GUI Radio Button (Window Builder)

import java.awt.BorderLayout;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.border.EmptyBorder;

import javax.swing.JButton;

import javax.swing.JRadioButton;

public class RadioButtonSample2 extends JFrame {

private JPanel contentPane;

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

RadioButtonSample2 frame = new RadioButtonSample2();

frame.setVisible(true);

} catch (Exception e) {

e.printStackTrace();

}

}

});

}

public RadioButtonSample2() {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100, 100, 450, 300);

contentPane = new JPanel();

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

setContentPane(contentPane);

contentPane.setLayout(null);

JButton btnNewButton = new JButton("Ok");

btnNewButton.setBounds(193, 212, 117, 29);

contentPane.add(btnNewButton);

JRadioButton rdbtnNewRadioButton = new JRadioButton("Option 1");

rdbtnNewRadioButton.setBounds(169, 59, 141, 23);

contentPane.add(rdbtnNewRadioButton);

rdbtnNewRadioButton.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JOptionPane.showMessageDialog(null, "This is the " + e.getActionCommand() + " radio button.");

}

});

}

}