Creating Radio Buttons

 
 ButtonGroup group = new ButtonGroup();
     
 JRadioButton b1 = new JRadioButton("Label1");
 b1.addActionListener(actionListener);
 group.add(b1);
     
 JRadioButton b2 = new JRadioButton("Label2");
 b2.addActionListener(actionListener);
 group.add(b2);
     
 // Set one of the radio buttons on.
 group.setSelected(b1.getModel(), true);