## Uses of Interface
java.awt.event.HierarchyListener

Packages that use HierarchyListener
java.awt: Contains all of the classes for creating user interfaces and for painting graphics and images.

### Uses of HierarchyListener in java.awt

Classes in java.awt that implement HierarchyListener
`class` `AWTEventMulticaster` `AWTEventMulticaster` implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the `java.awt.event` package.

Methods in java.awt that return HierarchyListener
`static HierarchyListener` AWTEventMulticaster.`add(HierarchyListener a, HierarchyListener b)` Adds hierarchy-listener-a with hierarchy-listener-b and returns the resulting multicast listener.
`HierarchyListener[]` Component.`getHierarchyListeners()` Returns an array of all the hierarchy listeners registered on this component.
`static HierarchyListener` AWTEventMulticaster.`remove(HierarchyListener l, HierarchyListener oldl)` Removes the old hierarchy-listener from hierarchy-listener-l and returns the resulting multicast listener.

Methods in java.awt with parameters of type HierarchyListener
`static HierarchyListener` AWTEventMulticaster.`add(HierarchyListener a, HierarchyListener b)` Adds hierarchy-listener-a with hierarchy-listener-b and returns the resulting multicast listener.
`void` Component.`addHierarchyListener(HierarchyListener l)` Adds the specified hierarchy listener to receive hierarchy changed events from this component when the hierarchy to which this container belongs changes.
`static HierarchyListener` AWTEventMulticaster.`remove(HierarchyListener l, HierarchyListener oldl)` Removes the old hierarchy-listener from hierarchy-listener-l and returns the resulting multicast listener.
`void` Component.`removeHierarchyListener(HierarchyListener l)` Removes the specified hierarchy listener so that it no longer receives hierarchy changed events from this component.