IllegalThreadStateException

HelloWorld · #1 (**permalink**) 06-28-2007, 09:34 PM

Do anybody know why does this Exception is being thrown?

PHP Code:

  public class DiningPhilosopher {

    public static void main(String[] args) {

        Chopstick cs = new Chopstick();

        Philosopher p1 = new Philosopher(cs, cs, 1);

        Philosopher p2 = new Philosopher(cs, cs, 2);

        Philosopher p3 = new Philosopher(cs, cs, 3);

        Philosopher p4 = new Philosopher(cs, cs, 4);

        Philosopher p5 = new Philosopher(cs, cs, 5);

        p1.start();

        p2.start();

        p3.start();

        p4.start();

        p5.start();

    }

}

I don't see there's anything wrong in my codes...

Error Message:

Code:

Exception in thread "main" java.lang.IllegalThreadStateException
	at java.lang.Thread.start(Unknown Source)
	at DiningPhilosopher.main(DiningPhilosopher.java:10)

HelloWorld · #2 (**permalink**) 06-28-2007, 10:35 PM

I just fix the problem

The problem is that I cannot use Thread twice, that's why I would need to use implements Runnable on my Philosopher's class. and then creates:

Code:

Philosopher p1 = new Philosopher(cs, cs, 1);
Philosopher p2 = new Philosohper(cs, cs, 2);
// and so on until p5
// and then...
Thread t1 = new Thread(p1);
t1.start();
Thread t2 = new Thread(p2);
t2.start();
// and so on.. up to 5
// it works pretty good!
// need to be tested over time now to see if there's bugs

Thanx all who supported me ccoonen (is that how you spell it?) this is from the top of my head, and the rest of PT teams.. thanx for this forum so that I can post my problems.. haha... I'll post the solution right after I turned in my homework, need some checks for now...

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