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Subject: Re: Thread question
Date: Wed, 30 Nov 2011 05:30:53 -0800
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On 11/30/2011 4:28 AM, Eric Sosman wrote:

> On 11/30/2011 4:31 AM, Roedy Green wrote:
>> 2. some way of knowing when the last one completed.

> A simple counter will do it.


I'd recommend the simple built-in method "ExecutorService::shutdown()". 
  It waits until all tasks have completed.