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Organize imports in eclipse java

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I'm working on a JUnit project on eclipse , please help me to organize imports ,because im using checkList plugin. I tried source +organize imports also , I tried Control+Shift +o , but both of them did not work . can you help .

To enable this, go to Windows -> Preferences -> Java -> Editor -> Save Actions and then enable Perform the selected action on save -> Organize imports. After this, whenever you save a java file, eclipse will remove the unused imports automatically.
Little googling might help

To fix this issue:
Go to Preferences -> General -> Keys Click on Filters... and de-select Filter uncategorized commands then Ok.
Then look for the command Go To Symbol in File and select it. Then click on Unbind and then Apply and Close
Ctrl+Shift+O. should now work.
Note:
Also unbind any other conflicting commands and leave only one command for Ctrl+Shift+O and set the When to Editing Java Source.

How do I disable 'Convert Java to Kotlin upon paste' in IntelliJ IDEA?

When IntelliJ IDEA detects I'm pasting a piece of copied Java code into a Kotlin file, it offers me to convert the pasted Java to Kotlin. This dialog contains a 'Do not ask again next time checkbox'. I checked this box and selected 'Yes', but now I want to undo my default choice. How do I do this?
I've looked and searched in IntelliJ IDEA's preferences, but haven't found the respective checkbox. Is it actually in the settings, or can I somehow reset default checkbox selections?

Preferences -> Editor -> General -> Smart Keys and somewhere down below you should find your checkbox (took me a while to find this, phew)

Netbeans Javadoc auto-displaying

I am working on an xml file inside of Netbeans and something changed in my settings where when I open up a bracket, it turns the bracket red and displays the Javadoc in addition to the code-completion tool.
I like the code-completion but not the javadoc. Does someone know how to turn it off the Javadoc?

I found out the answer:
In Netbeans, go Tools -> Options -> Code Completion -> uncheck "Auto Popup Documentation Window"
I'm still not sure what keyboard shortcut I hit to enable it in the first place, but this turned it off.

Folding (collapse/expand) codes in Intellij (How does it look like Eclipse?)

I got to InteliJ from Eclipse. So, I am programming in Java (for Android) in InteliJ now.
I have problems with FOLDING (collapse/expand) style in IntelliJ.
This is a sample of code folding in Eclipse (and I love it) :
and This is code folding in Intellij (or Android Studio) and I hate it :
Is it possible to convert code folding style in InteliJ to Eclipse? (Eclipse folding is my target)
I want to hide #Override or any annotations from all methods in IntelliJ
I want to hide folded symbol {...} or move it in method name line in IntelliJ
Like this :
(in following picture, I removed #Override manually. so,I've moved to manually bracket { to the method name line.
)
Update 1 :
I tried to solve my problem in (Intellij) File -> Settings... -> Editor -> Code Folding , but I could not solve.

For Android Studio:
File --> Settings --> Editor --> General --> Code Folding
From that section you can select the way you want to fold your methods and inner classes etc.
Hope this helps.

You can change it by changing code formatter style.
For Mac :
Eclipse -> Preference -> Java -> Code Style -> Formatter -> Edit
For Window :
Window -> Preference -> Java -> Code Style -> Formatter -> Edit
Please check below links for more details.
http://www.wikihow.com/Change-the-Default-Format-Settings-in-Eclipse

Open Eclipse.
Click on the top tool bar and then click on Preferences.
On the left side of the box, expand Java option, expand Code Style, and click Formatter.
The active profile must be set to Eclipse[built-in], you cannot edit this setting, so make a new one by clicking the New... button.
Enter your new profile name and click OK.
You will now be presented with the "Profile 'name you set'"box.
There are 8 tabs: Indentation, Braces, White Space, Blank Line, New lines, Control statements, Line wrapping, Comments.
Click on each tab and make the changes. Dont forget to click Apply.
Now to format the current document, click on Source from the menu bar, click Format or press Ctrl+Shift+F.
Job well done. =)

There is no Run menu or toolbar button in Eclipse Juno

I'm trying to follow the Android Development Tutorial - this page: http://developer.android.com/training/basics/firstapp/running-app.html
I am stuck - I cannot run the application. The instructions say "Open one of your project's files and click Run from the toolbar." However, there is no "Run" button on the toolbar, and there is no obvious option to choose from the "Run" dropdown on the menubar (see screenshot below).
Further down on that page, the instructions say "In Eclipse, click Android Virtual Device Manager from the toolbar." That button is also not there!
Am I missing something really obvious? I am on the Java perspective, and I have tried "Window -> Reset Perspective", but I am unable to run the application.
Any help would be appreciated.
EDIT: Under Window -> Customize Perspective -> Menu Visibility, I only have this - ticking Run unfortunately doesn't add anything - nor does ticking Launch under "Toolbar Visibility", when I try that I get the error Launch cannot be made visible because it is in the unavailable null command group. Would you like to switch to the Command Group Availability tab?.

You can add it like Window -> CustomizePerspective -> Menu Visibility -> Run -> Ok
or still can run your project by
Right clicking on your project which you want to run from the project explorer and select Run as and then Android application....T daaa...
If still the problem is there check
The "Run As -> Android Application" is no longer an option in my Eclipse Run Configuration
"Run as" android application is missing

Window -> Customize Perspective -> Toolbar Visibility -> tick Launch -> Press ok

Window -- > Open Perspective --> Java

If the entire toolbar is missing then you can use
Window -> Appearance -> Show Toolbar

Don't modified BuildConfig.java file,that file is generate by android sdk.
You can download android Tutorial video help youself improve.