There are many situations when we shold make some task in a separate thread. However creating new thread for every task can be expensive. Much better to have 1 (or more) thread(s) which runs all our tasks.

ThreadManager (part of JGui http://jgui.imagero.com) has easy solution for this problem:

first we create ThreadManager:

ThreadManager tm = new ThreadManager();

this creates ThreadManager with 1 Thread.

If we need more Threads (for example 3) we can use another constructor:

ThreadManager tm = new ThreadManager(3);

Now we can add some task:

tm.addTask(new Runnable() {
public void run() {
//do heavy job here
}
});

There are also possibility to remove all tasks from queue:
tm.clearTasks()

When job is done and queue is empty our thread(s) goes to sleep.

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