Import the project as a java project.  Then in the &#39;Project Structure&#39; box, click on the module and click the + sign.  This allows you to add, e.g., a Python &quot;facet&quot; to the module.  I use this frequently to develop mixed Java/Python modules.  

I don&#39;t think there is a way of doing that.

You&#39;ll probably have to import the maven project and then add the rest of the folders, yourself, configure the correct plugins, etc.

At least that&#39;s what I do in a couple of projects where I have Java and Python source files in the mix. 

Sometimes, it works even better to simply define different modules for the different types of &quot;sub-project&quot;, especially when it&#39;s a whole different language and you happen to need to setup a compiler etc, I&#39;ve ran into some problems with IntelliJ not recognizing my Python modules correctly when I mixed them up in a Java project. All went well when I created a separate module.

I need to support major modern browsers only (IE10+, FF, Chrome, Safari)

Can I make this substitution as I want to simplify my code base:

**From:**

    xhr.onreadystatechange = function () {
        if (this.readyState === 4) {
            if (this.status === 200) {
                o.callback(xhr.responseText);
            } else {
                return false;
            }
        } else {
            return false;
        }
    };

**To:**

    xhr.onload = function (test) {
        o.callback(xhr.responseText);
    };

I don&#39;t feel that the [MDN documentation][1] is clear in this regard.

**Clarification:**

I choose not to use a framework.

  [1]: https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest

Can one replace xhr.onreadystatechange with xhr.onload for AJAX calls?

Just a post to help those guys trying to do that, since I don&#39;t have a blog.

This works for linux too. Feel free to edit it and improve it.

How to compile Qt 5 under Windows or Linux, 32 or 64 bit, static or dynamic on Visual Studio or g++

Is there a way to open/import an IntelliJ IDEA project which contains different language source files? For example I have Java (Maven) + HTML + JavaScript and, unfortunately,  I&#39;m able to import only the Maven project. Is there a way to open/import the entire project as a single whole?

Thanks in advance!

How to set up a multi-language project in IntelliJ IDEA

<p>Is there a way to open/import an IntelliJ IDEA project which contains different language source files? For example I have Java (Maven) + HTML + JavaScript and, unfortunately,  I'm able to import only the Maven project. Is there a way to open/import the entire project as a single whole?</p>
<p>Thanks in advance!</p>


I have the following code setting a variable in my controller:

    model.set(&quot;type&quot;, type);

In the thymeleaf view I want to construct a form with action url:

    /mycontroller/{type}

Any ideas how to achieve this? I&#39;ve read thymeleaf documentation with no luck.

Thymeleaf construct URL with variable

Is there a way to convert a String containing json to a HashMap, where every key is a json-key and the value is the value of the json-key? The json has no nested values. I am using the Gson lib.

For example, given JSON:

    {
    &quot;id&quot;:3,
    &quot;location&quot;:&quot;NewYork&quot;
    }
    
resulting HashMap:

    &lt;&quot;id&quot;, &quot;3&quot;&gt;
    &lt;&quot;location&quot;, &quot;NewYork&quot;&gt;

Thanks

Gson to HashMap

I have been asked this question in a job interview and I have been wondering about the right answer.

&gt; You have an array of numbers from 0 to n-1, one of the numbers is removed, and replaced with a number already in the array which makes a duplicate of that number. How can we detect this duplicate in time *O(n)*?

For example, an array of `4,1,2,3` would become `4,1,2,2`.

The easy solution of time *O(n&lt;sup&gt;2&lt;/sup&gt;)* is to use a nested loop to look for the duplicate of each element.

Find duplicate element in array in time O(n)

this is a passage from JavaDoc regarding `ConcurrentHashMap`. It says retrieval operations generally do not block, so may overlap with update operations. Does this mean the `get()` method is not thread safe?


&gt; &quot;However, even though all operations are thread-safe, retrieval
&gt; operations do not entail locking, and there is not any support for
&gt; locking the entire table in a way that prevents all access. This class
&gt; is fully interoperable with Hashtable in programs that rely on its
&gt; thread safety but not on its synchronization details.
&gt; 
&gt; Retrieval operations (including get) generally do not block, so may
&gt; overlap with update operations (including put and remove). Retrievals
&gt; reflect the results of the most recently completed update operations
&gt; holding upon their onset.&quot;

Is ConcurrentHashMap totally safe?

Is there an easy way to print the contents of a `Bundle` to Logcat if you can&#39;t remember the names of all the keys (even being able to print just the key names would be cool)?

Print the contents of a Bundle to Logcat?

How to get value from the textarea field when it&#39;s not equal &quot;&quot;.
=
I tried this code, but when I enter text into textarea the alert() isn&#39;t works.
How to fix it?


    &lt;textarea name=&quot;textarea&quot; placeholder=&quot;Enter the text...&quot;&gt;&lt;/textarea&gt;

    $(document).ready(function () {
        if ($(&quot;textarea&quot;).value !== &quot;&quot;) {
            alert($(&quot;textarea&quot;).value);
        }
      
    });

Get value from text area

My page generates a URL like this: `&quot;blob:http%3A//localhost%3A8383/568233a1-8b13-48b3-84d5-cca045ae384f&quot;` How can I convert it to a normal address?

I&#39;m using it as an `&lt;img&gt;`&#39;s `src` attribute.


Convert blob URL to normal URL

I have a watch function in my AngularJS application.

    $scope.$watch(&#39;quartzCrystal&#39;, function () {
       ...
    }

However, after some condition (in my example, changing the page at my [single-page application][1]) I want to stop that watch (as like clearing timeout).

How can I do that?

  [1]: https://en.wikipedia.org/wiki/Single-page_application


AngularJS : Clear $watch

I&#39;ve found some strange behavior: angular trims model values by default. And quick googling doesn&#39;t help me to solve this problem. I&#39;ve found `ng-no-trim` directive proposals, `ng-trim` and so on. But nothing works.

I&#39;ve provided a little snippet that represents this issue below.

&lt;!-- language: lang-javascript --&gt;

    function Ctrl($scope) {
      $scope.text=&#39;&#39;;
      
      $scope.$watch(&#39;text&#39;, function (newValue) {
        console.log(newValue);
      });
    }

Also you could try this snippet [here](http://jsbin.com/ibosub/1/edit).

I&#39;ve added a textarea that is in sync with model `text`. But it doesn&#39;t react for watching when add new trailing spaces or break the line to new one.

What could I do to turn off this behavior? Thanks.

How to disable trimming of inputs in AngularJS?

When both, href and ng-click attributes are defined:

    &lt;a href=&quot;#&quot; ng-click=&quot;logout()&quot;&gt;Sign out&lt;/a&gt;

the `href` attribute takes precedence over ng-click.

I am looking for a way to raise priority of ng-click.

`href` is required for Twitter Bootstrap, I can&#39;t remove it.

href overrides ng-click in Angular.js

The `input type=&quot;color&quot;` has a default color which is black: `#000000`.

Even if I give it an empty value...

`&lt;input type=&quot;color&quot; value=&quot;&quot; /&gt;`

...the default color is always black.

I want the user to have the option of picking a color, but if he doesn&#39;t it means no color was picked, not even white `#FFFFFF`.

Is there a way to force an `input type=&quot;color&quot;` not to have black color as default?

I can use some kind of a &quot;listener&quot; to check if the user changed the color for the first time, if not, ignore the value, but I would like to avoid Javascript.

HTML5 input color&#39;s default color

I am really stoked about the HTML5 date picker.

The caveat is that I don&#39;t see or foresee much in the way of applying colors to the picker itself which is going to make the use of the datepicker kind of a deal-breaker on most sites. The `&lt;select&gt;` suffers from widespread JavaScript-replacement hacks for the simple reason that people can&#39;t make it pretty.

So are there any known styling options for the HTML input of `type=&#39;date&#39;`?

Are there any style options for the HTML5 Date picker?

I want to use a full-height app using flexbox. I found what I want using old flexbox layout module (`display: box;` and other things) in this link: https://stackoverflow.com/questions/9251447/css3-flexbox-full-height-app-and-overflow

This is a correct solution for browsers that only support the old version of the flexbox CSS properties.

If I want to try using the newer flexbox properties, I&#39;ll try to use the second solution in the same link listed as a hack: using a container with `height: 0px;`. It makes to show a vertical scroll.

I don&#39;t like it a lot because it introduces other problems and it is more a workaround than a solution.

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-css --&gt;

    html, body {
        height: 100%;    
    }
    #container {
    	display: flex;
    	flex-direction: column;
    	height: 100%;
    }
    #container article {
    	flex: 1 1 auto;
    	overflow-y: scroll;
    }
    #container header {
        background-color: gray;
    }
    #container footer {
        background-color: gray;
    }

&lt;!-- language: lang-html --&gt;

    &lt;section id=&quot;container&quot; &gt;
        &lt;header id=&quot;header&quot; &gt;This is a header&lt;/header&gt;
        &lt;article id=&quot;content&quot; &gt;
            This is the content that
            &lt;br /&gt;
            With a lot of lines.
            &lt;br /&gt;
            With a lot of lines.
            &lt;br /&gt;
            This is the content that
            &lt;br /&gt;
            With a lot of lines.
            &lt;br /&gt;
            &lt;br /&gt;
            This is the content that
            &lt;br /&gt;
            With a lot of lines.
            &lt;br /&gt;
            &lt;br /&gt;
            This is the content that
            &lt;br /&gt;
            With a lot of lines.
            &lt;br /&gt;
        &lt;/article&gt;
        &lt;footer id=&quot;footer&quot; &gt;This is a footer&lt;/footer&gt;
    &lt;/section&gt;

&lt;!-- end snippet --&gt;

I have prepared a JSFiddle as well with a base example: http://jsfiddle.net/ch7n6/

It is a full-height HTML website and the footer is at the bottom because of the flexbox properties of the content element. I suggest you move the bar between CSS code and result to simulate different height.

How can I combine flexbox and vertical scroll in a full-height app?

Is there any way to set breakpoints on all methods of a given class?

I have a huge (2300 lines) legacy class and I need to set breakpoints on all method calls to understand how this mess works.

Is there any way to set breakpoints on all methods of a class?

I have a project in IntellijIDEA which was created with Maven.  I then specified a set of dependencies and external repositories in the Pom.xml file.

The project builds fine on command line if I do &quot;mvn install&quot;.  When I open any of the code files in the IDE though it says all the classes handled by Maven dependencies aren&#39;t recognized - as it would for a normal project if I never added the required JARs to the build path.

I know in my Eclipse Maven projects (rather than IntelliJ) it usually shows an extra directory on the left which says &quot;Maven Dependencies&quot; and lists the JARs pulled in via maven.  I don&#39;t see that here.  What am I doing wrong?

----------

**Here&#39;s what my screen looks like:**

![IDE Image][1]

  [1]: http://i.stack.imgur.com/SDUGA.png

IntellijIDEA not recognizing classes specified in Maven dependencies

While hunting through some code I came across the arrow operator, what exactly does it do? I thought Java did not have an arrow operator.

    return (Collection&lt;Car&gt;) CollectionUtils.select(listOfCars, (arg0) -&gt; {
            return Car.SEDAN == ((Car)arg0).getStyle();
    });

***Details**: Java 6, Apache Commons Collection, IntelliJ 12* 

***Update/Answer:** It turns out that IntelliJ 12 supports Java 8, which supports lambdas, and is &quot;folding&quot; Predicates and displaying them as lambdas. Below is the &quot;un-folded&quot; code.*

    return (Collection&lt;Car&gt;) CollectionUtils.select(listOfCars, new Predicate() {
        public boolean evaluate(Object arg0) {
            return Car.SEDAN == ((Car)arg0).getStyle();
        }
    });





What does the arrow operator, &#39;-&gt;&#39;, do in Java?

Is there a way by which a shell script can be invoked from IntelliJ Run/Debug configurations?

IntelliJ IDEA: Running a shell script as a Run/Debug Configuration

I&#39;m using IntelliJ 12 and 
It&#39;s putting my member variable annotations on the same line, which i hate! How do I setup the code formatter to keep annotations on separate lines?


thanks!

Content Type	Original Author	Original Content on Stackoverflow
Question	mr.nothing	View Question on Stackoverflow
Solution 1 - Java	seanmcl	View Answer on Stackoverflow
Solution 2 - Java	pcalcao	View Answer on Stackoverflow

How to set up a multi-language project in IntelliJ IDEA

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

How to compile Qt 5 under Windows or Linux, 32 or 64 bit, static or dynamic on Visual Studio or g++

Can one replace xhr.onreadystatechange with xhr.onload for AJAX calls?

Attributions