title: In Eclipse, how to copy an existing project to another project?
body: <p>In Eclipse, I have one existing project, A.  Right now, I have just created another project, B, which is empty. Is it possible to copy all the files of project A, including its source code and related libraries to project B? There are a lot of involved libraries in project A. How to do this copying process correctly to ensure the copied files can still be compiled?</p>