Get selected JRadioButton from ButtonGroup

Complete source code below will show you, how to get selected JRadioButton from ButtonGroup.

*************************************************************************
COMPLETE SOURCE CODE FOR : GetSelectedJRadioButtonFromButtonGroup.java
*************************************************************************

import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JOptionPane;
import javax.swing.AbstractButton;

import java.awt.BorderLayout;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

import java.util.Enumeration;

public class GetSelectedJRadioButtonFromButtonGroup implements ActionListener
{
//Create two radio button that will be put into a group
//Set start radio button selection to female
JRadioButton firstRadioButton=new JRadioButton("Female",true);
JRadioButton secondRadioButton=new JRadioButton("Male");

//Create a button with text ( What i select )
JButton button=new JButton("What i select");

//Create a window using JFrame with title ( Get selected JRadioButton from ButtonGroup)
JFrame frame=new JFrame("Get selected JRadioButton from ButtonGroup");

//Create a radio button group using ButtonGroup
ButtonGroup bg=new ButtonGroup();

public GetSelectedJRadioButtonFromButtonGroup()
{
 //Add all radio button into created group
 bg.add(firstRadioButton);
 bg.add(secondRadioButton);

 //Set JFrame layout to border layout
 frame.setLayout(new BorderLayout());

 //Create a panel that will be put radio button into it
 JPanel panel=new JPanel();

 //Add all created radio button into panel
 panel.add(firstRadioButton);
 panel.add(secondRadioButton);

 //Add action listener to created button
 button.addActionListener(this);

 //Add panel and button into JFrame
 frame.add(panel,BorderLayout.CENTER);
 frame.add(button,BorderLayout.SOUTH);

 //Set default close operation for JFrame
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

 //Set JFrame size
 frame.setSize(600,150);

 //Make JFrame visible
 frame.setVisible(true);
}

   //Action for button
   //Get selected JRadioButton from ButtonGroup
public void actionPerformed(ActionEvent event)
{
 if(event.getSource()==button)
 {
  Enumeration<AbstractButton> allRadioButton=bg.getElements();
 
  while(allRadioButton.hasMoreElements())
  {
   JRadioButton temp=(JRadioButton)allRadioButton.nextElement();
   if(temp.isSelected())
   {
    JOptionPane.showMessageDialog(frame,"You select : "+temp.getText());
   }
  }
 }
}

public static void main(String[]args)
{
 GetSelectedJRadioButtonFromButtonGroup gsjrbfbg=new  GetSelectedJRadioButtonFromButtonGroup();
}
}

*************************************************************************
JUST COMPILE AND EXECUTE IT
*************************************************************************