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- All Known Implementing Classes:
public interface HierarchyListener extends EventListenerThe listener interface for receiving hierarchy changed events. The class that is interested in processing a hierarchy changed event should implement this interface. The listener object created from that class is then registered with a Component using the Component's
addHierarchyListenermethod. When the hierarchy to which the Component belongs changes, the
hierarchyChangedmethod in the listener object is invoked, and the
HierarchyEventis passed to it.
Hierarchy events are provided for notification purposes ONLY; The AWT will automatically handle changes to the hierarchy internally so that GUI layout, displayability, and visibility work properly regardless of whether a program registers a
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