creating threads through annomyous inner class

Question

I was developing the code of creating a thread but without extending the thread class or implementing the runnable interface , that is through anonymous inner classes ..

Answer 1

 Runnable run = new Runnable() {
    public void run() {
        try {
            for (int i = 0; i < 20; i++) {
                Thread.sleep(1000);
                System.out.print(i + "\n" + "..");
            }

        } catch (InterruptedException e) {
            System.out.println(" interrupted");
        }
    }
 };
 new Thread(run).start();
 new Thread(run).start();

Don't wait for one to finish before starting the second or you have three threads where on one is ever running (in which case the additional threads were pointless)

BTW: Your synchronized isn't doing anything useful but it could cause the Thread to function incorrectly.

---