多线程总结

Posted 2023-03-19 123456dh

package edu.wtbu;

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

public class Demo04 
    public static void main(String[] args) 
        new MyThread1().start();

        new Thread(new MyThread2()).start();

        FutureTask<Integer> futureTask = new FutureTask<Integer>(new MyThread3());
        new Thread(futureTask).start();

        try 
            Integer integer=futureTask.get();
            System.out.println(integer);
         catch (InterruptedException e) 
            throw new RuntimeException(e);
         catch (ExecutionException e) 
            throw new RuntimeException(e);
        
    


class MyThread1 extends Thread
    @Override
    public void run() 
        System.out.println("MyThread1");
    


class  MyThread2 implements Runnable
    @Override
    public void run() 
        System.out.println("MyThread2");
    


class  MyThread3 implements Callable 

    @Override
    public Integer call() throws Exception 
        System.out.println("MyThread3");
       return 10;