Basics - reading/writing remote files using Java

Question

I started with requirement of reading and writing files in from/in a directory on a remote Ubuntu machine.

First, I wrote a Java program that could read,write files

Answer 1

I think RMI might be the solution, you could set up a server an RMI server on the machine you want to connect to, and use your machine a the client.

I would give the client a path to the file this will be sent to the server, the server could then read in the file as bytes and sent the file back to the client.