Chapter 21
java.awt.event Reference

FocusAdapter

Name

FocusAdapter (New)

[Graphic: Figure from the text]

Description

The FocusAdapter class implements the methods of FocusListener with empty functions. It may be easier for you to extend FocusAdapter, overriding only those methods you are interested in, than to implement FocusListener and provide the empty functions yourself.

Class Definition

public abstract class java.awt.event.FocusAdapter
   extends java.lang.Object
   implements java.awt.event.FocusListener {
  // Instance Methods
  public void focusGained (FocusEvent e);
  public void focusLost (FocusEvent e);
}

Instance Methods

focusGained

public void focusGained (FocusEvent e)

Parameters

e: The event that has occurred.

Description

Does nothing. Override this function to be notified when a component gains focus.

focusLost

public void focusLost (FocusEvent e)

Parameters

e: The event that has occurred.

Description

Does nothing. Override this function to be notified when a component loses focus.