What is the difference between ExecutorService.submit and ExecutorService.execute in this code in Java?

Question

I am learning to use ExectorService to pool threads and send out tasks. I have a simple program below

import java.util.concurrent.Execu         


        

Answer 1

Submit - Returns Future object, which can be used to check result of submitted task. Can be used to cancel or to check isDone etc.

Execute - doesn't return anything.