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  1. /* package whatever; // don't place package name! */
  2.  
  3.  
  4. import java.util.concurrent.TimeUnit;
  5.  
  6. class Test {
  7.     private static boolean running = true;
  8.  
  9.     public static void main(String[] args) {
  10.         new Thread(() -> {
  11.             System.out.println(Thread.currentThread().getName() + "get running:" + running);
  12.             while (running) {
  13.                 try {
  14.                     TimeUnit.SECONDS.sleep(2);
  15.                 } catch (InterruptedException e) {
  16.                     e.printStackTrace();
  17.                 }
  18.             }
  19.             System.out.println(Thread.currentThread().getName() + "end");
  20.         }, "t1").start();
  21.  
  22.         new Thread(() -> {
  23.             try {
  24.                 TimeUnit.SECONDS.sleep(2);
  25.             } catch (InterruptedException e) {
  26.                 e.printStackTrace();
  27.             }
  28.             running = false;
  29.             System.out.println(Thread.currentThread().getName() + "change running to:" + running);
  30.         }, "t2").start();
  31.  
  32.         new Thread(() -> {
  33.             System.out.println(Thread.currentThread().getName() + "get running:" + running);
  34.             try {
  35.                 TimeUnit.SECONDS.sleep(3);
  36.             } catch (InterruptedException e) {
  37.                 e.printStackTrace();
  38.             }
  39.             System.out.println(Thread.currentThread().getName() + "get running:" + running);
  40.         }, "t3").start();
  41.     }
  42. }
Success #stdin #stdout 0.14s 36812KB
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Standard input is empty
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t3get running:true
t1get running:true
t2change running to:false
t1end
t3get running:false
https://ideone.com/grpCHn
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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