Полезная информация

Java Fundamental Classes Reference

Previous Chapter 17
The java.util Package
Next
 

EventListener

Name

EventListener

Synopsis

Interface Name:

java.util.EventListener

Super-interfaces:

None

Immediate Sub-interfaces:

java.awt.event.ActionListener,

java.awt.event.AdjustmentListener,

java.awt.event.ComponentListener,

java.awt.event.ContainerListener,

java.awt.event.FocusListener,

java.awt.event.ItemListener,

java.awt.event.KeyListener,

java.awt.event.MouseListener,

java.awt.event.MouseMotionListener,

java.awt.event.TextListener,

java.awt.event.WindowListener

Implemented by:

None

Availability:

New as of JDK 1.1

Description

In order for instances of a class to receive events, the class must implement the EventListener interface. It is a semantic interface, meaning that it declares no methods. Classes do not normally implement the EventListener interface directly, but instead implement an interface that extends EventListener.

Prior to Java 1.1, events could only be delivered to AWT components. Java 1.1 introduces a new event model that allows events to be delivered to any object that implements a listener interface and registers to receive events from a particular source.

Interface Declaration

public abstract interface java.util.EventListener {
}

See Also

ActionListener, AdjustmentListener, ComponentListener, ContainerListener, FocusListener, ItemListener, KeyListener, MouseListener, MouseMotionListener, TextListener, WindowListener


Previous Home Next
Enumeration Book Index EventObject

Java in a Nutshell Java Language Reference Java AWT Java Fundamental Classes Exploring Java