class Extender extends Thread { Extender(Runnable run){ super(run); super.start(); //this.start(); }

public void run(){
    System.out.println("Extender Thread is Started :");
        //new Thread(new Implementer()).start();
    }

} class Implementer implements Runnable { public void run(){ System.out.println("ohhh Implementer Thread is started: "); } } public class ThreadDemo { public static void main(String args[]){ new Extender(new Implementer()).run(); } }