Interface java.awt.event.FocusListener - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Interface java.awt.event.FocusListener

public interface FocusListener
extends EventListener

The listener interface for receiving keyboard focus events on a component.

focusGained(FocusEvent): Invoked when a component gains the keyboard focus.
focusLost(FocusEvent): Invoked when a component loses the keyboard focus.

focusGained

 public abstract void focusGained(FocusEvent e)

Invoked when a component gains the keyboard focus.

focusLost

 public abstract void focusLost(FocusEvent e)

Invoked when a component loses the keyboard focus.

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