Question $1$

$[20$ marks$]$

You are building an e$-$commerce application for a store that sells various products.

Each product has attributes like name, price, and quantity. Products are categorised

as clothing, electronics, and books. There are also ongoing category discounts

$($percentage off$)$ that apply to all products within that category.

Instructions:

Product Class: Define a class named Product with the following properties:

name $($string$)$

price $($float$)$

quantity $($integer$)$

Category Class: Define a class named Category with the following properties:

name $($string$)$

discount $($float$,$ percentage between $0$ and $1)$

DiscountedProduct Class: Create a class named DiscountedProduct that

inherits from the Product class. It should have an additional property:

category $($object of the Category class$)$

Multidimensional Array: Create a multidimensional array named $products

where the first dimension represents categories $($keys are category names$)$ and

the second dimension is an array of DiscountedProduct objects belonging to that

category.

Discount Application: Write a function named calculateDiscountedPrice that

takes a DiscountedProduct object as input. It should calculate the final price after

applying the category discount as follows:

Final price $=$ price $*-$ category.discount