Java Phaser forceTermination() Method

The forceTermination() method is of Phaser class. This method forces the current phaser to come in termination state.

Syntax

Example 1

import java.util.concurrent.Phaser;
public class PhaserForceTerminationExample1
{
    public static void main(String[] args) throws InterruptedException
    {
          Phaser p = new Phaser();
          p.register();
          System.out.println("Phaser Object is register...");
          int i;
         
               new PhaserForceTerminationExample1().test(p); 
    } 
     private void test(final Phaser p)
    {
        new Thread(){
                @Override
                public void run()
                    {   
                        try
                        {
                        System.out.println(Thread.currentThread().getName()+" arrived");
                    }
                        finally{
                              System.out.println(Thread.currentThread().getName()+" Terminated:");
                   p.forceTermination();
                        }
                    
                    }

               }.start();
    }
}

Test it Now

Output:

Phaser Object is register...
Thread-0 arrived
Thread-0 Terminated:

Example 2

import java.util.concurrent.Phaser;
public class PhaserForceTerminationExample2
{
    public static void main(String[] args) throws InterruptedException
    {
          Phaser p = new Phaser();
          p.register();
          System.out.println("Phaser Object is register...");
          int i;
          for(i=0; i<=5; i++)
          { 
               new PhaserForceTerminationExample2().test(p);
            }
 
    } 
     private void test(final Phaser p)
    {
        new Thread(){
                @Override
                public void run()
                    {   
                        try
                        {
                        System.out.println(Thread.currentThread().getName()+" arrived");
                    }
                        finally{
                              System.out.println(Thread.currentThread().getName()+" Terminated:");
                   p.forceTermination();
                        }
                    
                    }

               }.start();
    }
}

Test it Now

Output:

Phaser Object is register...
Thread-0 arrived
Thread-0 Terminated:
Thread-1 arrived
Thread-1 Terminated:
Thread-2 arrived
Thread-2 Terminated:
Thread-3 arrived
Thread-3 Terminated:
Thread-4 arrived
Thread-4 Terminated:
Thread-5 arrived
Thread-5 Terminated:

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