Swing学习笔记之ButtonGroup

﹏ヽ暗。殇╰゛Y 2021-12-21 02:05 317阅读 0赞

初学Swing，简单记录一下自己的学习历程。希望回头看看时可以笑笑自己那曾经的过去…

This class is used to create a multiple-exclusion scope for a set of buttons. Creating a set

of buttons with the same object means that turning "on" one of those buttons turns off

all other buttons in the group.

先看一下结果吧

[![未命名][201112271043539396.jpg]][201112271043539396.jpg 1]

附一段代码

import java.awt.BorderLayout;
    import javax.swing.JFrame;
    import javax.swing.JRadioButton;
    import javax.swing.ButtonGroup;
    import javax.swing.JPanel;
    
    public class ButtonGroups extends JFrame {
        /*Four RadioButton*/
        private JRadioButton button1 = new JRadioButton("China");
        private JRadioButton button2 = new JRadioButton("USA");
        private JRadioButton button3 = new JRadioButton("UK");
        private JRadioButton button4 = new JRadioButton("Russia");
        private ButtonGroup buttonGroup = new ButtonGroup();
        private JPanel jPanel = new JPanel();
        public ButtonGroups() {
            //这里没有实现任何功能
             buttonGroup.add(button1);
            buttonGroup.add(button2);
            buttonGroup.add(button3);
            buttonGroup.add(button4);
            jPanel.add(button1);
            jPanel.add(button2);
            jPanel.add(button3);
            jPanel.add(button4);
            //getContentPane()貌似1.5往后就不用了，我是1.4
            getContentPane().add(jPanel);
        }
    
        public static void main(String[] args) {
           ButtonGroups buttongroups = new ButtonGroups();
            //感觉这个和QQ聊天差不多大，感觉挺好
            buttongroups.setSize(540,510);
           buttongroups.setVisible(true);
            
        }
    }

转载于:https://www.cnblogs.com/havingsealing/archive/2011/12/27/2303104.html

[201112271043539396.jpg]: https://images.cnblogs.com/cnblogs_com/havingsealing/201112/201112271043539396.jpg
[201112271043539396.jpg 1]: /images/20211221/60feb447936c4097858fa7eeeabaf463.png