java-applet

 

走马灯，使用applet实现

import java.awt.*;
import java.applet.*;

public class test1 extends Applet implements Runnable{
    String msg = "a simple moving banner.";
    Thread t = null;
    int state;
    boolean stopFlag;
    public void init(){
        setBackground(Color.cyan);
        setForeground(Color.red);
    }
    public void start(){
        t = new Thread(this);
        stopFlag = false;
        t.start();
    }
    public void run(){
        char ch;
        for(;;){
         try{
            repaint();
            Thread.sleep(250);
            ch = msg.charAt(0);
            msg = msg.substring(1,msg.length());
            msg += ch;
            if(stopFlag) break;
         }catch(InterruptedException e){}
        }
    }
    public void stop(){
        stopFlag = true;
        t = null;
    }
    public void destory(){
    }
    public void paint(Graphics g){
        g.drawString(msg, 50, 30);
    }
}