package com.inmind.thread_pool10;

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

/*
学习任务：线程池：处理Callable任务

提交Callable任务的API：
<T> Future<T> submit(Callable<T> task) 提交值返回任务以执行，并返回代表任务待处理结果的Future。

注意：有返回的子线程操作，它的返回值会封装在Future中，通过get方法来获取
 */
public class Demo13 {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        //创建线程池
        ExecutorService threadPool = Executors.newFixedThreadPool(5);
        Future<Integer> future1 = threadPool.submit(new MyCallable(5));
        Future<Integer> future2 = threadPool.submit(new MyCallable(3));
        Future<Integer> future3 = threadPool.submit(new MyCallable(10));

        System.out.println("任务1返回的结果为："+future1.get());
        System.out.println("任务2返回的结果为："+future2.get());
        System.out.println("任务3返回的结果为："+future3.get());
    }
}