public class ThreadTest implements Runnable {
    static int next_id=1;

    boolean keepRunning = true;
    int snooze;       
    int id;

    public ThreadTest() {
	this( 1000 );
    }

    public ThreadTest(int milliseconds) {
	snooze = milliseconds;
	id = next_id++;
	//id = System.currentTimeMillis();    //long
    }

    public void run() {
	while (keepRunning) {
	    try {
		Thread.sleep(snooze);
	    }
	    catch (InterruptedException e) {
		System.out.println("InterruptedException caught");
	    }   
	    
	    System.out.println(this);
	}
    }

    public void pleaseStop() {
	keepRunning = false;
	System.out.println("thread "+this+" terminating");
    }

    public void pleasePause() {
	try {
	    //dummy_waiter.pause();
	}
	catch (IllegalMonitorStateException e) {
	    System.out.println("thread "+this+" IllegalMonitorStateException");
	}
	System.out.println("thread "+this+" pausing");
    }

    public void pleaseContinue() {
	try {
	    //	    dummy_waiter.continu();
	}
	catch (IllegalMonitorStateException e) {
	    System.out.println("thread "+this+" IllegalMonitorStateException");
	}
	System.out.println("thread "+this+" continuing");
    }

    public void updateSnooze(int newSnooze) {
	snooze = newSnooze;
	System.out.println("thread "+this+" new snooze");
    }

    public String toString() {
	return Integer.toString(id) + " " + Integer.toString(snooze);
    }

    /*
    //doesn't work
    public static class waiter {
	//dummy class so threads have some object to wait and notify on??
	public synchronized void pause() {
	    try {
		System.out.println("waiter pause");
		this.wait();
	    }
	    catch (InterruptedException e) {
		System.out.println("waiter InterruptedException");
	    }
	}
	public synchronized void continu() {
	    System.out.println("waiter continu");
	    this.notify();
	}
    }
    waiter dummy_waiter = new waiter();
    */
}