Getting the output of a Thread

Question

What do you think is the best way for obtaining the results of the work of a thread? Imagine a Thread which does some calculations, how do you warn the main program the calculat

Answer 1

As an alternative to the concurrency API as described by Saua (and if the main thread doesn't need to know when a worker thread finishes) you could use the publish/subscribe pattern.

In this scenario the child Thread/Runnable is given a listener that knows how to process the result and which is called back to when child Thread/Runnable completes.