Java Swing action on JRadioButtons

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class RadioButtons extends JFrame {
  private JRadioButton b1, b2, b3;

  public RadioButtons() {
    setLayout(null);
    ButtonGroup group = new ButtonGroup();
    b1 = new JRadioButton("home appliances");
    b2 = new JRadioButton("kitchen appliances");
    b3 = new JRadioButton("other appliances");

    group.add(b1);
    group.add(b2);
    group.add(b3);
   b1.setBounds(10,10,100,20);
   b2.setBounds(10,40,100,20);
   b3.setBounds(10,70,100,20);
    add(b1);
    add(b2);
    add(b3);
    b1.addActionListener(new MyAction());
    b2.addActionListener(new MyAction());
    b3.addActionListener(new MyAction());

    setSize(300,150);
    setVisible(true);
  }

  public static void main(String[] args) {
   new RadioButtons();
    }

public class MyAction implements ActionListener{
    public void actionPerformed(ActionEvent e){
     JOptionPane.showMessageDialog(null,"You have selected " + e.getActionCommand());
    }
  }
}

For more information, visit the link JRadioButtons Example