SyntaxFix.com - Programming Questions & Answers Hub For Beginners

Note that the default when you make a class is not public as far as packages are considered. Make sure that you actually write public class [MyClass] { when defining your class. I've made this mistake more times than I care to admit.

Try this Bash syntax instead of trying to use an external program expr:

count=$((FIRSTV-SECONDV))

BTW, the correct syntax of using expr is:

count=$(expr $FIRSTV - $SECONDV)

But keep in mind using expr is going to be slower than the internal Bash syntax I provided above.

@echo on>out.txt
@echo off
setlocal enabledelayedexpansion
set "parentfolder=%CD%"
for /r . %%g in (*.*) do (
  set "var=%%g"
  set var=!var:%parentfolder%=!
  echo !var! >> out.txt
)

Static Memory Allocation:

• Variables get allocated permanently
• Allocation is done before program execution
• It uses the data structure called stack for implementing static allocation
• Less efficient
• There is no memory reusability

Dynamic Memory Allocation:

• Variables get allocated only if the program unit gets active
• Allocation is done during program execution
• It uses the data structure called heap for implementing dynamic allocation
• More efficient
• There is memory reusability . Memory can be freed when not required

In both Python 2 and 3, using the module pathlib2:

import posixpath  # to generate unix paths
from pathlib2 import PurePath, PureWindowsPath, PurePosixPath

def path2unix(path, nojoin=True, fromwinpath=False):
    """From a path given in any format, converts to posix path format
    fromwinpath=True forces the input path to be recognized as a Windows path (useful on Unix machines to unit test Windows paths)"""
    if not path:
        return path
    if fromwinpath:
        pathparts = list(PureWindowsPath(path).parts)
    else:
        pathparts = list(PurePath(path).parts)
    if nojoin:
        return pathparts
    else:
        return posixpath.join(*pathparts)

Usage:

In [9]: path2unix('lala/lolo/haha.dat')
Out[9]: ['lala', 'lolo', 'haha.dat']

In [10]: path2unix(r'C:\lala/lolo/haha.dat')
Out[10]: ['C:\\', 'lala', 'lolo', 'haha.dat']

In [11]: path2unix(r'C:\lala/lolo/haha.dat') # works even with malformatted cases mixing both Windows and Linux path separators
Out[11]: ['C:\\', 'lala', 'lolo', 'haha.dat']

With your testcase:

In [12]: testcase = paths = ['a/b/c/', 'a/b/c', '\\a\\b\\c', '\\a\\b\\c\\', 'a\\b\\c',
    ...: ...     'a/b/../../a/b/c/', 'a/b/../../a/b/c']

In [14]: for t in testcase:
    ...:     print(path2unix(t)[-1])
    ...:
    ...:
c
c
c
c
c
c
c

The idea here is to convert all paths into the unified internal representation of pathlib2, with different decoders depending on the platform. Fortunately, pathlib2 includes a generic decoder called PurePath that should work on any path. In case this does not work, you can force the recognition of windows path using fromwinpath=True. This will split the input string into parts, the last one is the leaf you are looking for, hence the path2unix(t)[-1].

If the argument nojoin=False, the path will be joined back, so that the output is simply the input string converted to a Unix format, which can be useful to compare subpaths across platforms.

You can try this :-

AlterDialog alterdialog;
alertDialog.setCanceledOnTouchOutside(true);

or

alertDialog.setCancelable(true);

And if you have a AlterDialog.Builder Then you can try this:-

alertDialogBuilder.setCancelable(true);

As selected answer says you can use findAndModify to generate sequential IDs.

But I strongly disagree with opinion that you should not do that. It all depends on your business needs. Having 12-byte ID may be very resource consuming and cause significant scalability issues in future.

I have detailed answer here.

1) Use a CSS stylesheet - add <link rel="stylesheet" type="text/css" href="styles.css" /> to include it.

2) Apply the background to the body:

body {
    background-image:url('images/background.png');
    background-repeat:no-repeat;
    background-attachment:fixed;
}

See:

http://www.w3schools.com/css/css_howto.asp

http://www.w3schools.com/cssref/pr_background-position.asp

Why not simply this?

resultString = Regex.Replace(subjectString, @"\\", "");

ObjectPath is a library that provides ability to query JSON and nested structures of dicts and lists. For example, you can search for all attributes called "foo" regardless how deep they are by using $..foo.

While the documentation focuses on the command line interface, you can perform the queries programmatically by using the package's Python internals. The example below assumes you've already loaded the data into Python data structures (dicts & lists). If you're starting with a JSON file or string you just need to use load or loads from the json module first.

import objectpath

data = [
    {'foo': 1, 'bar': 'a'},
    {'foo': 2, 'bar': 'b'},
    {'NoFooHere': 2, 'bar': 'c'},
    {'foo': 3, 'bar': 'd'},
]

tree_obj = objectpath.Tree(data)

tuple(tree_obj.execute('$..foo'))
# returns: (1, 2, 3)

Notice that it just skipped elements that lacked a "foo" attribute, such as the third item in the list. You can also do much more complex queries, which makes ObjectPath handy for deeply nested structures (e.g. finding where x has y that has z: $.x.y.z). I refer you to the documentation and tutorial for more information.

For me I doing this:

import paramiko
hostname = 'my hostname or IP' 
myuser   = 'the user to ssh connect'
mySSHK   = '/path/to/sshkey.pub'
sshcon   = paramiko.SSHClient()  # will create the object
sshcon.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # no known_hosts error
sshcon.connect(hostname, username=myuser, key_filename=mySSHK) # no passwd needed

works for me pretty ok

Not only you can add a path, but you can add git diff --relative to get result relative to that folder.

git -C a/folder diff --relative

And with Git 2.28 (Q3 2020), the commands in the "diff" family learned to honor the "diff.relative" configuration variable.

See commit c28ded8 (22 May 2020) by Laurent Arnoud (spk).
^{(Merged by Junio C Hamano -- gitster -- in commit e34df9a, 02 Jun 2020)}

diff: add config option relative

^{Signed-off-by: Laurent Arnoud
Acked-by: Ðoàn Tr?n Công Danh}

The diff.relative boolean option set to true shows only changes in the current directory/value specified by the path argument of the relative option and shows pathnames relative to the aforementioned directory.

Teach --no-relative to override earlier --relative

Add for git-format-patch(1) options documentation --relative and --no-relative

The documentation now includes:

diff.relative:

If set to 'true', 'git diff' does not show changes outside of the directory and show pathnames relative to the current directory.

The "nav nav-list" class of Twiter Bootstrap 2.0 is handy for building a side bar.

You can see a lot of documentation at http://www.w3resource.com/twitter-bootstrap/nav-tabs-and-pills-tutorial.php

sentence.sub! 'Robert', 'Joe'

Won't cause an exception if the replaced word isn't in the sentence (the []= variant will).

How to replace all instances?

The above replaces only the first instance of "Robert".

To replace all instances use gsub/gsub! (ie. "global substitution"):

sentence.gsub! 'Robert', 'Joe'

The above will replace all instances of Robert with Joe.

If you don't mind importing the json module, then the best way to handle it is through json.JSONDecodeError (or json.decoder.JSONDecodeError as they are the same) as using default errors like ValueError could catch also other exceptions not necessarily connected to the json decode one.

from json.decoder import JSONDecodeError


try:
    qByUser = byUsrUrlObj.read()
    qUserData = json.loads(qByUser).decode('utf-8')
    questionSubjs = qUserData["all"]["questions"]
except JSONDecodeError as e:
    # do whatever you want

//EDIT (Oct 2020):

As @Jacob Lee noted in the comment, there could be the basic common TypeError raised when the JSON object is not a str, bytes, or bytearray. Your question is about JSONDecodeError, but still it is worth mentioning here as a note; to handle also this situation, but differentiate between different issues, the following could be used:

from json.decoder import JSONDecodeError


try:
    qByUser = byUsrUrlObj.read()
    qUserData = json.loads(qByUser).decode('utf-8')
    questionSubjs = qUserData["all"]["questions"]
except JSONDecodeError as e:
    # do whatever you want
except TypeError as e:
    # do whatever you want in this case

if you are using dynamic ip just grant access to 192.168.2.% so now you dont have to worry about granting access to your ip address every time.

Technically, Breadth-first search (BFS) by itself does not let you find the shortest path, simply because BFS is not looking for a shortest path: BFS describes a strategy for searching a graph, but it does not say that you must search for anything in particular.

Dijkstra's algorithm adapts BFS to let you find single-source shortest paths.

In order to retrieve the shortest path from the origin to a node, you need to maintain two items for each node in the graph: its current shortest distance, and the preceding node in the shortest path. Initially all distances are set to infinity, and all predecessors are set to empty. In your example, you set A's distance to zero, and then proceed with the BFS. On each step you check if you can improve the distance of a descendant, i.e. the distance from the origin to the predecessor plus the length of the edge that you are exploring is less than the current best distance for the node in question. If you can improve the distance, set the new shortest path, and remember the predecessor through which that path has been acquired. When the BFS queue is empty, pick a node (in your example, it's E) and traverse its predecessors back to the origin. This would give you the shortest path.

If this sounds a bit confusing, wikipedia has a nice pseudocode section on the topic.

Here’s another algorithm for ensuring the numbers are unique:

1. generate an array of all the numbers from 0 to x
2. shuffle the array so the elements are in random order
3. pick the first n

Compared to the method of generating random numbers until you get a unique one, this method uses more memory, but it has a more stable running time – the results are guaranteed to be found in finite time. This method works better if the upper limit is relatively low or if the amount to take is relatively high.

My answer uses the Lodash library for simplicity, but you could also implement the algorithm described above without that library.

// assuming _ is the Lodash library

// generates `amount` numbers from 0 to `upperLimit` inclusive
function uniqueRandomInts(upperLimit, amount) {
    var possibleNumbers = _.range(upperLimit + 1);
    var shuffled = _.shuffle(possibleNumbers);
    return shuffled.slice(0, amount);
}

#include<iostream>
#include<vector>
#include<string>
using namespace std;
int main()
{
    vector<string>V;
    int num;
    cin>>num;
    string input;
    while (cin>>input && num != 0) //enter any non-integer to end the loop!
{
    //cin>>input;
   V.push_back(input);
   num--;
   if(num==0)
   {
   vector<string>::iterator it;
    for(it=V.begin();it!=V.end();it++)
        cout<<*it<<endl;
   };

}
return 0;

};

light weigh

string.substring(start,end)

where

start = Required. The position where to start the extraction. First character is at index 0`.

end = Optional. The position (up to, but not including) where to end the extraction. If omitted, it extracts the rest of the string.

    var string = "var1/var2/var3";

    start   = string.lastIndexOf('/');  //console.log(start); o/p:- 9
    end     = string.length;            //console.log(end);   o/p:- 14

    var string_before_last_slash = string.substring(0, start);
    console.log(string_before_last_slash);//o/p:- var1/var2

    var string_after_last_slash = string.substring(start+1, end);
    console.log(string_after_last_slash);//o/p:- var3

OR

    var string_after_last_slash = string.substring(start+1);
    console.log(string_after_last_slash);//o/p:- var3

The same with me and Windows 7. I ended up adding two lines to eclipse.ini:

-vm 
C:\Program Files\Java\jdk1.6.0_35\bin

I tried using %JAVA_HOME% there, but it did not work.

What about this regex: \\[^\\]+$

My problem was in the called activity when it tries to return to the previous activity by "finishing." I was incorrectly setting the intent. The following code is Kotlin.

I was doing this:

        intent.putExtra("foo", "bar")
        finish()

When I should have been doing this:

        val result = Intent()
        result.putExtra("foo", "bar")
        setResult(Activity.RESULT_OK, result)
        finish()

1) Are you sure mod_rewrite module is enabled? Check phpinfo()

2) Your above rule assumes the URL starts with "folder". Is this correct? Did you acutally want to have folder in the URL? This would match a URL like:

/folder/thing -> /folder/thing.php

If you actually want

/thing -> /folder/thing.php

You need to drop the folder from the match expression.

I usually use this to route request to page without php (but yours should work which leads me to think that mod_rewrite may not be enabled):

RewriteRule ^([^/\.]+)/?$ $1.php  [L,QSA]

3) Assuming you are declaring your rules in an .htaccess file, does your installation allow for setting Options (AllowOverride) overrides in .htaccess files? Some shared hosts do not.

When the server finds an .htaccess file (as specified by AccessFileName) it needs to know which directives declared in that file can override earlier access information.

in Kotlin :

val jsonArrayString = "['A','B','C']"

val gson = Gson()

val listType: Type = object : TypeToken<List<String?>?>() {}.getType()

val stringList : List<String> = gson.fromJson(
                            jsonArrayString,
                            listType)

Suppose your DataTable has the following columns try this code:

DataTable dt =new DataTable();
txtTGrossWt.Text = dt.Compute("sum(fldGrossWeight)", "").ToString() == "" ? "0" : dt.Compute("sum(fldGrossWeight)", "").ToString();
txtTOtherWt.Text = dt.Compute("sum(fldOtherWeight)", "").ToString() == "" ? "0" : dt.Compute("sum(fldOtherWeight)", "").ToString();
txtTNetWt.Text = dt.Compute("sum(fldNetWeight)", "").ToString() == "" ? "0" : dt.Compute("sum(fldNetWeight)", "").ToString();
txtFinalValue.Text = dt.Compute("sum(fldValue)", "").ToString() == "" ? "0" : dt.Compute("sum(fldValue)", "").ToString();

In python, you can put ‘j’ or ‘J’ after a number to make it imaginary, so you can write complex literals easily:

>>> 1j
1j
>>> 1J
1j
>>> 1j * 1j
(-1+0j)

The ‘j’ suffix comes from electrical engineering, where the variable ‘i’ is usually used for current. (Reasoning found here.)

The type of a complex number is complex, and you can use the type as a constructor if you prefer:

>>> complex(2,3)
(2+3j)

A complex number has some built-in accessors:

>>> z = 2+3j
>>> z.real
2.0
>>> z.imag
3.0
>>> z.conjugate()
(2-3j)

Several built-in functions support complex numbers:

>>> abs(3 + 4j)
5.0
>>> pow(3 + 4j, 2)
(-7+24j)

The standard module cmath has more functions that handle complex numbers:

>>> import cmath
>>> cmath.sin(2 + 3j)
(9.15449914691143-4.168906959966565j)

Self Answer (pretty much summary of other's comments and answers):

• In RStudio, Esc works, on windows, Mac, and ubuntu (and I would guess on other linux distributions as well).

• If the process is ran in say ubuntu shell (and this is not R specific), for example using:

  Rscript my_file.R
  

  Ctrl + c kills the process

  Ctrl + z suspends the process

• Within R shell, Ctrl + C kills helps you escape it

HAVING works in MySQL according to documentation:

The HAVING clause was added to SQL because the WHERE keyword could not be used with aggregate functions.

You need to pass the whole point to location

var point = new Point(50, 100);
this.balancePanel.Location = point;

In order to use word-wrap: break-word, you need to set a width (in px). For example:

div {
    width: 250px;
    word-wrap: break-word;
}

word-wrap is a CSS3 property, but it should work in all browsers, including IE 5.5-9.

The solution may be java.lang.String.format("%" + maxlength + "s", string).trim(), like this:

int maxlength = 20;
String longString = "Any string you want which length is greather than 'maxlength'";
String shortString = "Anything short";
String resultForLong = java.lang.String.format("%" + maxlength + "s", longString).trim();
String resultForShort = java.lang.String.format("%" + maxlength + "s", shortString).trim();
System.out.println(resultForLong);
System.out.println(resultForShort);

ouput:

Any string you want w

Anything short

To join all lines into a string and remove new lines, I normally use :

with open('t.txt') as f:
  s = " ".join([l.rstrip() for l in f]) 

If you use Lomdok libraray (https://projectlombok.org/) then add @Data (https://projectlombok.org/features/Data) annotation to your data object class.

I was having the same problem with the AND() breaking the conditional formatting. I just happened to try treating the AND as multiplication, and it works! Remove the AND() function and just multiply your arguments. Excel will treat the booleans as 1 for true and 0 for false. I just tested this formula and it seems to work.

=(INDIRECT(ADDRESS(4,COLUMN()))>=INDIRECT(ADDRESS(ROW(),4)))*(INDIRECT(ADDRESS(4,COLUMN()))<=INDIRECT(ADDRESS(ROW(),5)))

I've been thinking over this and experimenting with height of the elements: html, body and div. Finally I came up with the code:

<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
<meta charset="utf-8" />_x000D_
<title>Height question</title>_x000D_
<style>_x000D_
 html {height: 50%; border: solid red 3px; }_x000D_
 body {height: 70vh; border: solid green 3px; padding: 12pt; }_x000D_
 div {height: 90vh; border: solid blue 3px; padding: 24pt; }_x000D_
 _x000D_
</style>_x000D_
</head>_x000D_
<body>_x000D_
_x000D_
 <div id="container">_x000D_
  <p>&lt;html&gt; is red</p>_x000D_
  <p>&lt;body&gt; is green</p>_x000D_
  <p>&lt;div&gt; is blue</p>_x000D_
 </div>_x000D_
_x000D_
</body>_x000D_
</html>

With my browser (Firefox 65@mint 64), all three elements are of 1) different height, 2) every one is longer, than the previous (html is 50%, body is 70vh, and div 90vh). I also checked the styles without the height with respect to the html and body tags. Worked fine, too.

About CSS units: w3schools: CSS units

A note about the viewport: " Viewport = the browser window size. If the viewport is 50cm wide, 1vw = 0.5cm."

echo "discreet";history -d $(history 1)

Another to answer this question available here answered by @nilesh https://stackoverflow.com/a/19934852/2079692

public void setAttributeValue(WebElement elem, String value){
    JavascriptExecutor js = (JavascriptExecutor) driver;
    js.executeScript("arguments[0].setAttribute(arguments[1],arguments[2])",
        elem, "value", value
    );
}

this takes advantage of selenium findElementBy function where xpath can be used also.

Just becuase your class object has no variables does not mean that it is nothing. Declaring and object and creating an object are two different things. Look and see if you are setting/creating the object.

Take for instance the dictionary object - just because it contains no variables does not mean it has not been created.

Sub test()

Dim dict As Object
Set dict = CreateObject("scripting.dictionary")

If Not dict Is Nothing Then
    MsgBox "Dict is something!"  '<--- This shows
Else
    MsgBox "Dict is nothing!"
End If

End Sub

However if you declare an object but never create it, it's nothing.

Sub test()

Dim temp As Object

If Not temp Is Nothing Then
    MsgBox "Temp is something!"
Else
    MsgBox "Temp is nothing!" '<---- This shows
End If

End Sub

yourTextView.setTextColor(color);

Or, in your case: yourTextView.setTextColor(0xffbdbdbd);

In Linux:

java -version

In Windows:

java.exe -version

If you need more info about the JVM you can call the executable with the parameter -XshowSettings:properties. It will show a lot of System Properties. These properties can also be accessed by means of the static method System.getProperty(String) in a Java class. As example this is an excerpt of some of the properties that can be obtained:

$ java -XshowSettings:properties -version
[...]
java.specification.version = 1.7
java.vendor = Oracle Corporation
java.vendor.url = http://java.oracle.com/
java.vendor.url.bug = http://bugreport.sun.com/bugreport/
java.version = 1.7.0_95
[...]

So if you need to access any of these properties from Java code you can use:

System.getProperty("java.specification.version");
System.getProperty("java.vendor");
System.getProperty("java.vendor.url");
System.getProperty("java.version");

Take into account that sometimes the vendor is not exposed as clear as Oracle or IBM. For example,

$ java version
"1.6.0_22" Java(TM) SE Runtime Environment (build 1.6.0_22-b04) Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode, sharing)

HotSpot is what Oracle calls their implementation of the JVM. Check this list if the vendor does not seem to be shown with -version.

Simply, your question sounded wrong because the JavaScript variables need to be echoed.

<?php_x000D_
        $num = 1;_x000D_
        echo $num;_x000D_
        echo "<input type='button' value='Click' onclick='readmore()' />";_x000D_
     echo "<script> function readmore() { document.write('";_x000D_
        $num = 2;_x000D_
        echo $num;_x000D_
        echo "'); } </script>";_x000D_
?>

I've been in this (Twitter) industry for a long time and witnessed lots of changes in Twitter API and documentation. I would like to clarify one thing to you. There is no way to surpass 3200 tweets limit. Twitter doesn't provide this data even in its new premium API.

The only way someone can surpass this limit is by saving the tweets of an individual Twitter user.

There are tools available which claim to have a wide database and provide more than 3200 tweets. Few of them are followersanalysis.com, keyhole.co which I know of.

In MonoDroid here's how (c#)

/// <summary>
/// Graphics support for resizing images
/// </summary>
public static class Graphics
{
    public static Bitmap ScaleDownBitmap(Bitmap originalImage, float maxImageSize, bool filter)
    {
        float ratio = Math.Min((float)maxImageSize / originalImage.Width, (float)maxImageSize / originalImage.Height);
        int width = (int)Math.Round(ratio * (float)originalImage.Width);
        int height =(int) Math.Round(ratio * (float)originalImage.Height);

        Bitmap newBitmap = Bitmap.CreateScaledBitmap(originalImage, width, height, filter);
        return newBitmap;
    }

    public static Bitmap ScaleBitmap(Bitmap originalImage, int wantedWidth, int wantedHeight)
    {
        Bitmap output = Bitmap.CreateBitmap(wantedWidth, wantedHeight, Bitmap.Config.Argb8888);
        Canvas canvas = new Canvas(output);
        Matrix m = new Matrix();
        m.SetScale((float)wantedWidth / originalImage.Width, (float)wantedHeight / originalImage.Height);
        canvas.DrawBitmap(originalImage, m, new Paint());
        return output;
    }

}

using fn_my_permissions

EXECUTE AS USER = 'userName';
SELECT * FROM fn_my_permissions(NULL, 'DATABASE') 

Either

SELECT IF(field1 IS NULL or field1 = '', 'empty', field1) as field1 from tablename

or

SELECT case when field1 IS NULL or field1 = ''
        then 'empty'
        else field1
   end as field1 from tablename

As the name suggests 'untracked files' are the files which are not being tracked by git. They are not in your staging area, and were not part of any previous commits. If you want them to be versioned (or to be managed by git) you can do so by telling 'git' by using 'git add'. Check this chapter Recording Changes to the Repository in the Progit book which uses a nice visual to provide a good explanation about recording changes to git repo and also explaining the terms 'tracked' and 'untracked'.

And why not to use this ?

SELECT model, date FROM doc ORDER BY date DESC LIMIT 1

If every input asks the same question, you should use a for loop and an array of inputs:

Scanner dd = new Scanner(System.in);
int[] vars = new int[3];

for(int i = 0; i < vars.length; i++) {
  System.out.println("Enter next var: ");
  vars[i] = dd.nextInt();
}

Or as Chip suggested, you can parse the input from one line:

Scanner in = new Scanner(System.in);
int[] vars = new int[3];

System.out.println("Enter "+vars.length+" vars: ");
for(int i = 0; i < vars.length; i++)
  vars[i] = in.nextInt();

You were on the right track, and what you did works. This is just a nicer and more flexible way of doing things.

If you want the whole query string:

$_SERVER["QUERY_STRING"]

Another JS solution, that is easy and can be used to avoid a non-easy CSS-only or extra markup / hacky solution.

function minHeight(elm, percent) {
  var windowHeight = isNaN(window.innerHeight) ? 
                     window.clientHeight : window.innerHeight;
  var height = windowHeight * percent / 100;
  elm.style.minHeight = height + 'px';
}

W/ jQuery :

function minHeight($elm, percent) {
  var windowHeight = $(window).height();
  var height = windowHeight * percent / 100;
  $elm.css('min-height', height + 'px');
}

Angular directive :

myModule.directive('minHeight', ['$window', function($window) {
  return {
    restrict: 'A',
    link: function(scope, elm, attrs) {
      var windowHeight = isNaN($window.innerHeight) ? 
               $window.clientHeight : $window.innerHeight;
      var height = windowHeight * attrs.minHeight / 100;
      elm.css('min-height', height + 'px');
    }
  };
}]);

To be used like this :

<div>
  <!-- height auto here -->
  <div min-height="100">
    <!-- This guy is at least 100% of window height but grows if needed -->
  </div>
</div>

You could use printf instead:

printf "hello\nworld\n"

printf has more consistent behavior than echo. The behavior of echo varies greatly between different versions.

This worked for me within an ASP.NET site. To enable validation on some hidden fields use this code

$("form").data("validator").settings.ignore = ":hidden:not(#myitem)";

To enable validation for all elements of form use this one $("form").data("validator").settings.ignore = "";

Note that use them within $(document).ready(function() { })

You can use AJAX for that. Whenever you scan a barcode, your scanner will act as if it is a keyboard typing into your input type="text" components. With JavaScript, capture the corresponding event, and send HTTP REQUEST and process responses accordingly.

$("input[type='checkbox']:not(:checked):not('\#chkAll\')").map(function () { 
   var a = ""; 
   if (this.name != "chkAll") { 
      a = this.name + "|off"; 
   } 
   return a; 
}).get().join();

This will retrieve all unchecked checkboxes and exclude the "chkAll" checkbox that I use to check|uncheck all checkboxes. Since I want to know what value I'm passing to the database I set these to off, since the checkboxes give me a value of on.

//looking for unchecked checkboxes, but don’t include the checkbox all that checks or unchecks all checkboxes
//.map - Pass each element in the current matched set through a function, producing a new jQuery object containing the return values.

//.get - Retrieve the DOM elements matched by the jQuery object.
//.join - (javascript) joins the elements of an array into a string, and returns the string.The elements will be separated by a specified separator. The default separator is comma (,).

Try uninstalling the pg gem (gem uninstall pg) then reinstalling -- if you use bundler, then bundle install, else gem install pg. Also, make sure path picks up the right version: Lion has a version of posgresql (prior versions didn't) and it may be in the path before your locally installed version (e.g. MacPorts, homebrew).

In my case: homebrew install of postgresql, updated postgresql, rails, etc. and then got this error. Uninstalling and reinstalling the pg gem did it for me.

I know this is literally a year later, but I figured I'd share. I was trying to do the same thing and came across this solution that worked for me. We set a max width for the entire table, then worked with the cell sizes for the desired effect.

Put the table in its own div, then set the width, min-width, and/or max-width of the div as desired for the entire table. Then, you can work and set width and min-widths for other cells, and max width for the div effectively working around and backwards to achieve the max width we wanted.

#tablediv {
    width:90%;
    min-width:800px
    max-width:1500px;
}

.tdleft {
    width:20%;
    min-width:200px;
}

<div id="tablediv">
  <table width="100%" border="1">
    <tr>
      <td class="tdleft">Test</td>
      <td>A long string blah blah blah</td>
    </tr>
  </table>
</div>

Admittedly, this does not give you a "max" width of a cell per se, but it does allow some control that might work in-lieu of such an option. Not sure if it will work for your needs. I know it worked for our situation where we want the navigation side in the page to scale up and down to a point but for all the wide screens these days.

David Heffernan explained the issue in his answer, and I wrote the improved code. See below.

A generic function

We can write a useful variadic function to concatenate any number of strings:

#include <stdlib.h>       // calloc
#include <stdarg.h>       // va_*
#include <string.h>       // strlen, strcpy

char* concat(int count, ...)
{
    va_list ap;
    int i;

    // Find required length to store merged string
    int len = 1; // room for NULL
    va_start(ap, count);
    for(i=0 ; i<count ; i++)
        len += strlen(va_arg(ap, char*));
    va_end(ap);

    // Allocate memory to concat strings
    char *merged = calloc(sizeof(char),len);
    int null_pos = 0;

    // Actually concatenate strings
    va_start(ap, count);
    for(i=0 ; i<count ; i++)
    {
        char *s = va_arg(ap, char*);
        strcpy(merged+null_pos, s);
        null_pos += strlen(s);
    }
    va_end(ap);

    return merged;
}

Usage

#include <stdio.h>        // printf

void println(char *line)
{
    printf("%s\n", line);
}

int main(int argc, char* argv[])
{
    char *str;

    str = concat(0);             println(str); free(str);
    str = concat(1,"a");         println(str); free(str);
    str = concat(2,"a","b");     println(str); free(str);
    str = concat(3,"a","b","c"); println(str); free(str);

    return 0;
}

Output:

  // Empty line
a
ab
abc

Clean-up

Note that you should free up the allocated memory when it becomes unneeded to avoid memory leaks:

char *str = concat(2,"a","b");
println(str);
free(str);

MVC defaults to DenyGet to protect you against a very specific attack involving JSON requests to improve the liklihood that the implications of allowing HTTP GET exposure are considered in advance of allowing them to occur.

This is opposed to afterwards when it might be too late.

Note: If your action method does not return sensitive data, then it should be safe to allow the get.

Further reading from my Wrox ASP.NET MVC3 book

By default, the ASP.NET MVC framework does not allow you to respond to an HTTP GET request with a JSON payload. If you need to send JSON in response to a GET, you'll need to explicitly allow the behavior by using JsonRequestBehavior.AllowGet as the second parameter to the Json method. However, there is a chance a malicious user can gain access to the JSON payload through a process known as JSON Hijacking. You do not want to return sensitive information using JSON in a GET request. For more details, see Phil's post at http://haacked.com/archive/2009/06/24/json-hijacking.aspx/ or this SO post.

Haack, Phil (2011). Professional ASP.NET MVC 3 (Wrox Programmer to Programmer) (Kindle Locations 6014-6020). Wrox. Kindle Edition.

Related StackOverflow question

With most recents browsers (starting with Firefox 21, Chrome 27, or IE 10), this is no more a vulnerability.

I would recommend not to use HTTP authentication with custom scheme names. If you feel that you have something of generic use, you can define a new scheme, though. See http://greenbytes.de/tech/webdav/draft-ietf-httpbis-p7-auth-latest.html#rfc.section.2.3 for details.

You could also use a LEFT JOIN and IS NULL condition:

SELECT 
  mac, 
  creation_date 
FROM 
  logs
    LEFT JOIN consols ON logs.mac = consols.mac
WHERE 
  logs_type_id=11
AND
  consols.mac IS NULL;

An index on the "mac" columns might improve performance.

Use the ToString() method - standard and custom numeric format strings. Have a look at the MSDN article How to: Pad a Number with Leading Zeros.

string text = no.ToString("0000");

run sbt console then type sbtVersion to check sbt version, and scalaVersion for scala version

You can just use the View.setId(integer) for this. In the XML, even though you're setting a String id, this gets converted into an integer. Due to this, you can use any (positive) Integer for the Views you add programmatically.

According to View documentation

The identifier does not have to be unique in this view's hierarchy. The identifier should be a positive number.

So you can use any positive integer you like, but in this case there can be some views with equivalent id's. If you want to search for some view in hierarchy calling to setTag with some key objects may be handy.

Credits to this answer.

Elements() will only check direct children - which in the first case is the root element, in the second case children of the root element, hence you get a match in the second case. If you just want any matching descendant use Descendants() instead:

var query = from c in xmlFile.Descendants("Band") select c;

Also I would suggest you re-structure your Xml: The band name should be an attribute or element value, not the element name itself - this makes querying (and schema validation for that matter) much harder, i.e. something like this:

<Band>
  <BandProperties Name ="Doors" ID="222" started="1968" />
  <Description>regular Band<![CDATA[lalala]]></Description>
  <Last>1</Last>
  <Salary>2</Salary>
</Band>

And if you are using python 3.X, you may apply the sorted function on the mylist. This is just an addition to the answer that @Sven Marnach has given above.

# using *sort method*
mylist.sort(lambda x: x[1]) 

# using *sorted function*
sorted(mylist, key = lambda x: x[1]) 

Another alternative is to use DATE() function on the left hand operand as shown below

SELECT users.* FROM users WHERE DATE(created_at) BETWEEN '2011-12-01' AND '2011-12-06'

This acronym might help you to remember the ASP.NET life cycle stages which I wrote about in the below blog post.

R-SIL-VP-RU

1. Request
2. Start
3. Initialization
4. Load
5. Validation
6. Post back handling
7. Rendering
8. Unload

From my blog: Understand ASP.NET Page life cycle and remember stages in easy way
18 May 2014

If you just want a theme with no action bar you can use 'NoActionBar' variant, for eg. if your base theme is as below

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

then you can use

<style name="AppThemeNoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

But if you want to retain the properties of your main theme i.e. AppTheme you can do as below

<style name="AppThemeNoActionBar" parent="AppTheme">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style>

You can retain all the properties of your base theme this way and don't have to explicitly add them in your NoActionBar theme :)

Chrome and Safari has a restriction on using ajax with local resources. That's why it's throwing an error like

Origin null is not allowed by Access-Control-Allow-Origin.

Solution: Use firefox or upload your data to a temporary server. If you still want to use Chrome, start it with the below option;

--allow-file-access-from-files

More info how to add the above parameter to your Chrome: Right click the Chrome icon on your task bar, right click the Google Chrome on the pop-up window and click properties and add the above parameter inside the Target textbox under Shortcut tab. It will like as below;

C:\Users\XXX_USER\AppData\Local\Google\Chrome\Application\chrome.exe --allow-file-access-from-files

Hope this will help!

You can have it go to the same page without specifying the url:

window.open('?','_self');

char* str = "HELLO";
char c = str[1];

Keep in mind that arrays and strings in C begin indexing at 0 rather than 1, so "H" is str[0], "E" is str[1], the first "L" is str[2] and so on.

Others have answered your question perfectly, but I just thought I would throw out another way. It's always a good idea to separate HTML markup, CSS styling, and javascript code when possible. The cleanest way to hide something, with that in mind, is using a class. It allows the definition of "hide" to be defined in the CSS where it belongs. Using this method, you could later decide you want the ul to hide by scrolling up or fading away using CSS transition, all without changing your HTML or code. This is longer, but I feel it's a better overall solution.

Demo: http://jsfiddle.net/ThinkingStiff/RkQCF/

HTML:

<a id="showTags" href="#" title="Show Tags">Show All Tags</a>
<ul id="subforms" class="subforums hide"><li>one</li><li>two</li><li>three</li></ul>

CSS:

#subforms {
    overflow-x: visible; 
    overflow-y: visible;
}

.hide {
    display: none; 
}

Script:

document.getElementById( 'showTags' ).addEventListener( 'click', function () {
    document.getElementById( 'subforms' ).toggleClass( 'hide' );
}, false );

Element.prototype.toggleClass = function ( className ) {
    if( this.className.split( ' ' ).indexOf( className ) == -1 ) {
        this.className = ( this.className + ' ' + className ).trim();
    } else {
        this.className = this.className.replace( new RegExp( '(\\s|^)' + className + '(\\s|$)' ), ' ' ).trim();
    };
};

You can use the following command: jar xf rt.jar

Where X stands for extraction and the f would be any options that indicate that the JAR file from which files are to be extracted is specified on the command line, rather than through stdin.

You can use a list comprehension:

>>> s = 'hi'
>>> [ord(c) for c in s]
[104, 105]

It's an old trick, but I still find the easiest way to do this is to use outline-offset with a negative value (example below uses -6px). Here's a fiddle of it—I've made the outer border red and the outline white to differentiate the two:

.outline-offset {
width:300px;
height:200px;
background:#333c4b;
border:2px solid red;
outline:2px #fff solid;
outline-offset:-6px;
}

<div class="outline-offset"></div>

maybe you want to take a look java.util.Stack class. it has push, pop methods. and implemented List interface.

for shift/unshift, you can reference @Jon's answer.

however, something of ArrayList you may want to care about , arrayList is not synchronized. but Stack is. (sub-class of Vector). If you have thread-safe requirement, Stack may be better than ArrayList.

(Tested on Oracle 11g)

About AS:

• When used on result column, AS is optional.
• When used on table name, AS shouldn't be added, otherwise it's an error.

About double quote:

• It's optional & valid for both result column & table name.

e.g

-- 'AS' is optional for result column
select (1+1) as result from dual;
select (1+1) result from dual;


-- 'AS' shouldn't be used for table name
select 'hi' from dual d;


-- Adding double quotes for alias name is optional, but valid for both result column & table name,
select (1+1) as "result" from dual;
select (1+1) "result" from dual;

select 'hi' from dual "d";

Do everything suggested by ziesemer.

You may also want to remove from the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\<any Ora* drivers> keys     

HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\ODBC Drivers<any Ora* driver> values

So they no longer appear in the "ODBC Drivers that are installed on your system" in ODBC Data Source Administrator

Possible and easiest one-line solution is to use:

file_get_contents("YOUR_REQUESTED_FILE");

Or equivavelt for example CURL.

EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax.

You can use string formatting like this:

>>> print '%5s' % 'aa'
   aa
>>> print '%5s' % 'aaa'
  aaa
>>> print '%5s' % 'aaaa'
 aaaa
>>> print '%5s' % 'aaaaa'
aaaaa

Basically:

• the % character informs python it will have to substitute something to a token
• the s character informs python the token will be a string
• the 5 (or whatever number you wish) informs python to pad the string with spaces up to 5 characters.

In your specific case a possible implementation could look like:

>>> dict_ = {'a': 1, 'ab': 1, 'abc': 1}
>>> for item in dict_.items():
...     print 'value %3s - num of occurances = %d' % item # %d is the token of integers
... 
value   a - num of occurances = 1
value  ab - num of occurances = 1
value abc - num of occurances = 1

SIDE NOTE: Just wondered if you are aware of the existence of the itertools module. For example you could obtain a list of all your combinations in one line with:

>>> [''.join(perm) for i in range(1, len(s)) for perm in it.permutations(s, i)]
['a', 'b', 'c', 'd', 'ab', 'ac', 'ad', 'ba', 'bc', 'bd', 'ca', 'cb', 'cd', 'da', 'db', 'dc', 'abc', 'abd', 'acb', 'acd', 'adb', 'adc', 'bac', 'bad', 'bca', 'bcd', 'bda', 'bdc', 'cab', 'cad', 'cba', 'cbd', 'cda', 'cdb', 'dab', 'dac', 'dba', 'dbc', 'dca', 'dcb']

and you could get the number of occurrences by using combinations in conjunction with count().

I used this to achieve it. They fade on hover but take no space when hidden, perfect!

.child {
    height: 0px;
    opacity: 0;
    visibility: hidden;
    transition: all .5s ease-in-out;
}

.parent:hover .child {
    height: auto;
    opacity: 1;
    visibility: visible;
}

You can also start a server without python using php interpreter.

E.g:

cd /your/path/to/website/root
php -S localhost:8000

This can be useful if you want an alternative to npm, as php utility comes preinstalled on some OS' (including Mac).

This should get you started

 <div class="menuBar">
        <img class="logo" src="logo.jpg"/>
        <div class="nav"> 
            <ul>
                <li>Menu1</li>
                <li>Menu 2</li>
                <li>Menu 3</li>
            </ul> 
        </div>
    </div>



body{
    margin-top:50px;}
.menuBar{
    width:100%;
    height:50px;
    display:block;
    position:absolute;
    top:0;
    left:0;
    }
.logo{
    float:left;
    }
.nav{
    float:right;
    margin-right:10px;}
.nav ul li{
    list-style:none;
    float:left;
    }

You can use RawGit:
https://rawgit.com/necolas/css3-social-signin-buttons/master/index.html

It works better (at the time of this writing) than http://htmlpreview.github.com/, serving files with proper Content-Type headers. Additionally, it also provides CDN URL for use in production.

For the least lines of code and the simplest case

if(s.equals(new StringBuilder(s).reverse().toString())) // is a palindrome.

try this code worked for me

SELECT user_display_image AS user_image,
       user_display_name AS user_name,
       invitee_phone,
       (CASE WHEN invitee_status = 1 THEN "attending"
             WHEN invitee_status = 2 THEN "unsure"
             WHEN invitee_status = 3 THEN "declined"
             WHEN invitee_status = 0 THEN "notreviwed"
       END) AS invitee_status
  FROM your_table

This topic shows up on the first page of my google result, so here's a little useful tip for new comers.

You could also dump the sql and gzip it in one line:

mysqldump -u [username] -p[password] [database_name] | gzip > [filename.sql.gz]

SIMPLIEST WAY TO HANDLE TIMEOUT LOOP

function myFunc (terminator = false) {
    if(terminator) {
        clearTimeout(timeOutVar);
    } else {
        // do something
        timeOutVar = setTimeout(function(){myFunc();}, 1000);
    }
}   
myFunc(true); //  -> start loop
myFunc(false); //  -> end loop

How host name verification should be done is defined in RFC 6125, which is quite recent and generalises the practice to all protocols, and replaces RFC 2818, which was specific to HTTPS. (I'm not even sure Java 7 uses RFC 6125, which might be too recent for this.)

From RFC 2818 (Section 3.1):

If a subjectAltName extension of type dNSName is present, that MUST be used as the identity. Otherwise, the (most specific) Common Name field in the Subject field of the certificate MUST be used. Although the use of the Common Name is existing practice, it is deprecated and Certification Authorities are encouraged to use the dNSName instead.

[...]

In some cases, the URI is specified as an IP address rather than a hostname. In this case, the iPAddress subjectAltName must be present in the certificate and must exactly match the IP in the URI.

Essentially, the specific problem you have comes from the fact that you're using IP addresses in your CN and not a host name. Some browsers might work because not all tools follow this specification strictly, in particular because "most specific" in RFC 2818 isn't clearly defined (see discussions in RFC 6215).

If you're using keytool, as of Java 7, keytool has an option to include a Subject Alternative Name (see the table in the documentation for -ext): you could use -ext san=dns:www.example.com or -ext san=ip:10.0.0.1.

EDIT:

You can request a SAN in OpenSSL by changing openssl.cnf (it will pick the copy in the current directory if you don't want to edit the global configuration, as far as I remember, or you can choose an explicit location using the OPENSSL_CONF environment variable).

Set the following options (find the appropriate sections within brackets first):

[req]
req_extensions = v3_req

[ v3_req ]
subjectAltName=IP:10.0.0.1
# or subjectAltName=DNS:www.example.com

There's also a nice trick to use an environment variable for this (rather in than fixing it in a configuration file) here: http://www.crsr.net/Notes/SSL.html

You need to go for a loop:

for (int i = 0; i < sizeof(foo) / sizeof(float); ++i)
   printf("%f", foo[i]);
printf("\n");

http://www.sqlite.org/lang_altertable.html

As you can see in the diagram, only ADD COLUMN is supported. There is a (kinda heavy) workaround, though: http://www.sqlite.org/faq.html#q11

Supopose you want to copy oldList into a new ArrayList object called newList

ArrayList<Object> newList = new ArrayList<>() ;

for (int i = 0 ; i<oldList.size();i++){
    newList.add(oldList.get(i)) ;
}

These two lists are indepedant, changes to one are not reflected to the other one.

When you get the error: implicit declaration of function it should also list the offending function. Often this error happens because of a forgotten or missing header file, so at the shell prompt you can type man 2 functionname and look at the SYNOPSIS section at the top, as this section will list any header files that need to be included. Or try http://linux.die.net/man/ This is the online man pages they are hyperlinked and easy to search. Functions are often defined in the header files, including any required header files is often the answer. Like cnicutar said,

You are using a function for which the compiler has not seen a declaration ("prototype") yet.

'Make the excel file that runs the software the active workbook
ThisWorkbook.Activate

'The first sheet used as a temporary place to hold the data 
ThisWorkbook.Worksheets(1).Cells.Copy

'Create a new Excel workbook
Dim NewCaseFile As Workbook
Dim strFileName As String

Set NewCaseFile = Workbooks.Add
With NewCaseFile
    Sheets(1).Select
    Cells(1, 1).Select
End With

ActiveSheet.Paste

How about dropping the entire database and then creating it again? This works for me.

DROP DATABASE mydb;
CREATE DATABASE mydb;

A great way is to use set_exception_handler.

Warning!!! with PHP 7, you might get a white screen of death for fatal errors. For example, if you call a method on a non-object you would normally get Fatal error: Call to a member function your_method() on null and you would expect to see this if error reporting is on.

The above error will NOT be caught with catch(Exception $e). The above error will NOT trigger any custom error handler set by set_error_handler.

You must use catch(Error $e){ } to catch errors in PHP7. . This could help:

class ErrorHandler{
    public static function excep_handler($e)
    {
        print_r($e);
    }
}
set_exception_handler(array('ErrorHandler','excep_handler'));

the best solution here

class Category(var Id: Int,var Name: String)
arrayList is Category list
val selectedPositon=arrayList.map { x->x.Id }.indexOf(Category_Id)
spinner_update_categories.setSelection(selectedPositon)

There seems to be a few details left out of your explanation, but I will do my best...

If these are NUL-terminated strings or the memory is pre-zeroed, you can just iterate down the length of the memory segment until you hit a NUL (0) character or the maximum length (whichever comes first). Use the string constructor, passing the buffer and the size determined in the previous step.

string retrieveString( char* buf, int max ) {

    size_t len = 0;
    while( (len < max) && (buf[ len ] != '\0') ) {
        len++;
    }

    return string( buf, len );

}

If the above is not the case, I'm not sure how you determine where a string ends.

The goal can be achieved by using IFs indirectly.

Below is an example of a complex expression that can be written quite concisely and logically in a CMD batch, without incoherent labels and GOTOs.

Code blocks between () brackets are handled by CMD as a (pathetic) kind of subshell. Whatever exit code comes out of a block will be used to determine the true/false value the block plays in a larger boolean expression. Arbitrarily large boolean expressions can be built with these code blocks.

Simple example

Each block is resolved to true (i.e. ERRORLEVEL = 0 after the last statement in the block has executed) / false, until the value of the whole expression has been determined or control jumps out (e.g. via GOTO):

 ((DIR c:\xsgdde /w) || (DIR c:\ /w)) && (ECHO -=BINGO=-)

Complex example

This solves the problem raised initially. Multiple statements are possible in each block but in the || || || expression it's preferable to be concise so that it's as readable as possible. ^ is an escape char in CMD batches and when placed at the end of a line it will escape the EOL and instruct CMD to continue reading the current batch of statements on the next line.

@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION

(
    (CALL :ProcedureType1 a b) ^
        || (CALL :ProcedureType2 sgd) ^
            || (CALL :ProcedureType1 c c)
) ^
    && (
        ECHO -=BINGO=-
        GOTO :EOF
    )
ECHO -=no bingo for you=-
GOTO :EOF

:ProcedureType1
    IF "%~1" == "%~2" (EXIT /B 0) ELSE (EXIT /B 1)
GOTO :EOF (this line is decorative as it's never reached)

:ProcedureType2
    ECHO :ax:xa:xx:aa:|FINDSTR /I /L /C:":%~1:">nul
GOTO :EOF