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How Can I reverse - Engineer a .class file to a .java file?
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Todd Schmiedeke
Greenhorn
Joined: May 10, 2005
Posts: 5
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posted
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I would like to take an existing .jar file and revert it back to its original state to view the code in the .java files.
1. How do I unjar a .jar file?
2. How do I get a compiled file (.class) back to a .java file?
Thanks
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Marco Davids II
Greenhorn
Joined: Nov 02, 2004
Posts: 24
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there is a quite a number of decompilers for java class file
just google for Java decompiler
a jar file is just a compressed file which can be decompressed using Winzip or any other similar software
Hope that helps
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Robynn Harrington
Greenhorn
Joined: Jun 08, 2005
Posts: 4
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Todd- please call me... I can't find your number.
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Preetham Chandrasekhar
Ranch Hand
Joined: Nov 05, 2003
Posts: 98
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Jad is supposed to be a good decompiler....pretty straight-forward as well.
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"In theory, there is no difference between theory and practice. But, in practice, there is."<br /> - Jan L.A. van de Snepscheut
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Jeff Langr
author
Ranch Hand
Joined: May 14, 2003
Posts: 758
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Under Windows, you should be able to open a JAR file using WinZip. I usually associate the .JAR extension to WinZip.
Or at the command line (assuming you have your JRE bin in your path):
jar xvf file.jar
Enter "jar" to see the full list of options.
-Jeff-
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Author, Agile Java, Essential Java Style. Agile in a Flash. Contributor, Clean Code.
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subject: How Can I reverse - Engineer a .class file to a .java file?
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