fork download 
  1.  
  2. import java.io.PrintStream;
  3. import java.util.*;
  4. import java.util.concurrent.*;
  5.  
  6. public class Main
  7. {
  8.     static PrintStream o=System.out;
  9. 	public static  
  10. 	void main(String[] args) 
  11. 	throws Exception
  12. 	{
  13. 		Future f=execute ( 1,TimeUnit.SECONDS, new Callable (){
  14.  
  15. 			@Override
  16. 			public Object call ()
  17. 			throws Exception
  18. 			{
  19. 				for(int i=0;;++i)
  20. 					if (i % 100000000==0)
  21. 						o.println ( "working hard..." );
  22. 			}			
  23. 		});
  24. 		o.println ( "Cancel!" ); 
  25.         f.cancel ( false ); //ты больше не нужен
  26. 		f.cancel ( true ); //да останавливайся сука
  27. 		executor.shutdownNow (); //ну пожалуйста - освободи ценные ресурсы
  28.         o.println ( "Shutdown" ); 
  29.  
  30. 	}
  31. 	@SuppressWarnings("unchecked")
  32. 	public static <T> 
  33. 	Future<T> execute(
  34. 		long timeout,TimeUnit unit, Callable<T> task
  35. 	){
  36. 		return executeAll(timeout,unit,Arrays.asList ( task)).get(0);
  37. 	}    
  38.  
  39. 	public static <T> 
  40. 	List<Future<T>> executeAll(
  41. 		long timeout, TimeUnit unit,Collection<Callable<T>> tasks
  42. 	){
  43. 		try{
  44. 			return executor.invokeAll(tasks, timeout, unit);
  45. 		}catch (InterruptedException e){
  46. 			throw new RuntimeException(e);
  47. 		}		 
  48. 	}
  49. 	static void sl(int millis){
  50. 		try {
  51. 			Thread.sleep (millis);
  52. 		}catch (InterruptedException e) {
  53. 			e.printStackTrace();
  54. 		}
  55. 	}	
  56. 	final static ExecutorService 
  57. 		executor = Executors.newFixedThreadPool ( 3 );
  58. }
  59.  
Runtime error #stdin #stdout 4.99s 246016KB
comments (?)
stdin 
Standard input is empty
stdout 
working hard...
Cancel!
Shutdown
working hard...
working hard...
https://ideone.com/v9K21C
language:
Java (HotSpot 12)
created:
13 years ago
visibility:
public

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