Hello,



I'm attempting to get a basic animation going in a Frame with the ability to pause the thread using the space bar. Attempting to be a good, compliant Java programmer, I'm using Sun's advice on how to accomplish this with wait() and notify() , rather than the oh-so-evil suspend() and resume() .



Here's the necessary bits of code:

			

			Class Animation extends Frame implements Runnable
			

			{
			

			private volatile Thread animThread;
			

			private volatile boolean animThreadSuspended;
			

			

			Animation()
			

			{
			

			addMouseListener(
			

			new MouseAdapter()
			

			{
			

			public synchronized void mousePressed(MouseEvent e)
			

			{
			

			e.consume();
			

			animThreadSuspended = !animThreadSuspended;
			

			if(!animThreadSuspended)
			

			{
			

			notify();
			

			}
			

			}
			

			});
			

			

			animThread = new Thread(this);
			

			animThread.start();
			

			}
			

			

			public void run()
			

			{
			

			while(true)
			

			{
			

			try
			

			{
			

			synchronized(this)
			

			{
			

			if(animThreadsSuspended)
			

			{
			

			wait();
			

			}
			

			}
			

			}
			

			catch(InterruptedException ie){}
			

			repaint();
			

			}
			

			}
			

			}