Java Program on Runnable Interface in Multithreading

Program 1

package dataflair;

public class MyThread implements Runnable
{
      public void run()
      {
         try
         {
             int i;
             for(i=1;i<=10;i++)
             {
                 System.out.println(i);
                 Thread.sleep(1000);
             }
         }
         catch(InterruptedException e)
         {
             System.out.println(e);
         }
      }
}

Program 2

package dataflair;

public class TestMain 
{
    public static void main(String[] args) throws InterruptedException
    {
        //MyThread mt1=new MyThread();
        Runnable mt1=new MyThread();
        Runnable mt2=new MyThread1();
       
        Thread t=new Thread(mt1);
        Thread t1=new Thread(mt2);
//        
        
//          System.out.println("Main Thread Name: "+Thread.currentThread().getName());
//          System.out.println(t.getName());
          //t.setName("My First Thread");
          
         // System.out.println(t.getName());
        t.start();
        t1.start();
//        t.join();
//        t1.join();
//        for (int i = 100; i < 110; i++) 
        
//        {
//            System.out.println("Main Thread- ");  
//            Thread.sleep(1000);
//        }
        
    }
    
}

Program 3

package dataflair;

public class MyThread1 implements Runnable
{
      public void run()
      {
         try
         {
             int i;
             for(i=50;i<=60;i++)
             {
                 System.out.println(i);
                 Thread.sleep(1000);
             }
         }
         catch(InterruptedException e)
         {
             System.out.println(e);
         }
      }
}