checkradio.java

我的一个ＪＡＶＡ作业

import java.awt.*;import java.awt.event.*;import javax.swing.*;
public class CheckRadio extends JFrame{
CheckRadio(){
Container content=getContentPane();
JPanel panel1=new JPanel();
JCheckBox check1= new JCheckBox("Check1",true);
JCheckBox check2= new JCheckBox("Check2");
panel1.add(check1);panel1.add(check2);

JPanel panel2=new JPanel();
ButtonGroup buttongroup1=new ButtonGroup();
JRadioButton radio1=new JRadioButton("Radio1",true);
JRadioButton radio2=new JRadioButton("Radio2");
buttongroup1.add(radio1);
buttongroup1.add(radio2);
panel2.add(radio1);panel2.add(radio2);
content.setLayout(new GridLayout(2,1));
content.add(panel1);content.add(panel2);}

 public static void main(String args[]){
CheckRadio f=new CheckRadio();
f.pack();
 f.setVisible(true);
 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}