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Chapter 21 java.awt.event Reference |
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ContainerEvent 
Name
ContainerEvent
![[Graphic: Figure from the text]](./figs/contai2.gif)
Description
Container events are fired off when a component is added to or removed from a container. The AWT automatically deals with adding components to containers; these events are provided only for notification.
Class Definition
public class java.awt.event.ContainerEvent
extends java.awt.event.ComponentEvent {
// Constants
public final static int COMPONENT_ADDED;
public final static int COMPONENT_REMOVED;
public final static int CONTAINER_FIRST;
public final static int CONTAINER_LAST;
// Constructors
public ContainerEvent (Component source, int id, Component child);
// Instance Methods
public Component getChild();
public Container getContainer();
public String paramString();
}
Constants
COMPONENT_ADDED
public final static int COMPONENT_ADDED
Event type ID indicating that a component was added to a container.
CONTAINER_FIRST
public final static int CONTAINER_FIRST
Specifies the beginning range of container event ID values.
CONTAINER_LAST
public final static int CONTAINER_LAST
Specifies the ending range of container event ID values.
COMPONENT_REMOVED
public final static int COMPONENT_REMOVED
Event type ID indicating that a component was removed from a container.
Constructors
ContainerEvent
public ContainerEvent (Component source, int id, Component child)
- Parameters
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- source
-
The object that generated the event.
- id
-
The event type ID of the event.
- child
-
The component that was added or removed.
- source
- Description
-
Constructs a ContainerEvent with the given characteristics.
Instance Methods
getChild
public Component getChild()
- Returns
-
The component that is being added or removed.
getContainer
public Container getContainer()
- Returns
-
The container for this event.
paramString
public String paramString()
- Returns
-
String with current settings of the ContainerEvent.
- Overrides
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ComponentEvent.paramString()
- Description
-
Helper method for toString() to generate string of current settings.
See Also
Component, ComponentEvent, Container, ContainerAdapter, ContainerListener
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| ContainerAdapter |
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ContainerListener |
