java 线程future - 1

package com.hym.test.thread;

import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;

public class CallableAndFuture {
	public static void main(String[] args) {
		Callable<Integer> call = new Callable<Integer>() {
			@Override
			public Integer call() throws Exception {
				return new Random().nextInt(100);
			}
		};

		FutureTask<Integer> task = new FutureTask<Integer>(call);

		new Thread(task).start();

		try {
			Thread.sleep(5000);
			System.out.println(task.get());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}