JRadioButton ButtonGroup In Java Example

            /* ............... START ............... */
                
import java.awt.FlowLayout;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JRadioButton;

public class JavaJRadioButtonButtonGroup extends JFrame {

	private static final long serialVersionUID = 1L;

	public JavaJRadioButtonButtonGroup() {

		this.getContentPane().setLayout(new FlowLayout());

		JRadioButton java = new JRadioButton("Java");
		JRadioButton c = new JRadioButton("C/C++");
		JRadioButton net = new JRadioButton(".NET");

		java.setSelected(true);
		ButtonGroup buttonGroup = new ButtonGroup();

		buttonGroup.add(java);
		buttonGroup.add(c);
		buttonGroup.add(net);

		add(java);
		add(c);
		add(net);
	}

	private static void createAndShowGUI() {
		JFrame frame = new JavaJRadioButtonButtonGroup();
		frame.pack();
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	public static void main(String[] args) {
		javax.swing.SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				createAndShowGUI();
			}
		});
	}
}

                /* ............... END ............... */