Extend this class to create a ContainerEvent
listener
and override the methods for the events of interest. (If you implement the
ContainerListener
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 addContainerListener
method. When the container's contents change because a component has
been added or removed, the relevant method in the listener object is invoked,
and the ContainerEvent
is passed to it.
ContainerEvent
, ContainerListener
, Tutorial: Writing a Container Listener
Access | Constructor and Description |
---|---|
protected |
Modifier and Type | Method and Description |
---|---|
public void | componentAdded(ContainerEvent
the event to be processed e)Implements java. |
public void | componentRemoved(ContainerEvent
the event to be processed e)Implements java. |
ContainerAdapter | back to summary |
---|---|
protected ContainerAdapter() Constructs a |
componentAdded | back to summary |
---|---|
public void componentAdded(ContainerEvent e) Implements java. Invoked when a component has been added to the container.
|
componentRemoved | back to summary |
---|---|
public void componentRemoved(ContainerEvent e) Implements java. Invoked when a component has been removed from the container.
|