Java Thread suspend resume stop

class MyThread implements Runnable {
  private String name; // name of thread
  private Thread t;
  private boolean suspendFlag;
  
  public MyThread(String threadname) {
    name = threadname;//from w w  w .ja  v  a 2  s.  co m
    t = new Thread(this, name);
    System.out.println("New thread: " + t);
    suspendFlag = false;
    t.start(); // Start the thread
  }
  public Thread getThread() {
    return t;
  }
  // This is the entry point for thread.
  public void run() {
    try {
      for(int i = 15; i > 0; i--) {
        System.out.println(name + ": " + i);
        Thread.sleep(200);
        synchronized(this) {
          while(suspendFlag) {
            wait();
          }
        }
      }
    } catch (InterruptedException e) {
      System.out.println(name + " interrupted.");
    }
    System.out.println(name + " exiting.");
  }

  synchronized void mysuspend() {
    suspendFlag = true;
  }

  synchronized void myresume() {
    suspendFlag = false;
    notify();
  }
}

public class Main {
  public static void main(String args[]) {
    MyThread ob1 = new MyThread("One");
    MyThread ob2 = new MyThread("Two");

    try {
      Thread.sleep(1000);
      ob1.mysuspend();
      System.out.println("Suspending thread One");
      Thread.sleep(1000);
      ob1.myresume();
      System.out.println("Resuming thread One");
      ob2.mysuspend();
      System.out.println("Suspending thread Two");
      Thread.sleep(1000);
      ob2.myresume();
      System.out.println("Resuming thread Two");
    } catch (InterruptedException e) {
      System.out.println("Main thread Interrupted");
    }

    // wait for threads to finish
    try {
      System.out.println("Waiting for threads to finish.");
      ob1.getThread().join();
      ob2.getThread().join();
    } catch (InterruptedException e) {
      System.out.println("Main thread Interrupted");
    }
 
    System.out.println("Main thread exiting.");
  }
}