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ImaginaryForce

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Decompile a .jar file

hi,
any one plz tell me How to decompile a .jar file & also how to use DEBUG COMMAND in .jar file (wat does it mean DEBUG COMMAND in .jar file)
thanxx in advance
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CEHJ
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Please tell us what you are trying to do. Jar files cannot be 'decompiled'. They can be unpacked...
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girionis
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 Unpack the jar file as CEHJ suggested by using: jar -xvf <jar file name>

  Use one of the following decompilers to decompile the classes:

http://aolca.com.com/3000-2417-10146169.html?tag=list (only windows)
http://www.geocities.com/zz_xu/jad.html (several OS)
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maheshexp
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vogtcha

The easiest solution is to use JODE (http://jode.sourceforge.net/download.php)
It will generate java src files and packages from the JAR file.

Just add the jode jar file (usually jode-1.1.jar) to your classpath

Then in a command line, run

 java jode.decompiler.Main --dest srcdir <your_jar_file.jar>

You can also download DJ Decompiler from http://members.fortunecity.com/neshkov/dj.html.

It is not as good a decompiler as JODE and you can only use it on a Win32 platform, but it is easier
to use than Jode since it uses a GUI.

Good luck