# Hierarchy For Package com.university.bookstore.service

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - com.university.bookstore.service.MaterialService
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - com.university.bookstore.service.MaterialService.InvalidMaterialException
        - com.university.bookstore.service.MaterialService.MaterialNotFoundException