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Tip of the Day
Language: User Interface Design
Expertise: Beginner
Mar 31, 1998

Tool Tips

Question:
How do I get a tool tip to appear in a java application?

Answer:
Tool tips were not a part of the AWT packages in the 1.0.2 and 1.1 releases of Java. To use tool tips in a 1.0.2, you must either create your own custom tool tip code, or use a third party package. For a 1.1 application, the best thing to do is to start using the Swing classes. You can download the Swing classes as part of the Java Foundation Classes from JavaSoft's web site. Swing and the JFC are a standard part of the AWT packages in Java 1.2.

Many of the Swing components have builtin tool tip support. All you have to do to use them is call setToolTipText(String), defined in JComponent. For components that do not have builtin tool tip support, you may create a JToolTip instance, set its text with setTipText(String), and bind it to a component with setComponent(JComponent). To create your own custom tool tips, you may override the createToolTip() method in JComponent.

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