求一段JAVA代码(实例代码)

import java.awt.event.*;

import java.util.ArrayList;

import java.util.List;

import javax.swing.*;

public class FrameTest {

public static void main(String[] args) {

new F();

}

}

class F extends JFrame implements ActionListener {

JCheckBox[] jCheckBoxs;

JRadioButton[] JRadioButtons;

ButtonGroup g;

JButton bt1,bt2;

F() {

this.setBounds(100, 300, 400, 150);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.getContentPane().setLayout(new java.awt.GridLayout(3, 3));

jCheckBoxs = new JCheckBox[3];

jCheckBoxs[0] = new JCheckBox("足球", true);// 默认为选中

jCheckBoxs[1] = new JCheckBox("篮球");

jCheckBoxs[2] = new JCheckBox("羽毛球");

jCheckBoxs[0].addActionListener(this);

jCheckBoxs[1].addActionListener(this);

jCheckBoxs[2].addActionListener(this);

add(jCheckBoxs[0]);

add(jCheckBoxs[1]);

add(jCheckBoxs[2]);

JRadioButtons = new JRadioButton[3];

JRadioButtons[0] = new JRadioButton("足球", true);

JRadioButtons[1] = new JRadioButton("篮球");

JRadioButtons[2] = new JRadioButton("羽毛球");

JRadioButtons[0].addActionListener(this);

JRadioButtons[1].addActionListener(this);

JRadioButtons[2].addActionListener(this);

add(JRadioButtons[0]);

add(JRadioButtons[1]);

add(JRadioButtons[2]);

g = new ButtonGroup();

g.add(JRadioButtons[0]);

g.add(JRadioButtons[1]);

g.add(JRadioButtons[2]);

bt1 = new JButton("OK");

add(bt1);

bt2 = new JButton("Exit");

bt1.addActionListener(this);

bt2.addActionListener(this);

setVisible(true);

}

private String checkSelectJRadioButton(){

String str = "你选择的单选框为：\n";

for(int i=0;i<JRadioButtons.length;i++){

if(JRadioButtons[i].isSelected()){

str = str+JRadioButtons[i].getText();

break;

}

}

return str;

}

private List checkSelectJCheckBox(){

List list = new ArrayList();

int num = 0;

for(num=0;num<3;num++){

if(jCheckBoxs[num].isSelected()){

list.add(jCheckBoxs[num].getText());

}

}

return list;

}

private String message(){

List list = checkSelectJCheckBox();

String str = "您选择的复选框为：\n";

for(int i=0;i<list.size();i++){

str = str+list.get(i)+"\n";

}

return str;

}

public void actionPerformed(ActionEvent e) {

if (e.getActionCommand().equals("OK")) {

JOptionPane.showConfirmDialog(null, message()+checkSelectJRadioButton(), "提示！",

JOptionPane.OK_OPTION);

return;

}

if(e.getActionCommand().equals("Exit")){

System.exit(1);

}

}

}

是这种吗？