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  1. What will be the output of the program?

     class MyThread extends Thread 
 {    
     MyThread() {}    
     MyThread(Runnable r) {super(r); }      
     public void run()   
     {        
          System.out.print("Inside Thread);   
     }  
  } 
  class MyRunnable implements Runnable  
  {    
     public void run()     
     {          
        System.out.print(" Inside Runnable");      
     }  
  }  
  class Test
  {     
      public static void main(String[] args)    
      {       
         new MyThread().start();               
         new MyThread(new MyRunnable()).start();  
      }  
   }

    2. A.

    Prints "Inside Thread Inside Thread"
    B.

    Prints "Inside Thread Inside Runnable"
    C.

    Does not compile
    D.

    Throws exception at runtime

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    View Answer

    Answer : Option A

    Explanation :

    If a Runnable object is passed to the Thread constructor, then the run method of the Thread class will invoke the run method of the Runnable object.

    In this case, however, the run method in the Thread class is overridden by the run method in MyThread class. Therefore the run() method in MyRunnable is never invoked.

    Both times, the run() method in MyThread is invoked instead.

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