public interface: FocusListener
All Implemented Interfaces:
The listener interface for receiving keyboard focus events on
The class that is interested in processing a focus event
either implements this interface (and all the methods it
contains) or extends the abstract
(overriding only the methods of interest).
The listener object created from that class is then registered with a
component using the component's
method. When the component gains or loses the keyboard focus,
the relevant method in the listener object
is invoked, and the
is passed to it.
|Method from java.awt.event.FocusListener Detail:|
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.