关于Callable接口的一些实现细节

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

/**
 * @author lzq
 * @data 2020/4/30 0030 - 下午 4:02
 */
public class Test2 {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        MyThread thread=new MyThread();
        FutureTask task = new FutureTask(thread);
        new Thread(task,"a").start();
        new Thread(task,"b").start();
        System.out.println(task.get());
    }
}

class MyThread implements Callable<String> {

    @Override
    public String call() {
        System.out.println("实现callable");
        return "得到返回值";
    }
}