//实现Runnable接口的线程

public class RunnableDemo implements Runnable {

//定义Dog和Cat线程名字的变量name

String name;

//带参构造，实例化对象的时候直接传值

public RunnableDemo(String name) {

this.name = name;

}

public void run() {

for (int n = 1; n < 4; n++) {

System.out.println(Thread.currentThread().getName() + "A  " + this.name);

}

}

public static void main(String[] args) {

//定义for循环，循环三次输出main thread

for (int n = 1; n < 4; n++) {

System.out.println("main thread");

}

// 创建线程类Dog、Cat，并赋值！

RunnableDemo Dog = new RunnableDemo("dog");

RunnableDemo Cat = new RunnableDemo("cat");

//创建Thread类对象，把Dog Cat对象传入

Thread t1 = new Thread(Dog);

Thread t2 = new Thread(Cat);

t1.start();

t2.start();

}

}