Update: https://codexplo.wordpress.com/2013/03/22/how-to-decompile-android-apk-to-java-source-code-2/
It’s very often you guys wanted to see the source but you don’t have the source code, but the byte code. Java decompiler is such thing, it can decompile your .class file to .java file. I think it something very interesting.
I tried a lot to find a good decompiler in java. I couldn’t find anything that can provide cent percent accuracy. But now I use JD Compiler, I think, it serves maximum level accuracy.
JD Decompiler : http://java.decompiler.free.fr/?q=jdeclipse
Get it now, I think, you’ll enjoy it.
It has two versions, eclipse plugin, which one is very handy and another JD-GUI standalone java decompiler.
JD Eclipse
JD-GUI
Code Explosion 
New Java decompiler – AndroChef Java Decompiler is available at: http://www.neshkov.com/ac_decompiler.html
AndroChef stalls on null pointer exception with big jar files, not recommended
do you know what is the new URL for JD-eclipse
The main JD Eclipse site is currently offline. I have released a companion plugin which you can find details about here: http://mchr3k-coding.blogspot.co.uk/2012/07/realignment-for-jd-eclipse.html
My update site hosts a copy of JD Eclipse along with my plugin.
Magnificent web site. Lots of useful information here.
I’m sending it to several buddies ans additionally sharing in delicious. And obviously, thanks on your effort!
this cmd is deprecated, use the d2j-dex2jar if possible
dex2jar version: translator-0.0.9.15
dex2jar Facebook.Messenger.1.0.apk -> Facebook.Messenger.1.0_dex2jar.jar
Done.
what can i do ? plz help me ?
Use this one: https://codexplo.wordpress.com/2013/03/22/how-to-decompile-android-apk-to-java-source-code-2/
Thanks for your response !!!!!!!!!!!!!!!!!
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now file extracting like this ?
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\>dex2jar-0.0.9.15\d2j-dex2jar.bat gibberbot-latest.apk
dex2jar gibberbot-latest.apk -> gibberbot-latest-dex2jar.jar
java.io.FileNotFoundException: File ‘gibberbot-latest.apk’ does not exist
at org.apache.commons.io.FileUtils.openInputStream(FileUtils.java:56)
at org.apache.commons.io.FileUtils.readFileToByteArray(FileUtils.java:40
)
at com.googlecode.dex2jar.reader.DexFileReader.(DexFileReader.java
:240)
at com.googlecode.dex2jar.tools.Dex2jarCmd.doCommandLine(Dex2jarCmd.java
:104)
at com.googlecode.dex2jar.tools.BaseCmd.doMain(BaseCmd.java:174)
at com.googlecode.dex2jar.tools.Dex2jarCmd.main(Dex2jarCmd.java:34)
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