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package servlet.test;

import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

public class CallableAndFutureTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		ExecutorService threadPool = Executors.newSingleThreadExecutor();
		Future<Integer> future = threadPool.submit(new Callable<Integer>() {
			public Integer call() throws Exception {
				Thread.sleep(1000);
				return new Random().nextInt(100);
			}
		});

		try {
			System.out.println(future.get());
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ExecutionException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			threadPool.shutdown();
		}

	}

}