When should I use a CompletionService over an ExecutorService?

Question

I just found CompletionService in this blog post. However, this does\'t really showcases the advantages of CompletionService over a standard ExecutorService. The same code c

Answer 1

See it by yourself at run time,try to implement both solutions (Executorservice and Completionservice) and you'll see how different they behave and it will be more clear on when to use one or the other. There is an example here if you want http://rdafbn.blogspot.co.uk/2013/01/executorservice-vs-completionservice-vs.html