`Settings` | `Editor` | `General` |`Code Completion` | `Autopopup documentation in (ms)`.

[![Settings screenshot][1]][1]

**UPDATE**: latest versions have an [option to show JavaDoc on mouse move][2].


  [1]: http://i.stack.imgur.com/rBRSP.jpg
  [2]: https://stackoverflow.com/a/11053374/104891

File -&gt; Settings -&gt; Editor -&gt; Code completion.

Check *Autopopup documentation in (ms)* and choose delay.

Show Javadoc in IntelliJ IDEA 14:

- When you write code:

	`File -&gt; Settings -&gt; Editor -&gt; General -&gt; Code Completion -&gt; Autopopup documentation in (ms)`

It&#39;s only available when you press &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;SPACE&lt;/kbd&gt; It&#39;s more usable if you select the pin icon when it popups. The documentation window will be added to the tabs on the right. Later on I recommend to resize the window and to uncheck the `Pinned` property.

- On mouse hover:

	`File -&gt; Settings -&gt; Editor -&gt; General -&gt; Show quick documentation on mouse move`

I have an image in a HTML page:

    &lt;img src=&quot;smiley.gif&quot; alt=&quot;Smiley face&quot; width=&quot;32&quot; height=&quot;32&quot; /&gt;

If the image is not found on the server it shows an ugly blank square.

I want to make it so that if an image is not found it will display nothing or some other default image that I know is definitely on the server.

How can this be done?

HTML if image is not found

Dependent method types, which used to be an experimental feature before, has now been [enabled by default in the trunk][1], and apparently this seems to have created [some excitement][2] in the Scala community. 

At first look, it&#39;s not immediately obvious what this could be useful for. Heiko Seeberger posted a simple example of dependent method types [here][3], which as can be seen in the comment there can easily be reproduced with type parameters on methods. So that wasn&#39;t a very compelling example. (I might be missing something obvious. Please correct me if so.)

What are some practical and useful examples of use cases for dependent method types where they are clearly advantageous over the alternatives? 

What interesting things can we do with them that weren&#39;t possible/easy before? 

What do they buy us over the existing type system features?

Also, are dependent method types analogous to or drawing inspiration from any features found in the type systems of other advanced typed languages such as Haskell, OCaml?


  [1]: https://lampsvn.epfl.ch/trac/scala/changeset/25859
  [2]: http://twitter.com/#!/milessabin/status/127160650249154560
  [3]: https://gist.github.com/1303276#comments

What are some compelling use cases for dependent method types?

When I am coding at Netbeans it autocompletes the code and show Javadocs. However when I am using Intellij IDEA if I click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Space&lt;/kbd&gt;** I can see the auto-complete and if I click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Q&lt;/kbd&gt;** I can see the javadoc seperately.

Is it possible to see the Javadoc of element whenever I see auto-complete or click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Space&lt;/kbd&gt;** at Intellij IDEA as like Netbeans?

Intellij IDEA show javadoc automatically

When I am coding at Netbeans it autocompletes the code and show Javadocs. However when I am using Intellij IDEA if I click <kbd>Ctrl</kbd>+<kbd>Space</kbd> I can see the auto-complete and if I click <kbd>Ctrl</kbd>+<kbd>Q</kbd> I can see the javadoc seperately.
Is it possible to see the Javadoc of element whenever I see auto-complete or click <kbd>Ctrl</kbd>+<kbd>Space</kbd> at Intellij IDEA as like Netbeans?

I am using google autocomplete places javascript to return suggested results for my searchbox , what I need is to only show the city and the country related to the characters entered but google api will give a lot of general places results which I dont need , so how to limit the result to show only city and the country .

I am using the following Example:

    &lt;html&gt;
    &lt;head&gt;
    &lt;style type=&quot;text/css&quot;&gt;
       body {
             font-family: sans-serif;
             font-size: 14px;
       }
    &lt;/style&gt;

    &lt;title&gt;Google Maps JavaScript API v3 Example: Places Autocomplete&lt;/title&gt;
    &lt;script src=&quot;http://maps.googleapis.com/maps/api/js?sensor=false&amp;amp;libraries=places&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
    &lt;script type=&quot;text/javascript&quot;&gt;
       function initialize() {
          var input = document.getElementById(&#39;searchTextField&#39;);
          var autocomplete = new google.maps.places.Autocomplete(input);
       }
       google.maps.event.addDomListener(window, &#39;load&#39;, initialize);
    &lt;/script&gt;

    &lt;/head&gt;
    &lt;body&gt;
       &lt;div&gt;
          &lt;input id=&quot;searchTextField&quot; type=&quot;text&quot; size=&quot;50&quot; placeholder=&quot;Enter a location&quot; autocomplete=&quot;on&quot;&gt;
       &lt;/div&gt;
    &lt;/body&gt;
    &lt;/html&gt;

How to limit google autocomplete results to City and Country only

In Linux, and many other systems, when navigating the terminal you can press &lt;kbd&gt;Tab&lt;/kbd&gt; to auto complete a directory or file name.

I&#39;m wondering if there is anything like that in the MySQL terminal. For example, if I want to get the description of `someTableWithRidiculousLongName` I could type `describe someTableW` then &lt;kbd&gt;Tab&lt;/kbd&gt; and it would auto-complete the rest.

Does anything like that exist in the MySQL terminal?


Autocompletion in the MySQL command-line client

I have a pretty simple form.  When the user types in an input field, I want to update what they&#39;ve typed somewhere else on the page.  This all works fine.  I&#39;ve bound the update to the `keyup`, `change` and `click` events.

The only problem is if you select an input from the browser&#39;s autocomplete box, it does not update.  Is there any event that triggers when you select from autocomplete (it&#39;s apparently neither `change` nor `click`).  Note that if you select from the autocomplete box and the *blur* the input field, the update will be triggered.  I would like for it to be triggered as soon as the autocomplete .

See: http://jsfiddle.net/pYKKp/ (hopefully you have filled out a lot of forms in the past with an input named &quot;email&quot;).

### HTML: 
 
    &lt;input name=&quot;email&quot; /&gt; 
    &lt;div id=&quot;whatever&quot;&gt;&amp;lt;whatever&gt;&lt;/div&gt; 
 
### CSS:  
 
    div { 
        float: right; 
    } 
 
### Script: 
 
    $(&quot;input&quot;).on(&#39;keyup change click&#39;, function () { 
       var v = $(this).val(); 
        if (v) { 
         $(&quot;#whatever&quot;).text(v);   
        }  
        else { 
            $(&quot;#whatever&quot;).text(&#39;&lt;whatever&gt;&#39;); 
        } 
    }); 

Any event triggered on autocomplete?

I have a `textbox` in a form field that gets populated by the user.  However currently (in Firefox 10) the user can navigate away from the page, then come back, and the input will be populated with its previous value.  I think this creates for a confusing user experience, and would like to prevent it.

Is there a way to do this without manually resetting the value?  I have tried changing the response to not cache as well as setting `autocomplete=&#39;false&#39;` with no luck.

How to prevent browser from caching form fields?

I&#39;m trying to find a way to use jQuery autocomplete with callback source getting data via an ajax json object list from the server.

Could anybody give some directions?

I googled it but couldn&#39;t find a complete solution.

jQuery autocomplete with callback ajax json

In Intellij, if I have an error in a source file, then when building I can choose `&quot;Exclude from Compile&quot;` by right-clicking on the file in the build output.
But, now I would like to include the file again.  Where is the menu item that lets me put it back into the build?  (The file shows in the Project window, and has a small `&#39;x&#39;` in its icon to show it is excluded, but I see no way to get this to go away.)

Edit - I found there is a `compiler.xml` file, and I found I can delete the file from the `&quot;excludeFromCompile&quot;` section, but still, there must be a menu item somewhere to do this.

reinclude excluded file in Intellij

I primarily use Visual Studio and ReSharper (R#) for development and have excellent working knowledge of R#. I want to leverage that knowledge in IntelliJ IDEA (with my personal Java adventures) without having to learn the IDEA keymap scheme. IDEA has a Visual Studio keymap but that mainly updates such key bindings as Find (Ctrl + F) and Replace (Ctrl + H) etc. Because Visual Studio doesn&#39;t have built-in capabilities like &quot;Inspect This...&quot; etc. (the kinda stuff provided by R#), those IntelliJ keybinding in Visual Studio keymap are merely a dump of IDEA&#39;s.

In VS.NET, ReSharper comes with two keymaps, IDEA and Visual Studio. I&#39;ve been using the Visual Studio keymap since R# 5 and really would like to have a keymap in IntelliJ idea that actually is a combination of the Visual Studio IDEA keymap and R# Visual Studio keymap. This combinational keymap is what I am calling Visual Studio ReSharper (R#) keymap for IntelliJ IDEA.

I&#39;d appreciate if someone can share thier keymap if they have created one that&#39;s close to the stated description. If JetBrains is hearing, how about bundling an additional keymap scheme with IntelliJ that&#39;s essentially a combination of Visual Studio scheme (in IntelliJ IDEA) and ReSharper Visual Studio scheme (in VS.NET)?

Visual Studio ReSharper Keymap for IntelliJ IDEA

How can I configure IntelliJ to capture the standard output of the application to a file, but still display it in the standard console window?

Configure IntelliJ to print the standard output in the console window but also save it to file

Is there a way to open up a directory in PHPStorm or an equivalent Jetbrains IDE from the command line? For example, in Textmate, I would just do:

    mate .

to open the working directory.

How to open a directory in PHPStorm or IntelliJ (or any JetBrains IDE) from the command line?

I created a project, it asked me to select JDK version and finish.

I couldn&#39;t find `system` namespace in autocomplete.

I typed it manually but IDEA told me that `system` doesn&#39;t exist.

Can&#39;t find system.out.println()

In OpenJDK, for the method:

    public static Double valueOf(double d)

The javadoc says:

&gt; Returns a Double instance representing the specified double value. If a new Double instance is not required, this method should generally be used in preference to the constructor Double(double), as this method is likely to yield significantly better space and time performance by caching frequently requested values.

Here&#39;s the actual code:

    public static Double valueOf(double d) {
        return new Double(d);
    }

The cache is a lie!  What&#39;s going on here?

Why does the Double.valueof javadoc say it caches values, when it doesn&#39;t?

The shortcut for this action is Shift+F1 but it is always grayed out even though I have pointed JDK `documentation path` to the `docs` folder (the docs folder is unzipped from [jdk-7u2-apidocs.zip][1] ).  
Thanks


  [1]: http://www.oracle.com/technetwork/java/javase/documentation/java-se-7-doc-download-435117.html

How to view JDK external documentation in IntelliJ IDEA?

I would like to have the javadoc comments contained in a jar file show in eclipse when I hover over a class.

For example, after downloading JODA-2.0, three jars are obtained:

- joda-time-2.0
- joda-time-2.0-javadoc
- joda-time-2.0-sources
(http://sourceforge.net/projects/joda-time/files/joda-time/2.0/joda-time-2.0-dist.zip/download)

In eclipse, [right click project -&gt; Properties -&gt; Java Build Path -&gt; Libraries -&gt; ADD JARs...] includes the binary in the project (can reference those classes) for joda-time-2.0.jar.


But how can I link in the sources/javadoc comments contained in the other two jar files so that when I hover over those classes I see the javadocs?

Adding the other two jars (joda-time-2.0-javadoc.jar and joda-time-2.0-sources.jar) to the build path does not link the javadocs or the source.

Eclipse how to link a jar containing javadocs/source with its binary?

Presently I&#39;m working with JavaFX. Whenever I hover over a method of JavaFX its gives me the following error: 

`&#39;Note: This element neither has attached source nor attached Javadoc and hence no Javadoc could be found&#39;`

How should I resolve this? How can I attach the javadoc or source so that I could see the description of the methods?

How to attach source or JavaDoc in eclipse for any jar file e.g. JavaFX?

New version of ADT r17 plugin for Eclipse added feature to automatically setup JAR dependencies. Any .jar files in the /libs folder are added to the build configuration now. Unfortunately Android Dependencies classpath container is non modifiable.

![Non modifiable android dependencies classpath][1]

How can i attach javadoc and sources to the automatically inserted .jar (from /libs folder)?


  [1]: http://i.stack.imgur.com/gXsaM.png

Content Type	Original Author	Original Content on Stackoverflow
Question	kamaci	View Question on Stackoverflow
Solution 1 - Autocomplete	CrazyCoder	View Answer on Stackoverflow
Solution 2 - Autocomplete	Tomasz Nurkiewicz	View Answer on Stackoverflow
Solution 3 - Autocomplete	Tonatio	View Answer on Stackoverflow

Intellij IDEA show javadoc automatically

Autocomplete Problem Overview

Autocomplete Solutions

Solution 1 - Autocomplete

Solution 2 - Autocomplete

Solution 3 - Autocomplete

What are some compelling use cases for dependent method types?

HTML if image is not found

Attributions