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Questions and Answers
Which of the following are included in the Swing components? (Select all that apply)
Which of the following are included in the Swing components? (Select all that apply)
- Scroll Panes (correct)
- Checkboxes (correct)
- Buttons (correct)
- Radio Buttons (correct)
Swing components are platform-specific.
Swing components are platform-specific.
False (B)
What does the term 'lightweight' refer to in Swing?
What does the term 'lightweight' refer to in Swing?
Elements that are not implemented by platform-specific code and are written entirely in Java.
The Swing version of an applet is called a _______.
The Swing version of an applet is called a _______.
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What is the purpose of the setBorder() method in Swing?
What is the purpose of the setBorder() method in Swing?
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Which method is used to provide tooltips in Swing?
Which method is used to provide tooltips in Swing?
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What kind of look-and-feel options does Swing provide?
What kind of look-and-feel options does Swing provide?
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Study Notes
Overview of Swing
- Swing is a class set offering more powerful, flexible GUI components than AWT.
- Components in Swing include buttons, check boxes, labels, tabbed panes, scroll panes, trees, and tables.
- Swing components are entirely platform-independent, enhancing portability.
Architectural Structure
- Swing components are built on top of AWT, leading to over 250 classes and 40 UI components.
- Key Swing components include:
- AbstractButton: Super-class for buttons.
- JApplet: The Swing version of Applet.
- JButton: Push button class.
- JCheckBox: Check box class.
- JComboBox: Combines drop-down list and text field.
- JLabel: Label class.
- JRadioButton: Radio button class.
- JScrollPane: Scrollable window encapsulation.
- JTabbedPane: Tabbed window control.
- JTable: Table-based control.
- JTextField: Text field class.
- JTree: Tree-based control.
Features of Swing
- Borders: Customizable drawing of borders around components via the
setBorder()method. - Graphics Debugging: Enabled through
setDebuggingGraphicsOptionsto visualize drawing operations. - Mouseless Operation: Simplified connection of keystrokes to components for easier interaction.
- Tooltips: Utilization of
setToolTipTextfor explanatory pop-ups when hovering over components. - Easy Scrolling: Scrolling functionality for components, surpassing AWT capabilities.
- Pluggable Look and Feel: Ability to alter the appearance of applications to a standard style (Windows, Motif, or Metal).
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