For folks interested in using JDOM, but afraid that hasn't been updated in a while (especially not leveraging Java generics), there is a fork called CoffeeDOM which exactly addresses these aspects and modernizes the JDOM API, read more here:

http://cdmckay.org/blog/2011/05/20/introducing-coffeedom-a-jdom-fork-for-java-5/

and download it from the project page at:

https://github.com/cdmckay/coffeedom

static variables are stored in the heap

To learn what row was selected, add a ListSelectionListener, as shown in How to Use Tables in the example SimpleTableSelectionDemo. A JList can be constructed directly from the linked list's toArray() method, and you can add a suitable listener to it for details.

In Xcode 9, you can finally use Tab and Shift+Tab to indent multiple lines of code. Yay!

` Please include either of these:

`#include<sstream>`

using std::istringstream; 

All previous answers are great, and I'd like to plug in one more point.

From generative algorithm models, we can derive any distribution; while we can only obtain the conditional distribution P(Y|X) from the discriminative algorithm models(or we can say they are only useful for discriminating Y’s label), and that's why it is called discriminative model. The discriminative model doesn't assume that the X's are independent given the Y($X_i \perp X_{-i} | Y$) and hence is usually more powerful for calculating that conditional distribution.

I found a solution, which works, but does result in a Warning (WARN/Resources(268): Converting to float: TypedValue{t=0x3/d=0x4d "1.2" a=2 r=0x7f06000a}) in LogCat.

<resources>
    <string name="text_line_spacing">1.2</string>
</resources>

<android:lineSpacingMultiplier="@string/text_line_spacing"/>

In case anyone is looking for a solution without code, I created an example to do this completely in the storyboard, using Auto Layout.

You can get it from github.

Basically, to recreate the example (for vertical scrolling):

1. Create a UIScrollView, and set its constraints.
2. Add a UIStackView to the UIScrollView
3. Set the constraints: Leading, Trailing, Top & Bottom should be equal to the ones from UIScrollView
4. Set up an equal Width constraint between the UIStackView and UIScrollView.
5. Set Axis = Vertical, Alignment = Fill, Distribution = Equal Spacing, and Spacing = 0 on the UIStackView
6. Add a number of UIViews to the UIStackView
7. Run

Exchange Width for Height in step 4, and set Axis = Horizontal in step 5, to get a horizontal UIStackView.

Both the below options work well.

$ zgrep -ai 'CDF_FEED' FeedService.log.1.05-31-2019-150003.tar.gz | more
2019-05-30 19:20:14.568 ERROR 281 --- [http-nio-8007-exec-360] DrupalFeedService  : CDF_FEED_SERVICE::CLASSIFICATION_ERROR:408: Classification failed even after maximum retries for url : abcd.html

$ zcat FeedService.log.1.05-31-2019-150003.tar.gz | grep -ai 'CDF_FEED'
2019-05-30 19:20:14.568 ERROR 281 --- [http-nio-8007-exec-360] DrupalFeedService  : CDF_FEED_SERVICE::CLASSIFICATION_ERROR:408: Classification failed even after maximum retries for url : abcd.html

You first have to tell Gnuplot to use a style that uses points, e.g. with points or with linespoints. Try for example:

plot sin(x) with points

Output:

Now try:

plot sin(x) with points pointtype 5

Output:

You may also want to look at the output from the test command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:

json = File.ReadAllText(System.AppDomain.CurrentDomain.BaseDirectory + "App_Data\\" +download_file[0]);
DataTable dt = (DataTable)JsonConvert.DeserializeObject(json, (typeof(DataTable)));

You're looking for

foreach (Control x in this.Controls)
{
  if (x is TextBox)
  {
    ((TextBox)x).Text = String.Empty;
  }
}

Here is a very basic but modern implementation of required radio buttons with native HTML5 validation:

fieldset { 
  display: block;
  margin-left: 0;
  margin-right: 0;
  padding-top: 0;
  padding-bottom: 0;
  padding-left: 0;
  padding-right: 0;
  border: none;
}
body {font-size: 15px; font-family: serif;}
input {
  background: transparent;
  border-radius: 0px;
  border: 1px solid black;
  padding: 5px;
  box-shadow: none!important;
  font-size: 15px; font-family: serif;
}
input[type="submit"] {padding: 5px 10px; margin-top: 5px;}
label {display: block; padding: 0 0 5px 0;}
form > div {margin-bottom: 1em; overflow: auto;}
.hidden {
  opacity: 0; 
  position: absolute; 
  pointer-events: none;
}
.checkboxes label {display: block; float: left;}
input[type="radio"] + span {
  display: block;
  border: 1px solid black;
  border-left: 0;
  padding: 5px 10px;
}
label:first-child input[type="radio"] + span {border-left: 1px solid black;}
input[type="radio"]:checked + span {background: silver;}

<form>
  <div>
    <label for="name">Name (optional)</label>
    <input id="name" type="text" name="name">
  </div>
  <fieldset>
  <legend>Gender</legend>
  <div class="checkboxes">
    <label for="male"><input id="male" type="radio" name="gender" value="male" class="hidden" required="required"><span>Male</span></label>
    <label for="female"><input id="female" type="radio" name="gender" value="female" class="hidden" required="required"><span>Female </span></label>
    <label for="other"><input id="other" type="radio" name="gender" value="other" class="hidden" required="required"><span>Other</span></label>
  </div>
  </fieldset>
  <input type="submit" value="Send" />
</form>

Although I am a big fan of the minimalistic approach of using native HTML5 validation, you might want to replace it with Javascript validation on the long run. Javascript validation gives you far more control over the validation process and it allows you to set real classes (instead of pseudo classes) to improve the styling of the (in)valid fields. This native HTML5 validation can be your fall-back in case of broken (or lack of) Javascript. You can find an example of that here, along with some other suggestions on how to make Better forms, inspired by Andrew Cole.

The proper way to do this is to use dispatch_async in the main_queue, as I did in the following code

dispatch_async(dispatch_get_main_queue(), {
    (self.delegate as TBGQRCodeViewController).displayQRCode(receiveAddr, withAmountInBTC:amountBTC)
})

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

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

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

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

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

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

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

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

I usually overload my method with IEnumerable and IList in this situation.

public static IEnumerable<T> Method<T>( this IList<T> source ){... }

public static IEnumerable<T> Method<T>( this IEnumerable<T> source )
{
    /*input checks on source parameter here*/
    return Method( source.ToList() );
}

I take care to explain in the summary comments of the methods that calling IEnumerable will perform a .ToList().

The programmer can choose to .ToList() at a higher level if multiple operations are being concatenated and then call the IList overload or let my IEnumerable overload take care of that.

If you do not mind using an external library, Thumbnailator can perform scaling of BufferedImages.

Thumbnailator will take care of handling the Java 2D processing (such as using Graphics2D and setting appropriate rendering hints) so that a simple fluent API call can be used to resize images:

BufferedImage image = Thumbnails.of(originalImage).scale(2.0).asBufferedImage();

Although Thumbnailator, as its name implies, is geared toward shrinking images, it will do a decent job enlarging images as well, using bilinear interpolation in its default resizer implementation.

Disclaimer: I am the maintainer of the Thumbnailator library.

I noticed "[" indexing columns fails to create levels when iterating:

for ( a_feature in convert.to.factors) {
feature.df[a_feature] <- factor(feature.df[a_feature]) }

It creates, e.g. for the "Status" column:

Status : Factor w/ 1 level "c(\"Success\", \"Fail\")" : NA NA NA ...

Which is remedied by using "[[" indexing:

for ( a_feature in convert.to.factors) {
feature.df[[a_feature]] <- factor(feature.df[[a_feature]]) }

Giving instead, as desired:

. Status : Factor w/ 2 levels "Success", "Fail" : 1 1 2 1 ...

I have handled this as below:

try {
  response = restTemplate.postForEntity(requestUrl, new HttpEntity<>(requestBody, headers), String.class);
} catch (HttpStatusCodeException ex) {
  response = new ResponseEntity<String>(ex.getResponseBodyAsString(), ex.getResponseHeaders(), ex.getStatusCode());
}

From Apache Commons library:

import org.apache.commons.lang3.StringUtils

Use:

StringUtils.join(slist, ',');

Another similar question and answer here

This should happen automatically, so long as cms, admin and chart are all parts of the repository.

A likely issue is that each of these plugins is a git submodule.

Run git help submodule for more information.

EDIT

For doing this in bash:

cd plugins
for f in cms admin chart
do 
  cd $f && git pull origin master && cd ..
done

Backup==>

Option1: To take backup along with password in cmd
1.PGPASSWORD="mypassword" pg_dump -U postgres -h localhost --inserts mydb>mydb.sql
Option2: To take backup without password in cmd
2. pg_dump -U postgres -h localhost --inserts mydb>mydb.sql
Option3: To take backup as gzip(if database is huge)
3. pg_dump -U postgres -h localhost mydb --inserts | gzip > mydb.gz

Restore:
1. psql -h localhost -d mydb -U postgres -p 5432 < mydb.sql

I'm using

Sheet1.Range("E2", "E3000").NumberFormat = "dd/mm/yyyy hh:mm:ss"

to format a column

So I guess

Sheet1.Range("E2", "E3000").NumberFormat = "MMM dd yyyy"

would do the trick for you.

More: NumberFormat function.

For Spark 2.0.2 with grouping by multiple columns:

import org.apache.spark.sql.functions.row_number
import org.apache.spark.sql.expressions.Window

val w = Window.partitionBy($"col1", $"col2", $"col3").orderBy($"timestamp".desc)

val refined_df = df.withColumn("rn", row_number.over(w)).where($"rn" === 1).drop("rn")

You could also connect with flag

-o ServerAliveInterval=<secs>

You can try this also-

if( !$('#EventStartTimeMin').val() ) {
// do something
}

I developed my own function that convert human readable memory size to different sizes.

function convertMemorySize($strval, string $to_unit = 'b')
{
    $strval    = strtolower(str_replace(' ', '', $strval));
    $val       = floatval($strval);
    $to_unit   = strtolower(trim($to_unit))[0];
    $from_unit = str_replace($val, '', $strval);
    $from_unit = empty($from_unit) ? 'b' : trim($from_unit)[0];
    $units     = 'kmgtph';  // (k)ilobyte, (m)egabyte, (g)igabyte and so on...


    // Convert to bytes
    if ($from_unit !== 'b')
        $val *= 1024 ** (strpos($units, $from_unit) + 1);


    // Convert to unit
    if ($to_unit !== 'b')
        $val /= 1024 ** (strpos($units, $to_unit) + 1);


    return $val;
}


convertMemorySize('1024Kb', 'Mb');  // 1
convertMemorySize('1024', 'k')      // 1
convertMemorySize('5.2Mb', 'b')     // 5452595.2
convertMemorySize('10 kilobytes', 'bytes') // 10240
convertMemorySize(2048, 'k')        // By default convert from bytes, result is 2

This function accepts any memory size abbreviation like "Megabyte, MB, Mb, mb, m, kilobyte, K, KB, b, Terabyte, T...." so it is typo safe.

You should use something like this:

SELECT *
FROM (select salary2.*, rownum rnum from
         (select * from salary ORDER BY salary_amount DESC) salary2
  where rownum <= 2 )
WHERE rnum >= 2;

The first answer is essentially correct, but if you want the very simplest way to accomplish the desired result, here's a stand-alone code example demonstrating how to do it with a semaphore (which is also how dispatch groups work behind the scenes, JFYI):

#include <dispatch/dispatch.h>
#include <stdio.h>

main()
{
        dispatch_queue_t myQ = dispatch_queue_create("my.conQ", DISPATCH_QUEUE_CONCURRENT);
        dispatch_semaphore_t mySem = dispatch_semaphore_create(0);

        dispatch_async(myQ, ^{ printf("Hi I'm block one!\n"); sleep(2); dispatch_semaphore_signal(mySem);});
        dispatch_async(myQ, ^{ printf("Hi I'm block two!\n"); sleep(4); dispatch_semaphore_signal(mySem);});
        dispatch_async(myQ, ^{ dispatch_semaphore_wait(mySem, DISPATCH_TIME_FOREVER); printf("Hi, I'm the final block!\n"); });
        dispatch_main();
}

Many ways this can be achieved.

Simple approach should be taking Substring of an input string.

var result = input.Substring(input.Length - 3);

Another approach using Regular Expression to extract last 3 characters.

var result = Regex.Match(input,@"(.{3})\s*$");

Working Demo

The best way I found to resolve this issue was by using a combination of the above. All my cells were entered as a Custom Format to only show "HH:MM" - if I entered in "4:06" (being 4 minutes and 6 seconds) the field would show the numbers I entered correctly - but the data itself would represent HH:MM in the background.

Fortunately time is based on factors of 60 (60 seconds = 60 minutes). So 7H:15M / 60 = 7M:15S - I hope you can see where this is going. Accordingly, if I take my 4:06 and divide by 60 when working with the data (eg. to total up my total time or average time across 100 cells I would use the normal SUM or AVERAGE formulas and then divide by 60 in the formula.

Example =(SUM(A1:A5))/60. If my data was across the 5 time tracking fields was the 4:06, 3:15, 9:12, 2:54, 7:38 (representing MM:SS for us, but the data in the background is actually HH:MM) then when I work out the sum of those 5 fields are, what I want should be 27M:05S but what shows instead is 1D:03H:05M:00S. As mentioned above, 1D:3H:5M divided by 60 = 27M:5S ... which is the sum I am looking for.

Further examples of this are: =(SUM(G:G))/60 and =(AVERAGE(B2:B90)/60) and =MIN(C:C) (this is a direct check so no /60 needed here!).

Note that your "formula" or "calculation" fields (average, total time, etc) MUST have the custom format of MM:SS once you have divided by 60 as Excel's default thinking is in HH:MM (hence this issue). Your data fields where you are entering in your times should need to be changed from "General" or "Number" format to the custom format of HH:MM.

This process is still a little bit cumbersome to use - but it does mean that your data entry is still entered in very easy and is "correctly" displayed on screen as 4:06 (which most people would view as minutes:seconds when under a "Minutes" header). Generally there will only be a couple of fields needing to be used for formulas such as "best time", "average time", "total time" etc when tracking times and they will not usually be changed once the formula is entered so this will be a "one off" process - I use this for my call tracking sheet at work to track "average call", "total call time for day".

Typically, boolean values that are used in branches immediately after they're calculated like this are never actually stored in variables. Instead, the compiler just branches directly off the condition codes that were set from the preceding comparison. For example,

int a = SomeFunction();
bool result = --a >= 0; // use subtraction as example computation
if ( result ) 
{
   foo(); 
}
else
{
   bar();
}
return;

Usually compiles to something like:

call .SomeFunction  ; calls to SomeFunction(), which stores its return value in eax
sub eax, 1 ; subtract 1 from eax and store in eax, set S (sign) flag if result is negative
jl ELSEBLOCK ; GOTO label "ELSEBLOCK" if S flag is set
call .foo ; this is the "if" black, call foo()
j FINISH ; GOTO FINISH; skip over the "else" block
ELSEBLOCK: ; label this location to the assembler
call .bar
FINISH: ; both paths end up here
ret ; return

Notice how the "bool" is never actually stored anywhere.

One of the reason I found was why it doesn't find a jar from repository might be because the .pom file for that particular jar might be missing or corrupt. Just correct it and try to load from local repository.

I've mostly just seen the builtin ValueError used in this situation.

Perform the move directly in the repository.

The key is "argument-less git-pull". When you do a git pull from a branch, without specifying a source remote or branch, git looks at the branch.<name>.merge setting to know where to pull from. git push -u sets this information for the branch you're pushing.

To see the difference, let's use a new empty branch:

$ git checkout -b test

First, we push without -u:

$ git push origin test
$ git pull
You asked me to pull without telling me which branch you
want to merge with, and 'branch.test.merge' in
your configuration file does not tell me, either. Please
specify which branch you want to use on the command line and
try again (e.g. 'git pull <repository> <refspec>').
See git-pull(1) for details.

If you often merge with the same branch, you may want to
use something like the following in your configuration file:

    [branch "test"]
    remote = <nickname>
    merge = <remote-ref>

    [remote "<nickname>"]
    url = <url>
    fetch = <refspec>

See git-config(1) for details.

Now if we add -u:

$ git push -u origin test
Branch test set up to track remote branch test from origin.
Everything up-to-date
$ git pull
Already up-to-date.

Note that tracking information has been set up so that git pull works as expected without specifying the remote or branch.

Update: Bonus tips:

• As Mark mentions in a comment, in addition to git pull this setting also affects default behavior of git push. If you get in the habit of using -u to capture the remote branch you intend to track, I recommend setting your push.default config value to upstream.
• git push -u <remote> HEAD will push the current branch to a branch of the same name on <remote> (and also set up tracking so you can do git push after that).

I was just searching for something similar:

I want to sum every odd row column.

SUMIF has TWO possible ranges, the range to sum from, and a range to consider criteria in.

SUMIF(B1:B1000,1,A1:A1000)

This function will consider if a cell in the B range is "=1", it will sum the corresponding A cell only if it is.

To get "=1" to return in the B range I put this in B:

=MOD(ROWNUM(B1),2)

Then auto fill down to get the modulus to fill, you could put and calculatable criteria here to get the SUMIF or SUMIFS conditions you need to loop through each cell.

Easier than ARRAY stuff and hides the back-end of loops!

Use a double-negative:

/[^\S\r\n]/

That is, not-not-whitespace (the capital S complements) or not-carriage-return or not-newline. Distributing the outer not (i.e., the complementing ^ in the character class) with De Morgan's law, this is equivalent to “whitespace but not carriage return or newline.” Including both \r and \n in the pattern correctly handles all of Unix (LF), classic Mac OS (CR), and DOS-ish (CR LF) newline conventions.

No need to take my word for it:

#! /usr/bin/env perl

use strict;
use warnings;

use 5.005;  # for qr//

my $ws_not_crlf = qr/[^\S\r\n]/;

for (' ', '\f', '\t', '\r', '\n') {
  my $qq = qq["$_"];
  printf "%-4s => %s\n", $qq,
    (eval $qq) =~ $ws_not_crlf ? "match" : "no match";
}

Output:

" "  => match
"\f" => match
"\t" => match
"\r" => no match
"\n" => no match

Note the exclusion of vertical tab, but this is addressed in v5.18.

Before objecting too harshly, the Perl documentation uses the same technique. A footnote in the “Whitespace” section of perlrecharclass reads

Prior to Perl v5.18, \s did not match the vertical tab. [^\S\cK] (obscurely) matches what \s traditionally did.

The same section of perlrecharclass also suggests other approaches that won’t offend language teachers’ opposition to double-negatives.

Outside locale and Unicode rules or when the /a switch is in effect, “\s matches [\t\n\f\r ] and, starting in Perl v5.18, the vertical tab, \cK.” Discard \r and \n to leave /[\t\f\cK ]/ for matching whitespace but not newline.

If your text is Unicode, use code similar to the sub below to construct a pattern from the table in the aforementioned documentation section.

sub ws_not_nl {
  local($_) = <<'EOTable';
0x0009        CHARACTER TABULATION   h s
0x000a              LINE FEED (LF)    vs
0x000b             LINE TABULATION    vs  [1]
0x000c              FORM FEED (FF)    vs
0x000d        CARRIAGE RETURN (CR)    vs
0x0020                       SPACE   h s
0x0085             NEXT LINE (NEL)    vs  [2]
0x00a0              NO-BREAK SPACE   h s  [2]
0x1680            OGHAM SPACE MARK   h s
0x2000                     EN QUAD   h s
0x2001                     EM QUAD   h s
0x2002                    EN SPACE   h s
0x2003                    EM SPACE   h s
0x2004          THREE-PER-EM SPACE   h s
0x2005           FOUR-PER-EM SPACE   h s
0x2006            SIX-PER-EM SPACE   h s
0x2007                FIGURE SPACE   h s
0x2008           PUNCTUATION SPACE   h s
0x2009                  THIN SPACE   h s
0x200a                  HAIR SPACE   h s
0x2028              LINE SEPARATOR    vs
0x2029         PARAGRAPH SEPARATOR    vs
0x202f       NARROW NO-BREAK SPACE   h s
0x205f   MEDIUM MATHEMATICAL SPACE   h s
0x3000           IDEOGRAPHIC SPACE   h s
EOTable

  my $class;
  while (/^0x([0-9a-f]{4})\s+([A-Z\s]+)/mg) {
    my($hex,$name) = ($1,$2);
    next if $name =~ /\b(?:CR|NL|NEL|SEPARATOR)\b/;
    $class .= "\\N{U+$hex}";
  }

  qr/[$class]/u;
}

Other Applications

The double-negative trick is also handy for matching alphabetic characters too. Remember that \w matches “word characters,” alphabetic characters and digits and underscore. We ugly-Americans sometimes want to write it as, say,

if (/[A-Za-z]+/) { ... }

but a double-negative character-class can respect the locale:

if (/[^\W\d_]+/) { ... }

Expressing “a word character but not digit or underscore” this way is a bit opaque. A POSIX character-class communicates the intent more directly

if (/[[:alpha:]]+/) { ... }

or with a Unicode property as szbalint suggested

if (/\p{Letter}+/) { ... }

Maybe you want to search for some text in all columns of the Pandas dataframe, and not just in the subset of them. In this case, the following code will help.

df[df.apply(lambda row: row.astype(str).str.contains('String To Find').any(), axis=1)]

Warning. This method is relatively slow, albeit convenient.

I just open zshrc with sublime, and edit it.

subl .zshrc

And add this on sublime:

alias blah="/usr/bin/blah"

Run this in terminal:

source ~/.bashrc

Done.

You can filter using index of array.

var months = ['Jan', 'March', 'April', 'June'];_x000D_
months = months.filter((month,idx) => idx < 2)_x000D_
console.log(months);

As of Angular Material v9, it now has a clipboard CDK

Clipboard | Angular Material

It can be used as simply as

<button [cdkCopyToClipboard]="This goes to Clipboard">Copy this</button>

Assuming the list has a even number of elements, you could do:

test = [1,23,4,6,7,8]
test_rest = reversed(test[:len(test)/2])

for n in len(test_rest):
    print [test[n], test_test[n]]

In the case of nested tables, some DBMS require to use an alias like MySQL and Oracle but others do not have such a strict requirement, but still allow to add them to substitute the result of the inner query.

I recommend that you use REQUERY the specific combo box whose data you have changed AND that you do it after the Cmd.Close statement. that way, if you were inputing data, that data is also requeried.

DoCmd.Close
Forms![Form_Name]![Combo_Box_Name].Requery

you might also want to point to the recently changed value

Dim id As Integer
id = Me.[Index_Field]
DoCmd.Close
Forms![Form_Name]![Combo_Box_Name].Requery
Forms![Form_Name]![Combo_Box_Name] = id

this example supposes that you opened a form to input data into a secondary table.

let us say you save School_Index and School_Name in a School table and refer to it in a Student table (which contains only the School_Index field). while you are editing a student, you need to associate him with a school that is not in your School table, etc etc

Firefox doesn't seem to support the clear search field functionality... I found this pure CSS solution that works nicely: Textbox with a clear button completely in CSS | Codepen | 2013. The magic happens at

.search-box:not(:valid) ~ .close-icon {
    display: none;
}

body {
    background-color: #f1f1f1;
    font-family: Helvetica,Arial,Verdana;

}
h2 {
    color: green;
    text-align: center;
}
.redfamily {
    color: red; 
}
.search-box,.close-icon,.search-wrapper {
    position: relative;
    padding: 10px;
}
.search-wrapper {
    width: 500px;
    margin: auto;
}
.search-box {
    width: 80%;
    border: 1px solid #ccc;
  outline: 0;
  border-radius: 15px;
}
.search-box:focus {
    box-shadow: 0 0 15px 5px #b0e0ee;
    border: 2px solid #bebede;
}
.close-icon {
    border:1px solid transparent;
    background-color: transparent;
    display: inline-block;
    vertical-align: middle;
  outline: 0;
  cursor: pointer;
}
.close-icon:after {
    content: "X";
    display: block;
    width: 15px;
    height: 15px;
    position: absolute;
    background-color: #FA9595;
    z-index:1;
    right: 35px;
    top: 0;
    bottom: 0;
    margin: auto;
    padding: 2px;
    border-radius: 50%;
    text-align: center;
    color: white;
    font-weight: normal;
    font-size: 12px;
    box-shadow: 0 0 2px #E50F0F;
    cursor: pointer;
}
.search-box:not(:valid) ~ .close-icon {
    display: none;
}

<h2>
    Textbox with a clear button completely in CSS <br> <span class="redfamily">< 0 lines of JavaScript ></span>
</h2>
<div class="search-wrapper">
    <form>
    <input type="text" name="focus" required class="search-box" placeholder="Enter search term" />
        <button class="close-icon" type="reset"></button>
    </form>
</div>

I needed more functionality and added this jQuery in my code:

$('.close-icon').click(function(){ /* my code */ });

• To remove white spaces:

1) To remove white space everywhere:

df.columns = df.columns.str.replace(' ', '')

2) To remove white space at the beginning of string:

df.columns = df.columns.str.lstrip()

3) To remove white space at the end of string:

df.columns = df.columns.str.rstrip()

4) To remove white space at both ends:

df.columns = df.columns.str.strip()

• To replace white spaces with other characters (underscore for instance):

5) To replace white space everywhere

df.columns = df.columns.str.replace(' ', '_')

6) To replace white space at the beginning:

df.columns = df.columns.str.replace('^ +', '_')

7) To replace white space at the end:

df.columns = df.columns.str.replace(' +$', '_')

8) To replace white space at both ends:

df.columns = df.columns.str.replace('^ +| +$', '_')

All above applies to a specific column as well, assume you have a column named col, then just do:

df[col] = df[col].str.strip()  # or .replace as above

Another mysteriously unknown RDBMS. Your Syntax is perfectly fine in PostgreSQL. Other query styles may perform faster (especially the NOT EXISTS variant or a LEFT JOIN), but your query is perfectly legit.

Be aware of pitfalls with NOT IN, though, when involving any NULL values:

• Find records where join doesn't exist

Variant with LEFT JOIN:

SELECT *
FROM   friend f
LEFT   JOIN likes l USING (id1, id2)
WHERE  l.id1 IS NULL;

See @Michal's answer for the NOT EXISTS variant.
A more detailed assessment of four basic variants:

• Select rows which are not present in other table

Uninstall the app, and re-install and it should work!

They aren't the same though, are they? One is a copy, the other is a swap. Hence the function names.

My favourite is:

a = b;

Where a and b are vectors.

If you're live watching if unloading class worked in JConsole or something, try also adding java.lang.System.gc() at the end of your class unloading logic. It explicitly triggers Garbage Collector.

Use data type 'MultilineText':

[DataType(DataType.MultilineText)]
public string Text { get; set; }

See ASP.NET MVC3 - textarea with @Html.EditorFor

Turn on debug logging to get a better picture of what is going on.

You can tell if the session cookies are being set by using a browser-side debugger to look at the headers returned in HTTP responses. (There are other ways too.)

One possibility is that SpringSecurity is setting secure session cookies, and your next page requested has an "http" URL instead of an "https" URL. (The browser won't send a secure cookie for an "http" URL.)

Swift 4: A simple loader for small images (ex: thumbnails) that uses NSCache and always runs on the main thread:

class ImageLoader {

  private static let cache = NSCache<NSString, NSData>()

  class func image(for url: URL, completionHandler: @escaping(_ image: UIImage?) -> ()) {

    DispatchQueue.global(qos: DispatchQoS.QoSClass.background).async {

      if let data = self.cache.object(forKey: url.absoluteString as NSString) {
        DispatchQueue.main.async { completionHandler(UIImage(data: data as Data)) }
        return
      }

      guard let data = NSData(contentsOf: url) else {
        DispatchQueue.main.async { completionHandler(nil) }
        return
      }

      self.cache.setObject(data, forKey: url.absoluteString as NSString)
      DispatchQueue.main.async { completionHandler(UIImage(data: data as Data)) }
    }
  }

}

Usage:

ImageLoader.image(for: imageURL) { image in
  self.imageView.image = image
}

Just to build upon solving the namespace issues, in my case I've been running into documents with multiple namespaces and needed to handle namespaces properly. I wrote the function below to get a namespace manager to deal with any namespace in the document:

private XmlNamespaceManager GetNameSpaceManager(XmlDocument xDoc)
    {
        XmlNamespaceManager nsm = new XmlNamespaceManager(xDoc.NameTable);
        XPathNavigator RootNode = xDoc.CreateNavigator();
        RootNode.MoveToFollowing(XPathNodeType.Element);
        IDictionary<string, string> NameSpaces = RootNode.GetNamespacesInScope(XmlNamespaceScope.All);

        foreach (KeyValuePair<string, string> kvp in NameSpaces)
        {
            nsm.AddNamespace(kvp.Key, kvp.Value);
        }

        return nsm;
    }

This is what I got to work for me.

s.Replace("\r","").Replace("\n","")

For modern browsers, use td:nth-child(2) for the second td, and td:nth-child(3) for the third. Remember that these retrieve the second and third td for every row.

If you need compatibility with IE older than version 9, use sibling combinators or JavaScript as suggested by Tim. Also see my answer to this related question for an explanation and illustration of his method.

You can use

$window.scrollTo(x, y);

where x is the pixel along the horizontal axis and y is the pixel along the vertical axis.

1. Scroll to top

   $window.scrollTo(0, 0);
   

2. Focus on element

   $window.scrollTo(0, angular.element('put here your element').offsetTop);   
   

Example

Update:

Also you can use $anchorScroll

Example

Was missing the use of calc in the answers, which is a cleaner solution.

#logo {
  position: absolute;
  left: calc(50% - 25px);
  height: 50px;
  width: 50px;
  background: red;
}

Works in most modern browsers: http://caniuse.com/calc

Maybe it's too soon to use it without a fallback, but I thought maybe for future visitors it would be helpful.

This might be a little more clear:

double width = MediaQuery.of(context).size.width;

double yourWidth = width * 0.65;

Hope this solved your problem.

$('.block').scrollTop($('.block')[0].scrollHeight);

I use this code to scroll the chat when new messages arrive.

I'm not sure but:

• If you call the delete method with a non transient object, this means first fetched the object from the DB. So it is normal to see a select statement. Perhaps in the end you see 2 select + 1 delete?

• If you call the delete method with a transient object, then it is possible that you have a cascade="delete" or something similar which requires to retrieve first the object so that "nested actions" can be performed if it is required.

Edit: Calling delete() with a transient instance means doing something like that:

MyEntity entity = new MyEntity();
entity.setId(1234);
session.delete(entity);

This will delete the row with id 1234, even if the object is a simple pojo not retrieved by Hibernate, not present in its session cache, not managed at all by Hibernate.

If you have an entity association Hibernate probably have to fetch the full entity so that it knows if the delete should be cascaded to associated entities.

Regarding the freezing issue, we found this occurred when processing CSV files with at least one extremely long line.

To reproduce:

[print(x) for x in (['A' * 54790] + (['a' * 1421] * 10))]

However, it appears to have been fixed in PyCharm 4.5.4, so if you experience this, try updating your PyCharm.

PHP is likely the easiest.

Just make a file script.php that contains <?php shell_exec("yourscript.sh"); ?> and send anybody who clicks the button to that destination. You can return the user to the original page with header:

<?php
shell_exec("yourscript.sh");
header('Location: http://www.website.com/page?success=true');
?>

Reference: http://php.net/manual/en/function.shell-exec.php

CREATE DATABASE hindi_test
CHARACTER SET utf8
COLLATE utf8_unicode_ci;
USE hindi_test;
CREATE TABLE `hindi` (`data` varchar(200) COLLATE utf8_unicode_ci NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `hindi` (`data`) VALUES('????????');

It's 'bad practice' to use them without understanding their drawbacks. Adzm's post sums them up very well.

On the flipside, gmail makes heavy use of iFrames in the background for some of it's cooler features (like the automatic file upload). If you're aware of the limitations of iFrames I don't believe you should feel any compunction about using them.

you have parse that Json string using JSON.parse()

..
}).done(function(data){
    obj = JSON.parse(data);
    alert(obj.jobtitel);
});

Set the anchor property of the control to hook to all sides of the parent - top, bottom, left, and right.

From here Routing in Asp.net Mvc 4 and Web Api

Darin Dimitrov has posted a very good answer which is working for me.

It says...

You could have a couple of routes:

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Routes.MapHttpRoute(
            name: "ApiById",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional },
            constraints: new { id = @"^[0-9]+$" }
        );

        config.Routes.MapHttpRoute(
            name: "ApiByName",
            routeTemplate: "api/{controller}/{action}/{name}",
            defaults: null,
            constraints: new { name = @"^[a-z]+$" }
        );

        config.Routes.MapHttpRoute(
            name: "ApiByAction",
            routeTemplate: "api/{controller}/{action}",
            defaults: new { action = "Get" }
        );
    }
}

For the select tag, angular provides the ng-options directive. It gives you the specific framework to set up options and set a default. Here is the updated fiddle using ng-options that works as expected: http://jsfiddle.net/FxM3B/4/

Updated HTML (code stays the same)

<body ng-app ng-controller="AppCtrl">
<div>Operator is: {{filterCondition.operator}}</div>
<select ng-model="filterCondition.operator" ng-options="operator.value as operator.displayName for operator in operators">
</select>
</body>

In your view are you using the csrf decorator??

from django.views.decorators.csrf import csrf_protect

@csrf_protect def view(request, params): ....

Java strings are simply an array of char. So, char c = s[0] where s is string.

PHP does have authentication on the mail-command!

The following is working for me on WAMPSERVER (windows, php 5.2.17)

php.ini

[mail function]
; For Win32 only.
SMTP = mail.yourserver.com
smtp_port = 25
auth_username = smtp-username
auth_password = smtp-password
sendmail_from = [email protected]

argc is the number of arguments being passed into your program from the command line and argv is the array of arguments.

You can loop through the arguments knowing the number of them like:

for(int i = 0; i < argc; i++)
{
    // argv[i] is the argument at index i
}

Each thread in a Java application has its own stack. The stack is used to hold return addresses, function/method call arguments, etc. So if a thread tends to process large structures via recursive algorithms, it may need a large stack for all those return addresses and such. With the Sun JVM, you can set that size via that parameter.

Here's an example

public static void main(String[] args) {
    System.out.println(add5(1));
}

public static int add5(int a) {
    return add5(a) + 5;
}

A StackOverflowError basically is when you try to do something, that most likely calls itself, and goes on for infinity (or until it gives a StackOverflowError).

add5(a) will call itself, and then call itself again, and so on.

For Python Run This Command

apt-get install -y python-setuptools

For Python 3.

apt-get install -y python3-setuptools

Here's an excellent article by Scott Allen: Developing Gadgets for the Windows Sidebar

This site, Windows 7/Vista Sidebar Gadgets, has links to many gadget resources.

or with sed:

   test -z $(echo "2000" | sed s/[0-9]//g) && echo "integer" || echo "no integer"
   # integer

   test -z $(echo "ab12" | sed s/[0-9]//g) && echo "integer" || echo "no integer"
   # no integer

Old post but worth a look for someone who stumbles upon like me

ISNULL(NULLIF(ColumnName, ' '), NULL) IS NOT NULL

ISNULL(NULLIF(ColumnName, ' '), NULL) IS NULL

There are two reasons you might get this message:

1. ASP.Net is not configured. For this run from Administrator command %FrameworkDir%\%FrameworkVersion%\aspnet_regiis -i. Read the message carefully. On Windows8/IIS8 it may say that this is no longer supported and you may have to use Turn Windows Features On/Off dialog in Install/Uninstall a Program in Control Panel.
2. Another reason this may happen is because your App Pool is not configured correctly. For example, you created website for WordPress and you also want to throw in few aspx files in there, WordPress creates app pool that says don't run CLR stuff. To fix this just open up App Pool and enable CLR.

Update May 2014

Google crawlers now executes javascript - you can use the Google Webmaster Tools to better understand how your sites are rendered by Google.

Original answer
If you want to optimize your app for search engines there is unfortunately no way around serving a pre-rendered version to the crawler. You can read more about Google's recommendations for ajax and javascript-heavy sites here.

If this is an option I'd recommend reading this article about how to do SEO for Angular with server-side rendering.

I’m not sure what the crawler does when it encounters custom tags.

  $filelist | % {
    $file = $_
    mkdir -force (Split-Path $dest) | Out-Null
    cp $file $dest
  } 

You use the ajaxStop to execute code when the ajax are completed:

$(document).ajaxStop(function(){
  setTimeout("window.location = 'otherpage.html'",100);
});

Here is the answer:

curl -X POST -d @file server:port -w %{time_connect}:%{time_starttransfer}:%{time_total}

All of the variables used with -w can be found in man curl.

[Using Rails 5]

Generate migration:

rails generate migration add_user_reference_to_uploads user:references

This will create the migration file:

class AddUserReferenceToUploads < ActiveRecord::Migration[5.1]
  def change
    add_reference :uploads, :user, foreign_key: true
  end
end

Now if you observe the schema file, you will see that the uploads table contains a new field. Something like: t.bigint "user_id" or t.integer "user_id".

Migrate database:

rails db:migrate

By current official documentation there is a short cut that stops and removes containers, networks, volumes, and images created by up, if they are already stopped or partially removed and so on, then it will do the trick too:

docker-compose down

Then if you have new changes on your images or Dockerfiles use:

docker-compose build --no-cache

Finally:docker-compose up

In one command: docker-compose down && docker-compose build --no-cache && docker-compose up

iOS 13 Solution(s)

UINavigationController is a subclass of UIViewController (who knew )!

Therefore, when presenting view controllers embedded in navigation controllers, you're not really presenting the embedded view controllers; you're presenting the navigation controllers! UINavigationController, as a subclass of UIViewController, inherits preferredStatusBarStyle and childForStatusBarStyle, which you can set as desired.

Any of the following methods should work:

1. Opt out of Dark Mode entirely
   • In your info.plist, add the following property:
     • Key - UIUserInterfaceStyle (aka. "User Interface Style")
     • Value - Light

2. Override preferredStatusBarStyle within UINavigationController

   • preferredStatusBarStyle (doc) - The preferred status bar style for the view controller

   • Subclass or extend UINavigationController

     class MyNavigationController: UINavigationController {
         override var preferredStatusBarStyle: UIStatusBarStyle {
             .lightContent
         }
     }
     

     OR

     extension UINavigationController {
         open override var preferredStatusBarStyle: UIStatusBarStyle {
             .lightContent
         }
     }
     

3. Override childForStatusBarStyle within UINavigationController

   • childForStatusBarStyle (doc) - Called when the system needs the view controller to use for determining status bar style
   • According to Apple's documentation,

     "If your container view controller derives its status bar style from one of its child view controllers, [override this property] and return that child view controller. If you return nil or do not override this method, the status bar style for self is used. If the return value from this method changes, call the setNeedsStatusBarAppearanceUpdate() method."

   • In other words, if you don't implement solution 3 here, the system will fall back to solution 2 above.

   • Subclass or extend UINavigationController

     class MyNavigationController: UINavigationController {
         override var childForStatusBarStyle: UIViewController? {
             topViewController
         }
     }
     

     OR

     extension UINavigationController {    
         open override var childForStatusBarStyle: UIViewController? {
             topViewController
         }
     }
     

   • You can return any view controller you'd like above. I recommend one of the following:

     • topViewController (of UINavigationController) (doc) - The view controller at the top of the navigation stack
     • visibleViewController (of UINavigationController) (doc) - The view controller associated with the currently visible view in the navigation interface (hint: this can include "a view controller that was presented modally on top of the navigation controller itself")

Note: If you decide to subclass UINavigationController, remember to apply that class to your nav controllers through the identity inspector in IB.

P.S. My code uses Swift 5.1 syntax

In summary you cannot do it, but I disagree with all of the comment above, there "are" scenarios where you can legitimately use a * When you create a nested query in order to select a specific range out of a whole list (such as paging) why in the world would want to specify each column on the outer select statement when you have done it in the inner?

This answer is wrriten in Kotlin, but can easily be translated to Java.

If your arraylist's size is within a fixed small range, then this is a great solution.

var duplicateDetected = false
    if(arrList.size > 1){
        for(i in 0 until arrList.size){
            for(j in 0 until arrList.size){
                if(i != j && arrList.get(i) == arrList.get(j)){
                    duplicateDetected = true
                }
            }
        }
    }

Swift 3 Solution, using ordered array of UITextField's

func nextTextField() {
    let textFields = // Your textfields array

    for i in 0 ..< textFields.count{
        if let textfield = textFields[i], textfield.isFirstResponder{
            textfield.resignFirstResponder()
            if i+1 < textFields.count, let nextextfield = textFields[i+1]{
                nextextfield.becomeFirstResponder()
                return
            }
        }
    }
}

On MAC you can do sout + return or ?+j (cmd+j) opens live template suggestions, enter sout to choose System.out.println();

Using pytz

from datetime import datetime
from pytz import timezone

fmt = "%Y-%m-%d %H:%M:%S %Z%z"
timezonelist = ['UTC','US/Pacific','Europe/Berlin']
for zone in timezonelist:

    now_time = datetime.now(timezone(zone))
    print now_time.strftime(fmt)

We use WinSCP. Its free. Its not a lib, but has a well documented and full featured command line interface that you can use with Process.Start.

Update: with v.5.0, WinSCP has a .NET wrapper library to the scripting layer of WinSCP.

Assuming you have access to STL:

std::string filename("filename.conf");
std::string::size_type idx;

idx = filename.rfind('.');

if(idx != std::string::npos)
{
    std::string extension = filename.substr(idx+1);
}
else
{
    // No extension found
}

Edit: This is a cross platform solution since you didn't mention the platform. If you're specifically on Windows, you'll want to leverage the Windows specific functions mentioned by others in the thread.

What happens if you get rid of the stringwriter:

        Response.Clear();
        Response.AddHeader("Content-Disposition", "attachment; filename=adressenbestand.csv");
        Response.ContentType = "text/csv";
        //write the header
        Response.Write(String.Format("{0},{1},{2},{3}", CMSMessages.EmailAddress, CMSMessages.Gender, CMSMessages.FirstName, CMSMessages.LastName));

        //write every subscriber to the file
        var resourceManager = new ResourceManager(typeof(CMSMessages));
        foreach (var record in filterRecords.Select(x => x.First().Subscriber))
        {
            Response.Write(String.Format("{0},{1},{2},{3}", record.EmailAddress, record.Gender.HasValue ? resourceManager.GetString(record.Gender.ToString()) : "", record.FirstName, record.LastName));
        }

        Response.End();

I had same issue using different dependancy what helped me is to set scope to compile.

<dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.0.1</version>
        <scope>compile</scope>
    </dependency>

Old question but here's the code on how to do what you are asking. In this case I am passing data from a selected cell in a table view to another view controller.

in the .h file of the trget view:

@property(weak, nonatomic)  NSObject* dataModel;

in the .m file:

@synthesize dataModel;

dataModel can be string, int, or like in this case it's a model that contains many items

- (void)someMethod {
     [self performSegueWithIdentifier:@"loginMainSegue" sender:self];
 }

OR...

- (void)someMethod {
    UIViewController *myController = [self.storyboard instantiateViewControllerWithIdentifier:@"HomeController"];
    [self.navigationController pushViewController: myController animated:YES];
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if([segue.identifier isEqualToString:@"storyDetailsSegway"]) {
        UITableViewCell *cell = (UITableViewCell *) sender;
        NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
        NSDictionary *storiesDict =[topStories objectAtIndex:[indexPath row]];
        StoryModel *storyModel = [[StoryModel alloc] init];
        storyModel = storiesDict;
        StoryDetails *controller = (StoryDetails *)segue.destinationViewController;
        controller.dataModel= storyModel;
    }
}

If anyone wonders how to quickly query catalog tables and make use of the pg_get_functiondef() function here's the sample query:

SELECT n.nspname AS schema
      ,proname AS fname
      ,proargnames AS args
      ,t.typname AS return_type
      ,d.description
      ,pg_get_functiondef(p.oid) as definition
--      ,CASE WHEN NOT p.proisagg THEN pg_get_functiondef(p.oid)
--            ELSE 'pg_get_functiondef() can''t be used with aggregate functions'
--       END as definition
  FROM pg_proc p
  JOIN pg_type t
    ON p.prorettype = t.oid
  LEFT OUTER
  JOIN pg_description d
    ON p.oid = d.objoid
  LEFT OUTER
  JOIN pg_namespace n
    ON n.oid = p.pronamespace
 WHERE NOT p.proisagg
   AND n.nspname~'<$SCHEMA_NAME_PATTERN>'
   AND proname~'<$FUNCTION_NAME_PATTERN>'

This is surprisingly complex topic in Python.

Practical answer

Arrays are represented by class list (see reference and do not mix them with generators).

Check out usage examples:

# empty array
arr = [] 

# init with values (can contain mixed types)
arr = [1, "eels"]

# get item by index (can be negative to access end of array)
arr = [1, 2, 3, 4, 5, 6]
arr[0]  # 1
arr[-1] # 6

# get length
length = len(arr)

# supports append and insert
arr.append(8)
arr.insert(6, 7)

Theoretical answer

Under the hood Python's list is a wrapper for a real array which contains references to items. Also, underlying array is created with some extra space.

Consequences of this are:

• random access is really cheap (arr[6653] is same to arr[0])
• append operation is 'for free' while some extra space
• insert operation is expensive

Check this awesome table of operations complexity.

Also, please see this picture, where I've tried to show most important differences between array, array of references and linked list:

Is this a simple eclipse java project without maven etc? In that case you will need to put the log4j2.xml file under src folder in order to be able to find it on the classpath. If you use maven put it under src/main/resources or src/test/resources

Use the return keyword to exit from a method.

public void someMethod() {
    //... a bunch of code ...
    if (someCondition()) {
        return;
    }
    //... otherwise do the following...
}

Pls note: We may use break statements which are used to break/exit only from a loop, and not the entire program.

To exit from program: System.exit() Method:
System.exit has status code, which tells about the termination, such as:
exit(0) : Indicates successful termination.
exit(1) or exit(-1) or any non-zero value – indicates unsuccessful termination.

When one wants elements to be added with zero-based element indexing, I guess this will work as well:

// adding elements to an array with zero-based index
$matrix= array();
$matrix[count($matrix)]= 'element 1';
$matrix[count($matrix)]= 'element 2';
...
$matrix[count($matrix)]= 'element N';

//ul[@class="featureList" and li//text()[contains(., "Model")]]

It is possible to solve the problem by updating the 'Newtonsoft' version.

In Visual Studio 2015 it is possible to right click on the "Solution" and select "Manage Nuget packages for solution", search for "Newtonsoft" select a more current version and click update.

All the above commands create a new branch and with the latest commit being the one specified in the command, but just in case you want your current branch HEAD to move to the specified commit, below is the command:

 git checkout <commit_hash>

It detaches and point the HEAD to specified commit and saves from creating a new branch when the user just wants to view the branch state till that particular commit.

You then might want to go back to the latest commit & fix the detached HEAD:

Fix a Git detached head?

FPM is a process manager to manage the FastCGI SAPI (Server API) in PHP.

Basically, it replaces the need for something like SpawnFCGI. It spawns the FastCGI children adaptively (meaning launching more if the current load requires it).

Otherwise, there's not much operating difference between it and FastCGI (The request pipeline from start of request to end is the same). It's just there to make implementing it easier.

I found a more straight forward solution from @DK comment in this question, the solution is written by Alex and described here with source, To make customized window:

1. download the sample project here
2. edit the generic.xaml file to customize the layout.
3. enjoy :).

I think this solution is easier and better, use directly the function findstr:

alias | findstr -i Write

You can also make an alias to use grep word:

new-alias grep findstr

Updated answer (Jan 2020)

xargs is now the recommended tool to achieve parallel execution. It's pre-installed almost everywhere. For running multiple rsync tasks the command would be:

ls /srv/mail | xargs -n1 -P4 -I% rsync -Pa % myserver.com:/srv/mail/

This will list all folders in /srv/mail, pipe them to xargs, which will read them one-by-one and and run 4 rsync processes at a time. The % char replaces the input argument for each command call.

Original answer using parallel:

ls /srv/mail | parallel -v -j8 rsync -raz --progress {} myserver.com:/srv/mail/{}

In less technical terms

My answer is not different but I am adding more information because those that are new could benefit from filling in the gaps in information.

After you create the repo on github they have instructions. You can follow those. But here are some additional tips because I know how frustrating it is to get started with git.

Let's say that you have already started your project locally. How much you have does not matter. But let's pretend that you have a php project. Let's say that you have the index.php, contact.php and an assets folder with images, css, and fonts. You can do it this way (easy), but there are many options:

Option 1

Login to your github account and create the repo.

In the following screen you can copy it down where you need it if you click the button (right side of screen) to "clone in desktop".

You can (or do it another way) then copy the contents from your existing project into your new repo. Using the github app, you can just commit from there using their GUI (that means that you just click the buttons in the application). Of course you enter your notes for the commit.

Option 2

• Create your repo on github as mentioned above.
• On your computer, go to your directory using the terminal. using the linux command line you would cd into the directory. From here you run the following commands to "connect" your existing project to your repo on github. (This is assuming that you created your repo on github and it is currently empty)

first do this to initialize git (version control).

git init

then do this to add all your files to be "monitored." If you have files that you want ignored, you need to add a .gitignore but for the sake of simplicity, just use this example to learn.

git add .

Then you commit and add a note in between the "" like "first commit" etc.

 git commit -m "Initial Commit"

Now, here is where you add your existing repo

git remote add github <project url>

But do not literally type <project url>, but your own project URL. How do you get that? Go to the link where your repo is on github, then copy the link. In my case, one of my repos is https://github.com/JGallardo/urbanhistorical so my resulting url for this command would just add .git after that. So here it would be

git remote add github https://github.com/JGallardo/urbanhistorical.git

Test to see that it worked by doing

git remote -v

You should see what your repo is linked to.

Then you can push your changes to github

git push github master

or

git push origin master

If you still get an error, you can force it with -f. But if you are working in a team environment, be careful not to force or you could create more problems.

git push -f origin master

I implemented it in the following way. I wanted a generic MakeRequest method that could call my API and receive content for the body of the request - and also deserialise the response into the desired type. I create a Dictionary<string, string> object to house the content to be submitted, and then set the HttpRequestMessage Content property with it:

Generic method to call the API:

    private static T MakeRequest<T>(string httpMethod, string route, Dictionary<string, string> postParams = null)
    {
        using (var client = new HttpClient())
        {
            HttpRequestMessage requestMessage = new HttpRequestMessage(new HttpMethod(httpMethod), $"{_apiBaseUri}/{route}");

            if (postParams != null)
                requestMessage.Content = new FormUrlEncodedContent(postParams);   // This is where your content gets added to the request body


            HttpResponseMessage response = client.SendAsync(requestMessage).Result;

            string apiResponse = response.Content.ReadAsStringAsync().Result;
            try
            {
                // Attempt to deserialise the reponse to the desired type, otherwise throw an expetion with the response from the api.
                if (apiResponse != "")
                    return JsonConvert.DeserializeObject<T>(apiResponse);
                else
                    throw new Exception();
            }
            catch (Exception ex)
            {
                throw new Exception($"An error ocurred while calling the API. It responded with the following message: {response.StatusCode} {response.ReasonPhrase}");
            }
        }
    }

Call the method:

    public static CardInformation ValidateCard(string cardNumber, string country = "CAN")
    { 
        // Here you create your parameters to be added to the request content
        var postParams = new Dictionary<string, string> { { "cardNumber", cardNumber }, { "country", country } };
        // make a POST request to the "cards" endpoint and pass in the parameters
        return MakeRequest<CardInformation>("POST", "cards", postParams);
    }

In terms of performance you should initialize the vector with use of reserve() combined with push_back() functions like in the example below:

const int numberOfElements = 10;

std::vector<int> data;
data.reserve(numberOfElements);

for(int i = 0; i < numberOfElements; i++)
    data.push_back(i);

All the std::fill, std::generate, etc. are operating on range of existing vector content, and, therefore the vector must be filled with some data earlier. Even doing the following: std::vector<int> data(10); creates a vector with all elements set to its default value (i.e. 0 in case of int).

The above code avoids to initialize vector content before filling it with the data you really want. Performance of this solution is well visible on large data sets.

You can take all values like this:

$abc = "<script>document.getElementByID('yourid').value</script>";

There's an option in the Simulator to open the console

Debug > Open System Log

or use the

keyboard shortcut: ?/

Works and is simpler than every other solution I see here :

Pump().getPumps()

This is great if you don't need to reuse a class instance. Tested on Python 3.7.3.

if you use jquery on you website, you can use something like this your console

$.post(_x000D_
    'dom/data-home.php',_x000D_
    {_x000D_
    type : "home", id : "0"_x000D_
    },function(data){_x000D_
        console.log(data)_x000D_
    })

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>

I used the TO_PURE_NUMBER() function and it worked.

For everyone with Ionic: Updating to the latest @ionic/app-scripts version gave a better error message.

npm install @ionic/app-scripts@latest --save-dev

It was a wrong path for styleUrls in a component to a non-existing file. Strangely it gave no error in development.

Rarely, a hardened HTTP server is configured to give no server information or misleading server information. In those scenarios if the server has PHP enabled you can add:

<?php phpinfo(); ?>

in a file and browse to it and look for the

_SERVER["SERVER_SOFTWARE"]

entry. This is susceptible to the same hardening lack of information/misleading though I would imagine that it's not altered often, because this method first requires access to the machine to create the PHP file.

Chaining conditions creates long lines, which are discouraged by pep8. Using the .query method forces to use strings, which is powerful but unpythonic and not very dynamic.

Once each of the filters is in place, one approach is

import numpy as np
import functools
def conjunction(*conditions):
    return functools.reduce(np.logical_and, conditions)

c_1 = data.col1 == True
c_2 = data.col2 < 64
c_3 = data.col3 != 4

data_filtered = data[conjunction(c1,c2,c3)]

np.logical operates on and is fast, but does not take more than two arguments, which is handled by functools.reduce.

Note that this still has some redundancies: a) shortcutting does not happen on a global level b) Each of the individual conditions runs on the whole initial data. Still, I expect this to be efficient enough for many applications and it is very readable.

You can also make a disjunction (wherein only one of the conditions needs to be true) by using np.logical_or instead:

import numpy as np
import functools
def disjunction(*conditions):
    return functools.reduce(np.logical_or, conditions)

c_1 = data.col1 == True
c_2 = data.col2 < 64
c_3 = data.col3 != 4

data_filtered = data[disjunction(c1,c2,c3)]

I think that the fastest way to do this is to just clone the node, which will remove all event listeners:

var old_element = document.getElementById("btn");
var new_element = old_element.cloneNode(true);
old_element.parentNode.replaceChild(new_element, old_element);

Just be careful, as this will also clear event listeners on all child elements of the node in question, so if you want to preserve that you'll have to resort to explicitly removing listeners one at a time.

This worked for me!!!!

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>academy.learnprogramming</groupId>
    <artifactId>hello-maven</artifactId>
    <version>1.0-SNAPSHOT</version>
<dependencies>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
    </dependency>

</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
            <configuration>
                <target>10</target>
                <source>10</source>
                <release>10</release>
            </configuration>

        </plugin>
    </plugins>
</build>
</project>

There is a utility called : mongodump On the mongo command line you can type :

>./mongodump

The above will create a dump of all the databases on your localhost. To make dump of a single collection use:

./mongodump --db blog --collection posts

Have a look at : mongodump

Try this, it works!

<div class="row">
    <div class="center">
        <div class="col-xs-12 col-sm-4">
            <p>hi 1!</p>
        </div>
        <div class="col-xs-12 col-sm-4">
            <p>hi 2!</p>
        </div>
        <div class="col-xs-12 col-sm-4">
            <p>hi 3!</p>
        </div>
    </div>
</div>

Then, in css define the width of center div and center in a document:

.center {
    margin: 0 auto;
    width: 80%;
}

You can use ng-show on every div element in the loop. Is this what you've wanted: http://jsfiddle.net/pGwRu/2/ ?

<div class="from" ng-show="message.from">From: {{message.from.name}}</div>

I was having the same error message for a mistake I made: Make sure you use a correct s3 uri such as: s3://my-bucket-name/

(If my-bucket-name is at the root of your aws s3 obviously)

I insist on that because when copy pasting the s3 bucket from your browser you get something like https://s3.console.aws.amazon.com/s3/buckets/my-bucket-name/?region=my-aws-regiontab=overview

Thus I made the mistake to use s3://buckets/my-bucket-name which raises:

An error occurred (AccessDenied) when calling the PutObject operation: Access Denied

Using Java 8

MessageDigest digest = null;
try {
    digest = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
    e.printStackTrace();
}
byte[] hash = digest.digest(text.getBytes(StandardCharsets.UTF_8));
String encoded = DatatypeConverter.printHexBinary(hash);        
System.out.println(encoded.toLowerCase());

You could always use aliases

alias your_env='source ~/scripts/your_env.sh'

can also use:

$("input.DateFrom").datepicker({
    minDate: 'today'
});

If you need to use with the min-height property you must add this CSS on:

.outerContainer .innerContainer {
    height: 0;
    min-height: 100px;
}

My Android Studio is 3.0, please follow the two steps below,hope this will help;)

You can also not specify the type parameter which seems a bit cleaner and what Spring intended when looking at the docs:

@RequestMapping(method = RequestMethod.HEAD, value = Constants.KEY )
public ResponseEntity taxonomyPackageExists( @PathVariable final String key ){
    // ...
    return new ResponseEntity(HttpStatus.NO_CONTENT);
}

This should do the trick:

image = open("image.png", "wb")
image.write(base64string.decode('base64'))
image.close()

Nice solution! Included in my library of auxiliary functions, now it looks like this:

Object.isDate = function(obj) {
/// <summary>
/// Determines if the passed object is an instance of Date.
/// </summary>
/// <param name="obj">The object to test.</param>

    return Object.prototype.toString.call(obj) === '[object Date]';
}

Object.isValidDate = function(obj) {
/// <summary>
/// Determines if the passed object is a Date object, containing an actual date.
/// </summary>
/// <param name="obj">The object to test.</param>

    return Object.isDate(obj) && !isNaN(obj.getTime());
}

really love @Ramnath solution. To allow use to customize the regression formula (instead of fixed as y and x as literal variable names), and added the p-value into the printout as well (as @Jerry T commented), here is the mod:

lm_eqn <- function(df, y, x){
    formula = as.formula(sprintf('%s ~ %s', y, x))
    m <- lm(formula, data=df);
    # formating the values into a summary string to print out
    # ~ give some space, but equal size and comma need to be quoted
    eq <- substitute(italic(target) == a + b %.% italic(input)*","~~italic(r)^2~"="~r2*","~~p~"="~italic(pvalue), 
         list(target = y,
              input = x,
              a = format(as.vector(coef(m)[1]), digits = 2), 
              b = format(as.vector(coef(m)[2]), digits = 2), 
             r2 = format(summary(m)$r.squared, digits = 3),
             # getting the pvalue is painful
             pvalue = format(summary(m)$coefficients[2,'Pr(>|t|)'], digits=1)
            )
          )
    as.character(as.expression(eq));                 
}

geom_point() +
  ggrepel::geom_text_repel(label=rownames(mtcars)) +
  geom_text(x=3,y=300,label=lm_eqn(mtcars, 'hp','wt'),color='red',parse=T) +
  geom_smooth(method='lm')

Unfortunately, this doesn't work with facet_wrap or facet_grid.

You can use it via LINQ

     var selectedEditionIds = input.SelectedEditionIds.Split(",").ToArray()
                            .Where(i => !string.IsNullOrWhiteSpace(i) 
                             && int.TryParse(i,out int validNumber))
                            .Select(x=>int.Parse(x)).ToList();

For me it was a wrong maven dependency deceleration, so here is the correct way:

for sqljdbc4 use: sqljdbc4 dependency

<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>sqljdbc4</artifactId>
    <version>4.0</version>
</dependency>

for sqljdbc42 use: sqljdbc42 dependency

<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>sqljdbc42</artifactId>
    <version>6.0.8112</version>
</dependency>

If I understand your question right you are asking what is difference if you register listener callback with $watch or if you do it with $observe.

Callback registerd with $watch is fired when $digest is executed.

Callback registered with $observe are called when value changes of attributes that contain interpolation (e.g. attr="{{notJetInterpolated}}").

Inside directive you can use both of them on very similar way:

    attrs.$observe('attrYouWatch', function() {
         // body
    });

or

    scope.$watch(attrs['attrYouWatch'], function() {
         // body
    });

In combination with what Guffa described, you could use the technique described in Explanation of <script type = "text/template"> ... </script> to store the HTML document in a special script element (see the link for an explanation on how this works). That's a lot easier than storing the HTML document in a string.

You could also check if the id element is used by doing so:

if(typeof $(.div).attr('id') == undefined){
   //element has no id
} else {
   //element has id selector
}

I use this method for global dataTables and specific ordered dataTables

You can try something like this:

public interface PersonRepository extends CrudRepository<Person, Long> {
       @Query("select p from Person AS p"
       + " ,Name AS n"  
       + " where p.forename = n.forename "
       + " and p.surname = n.surname"
       + " and n = :name")
       Set<Person>findByName(@Param("name") Name name);
    }

Consider you've created a procedure like below.

CREATE OR REPLACE PROCEDURE GET_FULL_NAME like
(
  FIRST_NAME IN VARCHAR2, 
  LAST_NAME IN VARCHAR2,
  FULL_NAME OUT VARCHAR2 
) IS 
BEGIN
  FULL_NAME:= FIRST_NAME || ' ' || LAST_NAME;
END GET_FULL_NAME;

In Oracle SQL Developer, you can run this procedure in two ways.

1. Using SQL Worksheet

Create a SQL Worksheet and write PL/SQL anonymous block like this and hit f5

DECLARE
  FULL_NAME Varchar2(50);
BEGIN
  GET_FULL_NAME('Foo', 'Bar', FULL_NAME);
  Dbms_Output.Put_Line('Full name is: ' || FULL_NAME);
END;

2. Using GUI Controls

• Expand Procedures

• Right click on the procudure you've created and Click Run

• In the pop-up window, Fill the parameters and Click OK.

Cheers!

there are three ways you can use: the RETURN value, and OUTPUT parameter and a result set

ALSO, watch out if you use the pattern: SELECT @Variable=column FROM table ...

if there are multiple rows returned from the query, your @Variable will only contain the value from the last row returned by the query.

RETURN VALUE
since your query returns an int field, at least based on how you named it. you can use this trick:

CREATE PROCEDURE GetMyInt
( @Param int)
AS
DECLARE @ReturnValue int

SELECT @ReturnValue=MyIntField FROM MyTable WHERE MyPrimaryKeyField = @Param
RETURN @ReturnValue
GO

and now call your procedure like:

DECLARE @SelectedValue int
       ,@Param         int
SET @Param=1
EXEC @SelectedValue = GetMyInt @Param
PRINT @SelectedValue

this will only work for INTs, because RETURN can only return a single int value and nulls are converted to a zero.

OUTPUT PARAMETER
you can use an output parameter:

CREATE PROCEDURE GetMyInt
( @Param     int
 ,@OutValue  int OUTPUT)
AS
SELECT @OutValue=MyIntField FROM MyTable WHERE MyPrimaryKeyField = @Param
RETURN 0
GO

and now call your procedure like:

DECLARE @SelectedValue int
       ,@Param         int
SET @Param=1
EXEC GetMyInt @Param, @SelectedValue OUTPUT
PRINT @SelectedValue 

Output parameters can only return one value, but can be any data type

RESULT SET for a result set make the procedure like:

CREATE PROCEDURE GetMyInt
( @Param     int)
AS
SELECT MyIntField FROM MyTable WHERE MyPrimaryKeyField = @Param
RETURN 0
GO

use it like:

DECLARE @ResultSet table (SelectedValue int)
DECLARE @Param int
SET @Param=1
INSERT INTO @ResultSet (SelectedValue)
    EXEC GetMyInt @Param
SELECT * FROM @ResultSet 

result sets can have many rows and many columns of any data type

I hope my script help you.

<i class="mostrar-producto">mostrar...</i>
<div class="producto" style="display:none;position: absolute;">Producto</div>

My script

<script>
$(".mostrar-producto").mouseover(function(){
     $(".producto").fadeIn();
 });

 $(".mostrar-producto").mouseleave(function(){
      $(".producto").fadeOut();
  });
</script>

There is comma missing in your tuple.

insert the comma between the tuples as shown:

pack_size = (('1', '1'),('3', '3'),(b, b),(h, h),(d, d), (e, e),(r, r))

Do the same for all

If you don't want to rely on a javascript library, you can use document.write() to spit out the required css, wrapped in style tags, straight into the document head:

<head>
  <script type="text/javascript">
    document.write("<style>body { background-color:#000 }</style>");
  </script>
  # other stuff..
</head>

This way you avoid firing an extra HTTP request.

There are other solutions that have been suggested / added / removed, but I don't see any point in overcomplicating something that already works fine cross-browser. Good luck!

http://jsbin.com/oqede3/edit

If using Tomcat 6 and earlier, make sure the keystore password and the key password are same. If using Tomcat 7 and later, make sure they are the same or that the key password is specified in the server.xml file.

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

Which works nicely. :)

I googled a bit, and found this code here:

File file = getJarFileToLoadFrom();   
String lcStr = getNameOfClassToLoad();   
URL jarfile = new URL("jar", "","file:" + file.getAbsolutePath()+"!/");    
URLClassLoader cl = URLClassLoader.newInstance(new URL[] {jarfile });   
Class loadedClass = cl.loadClass(lcStr);   

Can anyone share opinions/comments/answers regarding this approach?

The button isn't inside the input. Here:

input[type="text"] {
    width: 200px;
    height: 20px;
    padding-right: 50px;
}

input[type="submit"] {
    margin-left: -50px;
    height: 20px;
    width: 50px;
}

Example: http://jsfiddle.net/s5GVh/

A sample using C# is here.

public static void Main()
{
    Console.WriteLine("Hello World " + LevenshteinDistance("Hello","World"));
    Console.WriteLine("Choice A " + LevenshteinDistance("THE BROWN FOX JUMPED OVER THE RED COW","THE RED COW JUMPED OVER THE GREEN CHICKEN"));
    Console.WriteLine("Choice B " + LevenshteinDistance("THE BROWN FOX JUMPED OVER THE RED COW","THE RED COW JUMPED OVER THE RED COW"));
    Console.WriteLine("Choice C " + LevenshteinDistance("THE BROWN FOX JUMPED OVER THE RED COW","THE RED FOX JUMPED OVER THE BROWN COW"));
}

public static float LevenshteinDistance(string a, string b)
{
    var rowLen = a.Length;
    var colLen = b.Length;
    var maxLen = Math.Max(rowLen, colLen);

    // Step 1
    if (rowLen == 0 || colLen == 0)
    {
        return maxLen;
    }

    /// Create the two vectors
    var v0 = new int[rowLen + 1];
    var v1 = new int[rowLen + 1];

    /// Step 2
    /// Initialize the first vector
    for (var i = 1; i <= rowLen; i++)
    {
        v0[i] = i;
    }

    // Step 3
    /// For each column
    for (var j = 1; j <= colLen; j++)
    {
        /// Set the 0'th element to the column number
        v1[0] = j;

        // Step 4
        /// For each row
        for (var i = 1; i <= rowLen; i++)
        {
            // Step 5
            var cost = (a[i - 1] == b[j - 1]) ? 0 : 1;

            // Step 6
            /// Find minimum
            v1[i] = Math.Min(v0[i] + 1, Math.Min(v1[i - 1] + 1, v0[i - 1] + cost));
        }

        /// Swap the vectors
        var vTmp = v0;
        v0 = v1;
        v1 = vTmp;
    }

    // Step 7
    /// The vectors were swapped one last time at the end of the last loop,
    /// that is why the result is now in v0 rather than in v1
    return v0[rowLen];
}

The output is:

Hello World 4
Choice A 15
Choice B 6
Choice C 8

A boolean is not an integer; 1 and 0 are not boolean values in Java. You'll need to convert them explicitly:

boolean multipleContacts = (1 == jsonObject.getInt("MultipleContacts"));

or serialize the ints as booleans from the start.

Just say goodbye to minimal-ui (for now)

It's true, minimal-ui could be both useful and harmful, and I suppose the trade-off now has another balance, in favor of newer, bigger iPhones.

I've been dealing with the issue while working with my js framework for HTML5 apps. After many attempted solutions, each with their drawbacks, I surrendered to considering that space lost on iPhones previous than 6. Given the situation, I think that the only solid and predictable behavior is a pre-determined one.

In short, I ended up preventing any form of minimal-ui, so at least my screen height is always the same and you always know what actual space you have for your app.

With the help of time, enough users will have more room.

EDIT

How I do it

This is a little simplified, for demo purpose, but should work for you. Assuming you have a main container

html, body, #main {
  height: 100%;
  width: 100%;
  overflow: hidden;
}
.view {
  width: 100%;
  height: 100%;
  overflow: scroll;
}

Then:

1. then with js, I set #main's height to the window's available height. This also helps dealing with other scrolling bugs found in both iOS and Android. It also means that you need to deal on how to update it, just note that;

2. I block over-scrolling when reaching the boundaries of the scroll. This one is a bit more deep in my code, but I think you can as well follow the principle of this answer for basic functionality. I think it could flickr a little, but will do the job.

See the demo (on a iPhone)

As a sidenote: this app too is bookmarkable, as it uses an internal routing to hashed addresses, but I also added a prompt iOS users to add to home. I feel this way helps loyalty and returning visitors (and so the lost space is back).

Take a look here: https://reacttraining.com/react-router/core/api/Route/exact-bool

exact: bool

When true, will only match if the path matches the location.pathname exactly.

**path**    **location.pathname**   **exact**   **matches?**

/one        /one/two                true        no
/one        /one/two                false       yes

If you are trying to access the variable from another PHP file directly, you can include that file with include() or include_once(), giving you access to that variable. Note that this will include the entire first file in the second file.

Download the developer edition. There you can choose Express as license when installing.

There's an excellent plugin called ApplySyntax (previously DetectSyntax) that provides certain other niceties for file-syntax matching. allows regex expressions etc.

I would achieve it in a one-liner as shown below:

using System;
using System.Collections;

namespace stackoverflowQuestions
{
    class Program
    {
        static void Main(string[] args)
        {    
            //get bit Array for number 20
            var myBitArray = new BitArray(BitConverter.GetBytes(20));
        }
    }
}

Please note that every element of a BitArray is stored as bool as shown in below snapshot:

So below code works:

if (myBitArray[0] == false)
{
    //this code block will execute
}

but below code doesn't compile at all:

if (myBitArray[0] == 0)
{
    //some code
}

xCode 7.3.1 iOS 9.3.2

 _siteLabel.layer.masksToBounds = true;
  _siteLabel.layer.cornerRadius = 8;

You can escape (this is how this principle is called) the double quotes by prefixing them with another double quote. You can put them in a string as follows:

Dim MyVar as string = "some text ""hello"" "

This will give the MyVar variable a value of some text "hello".

As the answers above point out, there are a number of ways to determine the most significant bit. However, as was also pointed out, the methods are likely to be unique to either 32bit or 64bit registers. The stanford.edu bithacks page provides solutions that work for both 32bit and 64bit computing. With a little work, they can be combined to provide a solid cross-architecture approach to obtaining the MSB. The solution I arrived at that compiled/worked across 64 & 32 bit computers was:

#if defined(__LP64__) || defined(_LP64)
# define BUILD_64   1
#endif

#include <stdio.h>
#include <stdint.h>  /* for uint32_t */

/* CHAR_BIT  (or include limits.h) */
#ifndef CHAR_BIT
#define CHAR_BIT  8
#endif  /* CHAR_BIT */

/* 
 * Find the log base 2 of an integer with the MSB N set in O(N)
 * operations. (on 64bit & 32bit architectures)
 */
int
getmsb (uint32_t word)
{
    int r = 0;
    if (word < 1)
        return 0;
#ifdef BUILD_64
    union { uint32_t u[2]; double d; } t;  // temp
    t.u[__FLOAT_WORD_ORDER==LITTLE_ENDIAN] = 0x43300000;
    t.u[__FLOAT_WORD_ORDER!=LITTLE_ENDIAN] = word;
    t.d -= 4503599627370496.0;
    r = (t.u[__FLOAT_WORD_ORDER==LITTLE_ENDIAN] >> 20) - 0x3FF;
#else
    while (word >>= 1)
    {
        r++;
    }
#endif  /* BUILD_64 */
    return r;
}

With java-8, you can do it this way.

double[] arr = frameList.stream().mapToDouble(Double::doubleValue).toArray(); //via method reference
double[] arr = frameList.stream().mapToDouble(d -> d).toArray(); //identity function, Java unboxes automatically to get the double value

What it does is :

• get the Stream<Double> from the list
• map each double instance to its primitive value, resulting in a DoubleStream
• call toArray() to get the array.

var oldString = "stackoverflow";
var str=oldString.replace(/stackover/g,"NO");
$scope.newString= str;

It works for me. Use an intermediate variable.

Use this to cut off the non needed characters:

String.substring(0, maxLength); 

Example:

String aString ="123456789";
String cutString = aString.substring(0, 4);
// Output is: "1234" 

To ensure you are not getting an IndexOutOfBoundsException when the input string is less than the expected length do the following instead:

int maxLength = (inputString.length() < MAX_CHAR)?inputString.length():MAX_CHAR;
inputString = inputString.substring(0, maxLength);

If you want your integers and doubles to have a certain length then I suggest you use NumberFormat to format your numbers instead of cutting off their string representation.

If your service works fine with only models and the GET/POST/PUT/DELETE pattern, use pure REST.

I agree that HTTP is originally designed for stateless applications.

But for modern, more complex (!) real-time (web) applications where you will want to use Websockets (which often imply statefulness), why not use both? JSON-RPC over Websockets is very light so you have the following benefits:

• Instant updates on every client (define your own server-to-client RPC call for updating the models)
• Easy to add complexity (try to make an Etherpad clone with only REST)
• If you do it right (add RPC only as an extra for real-time), most is still usable with only REST (except if the main feature is a chat or something)

As you are only designing the server side API, start with defining REST models and later add JSON-RPC support as needed, keeping the number of RPC calls to a minimum.

(and sorry for parentheses overuse)

Without jQuery disable input will be simpler

Button.disabled=1;

function dis() {_x000D_
  Button.disabled= !Button.disabled;_x000D_
}

<input id="Button" type="button" value="+" style="background-color:grey" onclick="Me();"/>_x000D_
_x000D_
<button onclick="dis()">Toggle disable</button>

This may not be the source of your problem but I have spent hours trying to track down why my application that worked fine on the iphone cause the android browser to constantly throw up the vertical/horizontal scrollbars and actually move the page. I had an html body tag with height and width set to 100%, and the body was full of various tags in different locations. No matter what I tried, the android browsers would show their scroll bars and move the page just a little bit, particularly when doing a fast swipe. The solution that worked for me without having to do anything in an APK was to add the following to the body tag:

leftmargin="0" topmargin="0"

It seems the default margins for body tag were being applied on the droid but ignored on the iphone

I tried a mouse move solution too, and it likewise didn't work. This was my solution, to quickly toggle Scroll Lock every 4 minutes:

Clear-Host
Echo "Keep-alive with Scroll Lock..."

$WShell = New-Object -com "Wscript.Shell"

while ($true)
{
  $WShell.sendkeys("{SCROLLLOCK}")
  Start-Sleep -Milliseconds 100
  $WShell.sendkeys("{SCROLLLOCK}")
  Start-Sleep -Seconds 240
}

I used Scroll Lock because that's one of the most useless keys on the keyboard. Also could be nice to see it briefly blink every now and then. This solution should work for just about everyone, I think.

See also:

• https://ss64.com/vb/sendkeys.html
• http://devguru.com/content/technologies/wsh/wshshell-sendkeys.html

Use 'subset'

DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
subset(DF, !is.na(y))

My regex of choice is:

/^[\+]?[(]?[0-9]{3}[)]?[-\s\.]?[0-9]{3}[-\s\.]?[0-9]{4,6}$/im

Valid formats:

(123) 456-7890
(123)456-7890
123-456-7890
123.456.7890
1234567890
+31636363634
075-63546725

Considering all of your API requests located with a url pattern of /api/.. you can tell spring to secure only this url pattern by using below configuration. Which means that you are telling spring what to secure instead of what to ignore.

@Override
protected void configure(HttpSecurity http) throws Exception {
  http
    .csrf().disable()
     .authorizeRequests()
      .antMatchers("/api/**").authenticated()
      .anyRequest().permitAll()
      .and()
    .httpBasic().and()
    .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}

Solved this by adding following

RewriteCond %{ENV:REDIRECT_STATUS} 200 [OR]
 RewriteCond %{REQUEST_FILENAME} -f [OR]
 RewriteCond %{REQUEST_FILENAME} -d
 RewriteRule ^ - [L]

A String is an immutable character array.

A StringBuffer is a mutable character array. Often converted back to String when done mutating.

Since both are an array, the maximum size for both is equal to the maximum size of an integer, which is 2^31-1 (see JavaDoc, also check out the JavaDoc for both String and StringBuffer).This is because the .length argument of an array is a primitive int. (See Arrays).

In case you actually mean what you seem to ask, I'll provide this alternative answer.

You say you want the dict to return a specified value, you do not say you want to set that value at the same time, like defaultdict does. This will do so:

class DictWithDefault(dict):
    def __init__(self, default, **kwargs):
        self.default = default
        super(DictWithDefault, self).__init__(**kwargs)

    def __getitem__(self, key):
        if key in self:
            return super(DictWithDefault, self).__getitem__(key)
        return self.default

Use like this:

d = DictWIthDefault(99, x=5, y=3)
print d["x"]   # 5
print d[42]    # 99
42 in d        # False
d[42] = 3
42 in d        # True

Alternatively, you can use a standard dict like this:

d = {3: 9, 4: 2}
default = 99
print d.get(3, default)  # 9
print d.get(42, default) # 99

This error may happen when mapping variables you defined in REST definition do not match with @PathVariable names.

Example: Suppose you defined in the REST definition

@GetMapping(value = "/{appId}", produces = "application/json", consumes = "application/json")

Then during the definition of the function, it should be

public ResponseEntity<List> getData(@PathVariable String appId)

This error may occur when you use any other variable other than defined in the REST controller definition with @PathVariable. Like, the below code will raise the error as ID is different than appId variable name:

public ResponseEntity<List> getData(@PathVariable String ID)

I think Amith Koujalgi is correct but also, in cases where the webservice responses are in JSON then it might be more useful to see the results in a clean JSON format instead of a very long string. Just add | grep }| python -mjson.tool to the end of curl commands here is two examples:

GET approach with JSON result

curl -i -H "Accept: application/json" http://someHostName/someEndpoint | grep }| python -mjson.tool 

POST approach with JSON result

curl -X POST  -H "Accept: Application/json" -H "Content-Type: application/json" http://someHostName/someEndpoint -d '{"id":"IDVALUE","name":"Mike"}' | grep }| python -mjson.tool

Actually, it is possible without C# code. The key is to use interactions:

<Button Content="Close">
  <i:Interaction.Triggers>
    <i:EventTrigger EventName="Click">
      <ei:CallMethodAction TargetObject="{Binding ElementName=window}" MethodName="Close"/>
    </i:EventTrigger>
  </i:Interaction.Triggers>
</Button>

In order for this to work, just set the x:Name of your window to "window", and add these two namespaces:

xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" 
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"

This requires that you add the Expression Blend SDK DLL to your project, specifically Microsoft.Expression.Interactions.

In case you don't have Blend, the SDK can be downloaded here.

jQuery.fn.extend({
    zigzag: function () {
        var text = $(this).text();
        var zigzagText = '';
        var toggle = true; //lower/uppper toggle
            $.each(text, function(i, nome) {
                zigzagText += (toggle) ? nome.toUpperCase() : nome.toLowerCase();
                toggle = (toggle) ? false : true;
            });
    return zigzagText;
    }
});

There is an alternative approach, which does not have I18n problems (allowing ',' or '.' but not both): Decimal.TryParse.

Just try converting, ignoring the value.

bool IsDecimalFormat(string input) {
  Decimal dummy;
  return Decimal.TryParse(input, out dummy);
}

This is significantly faster than using a regular expression, see below.

(The overload of Decimal.TryParse can be used for finer control.)

Performance test results: Decimal.TryParse: 0.10277ms, Regex: 0.49143ms

Code (PerformanceHelper.Run is a helper than runs the delegate for passed iteration count and returns the average TimeSpan.):

using System;
using System.Text.RegularExpressions;
using DotNetUtils.Diagnostics;

class Program {
    static private readonly string[] TestData = new string[] {
        "10.0",
        "10,0",
        "0.1",
        ".1",
        "Snafu",
        new string('x', 10000),
        new string('2', 10000),
        new string('0', 10000)
    };

    static void Main(string[] args) {
        Action parser = () => {
            int n = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i) {
                decimal dummy;
                count += Decimal.TryParse(TestData[i], out dummy) ? 1 : 0;
            }
        };
        Regex decimalRegex = new Regex(@"^[0-9]([\.\,][0-9]{1,3})?$");
        Action regex = () => {
            int n = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i) {
                count += decimalRegex.IsMatch(TestData[i]) ? 1 : 0;
            }
        };

        var paserTotal = 0.0;
        var regexTotal = 0.0;
        var runCount = 10;
        for (int run = 1; run <= runCount; ++run) {
            var parserTime = PerformanceHelper.Run(10000, parser);
            var regexTime = PerformanceHelper.Run(10000, regex);

            Console.WriteLine("Run #{2}: Decimal.TryParse: {0}ms, Regex: {1}ms",
                              parserTime.TotalMilliseconds, 
                              regexTime.TotalMilliseconds,
                              run);
            paserTotal += parserTime.TotalMilliseconds;
            regexTotal += regexTime.TotalMilliseconds;
        }

        Console.WriteLine("Overall averages: Decimal.TryParse: {0}ms, Regex: {1}ms",
                          paserTotal/runCount,
                          regexTotal/runCount);
    }
}

Hardware

If a GPU device has, for example, 4 multiprocessing units, and they can run 768 threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn).

Software

threads are organized in blocks. A block is executed by a multiprocessing unit. The threads of a block can be indentified (indexed) using 1Dimension(x), 2Dimensions (x,y) or 3Dim indexes (x,y,z) but in any case xyz <= 768 for our example (other restrictions apply to x,y,z, see the guide and your device capability).

Obviously, if you need more than those 4*768 threads you need more than 4 blocks. Blocks may be also indexed 1D, 2D or 3D. There is a queue of blocks waiting to enter the GPU (because, in our example, the GPU has 4 multiprocessors and only 4 blocks are being executed simultaneously).

Now a simple case: processing a 512x512 image

Suppose we want one thread to process one pixel (i,j).

We can use blocks of 64 threads each. Then we need 512*512/64 = 4096 blocks (so to have 512x512 threads = 4096*64)

It's common to organize (to make indexing the image easier) the threads in 2D blocks having blockDim = 8 x 8 (the 64 threads per block). I prefer to call it threadsPerBlock.

dim3 threadsPerBlock(8, 8);  // 64 threads

and 2D gridDim = 64 x 64 blocks (the 4096 blocks needed). I prefer to call it numBlocks.

dim3 numBlocks(imageWidth/threadsPerBlock.x,  /* for instance 512/8 = 64*/
              imageHeight/threadsPerBlock.y); 

The kernel is launched like this:

myKernel <<<numBlocks,threadsPerBlock>>>( /* params for the kernel function */ );       

Finally: there will be something like "a queue of 4096 blocks", where a block is waiting to be assigned one of the multiprocessors of the GPU to get its 64 threads executed.

In the kernel the pixel (i,j) to be processed by a thread is calculated this way:

uint i = (blockIdx.x * blockDim.x) + threadIdx.x;
uint j = (blockIdx.y * blockDim.y) + threadIdx.y;

Try this :

char c = '5' - '0';

Another way to do this in Notepad++ is all in the Find/Replace dialog and with regex:

• Ctrl + h to bring up the find replace dialog.

• In the Find what: text box include your regex: .*help.*\r?\n (where the \r is optional in case the file doesn't have Windows line endings).

• Leave the Replace with: text box empty.

• Make sure the Regular expression radio button in the Search Mode area is selected. Then click Replace All and voila! All lines containing your search term help have been removed.

You're all concentrating on the word 'get' in the question. Try the 'elements' property of any form which is a collection that you can iterate through i.e. you write your own 'get' function.

Example:

function getFormElelemets(formName){
  var elements = document.forms[formName].elements;
  for (i=0; i<elements.length; i++){
    some code...
  }
}

Hope that helps.

You can sort-of do that with objects, as in the following.

Dim w As New Widget

But not with strings or variants.

Declarative vs. Imperative

A programming paradigm is a fundamental style of computer programming. There are four main paradigms: imperative, declarative, functional (which is considered a subset of the declarative paradigm) and object-oriented.

Declarative programming : is a programming paradigm that expresses the logic of a computation(What do) without describing its control flow(How do). Some well-known examples of declarative domain specific languages (DSLs) include CSS, regular expressions, and a subset of SQL (SELECT queries, for example) Many markup languages such as HTML, MXML, XAML, XSLT... are often declarative. The declarative programming try to blur the distinction between a program as a set of instructions and a program as an assertion about the desired answer.

Imperative programming : is a programming paradigm that describes computation in terms of statements that change a program state. The declarative programs can be dually viewed as programming commands or mathematical assertions.

Functional programming : is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids state and mutable data. It emphasizes the application of functions, in contrast to the imperative programming style, which emphasizes changes in state. In a pure functional language, such as Haskell, all functions are without side effects, and state changes are only represented as functions that transform the state.

The following example of imperative programming in MSDN, loops through the numbers 1 through 10, and finds the even numbers.

var numbersOneThroughTen = new List<int> { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
//With imperative programming, we'd step through this, and decide what we want:
var evenNumbers = new List<int>();
foreach (var number in numbersOneThroughTen)
{    if (number % 2 == 0)
    {
        evenNumbers.Add(number);
    }
}
//The following code uses declarative programming to accomplish the same thing.
// Here, we're saying "Give us everything where it's even"
var evenNumbers = numbersOneThroughTen.Select(number => number % 2 == 0);

Both examples yield the same result, and one is neither better nor worse than the other. The first example requires more code, but the code is testable, and the imperative approach gives you full control over the implementation details. In the second example, the code is arguably more readable; however, LINQ does not give you control over what happens behind the scenes. You must trust that LINQ will provide the requested result.

Using axes objects is a great approach for this. It helps if you want to interact with multiple figures and sub-plots. To add and manipulate the axes objects directly:

import matplotlib.pyplot as plt
fig = plt.figure(figsize=(12,9))

signal_axes = fig.add_subplot(211)
signal_axes.plot(xs,rawsignal)

fft_axes = fig.add_subplot(212)
fft_axes.set_title("FFT")
fft_axes.set_autoscaley_on(False)
fft_axes.set_ylim([0,1000])
fft = scipy.fft(rawsignal)
fft_axes.plot(abs(fft))

plt.show()

This took me ages to figure out but could you try the same -

1 - Update and Upgrade

sudo apt-get update
sudo apt-get upgrade

2 - Purge MySQL Server and Client (if installed).

sudo apt-get purge mysql-server mysql-client

3 - Install MySQL Server and Client fresh

sudo apt-get install mysql-server mysql-client

4 - Test MySQL

mysql -u root -p
> enter root password

*** should get socket not found in /var/run/mysqld/mysql.sock

4 - Configure mysqld.cnf with nano of vi

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

Change bind-address from 127.0.0.1 to localhost

bind-address            = localhost

** Write and Exit

5 - Restart MySQL

sudo /etc/init.d/mysql restart

6 - check mysql

mysql -u root -p
> enter root password

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.7.13-0ubuntu0.16.04.2 (Ubuntu)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

You should get in to mysql cli now.

Hope this helps

Code.Ph0y

Assume we have the following class:

#include <vector>

class Matrix {
 private:
  std::vector<std::vector<int>> data;
};

First of all I would like suggest you to implement a default constructor:

#include <vector>

class Matrix {
 public:
  Matrix(): data({}) {}

 private:
  std::vector<std::vector<int>> data;
};

At this time we can create Matrix instance as follows:

Matrix one;

The next strategic step is to implement a Reset method, which takes two integer parameters that specify the new number of rows and columns of the matrix, respectively:

#include <vector>

class Matrix {
 public:
  Matrix(): data({}) {}

  Matrix(const int &rows, const int &cols) {
    Reset(rows, cols);
  }

  void Reset(const int &rows, const int &cols) {
    if (rows == 0 || cols == 0) {
      data.assign(0, std::vector<int>(0));
    } else {
      data.assign(rows, std::vector<int>(cols));
    }
  }

 private:
  std::vector<std::vector<int>> data;
};

At this time the Reset method changes the dimensions of the 2D-matrix to the given ones and resets all its elements. Let me show you a bit later why we may need this.

Well, we can create and initialize our matrix:

Matrix two(3, 5);

Lets add info methods for our matrix:

#include <vector>

class Matrix {
 public:
  Matrix(): data({}) {}

  Matrix(const int &rows, const int &cols) {
    Reset(rows, cols);
  }

  void Reset(const int &rows, const int &cols) {
    data.resize(rows);
    for (int i = 0; i < rows; ++i) {
      data.at(i).resize(cols);
    }
  }

  int GetNumRows() const {
    return data.size();
  }

  int GetNumColumns() const {
    if (GetNumRows() > 0) {
      return data[0].size();
    }

    return 0;
  }

 private:
  std::vector<std::vector<int>> data;
};

At this time we can get some trivial matrix debug info:

#include <iostream>

void MatrixInfo(const Matrix& m) {
  std::cout << "{ \"rows\": " << m.GetNumRows()
            << ", \"cols\": " << m.GetNumColumns() << " }" << std::endl;
}

int main() {
  Matrix three(3, 4);
  MatrixInfo(three);
}

The second class method we need at this time is At. A sort of getter for our private data:

#include <vector>

class Matrix {
 public:
  Matrix(): data({}) {}

  Matrix(const int &rows, const int &cols) {
    Reset(rows, cols);
  }

  void Reset(const int &rows, const int &cols) {
    data.resize(rows);
    for (int i = 0; i < rows; ++i) {
      data.at(i).resize(cols);
    }
  }

  int At(const int &row, const int &col) const {
    return data.at(row).at(col);
  }

  int& At(const int &row, const int &col) {
    return data.at(row).at(col);
  }

  int GetNumRows() const {
    return data.size();
  }

  int GetNumColumns() const {
    if (GetNumRows() > 0) {
      return data[0].size();
    }

    return 0;
  }

 private:
  std::vector<std::vector<int>> data;
};

The constant At method takes the row number and column number and returns the value in the corresponding matrix cell:

#include <iostream>

int main() {
  Matrix three(3, 4);
  std::cout << three.At(1, 2); // 0 at this time
}

The second, non-constant At method with the same parameters returns a reference to the value in the corresponding matrix cell:

#include <iostream>

int main() {
  Matrix three(3, 4);
  three.At(1, 2) = 8;
  std::cout << three.At(1, 2); // 8
}

Finally lets implement >> operator:

#include <iostream>

std::istream& operator>>(std::istream& stream, Matrix &matrix) {
  int row = 0, col = 0;

  stream >> row >> col;
  matrix.Reset(row, col);

  for (int r = 0; r < row; ++r) {
    for (int c = 0; c < col; ++c) {
      stream >> matrix.At(r, c);
    }
  }

  return stream;
}

And test it:

#include <iostream>

int main() {
  Matrix four; // An empty matrix

  MatrixInfo(four);
  // Example output:
  //
  // { "rows": 0, "cols": 0 }

  std::cin >> four;
  // Example input
  //
  // 2 3
  // 4 -1 10
  // 8 7 13

  MatrixInfo(four);
  // Example output:
  //
  // { "rows": 2, "cols": 3 }
}

Feel free to add out of range check. I hope this example helps you :)

if you use 64-bit pc, oracle doesn't compatible with it. Oracle doesn't find oci.dll file in 64-bit.

Therefore, you can try to change oracle home on the top. As a result of that, home path will change.

At least, I solved that error with changing path.

You're getting a linker error, so your extern is working (the compiler compiled a.c without a problem), but when it went to link the object files together at the end it couldn't resolve your extern -- void doSomething(int); wasn't actually found anywhere. Did you mess up the extern? Make sure there's actually a doSomething defined in b.c that takes an int and returns void, and make sure you remembered to include b.c in your file list (i.e. you're doing something like gcc a.c b.c, not just gcc a.c)

First of all do error handling where ever you trying to dismiss the dialog.

 if ((progressDialog != null) && progressDialog.isShowing()) {
            progressDialog.dismiss();
            progressDialog = null;
        }

If that doesn't fix then dismiss it in onStop() Method of the activity.

 @Override
    protected void onStop() {
        super.onStop();
        if ((progressDialog != null) && progressDialog.isShowing()) {
            progressDialog.dismiss();
            progressDialog = null;
        }
    }

I explain both why you would want to call a PowerShell script from a batch file and how to do it in my blog post here.

This is basically what you are looking for:

PowerShell -NoProfile -ExecutionPolicy Bypass -Command "& 'C:\Users\SE\Desktop\ps.ps1'"

And if you need to run your PowerShell script as an admin, use this:

PowerShell -NoProfile -ExecutionPolicy Bypass -Command "& {Start-Process PowerShell -ArgumentList '-NoProfile -ExecutionPolicy Bypass -File ""C:\Users\SE\Desktop\ps.ps1""' -Verb RunAs}"

Rather than hard-coding the entire path to the PowerShell script though, I recommend placing the batch file and PowerShell script file in the same directory, as my blog post describes.

Check if it's visible.

$("#singlechatpanel-1").is(':visible');

Check if it's hidden.

$("#singlechatpanel-1").is(':hidden');

I have same problem and get this error in hostname.err in directory /Applications/XAMPP/xamppfiles/var/mysql

2016-09-06 15:32:45 140735322399488 [Note] Plugin 'FEEDBACK' is disabled. 2016-09-06 15:32:45 140735322399488 [Note] Heuristic crash recovery mode 2016-09-06 15:32:45 140735322399488 [Note] Please restart mysqld without --tc-heuristic-recover 2016-09-06 15:32:45 140735322399488 [ERROR] Can't init tc log 2016-09-06 15:32:45 140735322399488 [ERROR] Aborting

2016-09-06 15:32:48 20004 mysqld_safe mysqld from pid file /Applications/XAMPP/xamppfiles/var/mysql/hostname.pid ended

Then I removed tc.log and It works fine after restart mysql through manager-osx

You could also do something like this:

df = df[['x', 'y', 'a', 'b']]

You can get the list of columns with:

cols = list(df.columns.values)

The output will produce something like this:

['a', 'b', 'x', 'y']

...which is then easy to rearrange manually before dropping it into the first function

If you are in a JEE7 environment, you must have a decent implementation of JAXRS hanging around, which would allow you to easily make asynchronous HTTP request using its client API.

This would looks like this:

public class Main {

    public static Future<Response> getAsyncHttp(final String url) {
        return ClientBuilder.newClient().target(url).request().async().get();
    }

    public static void main(String ...args) throws InterruptedException, ExecutionException {
        Future<Response> response = getAsyncHttp("http://www.nofrag.com");
        while (!response.isDone()) {
            System.out.println("Still waiting...");
            Thread.sleep(10);
        }
        System.out.println(response.get().readEntity(String.class));
    }
}

Of course, this is just using futures. If you are OK with using some more libraries, you could take a look at RxJava, the code would then look like:

public static void main(String... args) {
    final String url = "http://www.nofrag.com";
    rx.Observable.from(ClientBuilder.newClient().target(url).request().async().get(String.class), Schedulers
            .newThread())
            .subscribe(
                    next -> System.out.println(next),
                    error -> System.err.println(error),
                    () -> System.out.println("Stream ended.")
            );
    System.out.println("Async proof");
}

And last but not least, if you want to reuse your async call, you might want to take a look at Hystrix, which - in addition to a bazillion super cool other stuff - would allow you to write something like this:

For example:

public class AsyncGetCommand extends HystrixCommand<String> {

    private final String url;

    public AsyncGetCommand(final String url) {
        super(Setter.withGroupKey(HystrixCommandGroupKey.Factory.asKey("HTTP"))
                .andCommandPropertiesDefaults(HystrixCommandProperties.Setter()
                        .withExecutionIsolationThreadTimeoutInMilliseconds(5000)));
        this.url = url;
    }

    @Override
    protected String run() throws Exception {
        return ClientBuilder.newClient().target(url).request().get(String.class);
    }

 }

Calling this command would look like:

public static void main(String ...args) {
    new AsyncGetCommand("http://www.nofrag.com").observe().subscribe(
            next -> System.out.println(next),
            error -> System.err.println(error),
            () -> System.out.println("Stream ended.")
    );
    System.out.println("Async proof");
}

PS: I know the thread is old, but it felt wrong that no ones mentions the Rx/Hystrix way in the up-voted answers.

The solution is given in the error itself, Goto My computer(Right click)-->properties-->Advanced system settings-->Environment variables-->Create new variable.

Give the following details to it:

Variable name : JAVA_HOME.

Variable value : (your path to java jdk installation folder).

To find the path for java installation, go to program files in your window installation drive (normally C drive). Find folder named JAVA, in that navigate to JDK folder.

Copy the link address from the top, and paste it in the Variable value .

Now Press Ok and once environment variable gets created restart the android studio.

Hope it helps.

if you can code, write a console app. here is the c# equivalent of what you're after. you can do what you want with the results (split, execute etc):

SqlCommand command = null;
try
{
    using (var connection = new SqlConnection("XXXX"))
    {
        command = new SqlCommand();
        command.Connection = connection;
        if (command.Connection.State == ConnectionState.Closed) command.Connection.Open();
        // Create an instance of StreamReader to read from a file.
        // The using statement also closes the StreamReader.
        using (StreamReader sr = new StreamReader("C:\\test.txt"))
        {
            String line;
            // Read and display lines from the file until the end of 
            // the file is reached.
            while ((line = sr.ReadLine()) != null)
            {
                Console.WriteLine(line);
                command.CommandText = line;
                command.ExecuteNonQuery();
                Console.Write(" - DONE");
            }
        }
    }
}
catch (Exception e)
{
    // Let the user know what went wrong.
    Console.WriteLine("The file could not be read:");
    Console.WriteLine(e.Message);
}
finally
{
    if (command.Connection.State == ConnectionState.Open) command.Connection.Close();
}

Nothing works in my case using the scripts above but I was able to close these figures from eclipse console bar by clicking on Terminate ALL (two red nested squares icon).