gra.java

来自「实例精华」· Java 代码 · 共 35 行

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

public class Gra extends Applet {
    int x,y;
    public void init() 
    {
        this.addMouseListener(new MouseAdapter(){
        
            public void mousePressed(MouseEvent e)
            {
                x = e.getX();
                y = e.getY();
            }
            public void mouseReleased(MouseEvent e)
            {
                Graphics g = getGraphics();
                g.setColor(Color.red);
                g.drawLine(x,y,e.getX(),e.getY());
                
            }
            
        });
    }

    public void paint(Graphics gg)
    {
        gg.drawString("HelloWorld",23,66);
        gg.fillRect(55,55,66,66);
    }

 
}