ThreadGroup interrupt

ThreadGroup class provides interrupt method, to interrupt all the threads in a group.

public final void interrupt()

Interrupts all threads in this thread group and its sub groups.

Example

class InterruptEx extends Thread{
 public void run(){
  while(!isInterrupted()){
  }
  System.out.println(Thread.currentThread().getName() + " Interrupted");
 }

 InterruptEx(ThreadGroup grp, String name){
  super(grp, name);
 }

 public static void main(String args[])throws Exception{
  ThreadGroup group1 = new ThreadGroup("group1");
  ThreadGroup group2 = new ThreadGroup(group1, "group2");

  InterruptEx t1 = new InterruptEx(group1, "Thread1Group1");
  InterruptEx t2 = new InterruptEx(group1, "Thread2Group1");
  InterruptEx t3 = new InterruptEx(group1, "Thread3Group2");
  InterruptEx t4 = new InterruptEx(group1, "Thread4Group2"); 
 
  t1.start();
  t2.start();
  t3.start();
  t4.start();

  group1.interrupt();

  t1.join();
  t2.join();
  t3.join();
  t4.join();
 }
}

   

Sample Output

Thread1Group1 Interrupted
Thread4Group2 Interrupted
Thread3Group2 Interrupted
Thread2Group1 Interrupted

Related Posts

https://self-learning-java-tutorial.blogspot.com/2014/03/thread-interrupt-interrupt.html

https://self-learning-java-tutorial.blogspot.com/2014/03/know-interrupted-status-of-thread.html

https://self-learning-java-tutorial.blogspot.com/2014/03/interrupt-and-clear-interrupted-status.html

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