please help me with the $1$st phase the use case and classs diagram what to include in the class diagram with right OOP relationship and getter setters

You are required to develop a program to manage an online shopping system. You should implement a console system from where the manager can add new products, delete if needed, print and save them as described in detail below. You should implement a Graphical User Interface $($GUI$)$ from where a user can select different products, add them to the shopping cart and visualise the final price, etc., as described below.

Design and class implementation $($Phase $1)$

The design of your system should be consistent with the Object$-$oriented principles and easy to understand by an independent

programmer.

You are required to design your program using UML diagrams. In particular, you have to draw:

A UML use case diagram for the system

A UML class diagram

Read carefully the following requirements. It is important that you follow the specifications, and your design and

implementation must comply with these.

According to the Inheritance and encapsulation principles, you have to design and implement a super$-$class Product and the

subclasses Electronics and Clothing. Also, you will have to add at least one constructor for each class.

The class Product should be abstract and include appropriate get$/$set methods and hold information about the product ID

$($mix of characters and numbers$),$ product name, number of available items and the price $.($You can add any other

information that you consider appropriate$).$

In particular:

The Electronics subclass should hold specific information and methods. You should add the brand and the warranty

period as instance variables, constructors, and the relative get$/$set methods $.$

The Clothing subclass should hold specific information and methods. You should add the size and colour as instance

variables $($attribute$),$ constructors and the relative get$/$set methods $.$

You should implement a class User to represent the user account. The class should hold information about the

username and password, constructors, and the relative get$/$set methods $.$

You should implement a class ShoppingCart to represent the user's cart. The class should contain a list of products

as instance variable, there should be methods to add, remove and calculate the total cost

$$ Design and implement a class called HolalShoppingManager, which implements the interface ShoppingManager $.$ HoalShoppingManager maintains the list of the products in the system and provides all the methods for the system manager defined in the console menu..