Determining the Selected JRadioButton in a Button Group : JRadioButton « Swing « Java Tutorial

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Java Tutorial » Swing » JRadioButton   14. 9. 4. Determining the Selected JRadioButton in a Button Group import java.util.Enumeration; import javax.swing.ButtonGroup; import javax.swing.JRadioButton; public class Main {   public static void main(String[] argv) throws Exception {   }   public static JRadioButton getSelection(ButtonGroup group) {     for (Enumeration e = group.getElements(); e.hasMoreElements();) {       JRadioButton b = (JRadioButton) e.nextElement();       if (b.getModel() == group.getSelection()) {         return b;       }     }     return null;   } } 14. 9. JRadioButton 14. 9. 1.  Creating JRadioButton Components 14. 9. 2.  Using JRadioButton 14. 9. 3.  Grouping JRadioButton Components in a ButtonGroup 14. 9. 4.  Determining the Selected JRadioButton in a Button Group 14. 9. 5.  Listening to JRadioButton Events with an ActionListener 14. 9. 6.  Reference to the last selected item and check for reselection 14. 9. 7.  Listening to JRadioButton Events with a ChangeListener 14. 9. 8.  Listening to JRadioButton Events with an ItemListener 14. 9. 9.  Event sequence: Action Event, Item Event and Change Event 14. 9. 10.  Getting selected JRadioButton in a container 14. 9. 11.  Customizing JRadioButton Look and Feel