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Extracting .java files from .class files

 
Meghna Prasad
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Hi
If I have a jar file x.jar which has y & z classes, how do I extract y.java file from x.jar file ? What is the procedure for this ?
Thanks
Meghna
 
Joe Gilvary
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Get the class files out of the jar
jar xf x.jar y.class
jar xf x.jar z.class
Disassemble the class files. If you do not
have a particualar product, use javap from
the JDK.
If you hope to see the code for some class
that you bought, you may find that it has been
obfuscated, i.e. method and variable names changed
to make the disassembled code very confusing.
HTH,
Joe
 
Nathan Pruett
Bartender
Posts: 4121
IntelliJ IDE Java Spring
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This doesn't really belong in the Swing/JFC/AWT forum ( even if you're trying to decompile code that uses these classes... ) So I'm moving it to Java In General (Intermediate).

-Nate

P.S. - Check out DJ Java Decompiler. It uses JAD, is put together well, and has an easy to understand GUI...
 
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