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Chapter 21 java.awt.event Reference |
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Chapter 21 java.awt.event Reference |
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![[Graphic: Figure from the text]](./figs/focusli.gif)
Objects that implement the FocusListener interface can receive FocusEvent objects. Listeners must first register themselves with objects that produce events. When events occur, they are then automatically propagated to all registered listeners.
public abstract interface java.awt.event.FocusListener
extends java.util.EventListener {
// Instance Methods
public abstract void focusGained (FocusEvent e);
public abstract void focusLost (FocusEvent e);
}
The component event that occurred.
Notifies the FocusListener that a component gained the input focus.
The component event that occurred.
Notifies the FocusListener that a component lost the input focus.
AWTEventMulticaster, EventListener, FocusAdapter, FocusEvent
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| FocusEvent |
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InputEvent |
