Question

Define a class ITEMINFO in Python with the following description:

ICode (Item Code)
Item (Item Name)
Price (Price of each item)
Qty (quantity in stock)
Discount (Discount percentage on the item)
Netprice (Final Price)

Methods

→ A member function FindDisc( ) to calculate discount as per the following rule:

If Qty<=10         Discount is 0
If Qty (11 to 20)         Discount is 15
If Qty>=20         Discount is 20

→ A constructor( __init__ method) to assign the value with 0 for ICode, Price, Qty, Netprice and Discount and null for Item respectively

→ A function Buy( ) to allow user to enter values for ICode, Item, Price, Qty and call function FindDisc( ) to calculate the discount and Netprice(Price*Qty-Discount).

→ A Function ShowAll( ) to allow user to view the content of all the data members.

Answer 1

Logic: find_disc() determines the discount percentage from quantity. buy() accepts item details, calls find_disc(), computes the discount amount and then calculates netprice.

Note: At quantity 20, the stated conditions overlap. The program correctly treats quantity 20 and above as eligible for 20% discount.

class ItemInfo:
    def __init__(self):
        # Initialise numeric members with 0 and Item with an empty string
        self.icode = 0
        self.item = ""
        self.price = 0.0
        self.qty = 0
        self.discount = 0
        self.netprice = 0.0

    def find_disc(self):
        # Determine discount percentage from quantity
        if self.qty <= 10:
            self.discount = 0
        elif self.qty < 20:
            self.discount = 15
        else:
            self.discount = 20

    def buy(self):
        # Accept item details
        self.icode = int(input("Enter item code: "))
        self.item = input("Enter item name: ")
        self.price = float(input("Enter price per item: "))
        self.qty = int(input("Enter quantity: "))

        self.find_disc()

        # Calculate net price after discount
        total_price = self.price * self.qty
        discount_amount = total_price * self.discount / 100
        self.netprice = total_price - discount_amount

    def show_all(self):
        # Display all data members
        print("Item Code:", self.icode)
        print("Item Name:", self.item)
        print("Price per Item:", self.price)
        print("Quantity:", self.qty)
        print("Discount (%):", self.discount)
        print("Net Price:", self.netprice)


item1 = ItemInfo()
item1.buy()
item1.show_all()

For example, if price is 100, quantity is 20, the discount is 20% and net price is 1600.0.