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class Runnable implements MyRunnable{
    private String threadName;
    public  MyRunnable (String threadName);
    this.threadName=threadName;
}
public void run(){
     System.out.println("Thread"+threadName+"is Starting!");
    try{
       
        Thread.sleep(500);
    }
    catch(InterruptedException e){
        System.out.println("Thread"+threadName+"was Interuppeted");
    }
}
public class thread{
    public static void main(String[]args){
    System.out.println("Main Thread is Starting");
    Thread thread1= new Thread (new MyRunnable("Thread1"));
    Thread thread2=new Thread(new MyRunnable("Thread2"));
    Thread thread3= new Thread(new MyRunnable("Thread3"));
    thread1.start();
    thread2.start();
    thread3.start();
    try{
        thread1.join();
        thread2.join();
        thread3.join();
    }
    catch(InterruptedException e){
        System.out.println("The Main Thread was Interuppeted");
    }
    System.out.println("Main Thread is existing!");
    }
}