How to decompile jar file?
Windows
Amy.LI
1. Download jad.exe from
2. Download jad eclipse pluginnet.sf.jadclipse_3.3.0.jar from http://sourceforge.net/projects/jadclipse/
3. Put net.sf.jadclipse_3.3.0.jar into plugins folder of your eclipse
4.Restart eclipse and do setting
1)Window -> Preferences -> Java -> JadClipsein eclipse
Set <path to decompiler>the path of jad.exe you download in step 1
2)Window -> Preferences -> General -> Editors -> File Associations
Select *.class without source in filetypes
Then click Add button of Associated editors,set JadClipse Class File Viewer todefault
5.Then you can add jar file you want to see to a new project, project ->properties -> java build path –> add external jars
6.You can find jar under project -> referenced library, open .jar file andclick .class file, you can see the source codes now.
Reference:http://www.jscto.net/html/69704.html