Listening for Changes to the Currently Selected Menu or Menu Item : MenuSelectionManager « Swing « Java Tutorial

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Java Tutorial » Swing » MenuSelectionManager   14. 28. 4. Listening for Changes to the Currently Selected Menu or Menu Item import javax.swing.MenuElement; import javax.swing.MenuSelectionManager; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class Main {   public static void main(String[] argv) throws Exception {     MenuSelectionManager.defaultManager().addChangeListener(         new ChangeListener() {           public void stateChanged(ChangeEvent evt) {             MenuSelectionManager msm = (MenuSelectionManager) evt.getSource();             MenuElement[] path = msm.getSelectedPath();             if (path.length == 0) {             }           }         });   } } 14. 28. MenuSelectionManager 14. 28. 1.  Using MenuSelectionManager to determine the current selection path. 14. 28. 2.  Getting the Currently Selected Menu or Menu Item 14. 28. 3.  Create a change listener and register with the menu selection manager 14. 28. 4.  Listening for Changes to the Currently Selected Menu or Menu Item