java threads: stopping all threads when one finishes its task

I created two threads with the thread pool, and if one of them is finished, the other threads need to be stopped. How can i achieve?

My idea is to use AtomicBoolean or CountDownLatch to achieve.My code is as follows：

import com.google.common.util.concurrent.ThreadFactoryBuilder;  import java.util.concurrent.*;  import java.util.concurrent.atomic.AtomicBoolean;    public class Test {  public static void main(String[] args) {      //Thread Pool      ThreadFactory namedThreadFactory = new ThreadFactoryBuilder().setNameFormat("demo-pool-%d").build();      ExecutorService executorService = new ThreadPoolExecutor(6, 10, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingDeque<Runnable>(1024), namedThreadFactory, new ThreadPoolExecutor.AbortPolicy());        AtomicBoolean atomicBool = new AtomicBoolean(false);        System.out.println("start");      for (int i = 0; i < 2; i++) {          //If any threads are executed, all threads end immediately          if (atomicBool.get() == true) {              executorService.shutdownNow();          }            executorService.execute(() -> {              System.out.println(Thread.currentThread().getName());              //do something              //....              atomicBool.set(true);          });      }        if (atomicBool.get() == true) {          executorService.shutdownNow();      }      System.out.println("end");  }}  

But both threads are finished，The result is as follows：

start  end  demo-pool-0  demo-pool-1  

what should I do？

https://stackoverflow.com/questions/67249021/java-threads-stopping-all-threads-when-one-finishes-its-task April 25, 2021 at 09:46AM