public class TestThread1 {
    public static void main(String args[]) {
        Runner1 r = new Runner1();
        r.start();
        //r.run();
        //Thread t = new Thread(r);
        //t.start();
        
        for(int i=0; i<100; i++) {
            System.out.println("Main Thread:------" + i);
        }
    }
}

//class Runner1 implements Runnable {
class Runner1 extends Thread {
    public void run() {
        for(int i=0; i<100; i++) {    
            System.out.println("Runner1 :" + i);
        }
    }
}