Open `.eclipseproduct` in the product installation folder. Or open `Configuration\config.ini` and check property `eclipse.buildId` if exist.

`Help -&gt; About Eclipse Platform`

For Eclipse Mars - you can check `Eclipse -&gt; About Eclipse` or `Help -&gt; Installation Details`, then you should see the version:

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/chJDj.png

Go to `Help -&gt; About Eclipse Sdk` 

![enter image description here][1]

![enter image description here][2]


  [1]: http://i.stack.imgur.com/3vON3.png
  [2]: http://i.stack.imgur.com/t2MYR.png

Go to the folder in which eclipse is installed then open readme folder followed by the readme txt file. Here you will find all the info you need.

I believe you can find out Eclipse Platform version for every software product that is Eclipse-based.

 1. Open **Installation Details**: 
  - Go to Help =&gt; About =&gt; Installation Details.
  - Or to Help =&gt; Install New Software... =&gt; click **What is already installed?** link.

 2. Choose **Plug-ins** tab =&gt; type *org.eclipse.platform* =&gt; check **Version** column.

 3. You can match version code and version name on https://wiki.eclipse.org/Older_Versions_Of_Eclipse

For example, check out GitEye (Git GUI client)
[![GitEye Installation Details][1]][1]


Or  checkout DBBeaver (DB manager):

[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/v4LQb.png
  [2]: https://i.stack.imgur.com/MWiGm.png

Same issue i was getting , but When we open our eclipse software then automatically we can see eclipse version and workspace location like these pic below 
[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/LAL5R.png

Now that macros are gone from Visual Studio 2012, what is the best way to automatically trim trailing whitespace whenever a file is saved?

I&#39;m aware that *Format Document* (&lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;K&lt;/kbd&gt;, &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;D&lt;/kbd&gt;) will do this, but it presumably changes the file in other ways, and it&#39;s not automatic either.

The motivation is given here:

*[Trailing whitespace is evil. Don&#39;t commit evil into your repo][1]*

  [1]: http://codeimpossible.com/2012/04/02/trailing-whitespace-is-evil-don-t-commit-evil-into-your-repo/


How can I trim trailing whitespace in Visual Studio 2012 on save?

I&#39;ve been trying to fix this crash for almost a week. The application crashes without any exception or stack-trace. The application does not crash in any way while running through instruments in zombie mode.

I have a method that gets called on a different thread.
The solution that fixed the crash was replacing

    [self.mutableArray removeAllObjects];

with 

    dispatch_async(dispatch_get_main_queue(), ^{
        [self.searchResult removeAllObjects];
    });

I thought it might be a timing issue, so I tried to synchronize it, but it still crashed:

    @synchronized(self)
    {
        [self.searchResult removeAllObjects];
    }

Here is the code

    - (void)populateItems
    {
       // Cancel if already exists	
       [self.searchThread cancel];
    	
       self.searchThread = [[NSThread alloc] initWithTarget:self
                                                   selector:@selector(populateItemsinBackground)
                                                     object:nil];
    	
        [self.searchThread start];
    }
    
    
    - (void)populateItemsinBackground
    {
        @autoreleasepool
        {
            if ([[NSThread currentThread] isCancelled])
    	        [NSThread exit];
    
            [self.mutableArray removeAllObjects];
    
            // Populate data here into mutable array
    
            for (loop here)
            {
                if ([[NSThread currentThread] isCancelled])
    	            [NSThread exit];
    
                // Add items to mutableArray
            }
        }
    }

Is this problem with NSMutableArray not being thread-safe?


Is Objective-C&#39;s NSMutableArray thread-safe?

How do I find out which version of Eclipse is currently installed on my system?

How to see my Eclipse version?

<p>How do I find out which version of Eclipse is currently installed on my system?</p>


Specifically, why would it help to fix a PermGen OutOfMemoryError issue?

Also, bonus points for an answer that points me to the documentation on JVM arguments...

What does -XX:MaxPermSize do?

VisualVM has two separate tabs for sampling and profiling. What is the difference between sampling and profiling in VisualVM?

Difference between sampling and profiling in jVisualVM

When I rotate my screen, the WebView reloads the whole page. I can&#39;t have this since some of my content contains dynamic/random material. Currently when rotated the screen reloads the original URL from the loadUrl() method. 

Any idea what&#39;s wrong with my code? 

***MainActivity.java***


    package com.mark.myapp;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.util.Log;
    import android.view.KeyEvent;
    import android.view.Menu;
    import android.webkit.WebView;
    import android.webkit.WebViewClient;
    
    public class MainActivity extends Activity {
    
    	WebView web;
    	String webURL = &quot;http://www.google.co.uk/&quot;;
    	
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            
            if (savedInstanceState != null)
                ((WebView)findViewById(R.id.web)).restoreState(savedInstanceState);
            
            web = (WebView) findViewById(R.id.web);
            web.getSettings().setJavaScriptEnabled(true);
            web.loadUrl(webURL);
            web.setPadding(0, 0, 0, 0);
            web.getSettings().setLoadWithOverviewMode(true);
            web.getSettings().setUseWideViewPort(true);
            web.getSettings().setSupportZoom(true);
            web.getSettings().setBuiltInZoomControls(true);
            
            web.setWebViewClient(new HelloWebViewClient());
        }
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            getMenuInflater().inflate(R.menu.activity_main, menu);
            return true;
        }
        
        private class HelloWebViewClient extends WebViewClient {
        	public boolean shouldOverrideUrlLoading(WebView web, String url) {
        		web.loadUrl(url);
        		return true;
        	}
        }
        
        public boolean onKeyDown(int keyCode, KeyEvent event) {
        	if ((keyCode == KeyEvent.KEYCODE_BACK) &amp;&amp; web.canGoBack()) {
        		web.goBack();
        		return true;
        	}
        	return super.onKeyDown(keyCode, event);
        }
        
    }

***AndroidManifest.xml***

    &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        package=&quot;com.mark.myapp&quot;
        android:versionCode=&quot;1&quot;
        android:versionName=&quot;1.0&quot; &gt;
    
        &lt;uses-sdk
            android:minSdkVersion=&quot;8&quot;
            android:targetSdkVersion=&quot;15&quot; /&gt;
    
        &lt;application
            android:icon=&quot;@drawable/ic_launcher&quot;
            android:label=&quot;@string/app_name&quot;
            android:theme=&quot;@style/AppTheme&quot; &gt;
            &lt;activity
                android:name=&quot;.MainActivity&quot;
               
              	android:configChanges=&quot;orientation|keyboardHidden&quot;&gt;
                &lt;intent-filter&gt;
                    &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;
    
                    &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
                &lt;/intent-filter&gt;
            &lt;/activity&gt;
        &lt;/application&gt;
    	&lt;uses-permission android:name=&quot;android.permission.INTERNET&quot;/&gt;
    &lt;/manifest&gt;

Android - Preventing WebView reload on Rotate

I make this call to a static singleton instance from the class `GameManager.java`.

    HUD.getInstance().update(timeDelta);

`HUD.java` contains the `HUD` class as well as two other related classes, `HUDTextElement` and `HUDElement`. All the classes are in the same root path `../src/org/mypackage`.

However, when compiling this project in IntelliJ I get **cannot find Symbol HUD** on the line I make the `HUD.getInstance()` call.

This exact same code compiles just fine in Eclipse, any idea what the problem is?

Getting &quot;cannot find Symbol&quot; in Java project in IntelliJ

I have the Android SDK installed on both a Linux machine using open SuSE 12.1. I&#39;ve used both machines to successfully build Android apps many times and sign them both with a debug key for testing and a release key from my own keystore, so it should be somewhere on each machine.

Using the command

    jarsigner

Returns a command not found error on both machines, however. I&#39;ve looked in the Android SDK folder, JDK folder on Windows, and /usr/lib64/jvm/ but it&#39;s not anywhere I&#39;ve looked.

I assume it must be under a different name. I&#39;ve also run:

     find -name jarsigner

over the whole system on the Linux box with no success.

Where is jarsigner?

Is there an Eclipse plugin available for JavaScript that allows for syntax checking and autosuggestions for .js files in Eclipse?

JavaScript Editor Plugin for Eclipse

Recently, I switched from [Visual Studio][1] to [Eclipse][2]. Now I am missing the shortcut for navigating to the last cursor position in Eclipse. In Visual Studio, the same can be done with the help of the &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;-&lt;/kbd&gt; shortcut. 

How do I do this in Eclipse?

  [1]: http://en.wikipedia.org/wiki/Microsoft_Visual_Studio
  [2]: http://en.wikipedia.org/wiki/Eclipse_%28software%29


How to navigate to the last cursor position in Eclipse?

Is there any shortcut for maximizing the tab you are working on in Eclipse? Assume I am working on part of a code and I want to maximize the tab not using the double click on it with the mouse, does anyone know a way? 

Maximize code tab in eclipse shortcut

Eclipse was running fine yesterday (and has been since I installed it about a year ago). Now all the sudden I&#39;m getting the following error on startup:

    &quot;A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following locations:
    C:\Program Files\eclipse\jre\bin\javaw.exe
    javaw.exe in your current PATH&quot;

I have not changed anyhing Eclipse/Java related on my machine but a Windows update was applied to my machine yesterday, so maybe that has something to do with it (but I don&#39;t see anything that would affect Java). I&#39;ve looked at all the other posts about adding something to your PATH or adding the -vm option to the Eclipse ini (couldn&#39;t get this to work) or copying the jre folder to eclipse\jre (this worked but doesn&#39;t seem like a good long term solution). So I&#39;m really trying to figure out how to get things back to the &quot;default&quot; setup without messing stuff up.

I&#39;m running `Windows 7, Eclipse Helios and Java 1.6.0_26.`

eclipse won&#39;t start - no java virtual machine was found

I have been using Eclipse for Android (most up to date version), for a while with no problems with the Logcat. For an unknown reason, Logcat is no longer retaining the debug messages. Logcat is getting cleared in about 5 seconds . Is there any way to prevent the auto-clearing of Logcat messages? Otherwise I am unable to read the messages. 

Eclipse Android - Logcat Clearing too Fast

I&#39;m using eclipse checkstyle plugin with Juno Eclipse distribution. Anytime the code is checked for checkstyle error I get the following error: 

    cannot initialize module TreeWalker - Unable to instantiate DoubleCheckedLocking

Does anybody know how to fix this problem? Is it a plugin compatibility issue or something else?

Checkstyle Eclipse plugin doesn&#39;t work

I am an old IntelliJ user, now working on a project that requires Eclipse.
I don&#39;t mind learning the Eclipse default keyboard shortcuts where they exist, but so many operations don&#39;t have shortcuts assigned (grrrr!)

I was wondering if there is any plugin that would automatically assign the IntelliJ defaults to any action that does not already have a mapping?

As an alternative I guess I could also use a plugin that just wipes out all of the Eclipse defaults and replaces them with the IntelliJ versions.

Or do I have to just go and manually replace them all one by one :( ?

Is there an IntelliJ Keymapping plugin for Eclipse?

I have updated my `SDK` and `ADT` to the latest version, I have also update the `Eclipse` to `Kepler` the latest one after `Juno`. 

My `ADT` version is `22.0`. After this update when I create a new project, I&#39;m getting error, stating `R cannot be resolved to a variable`. I have imported `import android.R;`, but it is showing as unused import stating `Don&#39;t include android.R here; use a fully qualified name for each usage instead`. 

Same thing is happening with Mac OS also with the latest update. I have tried renaming `activity_main.xml` to other name, but still my `R.java` is not generated. 

Tried all the things which are possible. Cleaned the project, build the whole workspace. Nothing helping.

I think `ADT` or `Eclipse` compatibility is having problem after the update.


I have updated my whole SDK, here is the screenshot, but same problem is there.

![enter image description here][1]


  [1]: http://i.stack.imgur.com/8s1Uo.png

Eclipse giving error, missing R.java file after recent update

Eclipse shortcut keys are not working suddenly in Windows, Even basic needed shortcut keys also like &#39;ctrl + F&#39; or &#39;crtl + c&#39;. I hope if i restart the eclipse it will resolve, but i can not do, bucause my applications are running in eclipse. I ensured that this happening in eclipse or all windows. But not happening same in notepad++ editor.

It looks wonder but it happening.

Eclipse shortcut keys are not working suddenly in Windows

When I change a setting in a window like in the screenshot below, where are those settings actually stored?

Bonus: Is there any way, using Java, Eclipse RCP etc, to access the settings programmatically?

Thanks!


![Eclipse Preferences][1]


  [1]: http://i.stack.imgur.com/f1bep.jpg

Where does Eclipse store preferences?

I have to develop a plugin for Eclipse but I prefer IntelliJ IDEA as IDE. Is it possible to configure IDEA for Eclipse plugin development?

How to use IntelliJ IDEA for Eclipse plugin development?

I&#39;m working on a 3.8-e4 hybrid (i.e we have the Luna dependencies, but we &lt;b&gt;do not&lt;/b&gt; use the *Application.e4xmi*, yet). So we&#39;re basically running the compact layer.

With that being said, it would be nice to find an e4 programmatic way to stack these nasty views onto the editor folder.

&lt;hr&gt;

&lt;h2&gt;1.) Problem&lt;/h2&gt;

I want to place a generic view folder in the editor area, so that each view which is opened at runtime will be opened there. 

![View in editor folder][1]

&lt;i&gt;(pic stolen from [this question][2])&lt;/i&gt;

&lt;hr&gt;

&lt;h2&gt;2.1) Possible fix no.1: Using plugin.xml&lt;/h2&gt;

Create a perspective extension, and add each possible view to that extension, with &lt;b&gt;relationship stack&lt;/b&gt; over &lt;b&gt;relative org.eclipse.ui.editorss&lt;/b&gt;. This is a bit inconvenient if you have too many views awating to be opened, and if the project scales quickly. I also noticed that wildcard view IDs do not work here.

![SS of the plugin.xml with perspective extensions][3]

If you find yourself the time to add each possible view to the perspective extension, that would work. Although, IF you open a view which is not added here (ie: opens in a different folder), then each subsequent opened view will be opened in the previous folder, and NOT in the editor area (inquire further explanation if you don&#39;t get it).

&lt;hr&gt;

&lt;h2&gt;2.2) Possible fix no.2: Using code in the perspective factory&lt;/h2&gt;

In the `IPerspectiveFactory`, we do have access to the `IPageLayout`, which happens to be `org.eclipse.ui.internal.e4.compatibility.ModeledPageLayout` (e4 stuff). 

Now, this `ModeledPageLayout` implementation is reasonable, but also no documentation and weird public APIs. This one gives the possibility to stack a view over any other relative

    modeledPageLayout.stackView(&quot;newView0&quot;, IPageLayout.ID_EDITOR_AREA);

This would be the programmatic version of &lt;b&gt;2.1&lt;/b&gt;. Also, the same problem appears here. If a view is opened somewhere else, the code above becomes useless.

Interesting enough, the `stackView` API does not support wildcards (while others such as `addView` do).

&lt;hr&gt;

&lt;h2&gt;2.3) Possible fix no.3: Workarounds yaaay!&lt;/h2&gt;

I have a lot of perspectives, and a lot of different folders in each one. Everything is precisely placed. 

Since Eclipse offers the APIs to get all the view IDs from everywhere around the system, I want to do the following, per perspective: &lt;b&gt;each view ID which wasn&#39;t added to a specific folder will be appended to the editor area (ie editor folder, editor stack)&lt;/b&gt;. 

This would be my last resort, unless someone offers a more convenient and timesaving solution.

Remember, an e4 programmatic alternative is more flexible!

&lt;hr&gt;

&lt;h2&gt;3.) Related questions&lt;/h2&gt;

- https://stackoverflow.com/questions/21382848/eclipse-rcp-open-view-in-editor-folder
- https://stackoverflow.com/questions/2758642/eclipse-rcp-stacking-a-view-with-the-editor-area
- https://stackoverflow.com/questions/22921306/custom-eclipse-perspective-with-initially-invisble-view-stacked-to-editor-area
- [Google question, Lars answer][4]

These would be rendered deprecated for the e4 release.

&lt;hr&gt;

&lt;h2&gt;4.) Related Bug on Eclipse&#39;s Bugzilla:&lt;/h2&gt;

[This recent bug opened by myself][5] has an attachment with a small SSCCE. The steps to reproduce this are described in [this comment][6], so I&#39;m not going to copy-paste them here.


  [1]: http://i.stack.imgur.com/zHcn8.png
  [2]: https://stackoverflow.com/questions/2758642/eclipse-rcp-stacking-a-view-with-the-editor-area
  [3]: http://i.stack.imgur.com/veJDE.png
  [4]: https://groups.google.com/forum/#!topic/vogella/_2yEZMg8epk
  [5]: https://bugs.eclipse.org/bugs/show_bug.cgi?id=450854
  [6]: https://bugs.eclipse.org/bugs/show_bug.cgi?id=450854#c2

Eclipse RCP - Open a View in the Editor Area (3.8/e4 hybrid)

EDIT: It turns out this really isn&#39;t specific to Eclipse Kepler. I had to use the same process for Eclipse Juno. The problem was that there seem to be missing steps in other posts answering this same question.

I&#39;m using Eclipse Kepler for C++ and I&#39;m trying to use C++11 and getting errors. When I compile I get the error

error: range-based-for loops are not allowed in C++98 mode

I&#39;ve followed the instructions from the post

https://stackoverflow.com/questions/9131763/eclipse-cdt-c11-c0x-support

and the solution given for Eclipse Juno isn&#39;t working. 

Different comments have suggested restarting eclipse and cleaning and rebuilding. That hasn&#39;t made a difference.

How to enable C++11 in Eclipse Juno/Kepler/Luna CDT?

When I use eclipse and see my name in the javadocs as the author, I also find the spellchecker marking my name as it does not understand that it is a proper name. Thus, I get the option of:

`Add {word} to dictionary`

but when I click on it, It says the user dictionary is missing and asks if I would like to create a new one. When I say yes, it just shows the spell checking preferences with a blank user dictionary field where I have the option to only add an existing user dictionary and no option to create a new one.

How do I create the user dictionary so that I can configure it for use in eclipse?

Content Type	Original Author	Original Content on Stackoverflow
Question	vin-zhao	View Question on Stackoverflow
Solution 1 - Java	Roman C	View Answer on Stackoverflow
Solution 2 - Java	Alexis C.	View Answer on Stackoverflow
Solution 3 - Java	Chirag	View Answer on Stackoverflow
Solution 4 - Java	Harry	View Answer on Stackoverflow
Solution 5 - Java	pratt	View Answer on Stackoverflow
Solution 6 - Java	Shubham Sharma	View Answer on Stackoverflow

How to see my Eclipse version?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

Solution 3 - Java

Solution 4 - Java

Solution 5 - Java

Solution 6 - Java

Is Objective-C's NSMutableArray thread-safe?

How can I trim trailing whitespace in Visual Studio 2012 on save?

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