Ok, here is the problem: You are assigned to write a method for a Java based filemanager, that is able to delete an entire directory tree. Sounds like a trivial task, that can easily be solved by a very simple, recursive algorithm, doesn't it? Take a
File object. If it is indeed a file, just delete it. If it is a directory, list it's contents and call yourself for every file contained in it. Thats it, 10 minutes of coding and taking the rest of the day off. Money earned easily.