testmouse.java

来自「这是一张java应用教程的随书光盘」· Java 代码 · 共 22 行

import java.awt.*;
import java.applet.*;
public class TestMouse extends Applet
{ String text="";
  public void paint(Graphics g)
    {
     g.drawString(text,20,20);
    }
  public boolean mouseDown(Event event,int x,int y)////鼠标按下处理函数
    {
     text="你已经按下了鼠标！";
     repaint();
     return true;
    }
public boolean mouseUp(Event event,int x,int y)//鼠标松开处理函数
    {
     text="";
     repaint();
     return true;
    }
}