How to add class folders in Eclipse?

Question

Eclipse is configured to compile to the assembly directory in 'bin'. I have a folder structure with various Java.class files (precompiled) that I want to copy to the bin folder during compilation.

How can I tell Eclipse to automatically do this?

Answer 1

The buttons "Add Class Folder ..." and "Add External Class Folder" in the "Java Build Path" section in the project properties seem to do exactly what you want.