MultiThreading by Extending Thread

Program to impement Multithreading by extending Thread class

class OldThread extends Thread {
    OldThread() {
        super("DemoThread");
        System.out.println("Child Thread:: " + this);
        // Start run method
        start();
    }
    public void run() {
        try {
            for (int i = 2; i <= 20; i += 2) {
                System.out.println("Even Number Thread:: " + i);
                Thread.sleep(500);
            }
        } catch (Exception e) {
            System.out.println("Child Interrupted");
        }
        System.out.println("Exiting Child Thread");
    }
}

class ExtendsThread {
    public static void main(String[] args) {
        OldThread ot = new OldThread();
        try {
            for (int i = 1; i < 20; i += 2) {
                System.out.println("Odd Number Thread:: " + i);
                Thread.sleep(500);
            }
        } catch (Exception e) {
            System.out.println("Main Thread Interrupted");
        }
        System.out.println("Main Thread Exiting");
    }
}

OUTPUT::

Child Thread::Thread[DemoThread, 5, main]

Odd Number Thread::1
Even Number Thread::2
Odd Number Thread::3
Even Number Thread::4
Odd Number Thread::5
Even Number Thread::6
Odd Number Thread::7
Even Number Thread::8
Odd Number Thread::9
Even Number Thread::10
Even Number Thread::12
Odd Number Thread::11
Even Number Thread::14
Odd Number Thread::13
Even Number Thread::16
Odd Number Thread::15
Odd Number Thread::17
Even Number Thread::18
Odd Number Thread::19
Even Number Thread::20

Exiting Child Thread

Main Thread Exiting