How to make one thread die before another thread

[Satyajeet Kadam]

Q1) There are three thread A,B,C. I want thread A to finish its execution after thread B and C completes.How to do it? Each time i am getting different output.

Q2) Is it possiable to make main thread die before thread A,B,C?

 
  class DoSomething implements Runnable {
    public void run() {
          System.out.println("Do something    ="+Thread.currentThread().getName());
          // System.out.println("Inside run"+"A="+t1.isAlive()+"B="+t2.isAlive()+"C"+t3.isAlive());
     }
  }

  public class Nav {
      public static void main(String [] args)
                  throws InterruptedException {
          DoSomething r = new DoSomething();
          Thread t1 = new Thread(r);
          t1.setName("A");
              Thread t2 = new Thread(r);
              t2.setName("B");
                 Thread t3 = new Thread(r);
                 t3.setName("C");
         t1.start();
         t2.start();
         t3.start();
         System.out.println("Before Join="+"A="+t1.isAlive()+"B="+t2.isAlive()+"C"+t3.isAlive());
         t2.join();
         System.out.println("After Join="+"A="+t1.isAlive()+"B="+t2.isAlive()+"C"+t3.isAlive());
          System.out.println(" else= "+Thread.currentThread().getName());
          System.out.println("After Else="+"A="+t1.isAlive()+"B="+t2.isAlive()+"C"+t3.isAlive());
      }
 }

[Deepak Bala]

One solution would be to chain this up with join(). B->C->A

Is it possiable to make main thread die before thread A,B,C?

Try to make the other threads sleep for a while after they are started by the main thread. What happens ?

[Abimaran Kugathasan]

amolpalekar kadolkar wrote:Q1) There are three thread A,B,C. I want thread A to finish its execution after thread B and C completes.How to do it? Each time i am getting different output.

Pass those threads(in your case, thread A) to other thread's methods, and call join the thread A in you convenient way.