package com.bjsxt; import java.awt.*; import javax.swing.*; public class BallGame extends JFrame { Image ball = Toolkit.getDefaultToolkit().getImage("images/ball.jpg"); Image desk = Toolkit.getDefaultToolkit().getImage("images/desk.jpg"); //绘制窗口 public void paint(Graphics g){ System.out.println("窗口被画了一次"); g.drawImage(desk,0,0,null); g.drawImage(ball,200,200,null); } //创建窗口 void launchFrame() { setSize(856, 501); setLocation(100,100); setVisible(true); } public static void main(String[] args) { System.out.println("我的小游戏开始了"); BallGame game = new BallGame(); game.launchFrame(); } }
我只能出现窗口不能出现图片是为什么?