24 lines
643 B
Java
24 lines
643 B
Java
|
// threads/Futures.java
|
||
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
||
|
|
// We make no guarantees that this code is fit for any purpose.
|
||
|
|
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
|
||
|
|
import java.util.*;
|
||
|
|
import java.util.concurrent.*;
|
||
|
|
import java.util.stream.*;
|
||
|
|
|
||
|
|
public class Futures {
|
||
|
|
public static void main(String[] args)
|
||
|
|
throws InterruptedException, ExecutionException {
|
||
|
|
ExecutorService exec =
|
||
|
|
Executors.newSingleThreadExecutor();
|
||
|
|
Future<Integer> f =
|
||
|
|
exec.submit(new CountingTask(99));
|
||
|
|
System.out.println(f.get()); //(1)
|
||
|
|
exec.shutdown();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* Output:
|
||
|
|
99 pool-1-thread-1 100
|
||
|
|
100
|
||
|
|
*/
|