java.awt.event
Interface ContainerListener
- All Known Implementing Classes:
- AWTEventMulticaster, Component.NativeInLightFixer, ContainerAdapter
- public abstract interface ContainerListener
- extends EventListener
The listener interface for receiving container events.
The class that is interested in processing a container event
either implements this interface (and all the methods it
contains) or extends the abstract ContainerAdapter class
(overriding only the methods of interest).
The listener object created from that class is then registered 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.
Container events are provided for notification purposes ONLY;
The AWT will automatically handle add and remove operations
internally so the program works properly regardless of
whether the program registers a ComponentListener or not.
- See Also:
ContainerAdapter,
ContainerEvent,
Tutorial: Writing a Container Listener,
Reference: The Java Class Libraries (update file)
componentAdded
public void componentAdded(ContainerEvent e)
- Invoked when a component has been added to the container.
componentRemoved
public void componentRemoved(ContainerEvent e)
- Invoked when a component has been removed from the container.