发布于2021-10-05 12:20 阅读(150) 评论(0) 点赞(24) 收藏(3)
1.文字图标
- package com.jia.lesson;
-
- import javax.swing.*;
- import java.awt.*;
-
- public class IconDemo extends JFrame implements Icon {
-
- private int width;
- private int height;
-
- public IconDemo() {
- }
-
- public IconDemo(int width, int height) {
- this.width = width;
- this.height = height;
- }
-
- public void init() {
- IconDemo iconDemo = new IconDemo(15,15);
- //图标放在标签,也可以放在按钮上
- JLabel label = new JLabel("icontest", iconDemo, SwingConstants.CENTER);
- Container container =this.getContentPane();
- container.add(label);
-
- this.setVisible(true);
- this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
- }
-
- @Override
- public void paintIcon(Component c, Graphics g, int x, int y) {
- g.fillOval(x, y, width, height);
-
- }
-
- @Override
- public int getIconWidth() {
- return this.width;
- }
-
- @Override
- public int getIconHeight() {
- return this.height;
- }
-
- public static void main(String[] args) {
- new IconDemo().init();
- }
- }
2.图片图标
注意问题:
图片添加后显示空指针,此时重启idea就好了
- package com.jia.lesson;
-
- import javax.swing.*;
- import java.awt.*;
- import java.net.URL;
-
- public class ImageIconDemo extends JFrame{
-
-
- //构造器
- public ImageIconDemo() {
- //获取图片的地址,图片和代码在同级目录
- JLabel label = new JLabel("ImageIcon");
- URL url=ImageIconDemo.class.getResource("dsBuffer.jpg");
-
- ImageIcon imageIcon = new ImageIcon(url);
- label.setIcon(imageIcon);
- label.setHorizontalAlignment(SwingConstants.CENTER);
-
- Container container =getContentPane();
- container.add(label);
-
- setVisible(true);
- setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
- }
-
- //主程序
- public static void main(String[] args) {
- new ImageIconDemo();
- }
-
- }
-
原文链接:https://blog.csdn.net/qq_49759937/article/details/120602658
作者:javajava我最强
链接:http://www.javaheidong.com/blog/article/297025/3b8c5875c143db1b9c71/
来源:java黑洞网
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