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I think the ThreadPoolExecutor is what you need: <a href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html" rel="ugc">http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html</a><br />
<br />
You can set the maximum number of threads, get the number of executing threads, and you can set a method to be invoked when a thread ends, where you can check if it is the last one.
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I think the ThreadPoolExecutor is what you need: http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html [http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html]

You can set the maximum number of threads, get the number of executing threads, and you can set a method to be invoked when a thread ends, where you can check if it is the last one.

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I tried using the ThreadPoolExecutor class but was unable to see how to check when the last threads.<br />
How do you do that?
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I tried using the ThreadPoolExecutor class but was unable to see how to check when the last threads.
How do you do that?

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&gt;but was unable to see how to check when the last threads<br />
<br />
When the last threads do what? 
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>but was unable to see how to check when the last threads

When the last threads do what?

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Oh, sorry. .... when it ends. How do I check when the last thread ends?
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Oh, sorry. .... when it ends. How do I check when the last thread ends?

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Hello,<br />
<br />
I'm looking for the simplest way to have in Java a pool of threads with the ability to specify the maximum number of threads, know at any given time how many threads are running and know when all the threads have finished running.<br />
<br />
Thank you.
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Hello,

I'm looking for the simplest way to have in Java a pool of threads with the ability to specify the maximum number of threads, know at any given time how many threads are running and know when all the threads have finished running.

Thank you.

Blocking Java Thread Pool

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.