1. Download the plugins plugin jar package: jadclipse,http://jadclipse.sourceforge.net/wiki/index.php/main_page#download
And put the jar package into Eclipse's plugins.
2. Download the corresponding version of Jad,http://www.varaneckas.com/jad unzip the package and put the Jad.exe into the bin directory of the JDK installation directory.
3. Start eclipse,help-> software Updates/I nstall newsoftware (different versions), Find and Install ... Search Fornew features to install click "Newremote Site ..." Enter http://www.technoetic.com/eclipse/update in the URL bar and then next, you can see "Jodedecompiler plugin", select Install, and then restart as prompted.
4. Check if the installation is successful: After restarting Eclipse, go to Eclipse->window->preferences->java, this will be more than the original one jadclipse option, so that the installation is successful, However, it may not be working properly.
5. Configure default to Jadclipse open the. class file: Window->preferences, General, Editors, file associations find the "*.class" in the " Associatededitors "You can see the" Jode Class file Viewer "Check it and click the default button.
Eclipse Eclipse Installation Decompiler (anti-compilation)