# Uses of Package
interfaces

- Packages that use interfaces
  Package | Description
  --- | ---
  ui.controller |
  ui.model |
  ui.view |

- Classes in interfaces used by ui.controller
  Class and Description
  CategoryListener Listener for Categories.
  ObjectListener Intercae for ObjectListener.

- Classes in interfaces used by ui.model
  Class and Description
  CategoryListener Listener for Categories.
  ObjectListener Intercae for ObjectListener.

- Classes in interfaces used by ui.view
  Class and Description
  CategoryListener Listener for Categories.