Question

用JAVA面版显示性别单选按钮怎么实现？在线等

Answer 1

mport java.awt.event.*;
import javax.swing.*;
public class test1 implements ActionListener {
JFrame jf = new JFrame("Example");
JPanel panel = new JPanel();
JRadioButton rb1 = new JRadioButton("音乐");
JRadioButton rb2 = new JRadioButton("体育");
JRadioButton rb3 = new JRadioButton("文学");
ButtonGroup group = new ButtonGroup ();
JTextField text = new JTextField(10);
test1(){
jf.add(panel);
group.add(rb1);
group.add(rb2);
group.add(rb3);
panel.add(rb1);
panel.add(rb2);
panel.add(rb3);
panel.add(text);
rb1.addActionListener(this);
rb2.addActionListener(this);
rb3.addActionListener(this);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setSize(300,200);
jf.setVisible(true);

}
public static void main(String[] args) {
test1 t = new test1();

}
@Override
public void actionPerformed(ActionEvent e) {
if(group.getSelection()==rb1.getModel()){
text.setText("你选择的是音乐");
}
if(group.getSelection()==rb2.getModel()){
text.setText("你选择的是体育");
}
if(group.getSelection()==rb3.getModel()){
text.setText("你选择的是文学");
}
}
}

看看这个是你需要的吗

Answer 2

Frame f = new Frame();
CheckboxGroup sexGroup = new CheckboxGroup();

JPanel p = new JPanel();
Checkbox boy = new Checkbox("boy", sexGroup, false);
Checkbox gril = new Checkbox("girl", sexGroup, true);

p.add(boy);
p.add(gril);
f.add(p);

Answer 3

<Input type="radio" value="1" name="sex" >男<Input type="radio" value="0" name="sex">女

追问

能把代码发全么 我是初学者，网上找半天也没整出来！

Answer 4

/*
* 导入所需的包
*/
import javax.swing.*;
public class Show {
public static void main(String args[]) {
JFrame frame=new JFrame("单选按钮实例"); //创建窗口对象
JPanel panel=new JPanel(); //创建面板对象
ButtonGroup bg=new ButtonGroup(); //创建单选按钮组
JRadioButton male=new JRadioButton("男"); //创建单选按钮
JRadioButton female=new JRadioButton("女");
bg.add(male); //把单选按钮添加到组中
bg.add(female);
panel.add(male); //把按钮添加到面板中
panel.add(female);
frame.getContentPane().add(panel); //获取窗口的内容面板，将自定义面板添加进去
frame.setSize(220,200); //设置窗口大小
frame.setVisible(true); //显示窗口
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //设置关闭窗口操作
}
}