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Class java.awt.event.FocusAdapter

java.lang.Object
    |
    +----java.awt.event.FocusAdapter

public abstract class FocusAdapter

extends Object

implements FocusListener

Extend this class to create a FocusEvent listener and override the methods for the events of interest. (If you implement the FocusListener interface, you have to define all of the methods in it. This abstract class defines null methods for them all, so you can only have to define methods for events you care about.)

Create a listener object using the extended class and then register it with a component using the component's addFocusListener method. When the component gains or loses the keyboard focus, the relevant method in the listener object is invoked, and the FocusEvent is passed to it.

See Also:

FocusEvent, FocusListener, Tutorial: Writing a Focus Listener, Reference: The Java Class Libraries (update file)

FocusAdapter()

focusGained(FocusEvent)

Invoked when a component gains the keyboard focus.

focusLost(FocusEvent)

Invoked when a component loses the keyboard focus.

public FocusAdapter()

public void focusGained(FocusEvent e)

Invoked when a component gains the keyboard focus.

public void focusLost(FocusEvent e)

Invoked when a component loses the keyboard focus.

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