package MyFirstWindow; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class MyWindow extends JFrame implements ActionListener { JLabel interestLabel = new JLabel("兴趣:"); JCheckBox badmintonCheck = new JCheckBox("羽毛球"); JCheckBox tableTtennisCheck = new JCheckBox("乒乓球"); JCheckBox singCheck = new JCheckBox("唱歌"); JLabel genderLabel = new JLabel("性别:"); JRadioButton maleRadioButton = new JRadioButton("男"); JRadioButton femaleRadioButton = new JRadioButton("女"); JTextArea textArea = new JTextArea(5,25); MyWindow() { super("work"); Container contentPane = getContentPane(); JPanel northPanel = new JPanel(); northPanel.setLayout(new GridLayout(2,1)); Box box1 = Box.createHorizontalBox(); Box box2 = Box.createHorizontalBox(); box1.add(Box.createHorizontalStrut(3)); box1.add(interestLabel ); box1.add(badmintonCheck ); box1.add(tableTtennisCheck ); box1.add(singCheck); ButtonGroup group = new ButtonGroup(); group.add(maleRadioButton); group.add(femaleRadioButton); box2.add(Box.createHorizontalStrut(3)); box2.add(genderLabel); box2.add(maleRadioButton); box2.add(femaleRadioButton); northPanel.add(box1); northPanel.add(box2); contentPane.add(northPanel, BorderLayout.NORTH); JScrollPane scrollPane = new JScrollPane(textArea); contentPane.add(scrollPane, BorderLayout.CENTER); badmintonCheck.addActionListener(this); tableTtennisCheck.addActionListener(this); singCheck.addActionListener(this); maleRadioButton.addActionListener(this); femaleRadioButton.addActionListener(this); setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(400, 300); } public void actionPerformed(ActionEvent e) { if(e.getSource() == badmintonCheck) { if(badmintonCheck.isSelected() == true) { textArea.append("羽毛球" + " "); } } else if(e.getSource() == tableTtennisCheck) { if(tableTtennisCheck.isSelected() == true) { textArea.append("乒乓球" + " "); } } else if(e.getSource() == singCheck) { if(singCheck.isSelected() == true) { textArea.append("唱歌" + " "); } } else if(e.getSource() == maleRadioButton) { if(maleRadioButton .isSelected() == true) { textArea.append("男" + " "); } } else if(e.getSource() == femaleRadioButton) { if(femaleRadioButton .isSelected() == true) { textArea.append("女" + " "); } } else { return; } } public static void main(String args[]) { new MyWindow(); } }