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  1. import java.util.Arrays;
  2. import java.util.List;
  3. import java.util.concurrent.CountDownLatch;
  4.  
  5. class Ideone {
  6.   private static final CountDownLatch countDownLatch = new CountDownLatch(2);
  7.   private static volatile boolean flag = false;
  8.  
  9.   public static void main(String[] args) throws InterruptedException {
  10.     List<Runnable> runnables = Arrays.asList(() -> {
  11.       try {
  12.         while (true) {
  13.           Thread.sleep(100);
  14.           if (flag) {
  15.             countDownLatch.countDown();
  16.             System.out.println("Second Function");
  17.             break;
  18.           }
  19.         }
  20.       } catch (Exception e) {
  21.       }
  22.     }, () -> {
  23.       try {
  24.         Thread.sleep(100);
  25.         System.out.println("First Function");
  26.         flag = true;
  27.         countDownLatch.countDown();
  28.         System.out.println("End of fast function");
  29.         System.out.println(flag);
  30.       } catch (Exception e) {
  31.       }
  32.     });
  33.     executeAndWait(runnables);
  34.     countDownLatch.await();
  35.     System.out.println("Main Execution Completed!");
  36.   }
  37.  
  38.   private static void executeAndWait(List<Runnable> runnables) {
  39.     runnables.forEach(r -> new Thread(r).start());
  40.   }
  41. }
Success #stdin #stdout 0.1s 50132KB
comments ()
stdin
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Standard input is empty
stdout
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First Function
End of fast function
true
Second Function
Main Execution Completed!
https://ideone.com/vaSEI6
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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