Add Mnemonic Key for JRadioButton in Java

 /*from www.j  av  a  2s . co m*/
import java.awt.GridLayout;
import java.awt.event.KeyEvent;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;

public class Main {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Grouping Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel panel = new JPanel(new GridLayout(0, 1));

    ButtonGroup group = new ButtonGroup();
    JRadioButton aRadioButton = new JRadioButton("A");
    JRadioButton bRadioButton = new JRadioButton("B");
    bRadioButton.setMnemonic(KeyEvent.VK_B);

    panel.add(aRadioButton);
    group.add(aRadioButton);
    panel.add(bRadioButton);
    group.add(bRadioButton);

    frame.add(panel);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}