Eclipse must know keystrokes:



Using Interfaces if you want to see implementation of function, instead of F3 press Ctrl – T while on the function name.



Open Type (Ctrl-Shift-T) should be used to open a class, and Open Resource to browse to a file. Although Open Resource can be used to open java files, Open Type shows only classes making list it a shorter list.

Ctrl-O in a class definition brings up Quick Outline. Start typing a member name and hit return when it’s unambiguous.

Ctrl-F6 can be used to switch to the editors. The order of the editors is quite user friendly as most recently used on the top. Same way Ctrl-F7 to switch to Views and Ctrl-F8 for Perspective.