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
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();
//感觉这个和聊天差不多大，感觉挺好
buttongroups.setSize(540,510);
buttongroups.setVisible(true);
}
}
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