, for example, by adding xmlns="" to the assignment element.

_{Credits: Thanks to Michael Kay for helpful feedback on this answer.}

cvc-elt.1: Cannot find the declaration of element 'Root'. [7]

Your schemaLocation attribute on the root element should be xsi:schemaLocation, and you need to fix it to use the right namespace.

You should probably change the targetNamespace of the schema and the xmlns of the document to http://myNameSpace.com (since namespaces are supposed to be valid URIs, which Test.Namespace isn't, though urn:Test.Namespace would be ok). Once you do that it should find the schema. The point is that all three of the schema's target namespace, the document's namespace, and the namespace for which you're giving the schema location must be the same.

(though it still won't validate as your <element2> contains an <element3> in the document where the schema expects item)

there are two properties of urllib.URLopener() namely:
addheaders = [('User-Agent', 'Python-urllib/1.17'), ('Accept', '*/*')] and
version = 'Python-urllib/1.17'.
To fool the website you need to changes both of these values to an accepted User-Agent. for e.g.
Chrome browser : 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.149 Safari/537.36'
Google bot : 'Googlebot/2.1'
like this

import urllib
page_extractor=urllib.URLopener()  
page_extractor.addheaders = [('User-Agent', 'Googlebot/2.1'), ('Accept', '*/*')]  
page_extractor.version = 'Googlebot/2.1'
page_extractor.retrieve(<url>, <file_path>)

changing just one property does not work because the website marks it as a suspicious request.

To give you a better understanding of why this happens, I'd like to expand upon @r-samuel-klatchko's answer a bit.

When you call malloc, what is really happening is a bit more complicated than just giving you a chunk of memory to play with. Under the hood, malloc also keeps some housekeeping information about the memory it has given you (most importantly, its size), so that when you call free, it knows things like how much memory to free. This information is commonly kept right before the memory location returned to you by malloc. More exhaustive information can be found on the internet™, but the (very) basic idea is something like this:

+------+-------------------------------------------------+
+ size |                  malloc'd memory                +
+------+-------------------------------------------------+
       ^-- location in pointer returned by malloc

Building on this (and simplifying things greatly), when you call malloc, it needs to get a pointer to the next part of memory that is available. One very simple way of doing this is to look at the previous bit of memory it gave away, and move size bytes further down (or up) in memory. With this implementation, you end up with your memory looking something like this after allocating p1, p2 and p3:

+------+----------------+------+--------------------+------+----------+
+ size |                | size |                    | size |          +
+------+----------------+------+--------------------+------+----------+
       ^- p1                   ^- p2                       ^- p3

So, what is causing your error?

Well, imagine that your code erroneously writes past the amount of memory you've allocated (either because you allocated less than you needed as was your problem or because you're using the wrong boundary conditions somewhere in your code). Say your code writes so much data to p2 that it starts overwriting what is in p3's size field. When you now next call malloc, it will look at the last memory location it returned, look at its size field, move to p3 + size and then start allocating memory from there. Since your code has overwritten size, however, this memory location is no longer after the previously allocated memory.

Needless to say, this can wreck havoc! The implementors of malloc have therefore put in a number of "assertions", or checks, that try to do a bunch of sanity checking to catch this (and other issues) if they are about to happen. In your particular case, these assertions are violated, and thus malloc aborts, telling you that your code was about to do something it really shouldn't be doing.

As previously stated, this is a gross oversimplification, but it is sufficient to illustrate the point. The glibc implementation of malloc is more than 5k lines, and there have been substantial amounts of research into how to build good dynamic memory allocation mechanisms, so covering it all in a SO answer is not possible. Hopefully this has given you a bit of a view of what is really causing the problem though!

This worked form me.. PHP Code on page.php

 $query_de="sql statements here";
 $sql_de = sqlsrv_query($conn,$query_de);
      if ($sql_de)
      {
        echo "SQLSuccess";
       }
         exit();

and then AJAX Code has bellow

jQuery.ajax({
                    url  : "page.php",
                    type : "POST",
                    data : {
                            buttonsave   : 1,
                            var1         : val1,
                            var2         : val2,
                              },
                  success:function(data)
                           {
                     if(jQuery.trim(data) === "SQLSuccess")
                                   {
                           alert("Se agrego correctamente");
                          // alert(data);
                                      } else { alert(data);}
                              },
                   error: function(error)
                           {
                    alert("Error AJAX not working: "+ error );
                              } 
               }); 

NOTE: the word 'SQLSuccess' must be received from PHP

These answers were helpful in solving a similar issue while trying to define a named range with Workbook scope. The "ah-HA!" for me is to use the Names Collection which is relative to the whole Workbook! This may be restating the obvious to many, but it wasn't clearly stated in my research, so I share for other's with similar questions.

' Local / Worksheet only scope
Worksheets("Sheet2").Names.Add Name:="a_test_rng1", RefersTo:=Range("A1:A4")

' Global / Workbook scope
ThisWorkbook.Names.Add Name:="a_test_rng2", RefersTo:=Range("B1:b4") 

If you look at your list of names when Sheet2 is active, both ranges are there, but switch to any other sheet, and "a_test_rng1" is not present.

Now I can happily generate a named range in my code with what ever scope I deem appropriate. No need mess around with the name manager or a plug in.

Aside, the name manager in Excel Mac 2011 is a mess, but I did discover that while there are no column labels to tell you what you're looking at while viewing your list of named ranges, if there is a sheet listed beside the name, that name is scoped to worksheet / local. See screenshot attached.

Full credit to this article for putting together the pieces.

Use Number from the numbers module to test isinstance(n, Number) (available since 2.6).

isinstance(n, numbers.Number)

Here it is in action with various kinds of numbers and one non-number:

>>> from numbers import Number
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2,0), Fraction(2,1), '2']:
...     print '%15s %s' % (n.__repr__(), isinstance(n, Number))
              2 True
            2.0 True
 Decimal('2.0') True
         (2+0j) True
 Fraction(2, 1) True
            '2' False

This is, of course, contrary to duck typing. If you are more concerned about how an object acts rather than what it is, perform your operations as if you have a number and use exceptions to tell you otherwise.

@balusC I did as you wrote . In my case , I've added cookie information to be able to reuse the session .

   // get the cookie if need
    String cookies = conn.getHeaderField("Set-Cookie");

    // open the new connnection again
    conn = (HttpURLConnection) new URL(newUrl).openConnection();
    conn.setRequestProperty("Cookie", cookies);

Replace double quotes with single ones:

INSERT
INTO    MY.LOGFILE
        (id,severity,category,logdate,appendername,message,extrainfo)
VALUES  (
       'dee205e29ec34',
       'FATAL',
       'facade.uploader.model',
       '2013-06-11 17:16:31',
       'LOGDB',
       NULL,
       NULL
       )

In SQL, double quotes are used to mark identifiers, not string constants.

new SimpleDateFormat("EEE MMM dd kk:mm:ss ZZZ yyyy");

and

new SimpleDateFormat("EEE MMM dd kk:mm:ss Z yyyy");

still runs. However, if your code throws an exception it is because your tool or jdk or any other reason. Because I got same error in my IDE but please check these http://ideone.com/Y2cRr (online ide) with ZZZ and with Z

output is : Thu Sep 28 11:29:30 GMT 2000

If you have a function like:

int foo()
{
    // more stuff
    foo();
}

Then foo() will keep calling itself, getting deeper and deeper, and when the space used to keep track of what functions you're in is filled up, you get the stack overflow error.

Wrap your input stream in a buffered reader then use the read method to read one byte at a time until the end of stream.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Reader {

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

        BufferedReader buffer = new BufferedReader(
                 new InputStreamReader(System.in));
        int c = 0;
        while((c = buffer.read()) != -1) {
            char character = (char) c;          
            System.out.println(character);          
        }       
    }   
}

You can use the following wrap to make sync call

this.setState((state =>{_x000D_
  return{_x000D_
    something_x000D_
  }_x000D_
})

Here's a function to upscale or downscale an image by desired width or height while maintaining aspect ratio

# Resizes a image and maintains aspect ratio
def maintain_aspect_ratio_resize(image, width=None, height=None, inter=cv2.INTER_AREA):
    # Grab the image size and initialize dimensions
    dim = None
    (h, w) = image.shape[:2]

    # Return original image if no need to resize
    if width is None and height is None:
        return image

    # We are resizing height if width is none
    if width is None:
        # Calculate the ratio of the height and construct the dimensions
        r = height / float(h)
        dim = (int(w * r), height)
    # We are resizing width if height is none
    else:
        # Calculate the ratio of the width and construct the dimensions
        r = width / float(w)
        dim = (width, int(h * r))

    # Return the resized image
    return cv2.resize(image, dim, interpolation=inter)

Usage

import cv2

image = cv2.imread('1.png')
cv2.imshow('width_100', maintain_aspect_ratio_resize(image, width=100))
cv2.imshow('width_300', maintain_aspect_ratio_resize(image, width=300))
cv2.waitKey()

Using this example image

Simply downscale to width=100 (left) or upscale to width=300 (right)

write in CSS

.form-group.required .control-label:after {content:"*";color:red;}

and HTML

<div class="form-group required">

    <label class="control-label">Name:</label>

    <input type="text">

</div>

Another aspect is security (obfuscation). Once a piece of code is extracted from the main application and put in a "separated" Dynamic-Link Library, it is easier to attack, analyse (reverse-engineer) the code, since it has been isolated. When the same piece of code is kept in a LIB Library, it is part of the compiled (linked) target application, and this thus harder to isolate (differentiate) that piece of code from the rest of the target binaries.

This works in bash and zsh, tested on Linux and OS X:

sed 's/regexp/\'$'\n/g'

In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to be escaped with a backslash, hence the \ before $. And finally, the dollar sign itself shouldn't be quoted so that it's interpreted by the shell, therefore we close the quote before the $ and then open it again.

Edit: As suggested in the comments by @mklement0, this works as well:

sed $'s/regexp/\\\n/g'

What happens here is: the entire sed command is now a C-style string, which means the backslash that sed requires to be placed before the new line literal should now be escaped with another backslash. Though more readable, in this case you won't be able to do shell string substitutions (without making it ugly again.)

A module could be in the following states:

• imported
• available on disk (or local network)
• available in online gallery

If you just want to have the darn thing available in a PowerShell session for use, here is a function that will do that or exit out if it cannot get it done:

function Load-Module ($m) {

    # If module is imported say that and do nothing
    if (Get-Module | Where-Object {$_.Name -eq $m}) {
        write-host "Module $m is already imported."
    }
    else {

        # If module is not imported, but available on disk then import
        if (Get-Module -ListAvailable | Where-Object {$_.Name -eq $m}) {
            Import-Module $m -Verbose
        }
        else {

            # If module is not imported, not available on disk, but is in online gallery then install and import
            if (Find-Module -Name $m | Where-Object {$_.Name -eq $m}) {
                Install-Module -Name $m -Force -Verbose -Scope CurrentUser
                Import-Module $m -Verbose
            }
            else {

                # If module is not imported, not available and not in online gallery then abort
                write-host "Module $m not imported, not available and not in online gallery, exiting."
                EXIT 1
            }
        }
    }
}

Load-Module "ModuleName" # Use "PoshRSJob" to test it out

One liner with .apply() method is following:

df['color'] = df['Set'].apply(lambda set_: 'green' if set_=='Z' else 'red')

After that, df data frame looks like this:

>>> print(df)
  Type Set  color
0    A   Z  green
1    B   Z  green
2    B   X    red
3    C   Y    red

The numeric type overview for MySQL states: BOOL, BOOLEAN: These types are synonyms for TINYINT(1). A value of zero is considered false. Nonzero values are considered true.

See here: https://dev.mysql.com/doc/refman/5.7/en/numeric-type-overview.html

Change the active scheme Device from Simulator to Generic iOS Device

I ran into this issue with Python 3.6 and Python 3.7. The top answer (running pip install --upgrade pip enum34) did not solve the problem.

I don't know why, but the reason why this error happen is because enum.py was missing from .venv/myvenv/lib/python3.7/.

But the file was in /usr/lib/python3.7/.

Following this answer, I just created the symbolic link by myself :

ln -s /usr/lib/python3.7/enum.py .venv/myvenv/lib/python3.7/enum.py

I was too getting this error, but i have solved this using below concept.

1. Restart your intellij idea community edition.
2. After that, go on the right hand corner to set the configuration for java.

3. choose configuration setting for all module. then re-run the code. It will work.

This error comes because of not configuring java properly.

Be careful, because none of these methods work with a large number of files. Personally, I used this line:

for i in $(ls | grep ".txt");do cat $i >> output.txt;done

EDIT: As someone said in the comments, you can replace $(ls | grep ".txt") with $(ls *.txt)

EDIT: thanks to @gnourf_gnourf expertise, the use of glob is the correct way to iterate over files in a directory. Consequently, blasphemous expressions like $(ls | grep ".txt") must be replaced by *.txt (see the article here).

Good Solution

for i in *.txt;do cat $i >> output.txt;done

there is few things that you can do

SELECT GROUP_CONCAT(CAST(name AS CHAR))
FROM product
WHERE  id   IN (12345,12346,12347)

If you want to order by the query you can order by cast as well like below

SELECT GROUP_CONCAT(name ORDER BY name))
FROM product
WHERE id   IN (12345,12346,12347)

as it says on this blog

http://www.kdecom.com/mysql-group-concat-blob-bug-solved/

By using AppCompat textAllCaps in Android Apps supporting older API's (less than 14)

There is one UI widgets that ships with AppCompat named CompatTextView is a Custom TextView extension that adds support for textAllCaps

For newer android API > 14 you can use :

android:textAllCaps="true"

A simple example:

<android.support.v7.internal.widget.CompatTextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:textAllCaps="true"/>

Source:developer.android

Update:

As it so happens CompatTextView was replaced by AppCompatTextView in latest appcompat-v7 library ~ Eugen Pechanec

You could write a function that converts a scientific notation to regular, something like

def sc2std(x):
    s = str(x)
    if 'e' in s:
        num,ex = s.split('e')
        if '-' in num:
            negprefix = '-'
        else:
            negprefix = ''
        num = num.replace('-','')
        if '.' in num:
            dotlocation = num.index('.')
        else:
            dotlocation = len(num)
        newdotlocation = dotlocation + int(ex)
        num = num.replace('.','')
        if (newdotlocation < 1):
            return negprefix+'0.'+'0'*(-newdotlocation)+num
        if (newdotlocation > len(num)):
            return negprefix+ num + '0'*(newdotlocation - len(num))+'.0'
        return negprefix + num[:newdotlocation] + '.' + num[newdotlocation:]
    else:
        return s

This is my PURE CSS solution :)

Add, scrolling yes to your iframe.

<iframe src="your iframe link" width="100%" scrolling="yes" frameborder="0"></iframe>

The trick :)

<style>
    html, body, iframe { height: 100%; }
    html { overflow: hidden; }
</style>

You don't need to worry about responsiveness :)

all these answers work fine BUT add a rect to an image. Suppose You have a shape (in my case a butterfly) and You want to add a border (a red border):

we need two steps: 1) take the image, convert to CGImage, pass to a function to draw offscreen in a context using CoreGraphics, and give back a new CGImage

2) convert to uiimage back and draw:

// remember to release object!
+ (CGImageRef)createResizedCGImage:(CGImageRef)image toWidth:(int)width
andHeight:(int)height
{
// create context, keeping original image properties
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, width,
                                             height,
                                             8
                                             4 * width,
                                             colorspace,
                                             kCGImageAlphaPremultipliedFirst
                                             );

 CGColorSpaceRelease(colorspace);

if(context == NULL)
    return nil;

// draw image to context (resizing it)
CGContextSetInterpolationQuality(context, kCGInterpolationDefault);

CGSize offset = CGSizeMake(2,2);
CGFloat blur = 4;   
CGColorRef color = [UIColor redColor].CGColor;
CGContextSetShadowWithColor ( context, offset, blur, color);

CGContextDrawImage(context, CGRectMake(0, 0, width, height), image);
// extract resulting image from context
CGImageRef imgRef = CGBitmapContextCreateImage(context);
CGContextRelease(context);
return imgRef;

}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

CGRect frame = CGRectMake(0,0,160, 122);
UIImage * img = [UIImage imageNamed:@"butterfly"]; // take low res OR high res, but frame should be the low-res one.
imgV = [[UIImageView alloc]initWithFrame:frame];
[imgV setImage: img];
imgV.center = self.view.center;
[self.view addSubview: imgV];

frame.size.width = frame.size.width * 1.3;
frame.size.height = frame.size.height* 1.3;
CGImageRef cgImage =[ViewController createResizedCGImage:[img CGImage] toWidth:frame.size.width andHeight: frame.size.height ];

imgV2 = [[UIImageView alloc]initWithFrame:frame];
[imgV2 setImage: [UIImage imageWithCGImage:cgImage] ];

// release:
if (cgImage) CGImageRelease(cgImage);

[self.view addSubview: imgV2];

}

I added a normal butterfly and a red-bordered bigger butterfly.

Apart from above method, if you have opscenter installed,

1. Go to data tab > there you will see all keyspcaces created by you and some system keyspaces.
2. You can see all tables under individual keyspaces and also replicator factor for keyspace.

for more details check below link. https://docs.datastax.com/en/opscenter/6.1/opsc/online_help/opscDataModelingManagingKeyspace_t.html

In python 3 urllib2 was merged into urllib. See also another Stack Overflow question and the urllib PEP 3108.

To make Python 2 code work in Python 3:

try:
    import urllib.request as urllib2
except ImportError:
    import urllib2

I'm adding this answer because I don't see it here.

One way is to put a '+' character in front of the value

example:

var x = +'11.5' + +'3.5'

x === 15

I have found this to be the simplest way

In this case, the line:

dots = document.getElementById("txt").value;

could be changed to

dots = +(document.getElementById("txt").value);

to force it to a number

NOTE:

+'' === 0
+[] === 0
+[5] === 5
+['5'] === 5

Are you able to hit that URL by browser or by PHP script? The error shown is that you could not connect. So first confirm that the URL is accessible.

Regular expressions allow for everything that LIKE allows for, and much more, but have a completely different syntax. However, since the rules for LIKE are so simple(where % means zero-or-more characters and _ means one character), and both LIKE arguments and regular expressions are expressed in strings, we can create a regular expression that takes a LIKE argument (e.g. abc_ef% *usd) and turn it into the equivalent regular expression (e.g. \Aabc.ef.* \*usd\z):

@"\A" + new Regex(@"\.|\$|\^|\{|\[|\(|\||\)|\*|\+|\?|\\").Replace(toFind, ch => @"\" + ch).Replace('_', '.').Replace("%", ".*") + @"\z"

From that we can build a Like() method:

public static class MyStringExtensions
{
  public static bool Like(this string toSearch, string toFind)
  {
    return new Regex(@"\A" + new Regex(@"\.|\$|\^|\{|\[|\(|\||\)|\*|\+|\?|\\").Replace(toFind, ch => @"\" + ch).Replace('_', '.').Replace("%", ".*") + @"\z", RegexOptions.Singleline).IsMatch(toSearch);
  }
}

And hence:

bool willBeTrue = "abcdefg".Like("abcd_fg");
bool willAlsoBeTrue = "abcdefg".Like("ab%f%");
bool willBeFalse = "abcdefghi".Like("abcd_fg");

The output of the error, is because you call an index of the Array that does not exist, for example

$arr = Array(1,2,3);
echo $arr[3]; 
// Error PHP Notice:  Undefined offset: 1 pointer 3 does not exist, the array only has 3 elements but starts at 0 to 2, not 3!

$("#"+styleTarget).css('font-size', newFontSize);

I had the same issue with my app by iPads (armv7, armv7s, amr64) only by presenting another UIViewController and after dismiss them goes nav bar under status bar... I spend a lot of time to find any solution for that. I'm using storyboard and in InterfaceBuilder for UIViewController which makes terrible i set Presentation from FullScreen -> Current Context and it fix this issue. It works in my app only for iPads => iOS8.0 (testing with iOS8.1) and for iPads with iOS 7.1 not work!!

• if you unable to find assembly reference from when (Right click on reference ->add required assembly)

try this Package manager console
Install-Package System.Net.Http.Formatting.Extension -Version 5.2.3 and then add by using add reference .

Just pass the list to np.array:

a = np.array(a)

You can also take this opportunity to set the dtype if the default is not what you desire.

a = np.array(a, dtype=...)

Another option is to use Apache Commons StrBuilder, which has the functionality that's lacking in StringBuilder.

StrBuilder.appendLn()

As of version 3.6 StrBuilder has been deprecated in favour of TextStringBuilder which has the same functionality

import csv
cols = [' V1', ' I1'] # define your columns here, check the spaces!
data = [[] for col in cols] # this creates a list of **different** lists, not a list of pointers to the same list like you did in [[]]*len(positions) 
with open('data.csv', 'r') as f:
    for rec in csv.DictReader(f):
        for l, col in zip(data, cols):
            l.append(float(rec[col]))
print data

# [[3.0, 3.0], [0.01, 0.01]]

You could try the same address with HTTP instead of HTTPS. Be aware that this does use HTTP instead of HTTPS and only some sites might support this method.

Example address: https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso

wget http://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso

*notice the http:// instead of https://.

This is probably not recommended though :)

If you can, try use curl.

EDIT:

FYI an example with username (and prompt for password) would be:

curl --user $USERNAME -O http://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso

Where -O is

 -O, --remote-name
              Write output to a local file named like the remote file we get. (Only the file part of the remote file is used, the path is cut off.)

You can use this to replace the function if it doesn't exist:

<script>
if (!Array.prototype.indexOf) {
    Array.prototype.indexOf = function(elt /*, from*/) {
        var len = this.length >>> 0;

        var from = Number(arguments[1]) || 0;
        from = (from < 0) ? Math.ceil(from) : Math.floor(from);
        if (from < 0)
            from += len;

        for (; from < len; from++) {
            if (from in this && this[from] === elt)
                return from;
        }
        return -1;
    };
}
</script>

If you wait until the page is loaded, and then set the button's display to none, that should work. Then you can make it visible at a later point.

On the side note: if you have all of the files locally (not only wsdl file but also xsd files) you can invoke wsdl.exe in that manner:

wsdl.exe [path to your wsdl file] [paths to xsd files imported by wsdl]

That way wsdl.exe can resolve all dependecies locally and correctly generates proxy class.

Maybe it will save somebody some time - it solves "missing type" error when service is not avaliable online.

You can have multiple CTEs in one query, as well as reuse a CTE:

WITH    cte1 AS
        (
        SELECT  1 AS id
        ),
        cte2 AS
        (
        SELECT  2 AS id
        )
SELECT  *
FROM    cte1
UNION ALL
SELECT  *
FROM    cte2
UNION ALL
SELECT  *
FROM    cte1

Note, however, that SQL Server may reevaluate the CTE each time it is accessed, so if you are using values like RAND(), NEWID() etc., they may change between the CTE calls.

From RFC 1945 (HTTP/1.0) and RFC 2617 (HTTP Authentication referenced by HTTP/1.1)

The realm attribute (case-insensitive) is required for all authentication schemes which issue a challenge. The realm value (case-sensitive), in combination with the canonical root URL of the server being accessed, defines the protection space. These realms allow the protected resources on a server to be partitioned into a set of protection spaces, each with its own authentication scheme and/or authorization database. The realm value is a string, generally assigned by the origin server, which may have additional semantics specific to the authentication scheme.

In short, pages in the same realm should share credentials. If your credentials work for a page with the realm "My Realm", it should be assumed that the same username and password combination should work for another page with the same realm.

Read the documentation.

http://www.postgresql.org/docs/9.1/static/functions-datetime.html

I used a query like that:

WHERE
(
    date_trunc('day',table1.date_eval) = '2015-02-09'
)

or

WHERE(date_trunc('day',table1.date_eval) >='2015-02-09'AND date_trunc('day',table1.date_eval) <'2015-02-09')    

Juanitos Ingenier.

your syntax is wrong:

update mytable SET title = TRIM(TRAILING '\n' FROM title)

Addition:

If the newline character is at the start of the field:

update mytable SET title = TRIM(LEADING '\n' FROM title)

Go to "Tomcat Directory"/bin directory

if Linux then create setenv.sh else if Windows then create setenv.bat

content of setenv.* file :

export CATALINA_OPTS="$CATALINA_OPTS -Xms512m"
export CATALINA_OPTS="$CATALINA_OPTS -Xmx8192m"
export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=256m"

after this restart tomcat with new params.

explanation and full information is here

http://crunchify.com/how-to-change-jvm-heap-setting-xms-xmx-of-tomcat/

This is a one line way to do it, but it's not very readable. Recommend using two lines instead.

use_remaining_hash_for_something(Proc.new { hash.delete(:key); hash }.call)

In JavaScript it has no special significance (no more than a or Q anyway). It is just an uninformative variable name.

In jQuery the variable is assigned a copy of the jQuery function. This function is heavily overloaded and means half a dozen different things depending on what arguments it is passed. In this particular example you are passing it a string that contains a selector, so the function means "Create a jQuery object containing the element with the id Text".

In newer versions of Eclipse the global configuration file can be set in

Windows > Preferences > Maven > User Settings > Global Settings

Don't beat me why global settings can be configured in user settings... Probably because of the same reason why you need to press "Start" to shutdown your PC on Windows... :D

There is far more efficient answer: just put the following instructions in the Form_Load:

Me.MinimumSize = New Size(Width, Height)
Me.MaximumSize = Me.MinimumSize

As described by the link I've given in comment, this

$('p[MyTag]').each(function(index) {
  document.write(index + ': ' + $(this).text() + "<br>");});

works (playable example).

Whatever you want to use from another module, just put it in the export array. Like this-

 @NgModule({
  declarations: [TaskCardComponent],
  exports: [TaskCardComponent],
  imports: [MdCardModule]
})

How I solved it.

1. Open project (!) "Properties", choose "Application", select targeting framework ".Net Framework 4.5"
2. Right click on your project -> Add reference
3. Make sure that in "Assemblies" -> "Extensions" option "System.Net.Http" is unchecked
4. Go to "Assemblies" -> "Framework" and select "System.Net.Http" and "System.Net.Http" options
5. That`s all!

In my case i had at the beginning .Net 4.0 and "Assemblies" -> "Extensions" option "System.Net.Http" with version 2.0.0.0. After my actions "Assemblies" -> "Framework" options "System.Net.Http" and "System.Net.Http" had the same 4.0.0.0 version.

To list all of the packages in the active environment, use:

conda list

To list all of the packages in a deactivated environment, use:

conda list -n myenv

I performed tests on Eclipse vs Netbeans 8.0.2, both with Java version 1.8; I used System.nanoTime() for measurements.

Eclipse:

I got the same time on both cases - around 1.564 seconds.

Netbeans:

• Using "#": 1.536 seconds
• Using "B": 44.164 seconds

So, it looks like Netbeans has bad performance on print to console.

After more research I realized that the problem is line-wrapping of the max buffer of Netbeans (it's not restricted to System.out.println command), demonstrated by this code:

for (int i = 0; i < 1000; i++) {
    long t1 = System.nanoTime();
    System.out.print("BBB......BBB"); \\<-contain 1000 "B"
    long t2 = System.nanoTime();
    System.out.println(t2-t1);
    System.out.println("");
}

The time results are less then 1 millisecond every iteration except every fifth iteration, when the time result is around 225 millisecond. Something like (in nanoseconds):

BBB...31744
BBB...31744
BBB...31744
BBB...31744
BBB...226365807
BBB...31744
BBB...31744
BBB...31744
BBB...31744
BBB...226365807
.
.
.

And so on..

Summary:

1. Eclipse works perfectly with "B"
2. Netbeans has a line-wrapping problem that can be solved (because the problem does not occur in eclipse)(without adding space after B ("B ")).

check before delete the user otherwise throws error exeption

$user=User::find($request->id);
  
   if($user)
   {
   // return $user;           <------------------------user exist
       if($user->delete()){
         return 'user deleted';
         }
    else{
       return "something wrong";
        }   

   }
  else{
     return "user not exist";// <--------------------user not exist
    }

This is because in this case the char type is signed on your system^*. When this happens, the data gets sign-extended during the default conversions while passing the data to the function with variable number of arguments. Since 212 is greater than 0x80, it's treated as negative, %u interprets the number as a large positive number:

212 = 0xD4

When it is sign-extended, FFs are pre-pended to your number, so it becomes

0xFFFFFFD4 = 4294967252

which is the number that gets printed.

Note that this behavior is specific to your implementation. According to C99 specification, all char types are promoted to (signed) int, because an int can represent all values of a char, signed or unsigned:

6.1.1.2: If an int can represent all values of the original type, the value is converted to an int; otherwise, it is converted to an unsigned int.

This results in passing an int to a format specifier %u, which expects an unsigned int.

To avoid undefined behavior in your program, add explicit type casts as follows:

unsigned char ch = (unsigned char)212;
printf("%u", (unsigned int)ch);

android:inputMethod

is deprecated, instead use inputType :

 android:inputType="numberPassword"

In Swift the isEmpty function it will check if the string is empty.

 if username.isEmpty || password.isEmpty {
      println("Sign in failed. Empty character")
 }

ssh-keygen -R hostname

This deletes the offending key from the known_hosts

The man page entry reads:

-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).

#define USER_IS(c0,c1,c2,c3,c4,c5,c6,c7,c8,c9)\
ch0==c0 && ch1==c1 && ch2==c2 && ch3==c3 && ch4==c4 && ch5==c5 && ch6==c6 && ch7==c7 ;

#define ch0 'j'
#define ch1 'a'
#define ch2 'c'
#define ch3 'k'

#if USER_IS('j','a','c','k',0,0,0,0)
#define USER_VS "queen"
#elif USER_IS('q','u','e','e','n',0,0,0)
#define USER_VS "jack"
#endif

it basically a fixed length static char array initialized manually instead of a variable length static char array initialized automatically always ending with a terminating null char

I just added the oracle folder to my environmental variables and that fixed my identical error

A quick google search yields kludgey solutions such as this that use setjmp/longjmp as others have mentioned. Nothing as straightforward and elegant as C++/Java's try/catch. I'm rather partial to Ada's exception handling myself.

Check everything with if statements :)

value="<?php echo htmlspecialchars($name); ?>"

below code is working for both with header and without header to print log request & response. Note: Just comment .addHeader() line if are not using header.

HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(interceptor)
                //.addInterceptor(REWRITE_CACHE_CONTROL_INTERCEPTOR)
                .addNetworkInterceptor(new Interceptor() {

                    @Override

                    public okhttp3.Response intercept(Chain chain) throws IOException {
                        Request request = chain.request().newBuilder()
                                // .addHeader(Constant.Header, authToken)
                                   .build();
                        return chain.proceed(request);
                    }
                }).build();

        final Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(Constant.baseUrl)
                .client(client) // This line is important
                .addConverterFactory(GsonConverterFactory.create())
                .build();

Just check my Code and Sniper and demo link :

    // Basice Code keep it 
    $(document).ready(function () {
        $(document).on("scroll", onScroll);

        //smoothscroll
        $('a[href^="#"]').on('click', function (e) {
            e.preventDefault();
            $(document).off("scroll");

            $('a').each(function () {
                $(this).removeClass('active');
            })
            $(this).addClass('active');

            var target = this.hash,
                menu = target;
            $target = $(target);
            $('html, body').stop().animate({
                'scrollTop': $target.offset().top+2
            }, 500, 'swing', function () {
                window.location.hash = target;
                $(document).on("scroll", onScroll);
            });
        });
    });

// Use Your Class or ID For Selection 

    function onScroll(event){
        var scrollPos = $(document).scrollTop();
        $('#menu-center a').each(function () {
            var currLink = $(this);
            var refElement = $(currLink.attr("href"));
            if (refElement.position().top <= scrollPos && refElement.position().top + refElement.height() > scrollPos) {
                $('#menu-center ul li a').removeClass("active");
                currLink.addClass("active");
            }
            else{
                currLink.removeClass("active");
            }
        });
    }

demo live

$(document).ready(function () {_x000D_
    $(document).on("scroll", onScroll);_x000D_
    _x000D_
    //smoothscroll_x000D_
    $('a[href^="#"]').on('click', function (e) {_x000D_
        e.preventDefault();_x000D_
        $(document).off("scroll");_x000D_
        _x000D_
        $('a').each(function () {_x000D_
            $(this).removeClass('active');_x000D_
        })_x000D_
        $(this).addClass('active');_x000D_
      _x000D_
        var target = this.hash,_x000D_
            menu = target;_x000D_
        $target = $(target);_x000D_
        $('html, body').stop().animate({_x000D_
            'scrollTop': $target.offset().top+2_x000D_
        }, 500, 'swing', function () {_x000D_
            window.location.hash = target;_x000D_
            $(document).on("scroll", onScroll);_x000D_
        });_x000D_
    });_x000D_
});_x000D_
_x000D_
function onScroll(event){_x000D_
    var scrollPos = $(document).scrollTop();_x000D_
    $('#menu-center a').each(function () {_x000D_
        var currLink = $(this);_x000D_
        var refElement = $(currLink.attr("href"));_x000D_
        if (refElement.position().top <= scrollPos && refElement.position().top + refElement.height() > scrollPos) {_x000D_
            $('#menu-center ul li a').removeClass("active");_x000D_
            currLink.addClass("active");_x000D_
        }_x000D_
        else{_x000D_
            currLink.removeClass("active");_x000D_
        }_x000D_
    });_x000D_
}

body, html {_x000D_
    margin: 0;_x000D_
    padding: 0;_x000D_
    height: 100%;_x000D_
    width: 100%;_x000D_
}_x000D_
.menu {_x000D_
    width: 100%;_x000D_
    height: 75px;_x000D_
    background-color: rgba(0, 0, 0, 1);_x000D_
    position: fixed;_x000D_
    background-color:rgba(4, 180, 49, 0.6);_x000D_
    -webkit-transition: all 0.4s ease;_x000D_
    -moz-transition: all 0.4s ease;_x000D_
    -o-transition: all 0.4s ease;_x000D_
    transition: all 0.4s ease;_x000D_
}_x000D_
.light-menu {_x000D_
    width: 100%;_x000D_
    height: 75px;_x000D_
    background-color: rgba(255, 255, 255, 1);_x000D_
    position: fixed;_x000D_
    background-color:rgba(4, 180, 49, 0.6);_x000D_
    -webkit-transition: all 0.4s ease;_x000D_
    -moz-transition: all 0.4s ease;_x000D_
    -o-transition: all 0.4s ease;_x000D_
    transition: all 0.4s ease;_x000D_
}_x000D_
#menu-center {_x000D_
    width: 980px;_x000D_
    height: 75px;_x000D_
    margin: 0 auto;_x000D_
}_x000D_
#menu-center ul {_x000D_
    margin: 0 0 0 0;_x000D_
}_x000D_
#menu-center ul li a{_x000D_
  padding: 32px 40px;_x000D_
}_x000D_
#menu-center ul li {_x000D_
    list-style: none;_x000D_
    margin: 0 0 0 -4px;_x000D_
    display: inline;_x000D_
_x000D_
}_x000D_
.active, #menu-center ul li a:hover  {_x000D_
    font-family:'Droid Sans', serif;_x000D_
    font-size: 14px;_x000D_
    color: #fff;_x000D_
    text-decoration: none;_x000D_
    line-height: 50px;_x000D_
 background-color: rgba(0, 0, 0, 0.12);_x000D_
 padding: 32px 40px;_x000D_
_x000D_
}_x000D_
a {_x000D_
    font-family:'Droid Sans', serif;_x000D_
    font-size: 14px;_x000D_
    color: black;_x000D_
    text-decoration: none;_x000D_
    line-height: 72px;_x000D_
}_x000D_
#home {_x000D_
    background-color: #286090;_x000D_
    height: 100vh;_x000D_
    width: 100%;_x000D_
    overflow: hidden;_x000D_
}_x000D_
#portfolio {_x000D_
    background: gray; _x000D_
    height: 100vh;_x000D_
    width: 100%;_x000D_
}_x000D_
#about {_x000D_
    background-color: blue;_x000D_
    height: 100vh;_x000D_
    width: 100%;_x000D_
}_x000D_
#contact {_x000D_
    background-color: rgb(154, 45, 45);_x000D_
    height: 100vh;_x000D_
    width: 100%;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<!-- <div class="container"> --->_x000D_
   <div class="m1 menu">_x000D_
   <div id="menu-center">_x000D_
    <ul>_x000D_
     <li><a class="active" href="#home">Home</a>_x000D_
_x000D_
     </li>_x000D_
     <li><a href="#portfolio">Portfolio</a>_x000D_
_x000D_
     </li>_x000D_
     <li><a href="#about">About</a>_x000D_
_x000D_
     </li>_x000D_
     <li><a href="#contact">Contact</a>_x000D_
_x000D_
     </li>_x000D_
    </ul>_x000D_
   </div>_x000D_
   </div>_x000D_
   <div id="home"></div>_x000D_
   <div id="portfolio"></div>_x000D_
   <div id="about"></div>_x000D_
   <div id="contact"></div>

Old Answer

When trying to run the application, instead of selecting the directory highlighted here in blue

I selected the subdirectory instead

and clicked "run".All the issues with Gradle are automatically resolved and the missing apk directory is automatically created.

New Solution

The Sync project with gradle files button disappeared from Android Studio for a while.Its back and you can find it here:

hit the button and wait for the task to complete

This is because your <h1> is the width of the centercol. Specify a width on the <h1> and use margin: 0 auto; if you want it centered.

Or, alternatively, you could float the <h1>, which would make it only exactly as wide as the text.

As noted in this answer, you can check the value of document.activeElement. document is a global variable, so you don't have to do any magic to use it in your onBlur handler:

function myOnBlur(e) {
  if(document.activeElement ===
       document.getElementById('elementToCheckForFocus')) {
    // Focus went where we expected!
    // ...
  }
}

UPDATE: As of 2018, this seems to work now. Tested in Chrome, Firefox, IE and Edge

UPDATE: Yes I changed the background-color, not the image, stop voting me down, showing that you can change style here is still a useful contribution.

<!DOCTYPE html>
<html>
<body>

<style>
select#newlocale option[value="volvo"]   { background-color: powderblue;   }
select#newlocale option[value="opel"]   { background-color: red;   }
select#newlocale option[value="audi"]   { background-color: green;   }
</style> 

<select id="newlocale">
  <option value="volvo"><div >Volvo</div></option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select>
  
</body>
</html>

if there is no value inserted, the default value should be null,empty

In the table definition, make this datetime column allows null, be not defining NOT NULL:

...
DateTimeColumn DateTime,
...

I HAVE ALLOWED NULL VARIABLES THOUGH.

Then , just insert NULL in this column:

INSERT INTO Table(name, datetimeColumn, ...)
VALUES('foo bar', NULL, ..);

Or, you can make use of the DEFAULT constaints:

...
DateTimeColumn DateTime DEFAULT NULL,
...

Then you can ignore it completely in the INSERT statement and it will be inserted withe the NULL value:

INSERT INTO Table(name, ...)
VALUES('foo bar', ..);

On Apple platforms (iOS/macOS/tvOS/watchOS), the limit may be a 2 GB long URL scheme, as seen by this comment in the source code of Swift:

// Make sure the URL string isn't too long.
// We're limiting it to 2GB for backwards compatibility with 32-bit executables using NS/CFURL
if ( (urlStringLength > 0) && (urlStringLength <= INT_MAX) )
{
...

On iOS, I've tested and confirmed that even a 300+ MB long URL is accepted. You can try such a long URL like this in Objective-C:

NSString *path = [@"a:" stringByPaddingToLength:314572800 withString:@"a" startingAtIndex:0];
NSString *js = [NSString stringWithFormat:@"window.location.href = \"%@\";", path];
[self.webView stringByEvaluatingJavaScriptFromString:js];

And catch if it succeed with:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
    NSLog(@"length: %@", @(request.URL.absoluteString.length));
    return YES;
}

406 - Not Acceptable

Which means this response is sent when the web server, after performing server-driven content negotiation, doesn't find any content that conforms to the criteria given by the user agent.

import java.util.Scanner;
public class StringReverse {
    public static void main(String[] args) {
        //Read user Data From Console
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter Your String:");
        //Take an String so that it can Store the string data 
        String s1 = sc.nextLine();
        //split the string and keep in an array
        String[] s2 = s1.split(" ");
        String s3 = " ";
        //reverse  the string and placed in an String s3
        for (int i = 0; i < s2.length; i++) {
            for (int j= s2[i].length()-1;j>=0;j--) {
                s3 += s2[i].charAt(j);
            }//for
            s3 += " ";
        }//for

        System.out.println("After Reverse: "+s3);

    }//main
}//StringReverse

Yes, it's true. Why do you doubt the php faq on the function? :)

The result of running password_hash() has has four parts:

1. the algorithm used
2. parameters
3. salt
4. actual password hash

So as you can see, the hash is a part of it.

Sure, you could have an additional salt for an added layer of security, but I honestly think that's overkill in a regular php application. The default bcrypt algorithm is good, and the optional blowfish one is arguably even better.

My all in one! (--01/09/2019 updated to deal with RStudio Console)

#' current script file (in full path)
#' @description current script file (in full path)
#' @examples
#' works with Rscript, source() or in RStudio Run selection, RStudio Console
#' @export
ez.csf <- function() {
    # http://stackoverflow.com/a/32016824/2292993
    cmdArgs = commandArgs(trailingOnly = FALSE)
    needle = "--file="
    match = grep(needle, cmdArgs)
    if (length(match) > 0) {
        # Rscript via command line
        return(normalizePath(sub(needle, "", cmdArgs[match])))
    } else {
        ls_vars = ls(sys.frames()[[1]])
        if ("fileName" %in% ls_vars) {
            # Source'd via RStudio
            return(normalizePath(sys.frames()[[1]]$fileName))
        } else {
            if (!is.null(sys.frames()[[1]]$ofile)) {
            # Source'd via R console
            return(normalizePath(sys.frames()[[1]]$ofile))
            } else {
                # RStudio Run Selection
                # http://stackoverflow.com/a/35842176/2292993
                pth = rstudioapi::getActiveDocumentContext()$path
                if (pth!='') {
                    return(normalizePath(pth))
                } else {
                    # RStudio Console
                    tryCatch({
                            pth = rstudioapi::getSourceEditorContext()$path
                            pth = normalizePath(pth)
                        }, error = function(e) {
                            # normalizePath('') issues warning/error
                            pth = ''
                        }
                    )
                    return(pth)
                }
            }
        }
    }
}

You aren't doing anything with the return value of replace. You'll need to assign the result of the method, which is the new String:

sentence = sentence.replace("and", " ");

A String is immutable in java. Methods like replace return a new String.

Your contains test is unnecessary: replace will just no-op if there aren't instances of the text to replace.

On production I prefer to redirect the requests to .php files under the directories where PHP processing should be disabled to a home page or to 404 page. This won't reveal any source code (why search engines should index uploaded malicious code?) and will look more friendly for visitors and even for evil hackers trying to exploit the stuff. Also it can be implemented in mostly in any context - vhost or .htaccess. Something like this:

<DirectoryMatch "^${docroot}/(image|cache|upload)/">
    <FilesMatch "\.php$">
        # use one of the redirections
        #RedirectMatch temp "(.*)" "http://${servername}/404/"
        RedirectMatch temp "(.*)" "http://${servername}"
    </FilesMatch>
</DirectoryMatch>

Adjust the directives as you need.

You can add the script tags like how we use in the asp.net while doing client side validations like below.

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>
<script type="text/javascript" src="~/Scripts/jquery-3.1.1.min.js"></script>
<script type="text/javascript">
    $(function () {
       //Your code
    });
</script>

Make sure the .ico file isn't corrupted as well. I got the same error which went away when I tried a different .ico file.

What is SQL JOIN ?

SQL JOIN is a method to retrieve data from two or more database tables.

What are the different SQL JOINs ?

There are a total of five JOINs. They are :

  1. JOIN or INNER JOIN
  2. OUTER JOIN

     2.1 LEFT OUTER JOIN or LEFT JOIN
     2.2 RIGHT OUTER JOIN or RIGHT JOIN
     2.3 FULL OUTER JOIN or FULL JOIN

  3. NATURAL JOIN
  4. CROSS JOIN
  5. SELF JOIN

1. JOIN or INNER JOIN :

In this kind of a JOIN, we get all records that match the condition in both tables, and records in both tables that do not match are not reported.

In other words, INNER JOIN is based on the single fact that: ONLY the matching entries in BOTH the tables SHOULD be listed.

Note that a JOIN without any other JOIN keywords (like INNER, OUTER, LEFT, etc) is an INNER JOIN. In other words, JOIN is a Syntactic sugar for INNER JOIN (see: Difference between JOIN and INNER JOIN).

2. OUTER JOIN :

OUTER JOIN retrieves

Either, the matched rows from one table and all rows in the other table Or, all rows in all tables (it doesn't matter whether or not there is a match).

There are three kinds of Outer Join :

2.1 LEFT OUTER JOIN or LEFT JOIN

This join returns all the rows from the left table in conjunction with the matching rows from the right table. If there are no columns matching in the right table, it returns NULL values.

2.2 RIGHT OUTER JOIN or RIGHT JOIN

This JOIN returns all the rows from the right table in conjunction with the matching rows from the left table. If there are no columns matching in the left table, it returns NULL values.

2.3 FULL OUTER JOIN or FULL JOIN

This JOIN combines LEFT OUTER JOIN and RIGHT OUTER JOIN. It returns rows from either table when the conditions are met and returns NULL value when there is no match.

In other words, OUTER JOIN is based on the fact that: ONLY the matching entries in ONE OF the tables (RIGHT or LEFT) or BOTH of the tables(FULL) SHOULD be listed.

Note that `OUTER JOIN` is a loosened form of `INNER JOIN`.

3. NATURAL JOIN :

It is based on the two conditions :

1. the JOIN is made on all the columns with the same name for equality.
2. Removes duplicate columns from the result.

This seems to be more of theoretical in nature and as a result (probably) most DBMS don't even bother supporting this.

4. CROSS JOIN :

It is the Cartesian product of the two tables involved. The result of a CROSS JOIN will not make sense in most of the situations. Moreover, we won't need this at all (or needs the least, to be precise).

5. SELF JOIN :

It is not a different form of JOIN, rather it is a JOIN (INNER, OUTER, etc) of a table to itself.

JOINs based on Operators

Depending on the operator used for a JOIN clause, there can be two types of JOINs. They are

1. Equi JOIN
2. Theta JOIN

1. Equi JOIN :

For whatever JOIN type (INNER, OUTER, etc), if we use ONLY the equality operator (=), then we say that the JOIN is an EQUI JOIN.

2. Theta JOIN :

This is same as EQUI JOIN but it allows all other operators like >, <, >= etc.

Many consider both EQUI JOIN and Theta JOIN similar to INNER, OUTER etc JOINs. But I strongly believe that its a mistake and makes the ideas vague. Because INNER JOIN, OUTER JOIN etc are all connected with the tables and their data whereas EQUI JOIN and THETA JOIN are only connected with the operators we use in the former.

Again, there are many who consider NATURAL JOIN as some sort of "peculiar" EQUI JOIN. In fact, it is true, because of the first condition I mentioned for NATURAL JOIN. However, we don't have to restrict that simply to NATURAL JOINs alone. INNER JOINs, OUTER JOINs etc could be an EQUI JOIN too.

Alongside nmaier's answer, as he said you'll always receive code 1006. However, if you were to somehow theoretically receive other codes, here is code to display the results (via RFC6455).

you will almost never get these codes in practice so this code is pretty much pointless

var websocket;
if ("WebSocket" in window)
{
    websocket = new WebSocket("ws://yourDomainNameHere.org/");

    websocket.onopen = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "The connection was opened");
    };
    websocket.onclose = function (event) {
        var reason;
        alert(event.code);
        // See http://tools.ietf.org/html/rfc6455#section-7.4.1
        if (event.code == 1000)
            reason = "Normal closure, meaning that the purpose for which the connection was established has been fulfilled.";
        else if(event.code == 1001)
            reason = "An endpoint is \"going away\", such as a server going down or a browser having navigated away from a page.";
        else if(event.code == 1002)
            reason = "An endpoint is terminating the connection due to a protocol error";
        else if(event.code == 1003)
            reason = "An endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).";
        else if(event.code == 1004)
            reason = "Reserved. The specific meaning might be defined in the future.";
        else if(event.code == 1005)
            reason = "No status code was actually present.";
        else if(event.code == 1006)
           reason = "The connection was closed abnormally, e.g., without sending or receiving a Close control frame";
        else if(event.code == 1007)
            reason = "An endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 [http://tools.ietf.org/html/rfc3629] data within a text message).";
        else if(event.code == 1008)
            reason = "An endpoint is terminating the connection because it has received a message that \"violates its policy\". This reason is given either if there is no other sutible reason, or if there is a need to hide specific details about the policy.";
        else if(event.code == 1009)
           reason = "An endpoint is terminating the connection because it has received a message that is too big for it to process.";
        else if(event.code == 1010) // Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
            reason = "An endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. <br /> Specifically, the extensions that are needed are: " + event.reason;
        else if(event.code == 1011)
            reason = "A server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.";
        else if(event.code == 1015)
            reason = "The connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).";
        else
            reason = "Unknown reason";

        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "The connection was closed for reason: " + reason);
    };
    websocket.onmessage = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "New message arrived: " + event.data);
    };
    websocket.onerror = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "There was an error with your websocket.");
    };
}
else
{
    alert("Websocket is not supported by your browser");
    return;
}

websocket.send("Yo wazzup");

websocket.close();

See http://jsfiddle.net/gr0bhrqr/

Extremely fast

I analyse current solutions and propose 2 new (F and G presented in details section) one which are extremely fast for small and medium arrays

Performance

Today 2020.11.13 I perform tests on MacOs HighSierra 10.13.6 on Chrome v86, Safari v13.1.2 and Firefox v82 for chosen solutions

Results

For all browsers

• solutions based on while-pop-unshift (F,G) are (extremely) fastest on all browsers for small and medium size arrays. For arrays with 50000 elements this solutions slows down on Chrome
• solutions C,D for arrays 500000 breaks: "RangeError: Maximum call stack size exceeded
• solution (E) is slowest

Details

I perform 2 tests cases:

• when arrays have 10 elements - you can run it HERE
• when arrays have 10k elements - you can run it HERE

Below snippet presents differences between solutions A, B, C, D, E, F(my), G(my), H, I

// https://stackoverflow.com/a/4156145/860099
function A(a,b) {
  return a.concat(b);
}

// https://stackoverflow.com/a/38107399/860099 
function B(a,b) {
  return [...a, ...b];
}

// https://stackoverflow.com/a/32511679/860099
function C(a,b) {
  return (a.push(...b), a);
}

// https://stackoverflow.com/a/4156156/860099
function D(a,b) {
    Array.prototype.push.apply(a, b);
    return a;
}

// https://stackoverflow.com/a/60276098/860099
function E(a,b) {
    return b.reduce((pre, cur) => [...pre, cur], a);
}

// my
function F(a,b) {
    while(b.length) a.push(b.shift());
    return a;
}

// my
function G(a,b) {
    while(a.length) b.unshift(a.pop());
    return b;
}

// https://stackoverflow.com/a/44087401/860099
function H(a, b) {
    var len = b.length;
    var start = a.length;
    a.length = start + len;
    for (var i = 0; i < len; i++ , start++) {
        a[start] = b[i];
    }
    return a;
}

// https://stackoverflow.com/a/51860949/860099
function I(a, b){
   var oneLen = a.length, twoLen = b.length;
   var newArr = [], newLen = newArr.length = oneLen + twoLen;
   for (var i=0, tmp=a[0]; i !== oneLen; ++i) {
        tmp = a[i];
        if (tmp !== undefined || a.hasOwnProperty(i)) newArr[i] = tmp;
    }
    for (var two=0; i !== newLen; ++i, ++two) {
        tmp = b[two];
        if (tmp !== undefined || b.hasOwnProperty(two)) newArr[i] = tmp;
    }
    return newArr;
}






// ---------
// TEST
// ---------

let a1=[1,2,3];
let a2=[4,5,6];

[A,B,C,D,E,F,G,H,I].forEach(f=> {
    console.log(`${f.name}: ${f([...a1],[...a2])}`)
})

And here are example results for chrome

I just used a model variable to show/hide the dialog and removed the data-dismiss="alert"

Example:

<div data-ng-show="vm.result == 'error'" class="alert alert-danger alert-dismissable">
    <button type="button" class="close" data-ng-click="vm.result = null" aria-hidden="true">&times;</button>
    <strong>Error  !  </strong>{{vm.exception}}
</div>

works for me and stops the need to go out to jquery

GitHub's instructions for doing this:

1. On the command line, navigate to the repository that contains the commit you want to amend.
2. Type git commit --amend and press Enter.
3. In your text editor, edit the commit message and save the commit.
4. Use the git push --force example-branch command to force push over the old commit.

Source: https://help.github.com/articles/changing-a-commit-message/

Let's go to the source -- 2.6.32, for example. The message is printed by show_signal_msg() function in arch/x86/mm/fault.c if the show_unhandled_signals sysctl is set.

"error" is not an errno nor a signal number, it's a "page fault error code" -- see definition of enum x86_pf_error_code.

"[7fa44d2f8000+f6f000]" is starting address and size of virtual memory area where offending object was mapped at the time of crash. Value of "ip" should fit in this region. With this info in hand, it should be easy to find offending code in gdb.

There are several scenarios to consider. First of all, you need to check the type of your object. You can simply call GetType() for this. If the type does not implement IDynamicMetaObjectProvider, then you can use reflection same as for any other object. Something like:

var propertyInfo = test.GetType().GetProperties();

However, for IDynamicMetaObjectProvider implementations, the simple reflection doesn't work. Basically, you need to know more about this object. If it is ExpandoObject (which is one of the IDynamicMetaObjectProvider implementations), you can use the answer provided by itowlson. ExpandoObject stores its properties in a dictionary and you can simply cast your dynamic object to a dictionary.

If it's DynamicObject (another IDynamicMetaObjectProvider implementation), then you need to use whatever methods this DynamicObject exposes. DynamicObject isn't required to actually "store" its list of properties anywhere. For example, it might do something like this (I'm reusing an example from my blog post):

public class SampleObject : DynamicObject
{
    public override bool TryGetMember(GetMemberBinder binder, out object result)
    {
        result = binder.Name;
        return true;
    }
}

In this case, whenever you try to access a property (with any given name), the object simply returns the name of the property as a string.

dynamic obj = new SampleObject();
Console.WriteLine(obj.SampleProperty);
//Prints "SampleProperty".

So, you don't have anything to reflect over - this object doesn't have any properties, and at the same time all valid property names will work.

I'd say for IDynamicMetaObjectProvider implementations, you need to filter on known implementations where you can get a list of properties, such as ExpandoObject, and ignore (or throw an exception) for the rest.

Use String split method to remove :00.000

var formatedTime = currentTime.toString().split(':')
Text(formatedTime[0])

======= OR USE BELOW code for YYYY-MM-DD HH:MM:SS format without using library ====

var stringList =  DateTime.now().toIso8601String().split(new RegExp(r"[T\.]"));
var formatedDate = "${stringList[0]} ${stringList[1]}";

You can also just use the top command and your user ID will indicate the jobs running and the their times.

$ top

(this will show all running jobs)

$ top -U [user ID]

(This will show jobs that are specific for the user ID)

Private Sub CommandButton1_Click() 

Dim Z As Long 
Dim Cellidx As Range 
Dim NextRow As Long 
Dim Rng As Range 
Dim SrcWks As Worksheet 
Dim DataWks As Worksheet 
Z = 1 
Set SrcWks = Worksheets("Sheet1") 
Set DataWks = Worksheets("Sheet2") 
Set Rng = EntryWks.Range("B6:ad6") 

NextRow = DataWks.UsedRange.Rows.Count 
NextRow = IIf(NextRow = 1, 1, NextRow + 1) 

For Each RA In Rng.Areas 
    For Each Cellidx In RA 
        Z = Z + 1 
        DataWks.Cells(NextRow, Z) = Cellidx 
    Next Cellidx 
Next RA 
End Sub

Alternatively

Worksheets("Sheet2").Range("P2").Value = Worksheets("Sheet1").Range("L10") 

This is a CopynPaste - Method

Sub CopyDataToPlan()

Dim LDate As String
Dim LColumn As Integer
Dim LFound As Boolean

On Error GoTo Err_Execute

'Retrieve date value to search for
LDate = Sheets("Rolling Plan").Range("B4").Value

Sheets("Plan").Select

'Start at column B
LColumn = 2
LFound = False

While LFound = False

  'Encountered blank cell in row 2, terminate search
  If Len(Cells(2, LColumn)) = 0 Then
     MsgBox "No matching date was found."
     Exit Sub

  'Found match in row 2
  ElseIf Cells(2, LColumn) = LDate Then

     'Select values to copy from "Rolling Plan" sheet
     Sheets("Rolling Plan").Select
     Range("B5:H6").Select
     Selection.Copy

     'Paste onto "Plan" sheet
     Sheets("Plan").Select
     Cells(3, LColumn).Select
     Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:= _
     False, Transpose:=False

     LFound = True
     MsgBox "The data has been successfully copied."

     'Continue searching
      Else
         LColumn = LColumn + 1
      End If

   Wend

   Exit Sub

Err_Execute:
  MsgBox "An error occurred."

End Sub

And there might be some methods doing that in Excel.

Note if you want to count FULL 24h days between 2 dates, datediff can return wrong values for you.

As documentation states:

Only the date parts of the values are used in the calculation.

which results in

select datediff('2016-04-14 11:59:00', '2016-04-13 12:00:00')

returns 1 instead of expected 0.

Solution is using select timestampdiff(DAY, '2016-04-13 11:00:01', '2016-04-14 11:00:00'); (note the opposite order of arguments compared to datediff).

Some examples:

• select timestampdiff(DAY, '2016-04-13 11:00:01', '2016-04-14 11:00:00'); returns 0
• select timestampdiff(DAY, '2016-04-13 11:00:00', '2016-04-14 11:00:00'); returns 1
• select timestampdiff(DAY, '2016-04-13 11:00:00', now()); returns how many full 24h days has passed since 2016-04-13 11:00:00 until now.

Hope it will help someone, because at first it isn't much obvious why datediff returns values which seems to be unexpected or wrong.

Just use the FORMAT function (works on SQL Server 2012 or newer):

SELECT FORMAT(EmployeeID, '000000')
FROM dbo.RequestItems
WHERE ID=0 

Reference: http://msdn.microsoft.com/en-us/library/hh213505.aspx

Solution 1: override onSaveInstanceState() and remove the super call in it.

@Override
public void onSaveInstanceState(Bundle outState) {
}

Solution 2: override onSaveInstanceState() and remove your fragment before the super call

@Override
public void onSaveInstanceState(Bundle outState) {
     // TODO: Add code to remove fragment here
     super.onSaveInstanceState(outState);
}

Collection<String> c1 = new ArrayList<String>();
c1.add("foo");
Collection<String> c2 = Collections.unmodifiableList(c1);

c1 is mutable (i.e. neither unmodifiable nor immutable).
c2 is unmodifiable: it can't be changed itself, but if later on I change c1 then that change will be visible in c2.

This is because c2 is simply a wrapper around c1 and not really an independent copy. Guava provides the ImmutableList interface and some implementations. Those work by actually creating a copy of the input (unless the input is an immutable collection on its own).

Regarding your second question:

The mutability/immutability of a collection does not depend on the mutability/immutability of the objects contained therein. Modifying an object contained in a collection does not count as a "modification of the collection" for this description. Of course if you need a immutable collection, you usually also want it to contain immutable objects.

I caught this error a few days ago.

IN my case it was because I was using a Transaction on a Singleton.

.Net does not work well with Singleton as stated above.

My solution was this:

public class DbHelper : DbHelperCore
{
    public DbHelper()
    {
        Connection = null;
        Transaction = null;
    }

    public static DbHelper instance
    {
        get
        {
            if (HttpContext.Current is null)
                return new DbHelper();
            else if (HttpContext.Current.Items["dbh"] == null)
                HttpContext.Current.Items["dbh"] = new DbHelper();

            return (DbHelper)HttpContext.Current.Items["dbh"];
        }
    }

    public override void BeginTransaction()
    {
        Connection = new SqlConnection(Entity.Connection.getCon);
        if (Connection.State == System.Data.ConnectionState.Closed)
            Connection.Open();
        Transaction = Connection.BeginTransaction();
    }
}

I used HttpContext.Current.Items for my instance. This class DbHelper and DbHelperCore is my own class

I have used both JXL (now "JExcel") and Apache POI. At first I used JXL, but now I use Apache POI.

First, here are the things where both APIs have the same end functionality:

• Both are free
• Cell styling: alignment, backgrounds (colors and patterns), borders (types and colors), font support (font names, colors, size, bold, italic, strikeout, underline)
• Formulas
• Hyperlinks
• Merged cell regions
• Size of rows and columns
• Data formatting: Numbers and Dates
• Text wrapping within cells
• Freeze Panes
• Header/Footer support
• Read/Write existing and new spreadsheets
• Both attempt to keep existing objects in spreadsheets they read in intact as far as possible.

However, there are many differences:

• Perhaps the most significant difference is that Java JXL does not support the Excel 2007+ ".xlsx" format; it only supports the old BIFF (binary) ".xls" format. Apache POI supports both with a common design.
• Additionally, the Java portion of the JXL API was last updated in 2009 (3 years, 4 months ago as I write this), although it looks like there is a C# API. Apache POI is actively maintained.
• JXL doesn't support Conditional Formatting, Apache POI does, although this is not that significant, because you can conditionally format cells with your own code.
• JXL doesn't support rich text formatting, i.e. different formatting within a text string; Apache POI does support it.
• JXL only supports certain text rotations: horizontal/vertical, +/- 45 degrees, and stacked; Apache POI supports any integer number of degrees plus stacked.
• JXL doesn't support drawing shapes; Apache POI does.
• JXL supports most Page Setup settings such as Landscape/Portrait, Margins, Paper size, and Zoom. Apache POI supports all of that plus Repeating Rows and Columns.
• JXL doesn't support Split Panes; Apache POI does.
• JXL doesn't support Chart creation or manipulation; that support isn't there yet in Apache POI, but an API is slowly starting to form.
• Apache POI has a more extensive set of documentation and examples available than JXL.

Additionally, POI contains not just the main "usermodel" API, but also an event-based API if all you want to do is read the spreadsheet content.

In conclusion, because of the better documentation, more features, active development, and Excel 2007+ format support, I use Apache POI.

You can do it the DOM way as well:

var div = document.getElementById('cart_item');
while(div.firstChild){
    div.removeChild(div.firstChild);
}

I have a function:

def period(delta, pattern):
    d = {'d': delta.days}
    d['h'], rem = divmod(delta.seconds, 3600)
    d['m'], d['s'] = divmod(rem, 60)
    return pattern.format(**d)

Examples:

>>> td = timedelta(seconds=123456789)
>>> period(td, "{d} days {h}:{m}:{s}")
'1428 days 21:33:9'
>>> period(td, "{h} hours, {m} minutes and {s} seconds, {d} days")
'21 hours, 33 minutes and 9 seconds, 1428 days'

Use the each() function of jQuery.

Here is an example:

$.each(currnt_image_list.split(','), function(index, value) { 
  alert(index + ': ' + value); 
});

If you are the only the person working on the project, what you can do is:

 git checkout master
 git push origin +HEAD

This will set the tip of origin/master to the same commit as master (and so delete the commits between 41651df and origin/master)

In case if Mysql 5.7 you can use "show global variables like "local_infile" ;" which will give the local infile status ,You can turn it on using "set global local_infile=ON ; ".

Looks like a corrupted assembly being referenced.

Clear both:

1. the \bin folder of your project

2. the temp folder (should be C:\Users\your_username\AppData\Local\Temp\Temporary ASP.NET Files in windows 7)

and see if the error still happens

The best answer here:

https://www.git-tower.com/learn/git/glossary/origin

In Git, "origin" is a shorthand name for the remote repository that a project was originally cloned from. More precisely, it is used instead of that original repository's URL - and thereby makes referencing much easier.

    $(document).ready(function () {
        $('#chkDisableEnableElements').change(function () {
            if ($('#chkDisableEnableElements').is(':checked')) {
                enableElements($('#divDifferentElements').children());
            }
            else {
                disableElements($('#divDifferentElements').children());
            }
        });
    });

    function disableElements(el) {
        for (var i = 0; i < el.length; i++) {
            el[i].disabled = true;

            disableElements(el[i].children);
        }
    }

    function enableElements(el) {
        for (var i = 0; i < el.length; i++) {
            el[i].disabled = false;

            enableElements(el[i].children);
        }
    }

If you want to know if the object physically contains the property @gnarf's answer using hasOwnProperty will do the work.

If you're want to know if the property exists anywhere, either on the object itself or up in the prototype chain, you can use the in operator.

if ('prop' in obj) {
  // ...
}

Eg.:

var obj = {};

'toString' in obj == true; // inherited from Object.prototype
obj.hasOwnProperty('toString') == false; // doesn't contains it physically

HTML:

First, we will need to add a class to your text container so that we can access and style it accordingly.

<div class="col-xs-5 textContainer">
     <h3 class="text-left">Link up with other gamers all over the world who share the same tastes in games.</h3>
</div>

CSS:

Next, we will apply the following styles to align it vertically, according to the size of the image div next to it.

.textContainer { 
    height: 345px; 
    line-height: 340px;
}

.textContainer h3 {
    vertical-align: middle;
    display: inline-block;
}

All Done! Adjust the line-height and height on the styles above if you believe that it is still slightly out of align.

WORKING EXAMPLE

Or try this:

apt-get install python-mysqldb

An instance might be corrupted or not updated properly.

Try these Commands:

C:\>sqllocaldb stop MSSQLLocalDB
LocalDB instance "MSSQLLocalDB" stopped.
 
C:\>sqllocaldb delete MSSQLLocalDB
LocalDB instance "MSSQLLocalDB" deleted.
 
C:\>sqllocaldb create MSSQLLocalDB
LocalDB instance "MSSQLLocalDB" created with version 13.0.1601.5.
 
C:\>sqllocaldb start MSSQLLocalDB
LocalDB instance "MSSQLLocalDB" started.

iloc

df1 = datasX.iloc[:, :72]
df2 = datasX.iloc[:, 72:]

(iloc docs)

I know this post is very old, For those who don't want to use android:fillViewport="true" because it sometimes doesn't bring up the edittext above keyboard. Use Relative layout instead of LinearLayout it solves the purpose.

This little program should be the solution ;-)

I hope this helps everyone.

using System;
using System.Threading;
using System.Threading.Tasks;

namespace DailyWorker
{
    class Program
    {
        static void Main(string[] args)
        {
            var cancellationSource = new CancellationTokenSource();

            var utils = new Utils();
            var task = Task.Run(
                () => utils.DailyWorker(12, 30, 00, () => DoWork(cancellationSource.Token), cancellationSource.Token));

            Console.WriteLine("Hit [return] to close!");
            Console.ReadLine();

            cancellationSource.Cancel();
            task.Wait();
        }

        private static void DoWork(CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                Console.Write(DateTime.Now.ToString("G"));
                Console.CursorLeft = 0;
                Task.Delay(1000).Wait();
            }
        }
    }

    public class Utils
    {
        public void DailyWorker(int hour, int min, int sec, Action someWork, CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                var dateTimeNow = DateTime.Now;
                var scanDateTime = new DateTime(
                    dateTimeNow.Year,
                    dateTimeNow.Month,
                    dateTimeNow.Day,
                    hour,       // <-- Hour when the method should be started.
                    min,  // <-- Minutes when the method should be started.
                    sec); // <-- Seconds when the method should be started.

                TimeSpan ts;
                if (scanDateTime > dateTimeNow)
                {
                    ts = scanDateTime - dateTimeNow;
                }
                else
                {
                    scanDateTime = scanDateTime.AddDays(1);
                    ts           = scanDateTime - dateTimeNow;
                }

                try
                {
                     Task.Delay(ts).Wait(token);
                }
                catch (OperationCanceledException)
                {
                    break;
                }

                // Method to start
                someWork();
            }
        }
    }
}

I don't see an obvious problem with the above.

It's possible your ldap.conf is being overridden, but the command-line options will take precedence, ldapsearch will ignore BINDDN in the main ldap.conf, so the only parameter that could be wrong is the URI. (The order is ETCDIR/ldap.conf then ~/ldaprc or ~/.ldaprc and then ldaprc in the current directory, though there environment variables which can influence this too, see man ldapconf.)

Try an explicit URI:

ldapsearch -x -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base -H ldap://localhost

or prevent defaults with:

LDAPNOINIT=1 ldapsearch -x -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base

If that doesn't work, then some troubleshooting (you'll probably need the full path to the slapd binary for these):

• make sure your slapd.conf is being used and is correct (as root)

  slapd -T test -f slapd.conf -d 65535

  You may have a left-over or default slapd.d configuration directory which takes preference over your slapd.conf (unless you specify your config explicitly with -f, slapd.conf is officially deprecated in OpenLDAP-2.4). If you don't get several pages of output then your binaries were built without debug support.

• stop OpenLDAP, then manually start slapd in a separate terminal/console with debug enabled (as root, ^C to quit)

  slapd -h ldap://localhost -d 481

  then retry the search and see if you can spot the problem (there will be a lot of schema noise in the start of the output unfortunately). (Note: running slapd without the -u/-g options can change file ownerships which can cause problems, you should usually use those options, probably -u ldap -g ldap )

• if debug is enabled, then try also

  ldapsearch -v -d 63 -W -D 'cn=Manager,dc=example,dc=com' -b "" -s base

Right click on the web page you want to use as the default page and choose "Set as Start Page" whenever you run the web application from Visual Studio, it will open the selected page.

For those coming here with a Mac:

I had the same issue and the problem was, I created an emulator with API Level 29 but removed that SDK and installed 28 instead. The emulator that was not able to be launched anymore.

Therefore check the AVD Manager if your emulator really can be launched.

Response you are getting is in object form i.e.

{ 
  "dstOffset" : 3600, 
  "rawOffset" : 36000, 
  "status" : "OK", 
  "timeZoneId" : "Australia/Hobart", 
  "timeZoneName" : "Australian Eastern Daylight Time" 
}

Replace below line of code :

List<Post> postsList = Arrays.asList(gson.fromJson(reader,Post.class))

with

Post post = gson.fromJson(reader, Post.class);

Typescript will always complain when it is unable to find a symbol. The compiler comes together with a set of default definitions for window, document and such specified in a file called lib.d.ts. If I do a grep for require in this file I can find no definition of a function require. Hence, we have to tell the compiler ourselves that this function will exist at runtime using the declare syntax:

declare function require(name:string);
var sampleModule = require('modulename');

On my system, this compiles just fine.

I need to add my 5 cents. I see everybody use [ or [[, but it worth to mention that they are not part of if syntax.

For arithmetic comparisons, use ((...)) instead.

((...)) is an arithmetic command, which returns an exit status of 0 if the expression is nonzero, or 1 if the expression is zero. Also used as a synonym for "let", if side effects (assignments) are needed.

See: ArithmeticExpression

If you are using the Support Library provided DrawerLayout as suggested in the Creating a navigation drawer training, you can use the newly added android.support.v7.app.ActionBarDrawerToggle (note: different from the now deprecated android.support.v4.app.ActionBarDrawerToggle):

shows a Hamburger icon when drawer is closed and an arrow when drawer is open. It animates between these two states as the drawer opens.

While the training hasn't been updated to take the deprecation/new class into account, you should be able to use it almost exactly the same code - the only difference in implementing it is the constructor.

Well, the problem is that Files.newBufferedReader(Path path) is implemented like this :

public static BufferedReader newBufferedReader(Path path) throws IOException {
    return newBufferedReader(path, StandardCharsets.UTF_8);
}

so basically there is no point in specifying UTF-8 unless you want to be descriptive in your code. If you want to try a "broader" charset you could try with StandardCharsets.UTF_16, but you can't be 100% sure to get every possible character anyway.

It only worked for me in Firefox when accessing it from the window object.

Example...

window.onload = function()
{
 window.localStorage.clear();
}

Overview of gcm: You send a request to google server from your android phone. You receive a registration id as a response. You will then have to send this registration id to the server from where you wish to send notifications to the mobile. Using this registration id you can then send notification to the device.

Answer:

1. To send a notification you send the data(message) with the registration id of the device to https://android.googleapis.com/gcm/send. (use curl in php).
2. To receive notification and registration etc, thats all you will be requiring.
3. You will have to store the registration id on the device as well as on server. If you use GCM.jar the registration id is stored in preferences. If you wish you can save it in your local database as well.

If you (already) using a lodash library, there is a function called truncate which can be used for trimming the string.

Based on the example on the docs page

_.truncate('hi-diddly-ho there, neighborino', {
  'length': 24,
  'separator': ' '
});
// => 'hi-diddly-ho there,...'

The way I do it is to do a Topological Sort, counting the number of vertices visited. If that number is less than the total number of vertices in the DAG, you have a cycle.

There are a couple of topics that might provide you with an answer. You could also run some tests yourself. Doesn't see too hard to get some loops started and adding a timer to calculate the execution time ;-)

This happens if you initialized a new github repo with README and/or LICENSE file

git remote add origin [//your github url]

//pull those changes

git pull origin master 

// or optionally, 'git pull origin master --allow-unrelated-histories' if you have initialized repo in github and also committed locally

//now, push your work to your new repo

git push origin master

Now you will be able to push your repository to github. Basically, you have to merge those new initialized files with your work. git pull fetches and merges for you. You can also fetch and merge if that suits you.

The reason that you get the 404 File Not Found error, is that your path to CSS given as a value to the href attribute is missing context path.

An HTTP request URL contains the following parts:

http://[host]:[port][request-path]?[query-string]

The request path is further composed of the following elements:

• Context path: A concatenation of a forward slash (/) with the context root of the servlet's web application. Example: http://host[:port]/context-root[/url-pattern]

• Servlet path: The path section that corresponds to the component alias that activated this request. This path starts with a forward slash (/).

• Path info: The part of the request path that is not part of the context path or the servlet path.

Read more here.

Solutions

There are several solutions to your problem, here are some of them:

1) Using <c:url> tag from JSTL

In my Java web applications I usually used <c:url> tag from JSTL when defining the path to CSS/JavaScript/image and other static resources. By doing so you can be sure that those resources are referenced always relative to the application context (context path).

If you say, that your CSS is located inside WebContent folder, then this should work:

<link type="text/css" rel="stylesheet" href="<c:url value="/globalCSS.css" />" />

The reason why it works is explained in the "JavaServer Pages™ Standard Tag Library" version 1.2 specification chapter 7.5 (emphasis mine):

7.5 <c:url>
Builds a URL with the proper rewriting rules applied.
...
The URL must be either an absolute URL starting with a scheme (e.g. "http:// server/context/page.jsp") or a relative URL as defined by JSP 1.2 in JSP.2.2.1 "Relative URL Specification". As a consequence, an implementation must prepend the context path to a URL that starts with a slash (e.g. "/page2.jsp") so that such URLs can be properly interpreted by a client browser.

NOTE
Don't forget to use Taglib directive in your JSP to be able to reference JSTL tags. Also see an example JSP page here.

2) Using JSP Expression Language and implicit objects

An alternative solution is using Expression Language (EL) to add application context:

<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/globalCSS.css" />

Here we have retrieved the context path from the request object. And to access the request object we have used the pageContext implicit object.

3) Using <c:set> tag from JSTL

DISCLAIMER
The idea of this solution was taken from here.

To make accessing the context path more compact than in the solution ?2, you can first use the JSTL <c:set> tag, that sets the value of an EL variable or the property of an EL variable in any of the JSP scopes (page, request, session, or application) for later access.

<c:set var="root" value="${pageContext.request.contextPath}"/>
...
<link type="text/css" rel="stylesheet" href="${root}/globalCSS.css" />

IMPORTANT NOTE
By default, in order to set the variable in such manner, the JSP that contains this set tag must be accessed at least once (including in case of setting the value in the application scope using scope attribute, like <c:set var="foo" value="bar" scope="application" />), before using this new variable. For instance, you can have several JSP files where you need this variable. So you must ether a) both set the new variable holding context path in the application scope AND access this JSP first, before using this variable in other JSP files, or b) set this context path holding variable in EVERY JSP file, where you need to access to it.

4) Using ServletContextListener

The more effective way to make accessing the context path more compact is to set a variable that will hold the context path and store it in the application scope using a Listener. This solution is similar to solution ?3, but the benefit is that now the variable holding context path is set right at the start of the web application and is available application wide, no need for additional steps.

We need a class that implements ServletContextListener interface. Here is an example of such class:

package com.example.listener;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;

@WebListener
public class AppContextListener implements ServletContextListener {

    @Override
    public void contextInitialized(ServletContextEvent event) {
        ServletContext sc = event.getServletContext();
        sc.setAttribute("ctx", sc.getContextPath());
    }

    @Override
    public void contextDestroyed(ServletContextEvent event) {}

}

Now in a JSP we can access this global variable using EL:

<link type="text/css" rel="stylesheet" href="${ctx}/globalCSS.css" />

NOTE
@WebListener annotation is available since Servlet version 3.0. If you use a servlet container or application server that supports older Servlet specifications, remove the @WebServlet annotation and instead configure the listener in the deployment descriptor (web.xml). Here is an example of web.xml file for the container that supports maximum Servlet version 2.5 (other configurations are omitted for the sake of brevity):

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    ...  
    <listener>
        <listener-class>com.example.listener.AppContextListener</listener-class>
    </listener>
    ...
</webapp>

5) Using scriptlets

As suggested by user @gavenkoa you can also use scriptlets like this:

<%= request.getContextPath() %>

For such a small thing it is probably OK, just note that generally the use of scriptlets in JSP is discouraged.

Conclusion

I personally prefer either the first solution (used it in my previous projects most of the time) or the second, as they are most clear, intuitive and unambiguous (IMHO). But you choose whatever suits you most.

Other thoughts

You can deploy your web app as the default application (i.e. in the default root context), so it can be accessed without specifying context path. For more info read the "Update" section here.

You could make a little Tkinter app:

import Tkinter as tk

def onKeyPress(event):
    text.insert('end', 'You pressed %s\n' % (event.char, ))

root = tk.Tk()
root.geometry('300x200')
text = tk.Text(root, background='black', foreground='white', font=('Comic Sans MS', 12))
text.pack()
root.bind('<KeyPress>', onKeyPress)
root.mainloop()

For my answer, it is worth remembering that the TPL (Task-Parallel-Library), Task class and TaskStatus enumeration were introduced prior to the async-await keywords and the async-await keywords were not the original motivation of the TPL.

In the context of methods marked as async, the resulting Task is not a Task representing the execution of the method, but a Task for the continuation of the method.

This is only able to make use of a few possible states:

• Canceled
• Faulted
• RanToCompletion
• WaitingForActivation

I understand that Runningcould appear to have been a better default than WaitingForActivation, however this could be misleading, as the majority of the time, an async method being executed is not actually running (i.e. it may be await-ing something else). The other option may have been to add a new value to TaskStatus, however this could have been a breaking change for existing applications and libraries.

All of this is very different to when making use of Task.Run which is a part of the original TPL, this is able to make use of all the possible values of the TaskStatus enumeration.

If you wish to keep track of the status of an async method, take a look at the IProgress(T) interface, this will allow you to report the ongoing progress. This blog post, Async in 4.5: Enabling Progress and Cancellation in Async APIs will provide further information on the use of the IProgress(T) interface.

If you are using xampp 7.3.9. socket already installed. You can check xampp\php\ext and you will get the php_socket.dll. if you get it go to your xampp control panel open php.ini file and remove (;) from extension=sockets.

You can easily implement clrscr() using simple for loop printing "\b".

For an option that looks more like what you get when you print from a browser, wkhtmltopdf provides one option.

On Ubuntu

sudo apt-get install wkhtmltopdf

And then the same command as for the pandoc example to get to the HTML:

RMDFILE=example-r-markdown  
Rscript -e "require(knitr); require(markdown); knit('$RMDFILE.rmd', '$RMDFILE.md'); markdownToHTML('$RMDFILE.md', '$RMDFILE.html', options=c('use_xhml'))"

and then

wkhtmltopdf example-r-markdown.html example-r-markdown.pdf

The resulting file looked like this. It did not seem to handle the MathJax (this issue is discussed here), and the page breaks are ugly. However, in some cases, such a style might be preferred over a more LaTeX style presentation.

This is actually a fairly interesting question. It's not as simple as it looks at first. For reference, I'm going to be basing this off of the latest C11 language grammar defined in N1570

I guess the counter-intuitive part of the question is: if this is correct C:

if (a == 1) {
  int b = 10;
}

then why is this not also correct C?

if (a == 1)
  int b = 10;

I mean, a one-line conditional if statement should be fine either with or without braces, right?

The answer lies in the grammar of the if statement, as defined by the C standard. The relevant parts of the grammar I've quoted below. Succinctly: the int b = 10 line is a declaration, not a statement, and the grammar for the if statement requires a statement after the conditional that it's testing. But if you enclose the declaration in braces, it becomes a statement and everything's well.

And just for the sake of answering the question completely -- this has nothing to do with scope. The b variable that exists inside that scope will be inaccessible from outside of it, but the program is still syntactically correct. Strictly speaking, the compiler shouldn't throw an error on it. Of course, you should be building with -Wall -Werror anyways ;-)

(6.7) declaration:
            declaration-speci?ers init-declarator-listopt ;
            static_assert-declaration

(6.7) init-declarator-list:
            init-declarator
            init-declarator-list , init-declarator

(6.7) init-declarator:
            declarator
            declarator = initializer

(6.8) statement:
            labeled-statement
            compound-statement
            expression-statement
            selection-statement
            iteration-statement
            jump-statement

(6.8.2) compound-statement:
            { block-item-listopt }

(6.8.4) selection-statement:
            if ( expression ) statement
            if ( expression ) statement else statement
            switch ( expression ) statement

To install npm on windows just unzip the npm archive where node is. See the docs for more detail.

npm is shipped with node, that is how you should install it. nvm is only for changing node versions and does not install npm. A cleaner way to use npm and nvm is to first install node as it is (with npm), then install the nvm package by npm install nvm

The problem for me is that I didn't include global.asax.cs in my project. And because I was copying files from a .net 4.5 to a 4.0 I didn't comment out lines that are not needed in 4.0. Because it was not included visual studio compiled it anyway without issues. But when I included it, it highlighted the lines that cause problems.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
//using System.Web.Http;
using System.Web.Mvc;
//using System.Web.Optimization;
using System.Web.Routing;

namespace YourNameSpace
{
    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            //GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            //BundleConfig.RegisterBundles(BundleTable.Bundles);
        }
    }
}

In some cases you should use:

req.path

This gives you the path, instead of the complete requested URL. For example, if you are only interested in which page the user requested and not all kinds of parameters the url:

/myurl.htm?allkinds&ofparameters=true

req.path will give you:

/myurl.html

constexpr indicates a value that's constant and known during compilation.
const indicates a value that's only constant; it's not compulsory to know during compilation.

int sz;
constexpr auto arraySize1 = sz;    // error! sz's value unknown at compilation
std::array<int, sz> data1;         // error! same problem

constexpr auto arraySize2 = 10;    // fine, 10 is a compile-time constant
std::array<int, arraySize2> data2; // fine, arraySize2 is constexpr

Note that const doesn’t offer the same guarantee as constexpr, because const objects need not be initialized with values known during compilation.

int sz;
const auto arraySize = sz;       // fine, arraySize is const copy of sz
std::array<int, arraySize> data; // error! arraySize's value unknown at compilation

All constexpr objects are const, but not all const objects are constexpr.

If you want compilers to guarantee that a variable has a value that can be used in contexts requiring compile-time constants, the tool to reach for is constexpr, not const.

Only JavaScript code without dependencies:

var p = {"p1": "value1", "p2": "value2", "p3": "value3"};
keys = Object.keys(p);   // ["p1", "p2", "p3"]

for(i = 0; i < keys.length; i++){
  console.log(keys[i] + "=" + p[keys[i]]);   // p1=value1, p2=value2, p3=value3
}

I have made a lightweight backup method for the Mobile-AppSales app available at github

I wrote about it here http://memention.com/blog/2009/11/22/Lightweight-backup.html

Look for the - (void)startUpload method in ReportManager.m

First you need to load the user details somehow

Then you need to find your EditText if you don't have it-

EditText et = (EditText)findViewById(R.id.youredittext);

after you've found your EditText, call

et.setText(theUserName);

Give width of image as match_parent and height as required, say 300 dp.

<ImageView
    android:id = "@+id/imgXYZ"
    android:layout_width = "match_parent"
    android:layout_height = "300dp"
    android:src="@drawable/imageXYZ"
    />

private and protected concepts are very important. But python - just a tool for prototyping and rapid development with restricted resources available for development, that is why some of protection levels are not so strict followed in python. You can use "__" in class member, it works properly, but looks not good enough - each access to such field contains these characters.

Also, you can noticed that python OOP concept is not perfect, smaltalk or ruby much closer to pure OOP concept. Even C# or Java are closer.

Python is very good tool. But it is simplified OOP language. Syntactically and conceptually simplified. The main goal of python existence is to bring to developers possibility to write easy readable code with high abstraction level in a very fast manner.

You can't have a link to SCSS File in your HTML page.You have to compile it down to CSS First. No there are lots of video tutorials you might want to check out. Lynda provides great video tutorials on SASS. there are also free screencasts you can google...

For official documentation visit this site http://sass-lang.com/documentation/file.SASS_REFERENCE.html And why have you chosen notepad to write Sass?? you can easily download some free text editors for better code handling.

My solution was to add a space between the $ and the {.

For example:

@Value("${appclient.port:}")

becomes

@Value("$ {appclient.port:}")

This can be simplified by completely skipping the where object and the $users declaration. All you need is:

Code

get-content c:\scripts\users.txt | get-aduser -properties * | select displayname, office | export-csv c:\path\to\your.csv

Specifically, rm yarn.lock and then yarn install fixed this for me.

List<Card> list = new ArrayList<Card>(Arrays.asList(hand));

compactitem does the job.

\usepackage{paralist}

...

\begin{compactitem}[$\bullet$]
    \item Element 1
    \item Element 2
\end{compactitem}
\vspace{\baselineskip} % new line after list

I've found my own solution.

Download FreeDOS from here: http://chtaube.eu/computers/freedos/bootable-usb/

Then using my Counter.exe file (which basically generates a Counter.txt file and increments the number inside every time it's being called), I can assign the value of the number to a variable using:

Set /P Variable =< Counter.txt

Then, I can check if it has run 250 cycles by doing:

if %variable%==250 echo PASS

BTW, I still can't use Set /A since FreeDOS doesn't support this command, but at least it supports the Set /P command.

I have faced and solved the tensor->ndarray conversion in the specific case of tensors representing (adversarial) images, obtained with cleverhans library/tutorials.

I think that my question/answer (here) may be an helpful example also for other cases.

I'm new with TensorFlow, mine is an empirical conclusion:

It seems that tensor.eval() method may need, in order to succeed, also the value for input placeholders. Tensor may work like a function that needs its input values (provided into feed_dict) in order to return an output value, e.g.

array_out = tensor.eval(session=sess, feed_dict={x: x_input})

Please note that the placeholder name is x in my case, but I suppose you should find out the right name for the input placeholder. x_input is a scalar value or array containing input data.

In my case also providing sess was mandatory.

My example also covers the matplotlib image visualization part, but this is OT.

&& and || take scalar inputs and short-circuit always. | and & take array inputs and short-circuit only in if/while statements. For assignment, the latter do not short-circuit.

See these doc pages for more information.

Since you are disabling it in the first place, the way to enable it is to set its disabled property as false.

To change its disabled property in Javascript, you use this:

var btn = document.getElementById("Button");
btn.disabled = false;

And obviously to disable it again, you'd use true instead.

Since you also tagged the question with jQuery, you could use the .prop method. Something like:

var btn = $("#Button");
btn.prop("disabled", true);   // Or `false`

This is in the newer versions of jQuery. The older way to do this is to add or remove an attribute like so:

var btn = $("#Button");
btn.attr("disabled", "disabled");
// or
btn.removeAttr("disabled");

The mere presence of the disabled property disables the element, so you cannot set its value as "false". Even the following should disable the element

<input type="button" value="Submit" disabled="" />

You need to either remove the attribute completely or set its property.

The only reason that the linter complains about using setState({..}) in componentDidMount and componentDidUpdate is that when the component render the setState immediately causes the component to re-render. But the most important thing to note: using it inside these component's lifecycles is not an anti-pattern in React.

Please take a look at this issue. you will understand more about this topic. Thanks for reading my answer.

If you like the idea of Views, but are worried about performance you can get Oracle to create a cached table representing the view which oracle keeps up to date.
See materialized views

Run below commands in Terminal:

npm install --save-dev webpack

npm install --save-dev webpack-dev-server

Here look at how I done it; Jsfiddle

With the Code I put in, I managed to get it working on Webkit (Chrome/Safari) and Firefox. I don't know if it works with the latest version of Opera. Yes it does work under the latest version of Opera.

#wrapper {
  width: 300px; height: 300px;
  border-radius: 100px;
  overflow: hidden;
  position: absolute; /* this breaks the overflow:hidden in Chrome/Opera */
}

#box {
  width: 300px; height: 300px;
  background-color: #cde;
  border-radius: 100px;
  -webkit-border-radius: 100px;
  -moz-border-radius: 100px;
  -o-border-radius: 100px;
}

Even better!

long tStart = System.nanoTime();
long tEnd = System.nanoTime();
long tRes = tEnd - tStart; // time in nanoseconds

Read the documentation about nanoTime()!

This will help you. Don't forget to add the JAR HttpClient.jar to the classpath.

import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;

public class MainSendRequest {

     static String url =
         "http://localhost:8080/HttpRequestSample/RequestSend.jsp";

    public static void main(String[] args) {

        //Instantiate an HttpClient
        HttpClient client = new HttpClient();

        //Instantiate a GET HTTP method
        PostMethod method = new PostMethod(url);
        method.setRequestHeader("Content-type",
                "text/xml; charset=ISO-8859-1");

        //Define name-value pairs to set into the QueryString
        NameValuePair nvp1= new NameValuePair("firstName","fname");
        NameValuePair nvp2= new NameValuePair("lastName","lname");
        NameValuePair nvp3= new NameValuePair("email","[email protected]");

        method.setQueryString(new NameValuePair[]{nvp1,nvp2,nvp3});

        try{
            int statusCode = client.executeMethod(method);

            System.out.println("Status Code = "+statusCode);
            System.out.println("QueryString>>> "+method.getQueryString());
            System.out.println("Status Text>>>"
                  +HttpStatus.getStatusText(statusCode));

            //Get data as a String
            System.out.println(method.getResponseBodyAsString());

            //OR as a byte array
            byte [] res  = method.getResponseBody();

            //write to file
            FileOutputStream fos= new FileOutputStream("donepage.html");
            fos.write(res);

            //release connection
            method.releaseConnection();
        }
        catch(IOException e) {
            e.printStackTrace();
        }
    }
}

Use empty(). It checks for both empty strings and null.

if (!empty($_POST['user'])) {
  // do stuff
}

From the manual:

The following things are considered to be empty:

"" (an empty string)  
0 (0 as an integer)  
0.0 (0 as a float)  
"0" (0 as a string)    
NULL  
FALSE  
array() (an empty array)  
var $var; (a variable declared, but without a value in a class)  

You can use Hash#reject to remove empty key/value pairs from a ruby Hash.

# Remove empty strings
{ a: 'first', b: '', c: 'third' }.reject { |key,value| value.empty? } 
#=> {:a=>"first", :c=>"third"}

# Remove nil
{a: 'first', b: nil, c: 'third'}.reject { |k,v| v.nil? } 
# => {:a=>"first", :c=>"third"}

# Remove nil & empty strings
{a: '', b: nil, c: 'third'}.reject { |k,v| v.nil? || v.empty? } 
# => {:c=>"third"}

Take a look at this example: JS Fiddle

function toggleClass(element, className){
    if (!element || !className){
        return;
    }

    var classString = element.className, nameIndex = classString.indexOf(className);
    if (nameIndex == -1) {
        classString += ' ' + className;
    }
    else {
        classString = classString.substr(0, nameIndex) + classString.substr(nameIndex+className.length);
    }
    element.className = classString;
}

You could use the tr instead:

       $p =~ tr/fo//d;

will delete every f and every o from $p. In your case it should be:

       $p =~ tr/\$#@~!&*()[];.,:?^ `\\\///d

See Perl's tr documentation.

tr/SEARCHLIST/REPLACEMENTLIST/cdsr

Transliterates all occurrences of the characters found (or not found if the /c modifier is specified) in the search list with the positionally corresponding character in the replacement list, possibly deleting some, depending on the modifiers specified.

[…]

If the /d modifier is specified, any characters specified by SEARCHLIST not found in REPLACEMENTLIST are deleted.

@CMS's answer is just fine, but I want to note that you can use this package: https://github.com/sindresorhus/slugify, which does it for you and covers many edge cases (i.e., German umlauts, Vietnamese, Arabic, Russian, Romanian, Turkish, etc.).

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

Just to swim upstream, static members and classes do not participate in OO and are therefore evil. No, not evil, but seriously, I would recommend a regular class with a singleton pattern for access. This way if you need to override behavior in any cases down the road, it isn't a major retooling. OO is your friend :-)

My $.02

with open("input", "rb") as input:
    with open("output", "wb") as output:
        while True:
            data = input.read(1024)
            if data == "":
                break
            output.write(data)

The above will read 1 kilobyte at a time, and write it. You can support incredibly large files this way, as you won't need to read the entire file into memory.

DELETE FROM on_search WHERE search_date < NOW() - INTERVAL N DAY

Replace N with your day count

Considering @Ben answer, R would throw an error if df1 does not contain x column. But it can be solved elegantly with paste:

aggregate(paste(Year, Month) ~ Year + Month, data = df1, FUN = NROW)

Similarly, it can be generalized if more than two variables are used in grouping:

aggregate(paste(Year, Month, Day) ~ Year + Month + Day, data = df1, FUN = NROW)

Since I found no complete answer on this theme I've put together a class that should handle this properly, with support for:

• Formatting: Easily format a double to string with a certain number of decimal places
• Parsing: Parse the formatted value back to double
• Locale: Format and parse using the default locale
• Exponential notation: Start using exponential notation after a certain threshold

Usage is pretty simple:

(For the sake of this example I am using a custom locale)

public static final int DECIMAL_PLACES = 2;

NumberFormatter formatter = new NumberFormatter(DECIMAL_PLACES);

String value = formatter.format(9.319); // "9,32"
String value2 = formatter.format(0.0000005); // "5,00E-7"
String value3 = formatter.format(1324134123); // "1,32E9"

double parsedValue1 = formatter.parse("0,4E-2", 0); // 0.004
double parsedValue2 = formatter.parse("0,002", 0); // 0.002
double parsedValue3 = formatter.parse("3423,12345", 0); // 3423.12345

Here is the class:

import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.ParseException;
import java.util.Locale;

public class NumberFormatter {

    private static final String SYMBOL_INFINITE           = "\u221e";
    private static final char   SYMBOL_MINUS              = '-';
    private static final char   SYMBOL_ZERO               = '0';
    private static final int    DECIMAL_LEADING_GROUPS    = 10;
    private static final int    EXPONENTIAL_INT_THRESHOLD = 1000000000; // After this value switch to exponential notation
    private static final double EXPONENTIAL_DEC_THRESHOLD = 0.0001; // Below this value switch to exponential notation

    private DecimalFormat decimalFormat;
    private DecimalFormat decimalFormatLong;
    private DecimalFormat exponentialFormat;

    private char groupSeparator;

    public NumberFormatter(int decimalPlaces) {
        configureDecimalPlaces(decimalPlaces);
    }

    public void configureDecimalPlaces(int decimalPlaces) {
        if (decimalPlaces <= 0) {
            throw new IllegalArgumentException("Invalid decimal places");
        }

        DecimalFormatSymbols separators = new DecimalFormatSymbols(Locale.getDefault());
        separators.setMinusSign(SYMBOL_MINUS);
        separators.setZeroDigit(SYMBOL_ZERO);

        groupSeparator = separators.getGroupingSeparator();

        StringBuilder decimal = new StringBuilder();
        StringBuilder exponential = new StringBuilder("0.");

        for (int i = 0; i < DECIMAL_LEADING_GROUPS; i++) {
            decimal.append("###").append(i == DECIMAL_LEADING_GROUPS - 1 ? "." : ",");
        }

        for (int i = 0; i < decimalPlaces; i++) {
            decimal.append("#");
            exponential.append("0");
        }

        exponential.append("E0");

        decimalFormat = new DecimalFormat(decimal.toString(), separators);
        decimalFormatLong = new DecimalFormat(decimal.append("####").toString(), separators);
        exponentialFormat = new DecimalFormat(exponential.toString(), separators);

        decimalFormat.setRoundingMode(RoundingMode.HALF_UP);
        decimalFormatLong.setRoundingMode(RoundingMode.HALF_UP);
        exponentialFormat.setRoundingMode(RoundingMode.HALF_UP);
    }

    public String format(double value) {
        String result;
        if (Double.isNaN(value)) {
            result = "";
        } else if (Double.isInfinite(value)) {
            result = String.valueOf(SYMBOL_INFINITE);
        } else {
            double absValue = Math.abs(value);
            if (absValue >= 1) {
                if (absValue >= EXPONENTIAL_INT_THRESHOLD) {
                    value = Math.floor(value);
                    result = exponentialFormat.format(value);
                } else {
                    result = decimalFormat.format(value);
                }
            } else if (absValue < 1 && absValue > 0) {
                if (absValue >= EXPONENTIAL_DEC_THRESHOLD) {
                    result = decimalFormat.format(value);
                    if (result.equalsIgnoreCase("0")) {
                        result = decimalFormatLong.format(value);
                    }
                } else {
                    result = exponentialFormat.format(value);
                }
            } else {
                result = "0";
            }
        }
        return result;
    }

    public String formatWithoutGroupSeparators(double value) {
        return removeGroupSeparators(format(value));
    }

    public double parse(String value, double defValue) {
        try {
            return decimalFormat.parse(value).doubleValue();
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return defValue;
    }

    private String removeGroupSeparators(String number) {
        return number.replace(String.valueOf(groupSeparator), "");
    }

}

Here is what I learned: PYTHONPATH is a directory to add to the Python import search path "sys.path", which is made up of current dir. CWD, PYTHONPATH, standard and shared library, and customer library. For example:

% python3 -c "import sys;print(sys.path)"
['', 
'/home/username/Documents/DjangoTutorial/mySite', 
'/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', 
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages']

where the first path '' denotes the current dir., the 2nd path is via

%export PYTHONPATH=/home/username/Documents/DjangoTutorial/mySite 

which can be added to ~/.bashrc to make it permanent, and the rest are Python standard and dynamic shared library plus third-party library such as django.

As said not to mess with PYTHONHOME, even setting it to '' or 'None' will cause python3 shell to stop working:

% export PYTHONHOME=''
% python3
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f18a44ff740 (most recent call first):
Aborted (core dumped)

Note that if you start a Python script, the CWD will be the script's directory. For example:

username@bud:~/Documents/DjangoTutorial% python3 mySite/manage.py runserver
==== Printing sys.path ====
/home/username/Documents/DjangoTutorial/mySite # CWD is where manage.py resides
/usr/lib/python3.6
/usr/lib/python3.6/lib-dynload
/usr/local/lib/python3.6/dist-packages
/usr/lib/python3/dist-packages

You can also append a path to sys.path at run-time: Suppose you have a file Fibonacci.py in ~/Documents/Python directory:

username@bud:~/Documents/DjangoTutorial% python3 
>>> sys.path.append("/home/username/Documents")
>>> print(sys.path)
['', '/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', 
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages', 
'/home/username/Documents']
>>> from Python import Fibonacci as fibo

or via

% PYTHONPATH=/home/username/Documents:$PYTHONPATH
% python3
>>> print(sys.path)
['', 
'/home/username/Documents', '/home/username/Documents/DjangoTutorial/mySite', 
'/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', 
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages']
>>> from Python import Fibonacci as fibo

I found this to accomplish the entire solution. The answer above fails to remove the window from the task bar.

private void ImportStatusForm_Resize(object sender, EventArgs e)
{
    if (this.WindowState == FormWindowState.Minimized)
    {
        notifyIcon.Visible = true;
        notifyIcon.ShowBalloonTip(3000);
        this.ShowInTaskbar = false;
    }
}

private void notifyIcon_MouseDoubleClick(object sender, MouseEventArgs e)
{
    this.WindowState = FormWindowState.Normal;
    this.ShowInTaskbar = true;
    notifyIcon.Visible = false;
}

Also it is good to set the following properties of the notify icon control using the forms designer.

this.notifyIcon.BalloonTipIcon = System.Windows.Forms.ToolTipIcon.Info; //Shows the info icon so the user doesn't think there is an error.
this.notifyIcon.BalloonTipText = "[Balloon Text when Minimized]";
this.notifyIcon.BalloonTipTitle = "[Balloon Title when Minimized]";
this.notifyIcon.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon.Icon"))); //The tray icon to use
this.notifyIcon.Text = "[Message shown when hovering over tray icon]";

From Swift2.0, Apple says:

"Always prefix type property requirements with the static keyword when you define them in a protocol. This rule pertains even though type property requirements can be prefixed with the class or static keyword when implemented by a class:"

The most simplest solution I have seen to supply a short execution to the UI thread is via the post() method of a view. This is needed since UI methods are not re-entrant. The method for this is:

package android.view;

public class View;

public boolean post(Runnable action);

The post() method corresponds to the SwingUtilities.invokeLater(). Unfortunately I didn't find something simple that corresponds to the SwingUtilities.invokeAndWait(), but one can build the later based on the former with a monitor and a flag.

So what you save by this is creating a handler. You simply need to find your view and then post on it. You can find your view via findViewById() if you tend to work with id-ed resources. The resulting code is very simple:

/* inside your non-UI thread */

view.post(new Runnable() {
        public void run() {
            /* the desired UI update */
        }
    });
}

Note: Compared to SwingUtilities.invokeLater() the method View.post() does return a boolean, indicating whether the view has an associated event queue. Since I used the invokeLater() resp. post() anyway only for fire and forget, I did not check the result value. Basically you should call post() only after onAttachedToWindow() has been called on the view.

Best Regards

MSI is basically an installer from Microsoft that is built into windows. It associates components with features and contains installation control information. It is not necessary that this file contains actual user required files i.e the application programs which user expects. MSI can contain another setup.exe inside it which the MSI wraps, which actually contains the user required files.

Hope this clears you doubt.

If you wish to have "Save as" dialog, just pass image into php script, which adds appropriate headers

Example "all-in-one" script script.php

<?php if(isset($_GET['image'])):
    $image = $_GET['image'];

    if(preg_match('#^data:image/(.*);base64,(.*)$#s', $image, $match)){
        $base64 = $match[2];
        $imageBody = base64_decode($base64);
        $imageFormat = $match[1];

        header('Content-type: application/octet-stream');
        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: private", false); // required for certain browsers
        header("Content-Disposition: attachment; filename=\"file.".$imageFormat."\";" ); //png is default for toDataURL
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: ".strlen($imageBody));
        echo $imageBody;
    }
    exit();
endif;?>

<script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js?ver=1.7.2'></script>
<canvas id="canvas" width="300" height="150"></canvas>
<button id="btn">Save</button>
<script>
    $(document).ready(function(){
        var canvas = document.getElementById('canvas');
        var oCtx = canvas.getContext("2d");
        oCtx.beginPath();
        oCtx.moveTo(0,0);
        oCtx.lineTo(300,150);
        oCtx.stroke();

        $('#btn').on('click', function(){
            // opens dialog but location doesnt change due to SaveAs Dialog
            document.location.href = '/script.php?image=' + canvas.toDataURL();
        });
    });
</script>

I have the same problem but I just finished it!!

you should change to

public class ReceiptListAdapter extends BaseAdapter {

    public List<Receipt> receiptlist;
    private Context context;
    private LayoutInflater inflater;
    private DateHelpers dateH;
    private List<ReceiptViewHolder> receiptviewlist;

    public ReceiptListAdapter(Activity activity, Context mcontext, List<Receipt> rl) {
        context = mcontext;
        receiptlist = rl;
        receiptviewlist = new ArrayList<>();
        receiptviewlist.clear();
        for(int i = 0; i < receiptlist.size(); i++){
          ReceiptViewHolder receiptviewholder = new ReceiptViewHolder();
          receiptviewlist.add(receiptviewholder);
        }
        Collections.reverse(receiptlist);
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        dateH = new DateHelpers();
    }

    @Override
    public int getCount() {
        try {
            int size = receiptlist.size();
            return size;
        } catch(NullPointerException ex) {
            return 0;
        }
    }

    public void updateReceiptsList(List<Receipt> newlist) {
        receiptlist = newlist;
        this.notifyDataSetChanged();
    }

    @Override
    public Receipt getItem(int i) {
        return receiptlist.get(i);
    }

    @Override
    public long getItemId(int i) {
        return receiptlist.get(i).getReceiptId() ;
    }

    private String getPuntenString(Receipt r) {
        if(r.getPoints().equals("1")) {
            return "1 punt";
        }
        return r.getPoints()+" punten";
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;

        final Receipt receipt = receiptlist.get(position);
        ReceiptViewHolder receiptviewholder;
        Typeface tf_hn = Typeface.createFromAsset(context.getAssets(), "helveticaneue.ttf");        
        Typeface tf_hn_bold = Typeface.createFromAsset(context.getAssets(), "helveticaneuebd.ttf");

        if (vi == null) { //convertview==null
            ReceiptViewHolder receiptviewholder = receiptviewlist.get(position);
            vi = inflater.inflate(R.layout.view_listitem_receipt, null);
            vi.setOnClickListener(null);
            vi.setOnLongClickListener(null);
            vi.setLongClickable(false);
            receiptviewholder.shop = (TextView) vi.findViewById(R.id.tv_listitemreceipt_shop);
            receiptviewholder.date = (TextView) vi.findViewById(R.id.tv_listitemreceipt_date);
            receiptviewholder.price = (TextView) vi.findViewById(R.id.tv_listitemreceipt_price);
            receiptviewholder.points = (TextView) vi.findViewById(R.id.tv_listitemreceipt_points);
            receiptviewholder.shop.setTypeface(tf_hn_bold);
            receiptviewholder.price.setTypeface(tf_hn_bold);
            vi.setTag(receiptviewholder);
        }else{//convertview is not null
            receiptviewholder = (ReceiptViewHolder)vi.getTag();
        }

        receiptviewholder.shop.setText(receipt.getShop());
        receiptviewholder.date.setText(dateH.timestampToDateString(Long.parseLong(receipt.getPurchaseDate())));
        receiptviewholder.price.setText("€ "+receipt.getPrice());
        receiptviewholder.points.setText(getPuntenString(receipt));

        vi.setClickable(false);
        return vi;
    }

    public static class ReceiptViewHolder {
        public TextView shop;
        public TextView date;
        public TextView price;
        public TextView points;
    }

    public Object getFilter() {
        // XXX Auto-generated method stub
        return null;
    }

}

I use this to avoid negative interval.

var seconds = (date1< date2)? (date2- date1).TotalSeconds: (date1 - date2).TotalSeconds;

You shouldn't use both ngRoute and UI-router. Here's a sample code for UI-router:

repoApp.config(function($stateProvider, $urlRouterProvider) {_x000D_
  _x000D_
  $stateProvider_x000D_
    .state('state1', {_x000D_
      url: "/state1",_x000D_
      templateUrl: "partials/state1.html",_x000D_
      controller: 'YourCtrl'_x000D_
    })_x000D_
    _x000D_
    .state('state2', {_x000D_
      url: "/state2",_x000D_
      templateUrl: "partials/state2.html",_x000D_
      controller: 'YourOtherCtrl'_x000D_
    });_x000D_
    $urlRouterProvider.otherwise("/state1");_x000D_
});_x000D_
//etc.

You can find a great answer on the difference between these two in this thread: What is the difference between angular-route and angular-ui-router?

You can also consult UI-Router's docs here: https://github.com/angular-ui/ui-router

This is not an answer, but too long for a comment.

In reply to JP's answers / comments, I have run the following test to compare the performance of the 2 methods. The Profiler object is a custom class - but in summary, it uses a kernel32 function which is fairly accurate (Private Declare Sub GetLocalTime Lib "kernel32" (lpSystemTime As SYSTEMTIME)).

Sub test()

  Dim origNum As String
  Dim creditOrDebit As String
  Dim b As Boolean
  Dim p As Profiler
  Dim i As Long

  Set p = New_Profiler

  origNum = "30062600006"
  creditOrDebit = "D"

  p.startTimer ("nested_ifs")

  For i = 1 To 1000000

    If creditOrDebit = "D" Then
      If origNum = "006260006" Then
        b = True
      ElseIf origNum = "30062600006" Then
        b = True
      End If
    End If

  Next i

  p.stopTimer ("nested_ifs")
  p.startTimer ("or_and")

  For i = 1 To 1000000

    If (origNum = "006260006" Or origNum = "30062600006") And creditOrDebit = "D" Then
      b = True
    End If

  Next i

  p.stopTimer ("or_and")

  p.printReport

End Sub

The results of 5 runs (in ms for 1m loops):

20-Jun-2012 19:28:25
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:26
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:27
nested_ifs (x1): 140 - Last Run: 140 - Average Run: 140
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:28
nested_ifs (x1): 140 - Last Run: 140 - Average Run: 140
or_and (x1): 141 - Last Run: 141 - Average Run: 141

20-Jun-2012 19:28:29
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

Note

If creditOrDebit is not "D", JP's code runs faster (around 60ms vs. 125ms for the or/and code).

As the previous answer did show an example of how the full hook might look like here is the code of my working post-receive hook:

#!/usr/bin/python

import sys
from subprocess import call

if __name__ == '__main__':
    for line in sys.stdin.xreadlines():
        old, new, ref = line.strip().split(' ')
        if ref == 'refs/heads/master':
            print "=============================================="
            print "Pushing to master. Triggering jenkins.        "
            print "=============================================="
            sys.stdout.flush()
            call(["curl", "-sS", "http://jenkinsserver/git/notifyCommit?url=ssh://user@gitserver/var/git/repo.git"])

In this case I trigger jenkins jobs only when pushing to master and not other branches.

The file format would permit up to 255-character worksheet names, but if the Excel UI doesn't want you exceeding 31 characters, don't try to go beyond 31. App's full of weird undocumented limits and quirks, and feeding it files that are within spec but not within the range of things the testers would have tested usually causes REALLY strange behavior. (Personal favorite example: using the Excel 4.0 bytecode for an if() function, in a file with an Excel 97-style stringtable, disabled the toolbar button for bold in Excel 97.)

Here is another quick approach without using additional panel.

JFrame f = new JFrame("stackoverflow") { 
  private Image backgroundImage = ImageIO.read(new File("background.jpg"));
  public void paint( Graphics g ) { 
    super.paint(g);
    g.drawImage(backgroundImage, 0, 0, null);
  }
};

some time edit text cursor donot comes at particular position is if we directly use editText.setSelection(position); . In that case you can try

editText.post(new Runnable() {
                @Override
                public void run() {
                    editText.setSelection(string.length());
                }
            });

getContext() came in API 23. Replace it with getActivity() everywhere in the code.

See if it fixes the error. Try to use methods which are in between the target and minimun API level, else this error will come in place.

I'm new to Java, but one way I use static variables, as I'm assuming many people do, is to count the number of instances of the class. e.g.:

public Class Company {
    private static int numCompanies;

    public static int getNumCompanies(){
        return numCompanies;
    }
}

Then you can sysout:

Company.getNumCompanies();

You can also get access to numCompanies from each instance of the class (which I don't completely understand), but it won't be in a "static way". I have no idea if this is best practice or not, but it makes sense to me.

I f you want just the first element try this: b = (a-set()).pop()

@Transient complies with your needs.

Swift 4

You can create a extension on DispatchQueue and add function delay which uses DispatchQueue asyncAfter function internally

extension DispatchQueue {
   static func delay(_ delay: DispatchTimeInterval, closure: @escaping () -> ()) {
      DispatchQueue.main.asyncAfter(deadline: .now() + delay, execute: closure)
   }
}

and use

DispatchQueue.delay(.milliseconds(10)) {
   print("task to be done")
}

the following two ways work well:

C:\>mongodb\bin\mongoimport --jsonArray -d test -c docs --file example2.json
C:\>mongodb\bin\mongoimport --jsonArray -d test -c docs < example2.json

if the collections are under a specific user, you can use -u -p --authenticationDatabase

Just follow these Steps :

If you want the contents of, say, C1 to mirror the contents of cell A1, you just need to set the formula in C1 to =A1. From this point forward, anything you type in A1 will show up in C1 as well.

To Link Multiple Cells in Excel From Another Worksheet :

Step 1

Click the worksheet tab at the bottom of the screen that contains a range of precedent cells to which you want to link. A range is a block or group of adjacent cells. For example, assume you want to link a range of blank cells in “Sheet1” to a range of precedent cells in “Sheet2.” Click the “Sheet2” tab.

Step 2

Determine the precedent range’s width in columns and height in rows. In this example, assume cells A1 through A4 on “Sheet2” contain a list of numbers 1, 2, 3 and 4, respectively, which will be your precedent cells. This precedent range is one column wide by four rows high.

Step 3

Click the worksheet tab at the bottom of the screen that contains the blank cells in which you will insert a link. In this example, click the “Sheet1” tab.

Step 4

Select the range of blank cells you want to link to the precedent cells. This range must be the same size as the precedent range, but can be in a different location on the worksheet. Click and hold the mouse button on the top left cell of the range, drag the mouse cursor to the bottom right cell in the range and release the mouse button to select the range. In this example, assume you want to link cells C1 through C4 to the precedent range. Click and hold on cell C1, drag the mouse to cell C4 and release the mouse to highlight the range.

Step 5

Type “=,” the worksheet name containing the precedent cells, “!,” the top left cell of the precedent range, “:” and the bottom right cell of the precedent range. Press “Ctrl,” “Shift” and “Enter” simultaneously to complete the array formula. Each dependent cell is now linked to the cell in the precedent range that’s in the same respective location within the range. In this example, type “=Sheet2!A1:A4” and press “Ctrl,” “Shift” and “Enter” simultaneously. Cells C1 through C4 on “Sheet1” now contain the array formula “{=Sheet2!A1:A4}” surrounded by curly brackets, and show the same data as the precedent cells in “Sheet2.”

Good Luck !!!

HttpClient webClient = new HttpClient();
Uri uri = new Uri("your url");
HttpResponseMessage response = await webClient.GetAsync(uri)
var jsonString = await response.Content.ReadAsStringAsync();
var objData = JsonConvert.DeserializeObject<List<CategoryModel>>(jsonString);

I've been searching answer but couldn't find but finally I could fix this by adding play-service-ads dependency let's try this:

*) File -> Project Structure... -> Under the module you can find app and there is a option called dependencies and you can add com.google.android.gms:play-services-ads:x.x.x dependency to your project

I faced this problem when I try to import Eclipse projects into Android Studio.

Integer foo[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };

List<Integer> list = Arrays.asList(foo);
// or
Iterable<Integer> iterable = Arrays.asList(foo);

Though you need to use an Integer array (not an int array) for this to work.

For primitives, you can use guava:

Iterable<Integer> fooBar = Ints.asList(foo);

<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>15.0</version>
    <type>jar</type>
</dependency>

For Java8: (from Jin Kwon's answer)

final int[] arr = {1, 2, 3};
final PrimitiveIterator.OfInt i1 = Arrays.stream(arr).iterator();
final PrimitiveIterator.OfInt i2 = IntStream.of(arr).iterator();
final Iterator<Integer> i3 = IntStream.of(arr).boxed().iterator();

The Host Header tells the webserver which virtual host to use (if set up). You can even have the same virtual host using several aliases (= domains and wildcard-domains). In this case, you still have the possibility to read that header manually in your web app if you want to provide different behavior based on different domains addressed. This is possible because in your webserver you can (and if I'm not mistaken you must) set up one vhost to be the default host. This default vhost is used whenever the host header does not match any of the configured virtual hosts.

That means: You get it right, although saying "multiple hosts" may be somewhat misleading: The host (the addressed machine) is the same, what really gets resolved to the IP address are different domain names (including subdomains) that are also referred to as hostnames (but not hosts!).

Although not part of the question, a fun fact: This specification led to problems with SSL in early days because the web server has to deliver the certificate that corresponds to the domain the client has addressed. However, in order to know what certificate to use, the webserver should have known the addressed hostname in advance. But because the client sends that information only over the encrypted channel (which means: after the certificate has already been sent), the server had to assume you browsed the default host. That meant one ssl-secured domain per IP address / port-combination.

This has been overcome with Server Name Indication; however, that again breaks some privacy, as the server name is now transferred in plain text again, so every man-in-the-middle would see which hostname you are trying to connect to.

Although the webserver would know the hostname from Server Name Indication, the Host header is not obsolete, because the Server Name Indication information is only used within the TLS handshake. With an unsecured connection, there is no Server Name Indication at all, so the Host header is still valid (and necessary).

Another fun fact: Most webservers (if not all) reject your HTTP request if it does not contain exactly one Host header, even if it could be omitted because there is only the default vhost configured. That means the minimum required information in an http-(get-)request is the first line containing METHOD RESOURCE and PROTOCOL VERSION and at least the Host header, like this:

GET /someresource.html HTTP/1.1
Host: www.example.com

In the MDN Documentation on the "Host" header they actually phrase it like this:

A Host header field must be sent in all HTTP/1.1 request messages. A 400 (Bad Request) status code will be sent to any HTTP/1.1 request message that lacks a Host header field or contains more than one.

As mentioned by Darrel Miller, the complete specs can be found in RFC7230.

Check your short_open_tag setting (use <?php phpinfo() ?> to see its current setting).

Be careful using SelectedItem.Text... If there is no item selected, then SelectedItem will be null and SelectedItem.Text will generate a null-value exception.

.NET should have provided a SelectedText property like the SelectedValue property that returns String.Empty when there is no selected item.

You can clean up a zombie process by killing its parent process with the following command:

kill -HUP $(ps -A -ostat,ppid | awk '{/[zZ]/{ print $2 }')