多线程操作方式之Callable接口

学习目标：

多线程操作方式之Callable接口

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学习内容：

Callable接口使用

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代码示例：

package com.wxit.juc;

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

/**
 * @Author wj
 **/
public class CallableDemo {
    
    
    public static void main(String[] args) throws ExecutionException, InterruptedException {
    
    
        FutureTask<Integer> futureTask = new FutureTask(new MyThread());
        new Thread(futureTask,"A").start();

        Integer integer = futureTask.get();
        System.out.println(integer);
    }
}


class MyThread implements Callable<Integer>{
    
    

    @Override
    public Integer call() throws Exception {
    
    
        System.out.println("轻轻地风儿轻轻地吹");
        return 2020;
    }
}