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Tip of the Day
Language: AWT
Expertise: Beginner
Sep 15, 1998



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Setting textfield focus

I have an initially disabled TextField on a frame. When the user clicks a specific button the TextField is enabled. How do I set the input focus to the TextField ?

After you press the button that enables the text field, the button retains the input focus. To assign the focus to the TextField, you must invoke requestFocus() on the TextField. This method is buried in java.awt.Component, which is why Java programmers sometimes get stumped on how to change the input focus of a component. It is well worth the time to become acquainted with all of the methods defined in java.awt.Component and java.awt.Container, which define the basic functions common to all components.

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