程序如下：
class ThreadDemo1 implements Runnable{//实现Runnable接口private String name;private int time;public ThreadDemo1(String name,int time){this.name=name;this.time=time;}public void run() {//覆写run方法try {Thread.sleep(this.time);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println(this.name+"线程休眠"+this.time);}}public class MyThread {public static void main(String[] args) {ThreadDemo1 thread01=new ThreadDemo1("A",1000);//实现Runnable 子类对象；ThreadDemo1 thread02=new ThreadDemo1("B",2000);ThreadDemo1 thread03=new ThreadDemo1("C",3000);new Thread(thread01).start();//实例化Thread类，启动线程new Thread(thread02).start();new Thread(thread03).start();}}运行如下：
A线程休眠1000B线程休眠2000C线程休眠3000
，离开之后，我想你不要忘记一件事：不要忘记想念我。
