Chapter 9

Section 9.1

• combine all we’ve learned to make a functional GUI
• events and listeners, containers, components, layout managers, special features
• layout managers specify how components are arranges in a container
• we’ve mostly used classes from the Abstract Windowing Toolkit package (java.awt)
• Java 2 introduces Swing classes, like JButton which has more functionality than Button class

Section 9.2

• Applet class can only show AWT components
• to show Swing components, must inherit from JApplet
• frame is free standing window that can be repositioned anywhere
• panel can’t be displayed on its own but can be added to a container
• can put graphics in applets and applications – applications need a container other than an applet to use as their window
• WindowEvent comes with a window, and has WindowListeners
• listing 9.1, 9.2, 9.3, p. 412-414

Section 9.3

• components have established preferred size, minimum size, and max size
• labels are text, images or both
• listing 9.4, 9.5, p. 416-417
• push buttons, check box, radio buttons
• radio buttons are mutually exclusive, check box buttons are not
• listing 9.6, 9.7, p. 419-423
• combo box allows several options, and can be editable or not
• listing 9.8, 9.9, p.425-428

Section 9.4

• layout manager governs how components are laid out in a container
• layout manager is consulted whenever container might need to change appearance
• many predefined ones, like flow, border, box, card, grid, gridbag and overlay
• flow puts components in a row
• border puts them in north, south, east, west and center
• box puts them horizontally or vertically in a row or column

Section 9.5

• can add special features like tool tips, borders and mnemonics

Section 9.6

• deciding what to add to your GUI has to do with knowing the user, preventing user errors, optimizing user abilities and being consistent