Java ThreadPools?

I am currently programming a Client/Server programm, but i want do build a really professional one. Now I am at a problem, the server can only handle a request simultaneously.
I googled a tme and found the solution called "ThreadPools" (I know how to use Threads).
Then I searched for a "Java ThreadPool Tutorial", and found many blog and forum articles.
My Problem is, they were to difficult and complicated, so I didnt understood them.
Can anybody help me or post a link for a beginner tutorial?

Thanks, hice3000.

 

http://docs.oracle.com/javase/tutorial/essential/concurrency/pools.html here you go.

 

Do you think I werent on the official documentation? I asked for a easy tutorial which is not difficult, and on this doc is not even an example!

 

then why didn't you search for these:

• newCachedThreadPool
• newSingleThreadExecutor

 

For all the people how are searchen a tutorial too, I've found this article: http://www.math.uni-hamburg.de/doc/java/tutorial/essential/threads/group.html .

 

Creating a thread-pooled server is very easy.
I have programmed my own database-server and basically, this
is how a thread-pooled server would look like: https://github.com/MexProjects/MexServer