Java ThreadGroup resume() method with Examples

by Online Tutorials Library July 22, 2022

Java ThreadGroup resume() method

The resume() method of ThreadGroup class is used to resume all threads in the thread group which was suspended using suspend() method.

Syntax

Return

public final void resume()

Exception

SecurityException: This exception throws if the current thread is not allowed to access the thread group or any of the threads in the thread group.

Example

  class NewThread extends Thread   {      NewThread(String threadname, ThreadGroup tg)      {          super(tg, threadname);      }      public void run()      {          for(int i = 0;i < 10;i++)           {              i++;          }          System.out.println(Thread.currentThread().getName() + ” completed executing”);      }  }  public class ThreadGroupResumeExp   {      public static void main(String arg[]) throws InterruptedException,          SecurityException, Exception      {          // creating the threadGroup          ThreadGroup tg1 = new ThreadGroup(“Parent thread”);          ThreadGroup tg2 = new ThreadGroup(tg1, “Child thread”);            // creating a thread           NewThread t1 = new NewThread(“Thread-1”, tg1);          System.out.println(“Starting of Thread-1”);          t1.start();          // this will suspend all the threads          tg1.suspend();                    // creating another thread           NewThread t2 = new NewThread(“Thread-2”, tg2);          System.out.println(“Starting of Thread-2”);          t2.start();                    // this will resume all the threads suspended by tg1          tg1.resume();      }  }     

Test it Now

Output:

Starting of Thread-1  Starting of Thread-2  Thread-2 completed executing  Thread-1 completed executing

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Java ThreadGroup resume() method with Examples

Java ThreadGroup resume() method

Syntax

Return

Exception

Example

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