在Frame画图应用

实现代码：

import java.awt.*;import java.awt.event.*;public class DrawImage extends Frame {    Image img = getToolkit().getImage("1.jpg");    public void paint(Graphics g) {        g.drawImage(img, 0, 0, this);    }    public DrawImage() {        addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {                dispose();                System.exit(0);            }        });    }    public static void main(String[] args) {        // TODO Auto-generated method stub        System.out.println("Starting TestMyButton...");        DrawImage mainFrame = new DrawImage();        mainFrame.setSize(400, 400);        mainFrame.setTitle("TestButton");        mainFrame.setVisible(true);    }}

运行结果：