Creating a Thread by Extending Thread class

  package com.company;

class MyThread1 extends Thread{
@Override
    public void run(){
    int i = 0;
    while (i<40000){
            System.out.println("My thread is runing");
            System.out.println("I am happy");
        }
    }
}
class MyThread2 extends Thread{
@Override
    public void run(){
    int i = 0;
    while (i<40000){
            System.out.println("Thread2 is good");
            System.out.println("I am very happy");
            i++;
        }
    }
}


public class tuts {
    public static void main(String[] args) {
        MyThread1 t1 = new MyThread1();
        MyThread2 t2 = new MyThread2();
        t1.start();
        t2.start();
    }
}