Java中swing使用ImageIcon类添加图片

package com.liuyanzhao;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.WindowConstants;
public class Demo3 extends JFrame {
public void GUI() {
setTitle("图像测试");
JPanel panel = new JPanel();
JLabel label = new JLabel();
ImageIcon img = new ImageIcon("images/logo.jpg");// 创建图片对象
label.setIcon(img);
panel.add(label);
add(panel);
setExtendedState(JFrame.MAXIMIZED_BOTH);// JFrame最大化
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 让JFrame的关闭按钮起作用
setVisible(true);// 显示JFrame
}
public static void main(String args[]) {
Demo3 d = new Demo3();
d.GUI();
}
}