CAN I MAKE A FOLDER WITH MY JAVA CODE ?

Answer 1

Yes you can, there are several different ways to do it depending on if you want to make 1 directory or up to all in the path if they don't exist and which version of Java you are using. You should be sure to do some checking in the process to see if the folders/directories already exist, so as not to overwrite them, and catch your errors.

Here is some more info to get you going:
http://stackoverflow.com/questions/3634853/how-to-create-a-directory-in-java