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

- Packages that use HierarchyListener
  Package | Description
  --- | ---
  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
    Modifier and Type | Class | Description
    --- | --- | ---
    `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
    Modifier and Type | Method | Description
    --- | --- | ---
    `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
    Modifier and Type | Method | Description
    --- | --- | ---
    `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.