Java多线程 开端

Java启动多线程的两种方式：
一是实现Runnable接口
二是继承Thread类，重写run()方法。

package com.kunpengku;public class Welcome {    public static void main(String[] args) throws Exception    {        //多线程方式一        Runnable r = new Ppp();        Thread t = new Thread(r);        t.start();        //多线程方式二        Q q = new Q();        q.start();    }}class Ppp implements Runnable{    public void run(){        try{            for (int i=0;i<10;i++){                System.out.println(Thread.currentThread()+String.valueOf(i));                Thread.sleep(1000);            }        }catch(InterruptedException e){            e.printStackTrace();        }    }}class Q extends Thread{    public void run(){        try{            for (int i=0;i<10;i++){                System.out.println(Thread.currentThread());                Thread.sleep(1000);            }        }catch(InterruptedException e){            e.printStackTrace();        }    }}