new to Java multithreading

Hi all,
I'm new to multithreading programming.
I have a problem with this :

There is a Thread that manage requests

There are many Threads that make requests to the Manager

When there aren't any active requests, the manager must sleep but when arrive one request
the manager must take this active request and start your job.
If arrive one other request, it will be positioned into a queue and his
owner thread will be suspended
When the Manager's job will be finished will be taken another request from the queue

How can I suspend and put a Thread in a queue and then restarting it ?

Thanks for any suggestion

In threading speak, the task of waiting for work, is generally done by a condition variable. And in Java, condition variable functionality are done with the wait() and notify() methods.

How about starting with Sun tutorial -- and learning up to about synchronization and the wait and notify mechanism?

http://java.sun.com/docs/books/tutorial/essential/concurrency/

Henry

There is allso Java Message Queue API:

http://docs.sun.com/app/docs/doc/820-5205/aeqcq?l=en&a=view&q=java+queue