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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.ArrayList;
  4. import java.util.List;
  5. import java.util.concurrent.Callable;
  6. import java.util.concurrent.ExecutionException;
  7. import java.util.concurrent.ExecutorService;
  8. import java.util.concurrent.Executors;
  9. import java.util.concurrent.Future;
  10.  
  11. /* Name of the class has to be "Main" only if the class is public. */
  12. class Ideone
  13. {
  14. 	public static void main (String[] args) throws java.lang.Exception
  15. 	{
  16. 		Ideone ideone = new Ideone();
  17.  
  18. 		ExecutorService executor = Executors.newFixedThreadPool(Runtime
  19. 				.getRuntime().availableProcessors());
  20. 		List<Callable<Boolean>> callables = new ArrayList<>();
  21. 		for (int counter = 0; counter < 8; counter++) {
  22. 			callables.add(ideone.new MyCallable());
  23. 		}
  24.  
  25. 		List<Future<Boolean>> futures = executor.invokeAll(callables);
  26. 		for (Future<Boolean> future : futures) {
  27. 			System.out.println(future.get());
  28. 		}
  29.  
  30. 		executor.shutdown();
  31.  
  32. 	}
  33.  
  34. 	private class MyCallable implements Callable<Boolean> {
  35.  
  36. 		@Override
  37. 		public Boolean call() {
  38. 			return Boolean.TRUE;
  39. 		}
  40. 	}
  41.  
  42. }
Success #stdin #stdout 0.13s 321856KB
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Standard input is empty
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true
true
true
true
true
true
true
true
https://ideone.com/uCq4UJ
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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