复选框与单选按钮

package ToggleDemo;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

public class ToggleDemo extends JFrame {

private JTextArea area = new JTextArea(6,15);

private JScrollPane paneWithTextArea = new JScrollPane(area);

private JPanel panWithButtons = new JPanel();

private JLabel label1 = new JLabel("兴趣:");

private JLabel label2 = new JLabel("性别:");

private JCheckBox cb1 = new JCheckBox("唱歌");

private JCheckBox cb2 = new JCheckBox("游泳");

private JCheckBox cb3 = new JCheckBox("旅游");

private JRadioButton rb1 = new JRadioButton("男",true);

private JRadioButton rb2 = new JRadioButton("女");

private ButtonGroup group = new ButtonGroup();

private Set<String> hobbies = new HashSet<String>();

private String sex = "男";

private ActionListener listener1 = new ActionListener() {

public void actionPerformed(ActionEvent event) {

JCheckBox cb = (JCheckBox)event.getSource();

if(cb.isSelected()) {

hobbies.add(cb.getText());

} else {

hobbies.remove(cb.getText());

}

printStatus();

}

};

private ActionListener listener2 = new ActionListener() {

public void actionPerformed(ActionEvent event) {

JRadioButton cb = (JRadioButton)event.getSource();

sex = cb.getText();

printStatus();

}

};

public ToggleDemo(String title) {

super(title);

area.setEditable(false);

cb1.addActionListener(listener1);

cb2.addActionListener(listener1);

cb3.addActionListener(listener1);

rb1.addActionListener(listener2);

rb2.addActionListener(listener2);

group.add(rb1);

group.add(rb2);

panWithButtons.setLayout(new FlowLayout());

panWithButtons.add(label1);

panWithButtons.add(cb1);

panWithButtons.add(cb2);

panWithButtons.add(cb3);

panWithButtons.add(label2);

panWithButtons.add(rb1);

panWithButtons.add(rb2);

Container contentPane = getContentPane();

contentPane.add(panWithButtons, BorderLayout.NORTH);

contentPane.add(paneWithTextArea,BorderLayout.CENTER);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

pack();

setVisible(true);

}

private void printStatus() {

area.append("您的兴趣爱好包括：");

Iterator<String> it = hobbies.iterator();

while(it.hasNext()) {

area.append(it.next()+" ");

}

area.append("您的性别为："+sex+"\n");

}

public static void main(String[] args) {

// TODO Auto-generated method stub

System.out.println("eeesdasfad");

new ToggleDemo("Hello");

}

}