Possible Duplicate:
Eclipse find references for method
How to search for the classes (own package+other packages) which use a particular method in Eclipse (java)?
Possible Duplicate:
Eclipse find references for method
How to search for the classes (own package+other packages) which use a particular method in Eclipse (java)?
I believe you want "Find references in workspace". This is normally bound to CtrlShiftG
Right click on the method's name in the code and choose "Open Call Hierarchy" or use the key combination Ctrl+Alt+H after having clicked on the method's name. A panel called Call Hierarchy will open which contains a list of all the locations in the project that the method is called.
You can also search the entire workspace for text strings using File Search. This can be arrived at either through the "Search" menu (click "File..."). Or use Ctrl+H and click the "File Search" tab. Type the string you are looking for into the "Containing text" field. If you want you can also add *.java to the "File name patterns" field in order to just search Java source. Otherwise put * in the file name field in order to search the contents of all files in the workspace.