New to Java

I am thinking of making a file copy program like the download managers, which provides resume enables, so that users can continue at later times.

Suppose, i have a 10 GB file, and i want to transfer it over to my external, then instead of non breakable file copying, user get the option to stop, and resume laters from that point only.

I am not sure if its feasible in java, but if its, please tell me how to achieve that.

I am not asking you to give me the code, rather a bit about how to proceed in that direction.

Thank you.