February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Using Menus in an Application
Figures 22.5–22.6 demonstrate various menu items and how to specify special characters called mnemonics that can provide quick access to a menu or menu item from the keyboard. Mnemonics can be used with all subclasses of javax.swing.AbstractButton. Class MenuFrame (Fig. 22.5) creates the GUI and handles the menu-item events. Most of the code in this application appears in the class’s constructor (lines 34–151).
1 // Fig. 22.5: MenuFrame.java 2 // Demonstrating menus. 3 import java.awt.Color; 4 import java.awt.Font; 5 import java.awt.BorderLayout; 6 import java.awt.event.ActionListener; 7 import java.awt.event.ActionEvent; 8 import java.awt.event.ItemListener; 9 ...
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