Source code for the Java library classes

Question

Where can I find the source code for the Java library classes? I mean classes in rt.jar.

Platform: Windows.

Answer 1

There is also grepcode.com (not sure how old this site is, perhaps this answer is an update for new solutions now), sample query:

http://grepcode.com/search?query=java.lang.Math.sin&start=0&entity=type&n=