The following are the Windows environments:
The first type of plugin:
Jadclipse
Download the jar package, the current or Net.sf.jadclipse_3.3.0.jar address: http://sourceforge.net/projects/jadclipse/
Download the anti-compilation tool Jad.exe address: http://varaneckas.com/jad/
Copy the Net.sf.jadclipse_3.3.0.jar to the plugins subdirectory under the Eclipse installation directory, for example, mine is D:\adt\eclipse\plugins
Start eclipse
Click Window->preferences->java->jadclipse
Specify the path and temporary file directory where the Jad.exe tool is located, as follows
You can then open a class file directly
If not, set the editor for the class file association, as follows
Window->preferences->general->editors->file Associations
Set *.class without source editor to Jadclipse class File Viewer (default)
If this editor does not appear below, you can click on the bottom right of the add ... Add to
The second type of plugin:
Jd-eclipse
Install it online or download it and install it yourself, address: http://jd.benow.ca/
If you install it online:
Help->install New software...-> Click Add ...
Name Enter Jd-eclipse Update Site (or whatever, any name)
Enter Http://jd.benow.ca/jd-eclipse/update in location
Click Ok-> All-in-a-way next, such as
It's also easy to install offline, so don't say it here.
Note: Android's Adt-bundle development tools are the same