编写一个JFrame窗口,要求如下:
- 在窗口的NORTH区放置一个JPanel面板。
- JPanel面板放置如下组件:
(1) JLable标签,标签文本为“兴趣”,右边接着是三个JCheckBox多选按钮,选项分别是“羽毛球”、“乒乓球”、“唱歌”。可以多选。
(2) JLabel标签,标签文本为“性别”,右边接着是两个JRadioButton按钮,选项分别是“男”、“女”。置成单选按钮,提示:使用ButtonGroup类 。
(3) 兴趣标签及按钮放在第一行,性别标签及按钮放在第二行,分别借助两个行型Box容器安排这两行组件的位置,而两个行型Box容器放入JPanel面板中,要两行组件对齐的话,可以把JPanel面板设置两行一列的GridLayout布局。 - 窗口的CENTER区域放置一个JScrollPane容器,容器中放置一个JTextArea文本域。
- 当点击JCheckBox多选按钮和JRadioButton按钮时,如果是选中操作,则把选中项的文本显示在JTextArea文本域,每行显示一个选项。可以重复点击,每次点击都显示选中项。
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package UserInterface;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ComponetInWindow extends JFrame implements ActionListener {
JLabel lableHobby;
JLabel lableGender;
JCheckBox checkBoxBadminton;
JCheckBox checkBoxPingpang;
JCheckBox checkBoxSong;
JRadioButton radioButtonMale;
JRadioButton radioButtonFemale;
Box box1,box2;
ButtonGroup group;
JScrollPane scrollPane;
JTextArea area=new JTextArea(12,12);
ComponetInWindow(){
super("用户界面");
Container contentPane=getContentPane();
JFrame frame=new JFrame();
JPanel northPanel=new JPanel();
GridLayout grid=new GridLayout(2,1);
northPanel.setLayout(grid);
box1=Box.createHorizontalBox();
box2=Box.createHorizontalBox();
lableHobby=new JLabel("兴趣");
checkBoxBadminton=new JCheckBox("羽毛球");
checkBoxPingpang=new JCheckBox("乒乓球");
checkBoxSong=new JCheckBox("唱歌");
box1.add(lableHobby);
box1.add(checkBoxBadminton);
box1.add(checkBoxPingpang);
box1.add(checkBoxSong);
lableGender=new JLabel("性别");
group=new ButtonGroup();
radioButtonMale=new JRadioButton("男");
radioButtonFemale=new JRadioButton("女");
group.add(radioButtonMale);
group.add(radioButtonFemale);
box2.add(lableGender);
box2.add(radioButtonMale);
box2.add(radioButtonFemale);
northPanel.add(box1);
northPanel.add(box2);
contentPane.add(northPanel,BorderLayout.NORTH);
scrollPane=new JScrollPane(area);
JTextArea area=new JTextArea();
scrollPane.add(area);
contentPane.add(scrollPane,BorderLayout.CENTER);
validate();
setSize(300,400);
setVisible(true);
radioButtonMale.addActionListener(this);
radioButtonFemale.addActionListener(this);
checkBoxBadminton.addActionListener(this);
checkBoxPingpang.addActionListener(this);
checkBoxSong.addActionListener(this);
}
public void actionPerformed (ActionEvent e) {
if(e.getSource()==checkBoxBadminton)
{
if(checkBoxBadminton.isSelected()==true)
{
area.append("羽毛球"+"\n");
}
}
else if(e.getSource()==checkBoxPingpang)
{
if(checkBoxPingpang.isSelected()==true)
{
area.append("乒乓球"+"\n");
}
}
else if(e.getSource()==checkBoxSong)
{
if(checkBoxSong.isSelected()==true)
{
area.append("唱歌"+"\n");
}
}
else if(e.getSource()==radioButtonMale)
{
if(radioButtonMale.isSelected()==true)
{
area.append("男"+"\n");
}
}
else if(e.getSource()==radioButtonFemale)
{
if(radioButtonFemale.isSelected()==true)
{
area.append("女"+"\n");
}
}
}
}
package UserInterface;
import javax.swing.*;
import java.awt.*;
public class Apply {
public static void main(String[] args) {
ComponetInWindow win=new ComponetInWindow();
win.setBounds(100,100,500,300);
win.setVisible(true);
win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
