Is there any method by which I can join() to a group of threads instead of a single one?

Alex Chaffee

Yes. Just join to each one in turn. That way, when the loop exits, you know that all the threads have exited -- whether it was the first thread or the seventh thread that took the longest, all threads will be waited for. Remember, join() on a thread that's already exited takes no time.


Iterator i = myThreads.iterator();
while (i.hasNext()) {
  ((Thread)i.next()).join();
}
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