添加按钮\小程序查看器.java

//<applet code=ButtonApplet.class width=400 height=300></applet>
import java.awt.*;import java.applet.*;
public class ButtonApplet extends Applet
{
    int x,y;
    Button Bt;    
    public ButtonApplet()//加入按钮
    {
        x=y=100;
        Bt=new Button("按我");
        add("Center",Bt);
    }    
    public void paint(Graphics g)
    {
        g.drawString("Faint",x,y);
    }    
    public boolean action(Event ev,Object arg)//触发Applet,可以点击按钮，字符串换位置
    {        
    if(ev.target instanceof Button)
        {            
        if(x>=200)
              x=0;            
              else
              x+=20;            
              if(y<=200)
              y=200;            
              else
              y-=10;
             repaint();
        }        
        return true;
    }
}

运行结果：