clock.java~89~

来自「提供了常用的JAVA技术的示例」· JAVA~89~ 代码 · 共 56 行

// 11-2  通 过 接 口 实 现 线 程 体 。
package Clock;

import java.util.Calendar;
import java.awt.Graphics;
import java.lang.ThreadGroup;

public class Clock extends java.applet.Applet implements Runnable{
    Thread clockThread;
    public void start(){
        if(clockThread==null){
            clockThread=new Thread(this,"Clock");
            clockThread.start();
        }
    }
    public void run(){
            for(int i=0;i<5;i++){
                System.out.println(i+"  runing  "+getName());
                try{
                clockThread.sleep(500);
                }
                catch(InterruptedException e){  }
            }
            System.out.println("done!"+getName());
    }

    public void repaint(Graphics g){
        Date now=new Date();
        g.drawString(now.getHours()+":"+now.getMinutes()+":"+now.getSeconds(),5,10);
        //System.out.print(now.getHours()+":"+now.getMinutes()+":"+now.getSeconds());
    }
    public void stop(){
        clockThread.stop();
        clockThread=null;
    }

    public static void main(String a[])throws InterruptedException{

        Thread t=new Thread();
        System.out.println("t.isAlive()=  "+t.isAlive());
        System.out.println("t.currentThread()=  "+t.currentThread());
        System.out.println("t.getClass()=  "+t.getClass());
        System.out.println("t.getName()=  "+t.getName());
        System.out.println("t.getPriority()=  "+t.getPriority());
        System.out.println("t.getContextClassLoader()=  "+t.getContextClassLoader());
        System.out.println("t.interrupted()=  "+t.interrupted());
        System.out.println("t.activeCount()=  "+t.activeCount());
        System.out.println("t.isDaemon()=  "+t.isDaemon());
        System.out.println("t.toString()=  "+t.toString());

        System.out.println();
        Clock c=new Clock();
        c.start();

    }
}