# Hierarchy For All Packages

Package Hierarchies:

- org.example.customer,
- org.example.customer.utility

## Class Hierarchy

- java.lang.Object
  - org.example.customer.utility.CustomerEntity (implements java.io.Serializable)
    - org.example.customer.Customer (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.example.customer.Order (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.example.customer.OrderItem (implements java.io.Serializable)
    - org.example.customer.Product (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.example.customer.Supplier (implements java.lang.Comparable<T>, java.io.Serializable)
  - org.example.customer.utility.Location (implements java.io.Serializable)
  - org.example.customer.utility.Phone (implements java.io.Serializable)