Question

## create a class Fruit (attributes: self, fname, fprice)

## create a class Customer (attributes: self, cname)

## create a class ShopCart(Customer) that inherits class Customer

## also, class ShopCart has attribute: self, customerName

## in class ShopCart, create methods such as:

## addItem(self, item, quantity)

## getQ(self, item), returns self.quantity

## balance(self), calculates the total purchased

## Still in ShopCart class, you should create these variables:

## total_purchase = 0

## items = []

## quantity = []

## Main program:

customerList = ["John", "Mary", "Bob", "Alice", "Joe", "Taylor"]

fruitList = ["apple, 1.00", "kiwi, 0.50", "grape, 1.99", "mango, 1.50", "strawberry, 0.75"]

Situation:

1. John purchases 5 apples, 3 lbs of grapes, 2 mangos
2. Mary purchases 2 apples, 10 mangos, 20 strawberries
3. Alice purchases 10 kiwis, 2 lbs of grapes

The program should print:

4.     The total for John is $xx.xx
5.     The total for Mary is $xx.xx
6.     The total for Alice is $xx.xx

Answer 1

class Fruit:
    """
    Fruit class
    """
    def __init__(self, fname, fprice):
        self.fname = fname
        self.fprice = float(fprice)

    # getters ans setters
    def get_name(self):
        return self.fname

    def get_price(self):
        return self.fprice


# customer class
class Customer:
    def __init__(self, cname):
        self.cname = cname

    def get_name(self):
        return self.cname


class ShopCart(Customer):
    def __init__(self, customerName):
        super().__init__(customerName)
        self.customerName = customerName
        self.total_purchase = 0
        self.items = []
        self.quantity = []

    def addItem(self, item, quantity):
        self.items.append(item)
        self.quantity.append(quantity)

    def getQ(self, item):
        ret = 0
        for c, i in enumerate(self.items):
            if i.get_name() == item.get_name():
                ret = self.quantity[c]
                break
        return ret

    def balance(self):
        total = 0
        for c, i in enumerate(self.items):
            total += self.quantity[c] * i.get_price()
        self.total_purchase = total
        return total


def main():
    customerList = ["John", "Mary", "Bob", "Alice", "Joe", "Taylor"]
    fruitList = ["apple, 1.00", "kiwi, 0.50", "grape, 1.99", "mango, 1.50", "strawberry, 0.75"]
    # creating fruits object
    fruit_obj = [Fruit(*x.split(',')) for x in fruitList]
    print(fruit_obj)
    cart1 = ShopCart(customerList[0])
    cart1.addItem(fruit_obj[0], 5)
    cart1.addItem(fruit_obj[2], 3)
    cart1.addItem(fruit_obj[3], 2)
    # create another object and try
    print(' The total for John is {}'.format( cart1.balance()))

if __name__ == '__main__':
    main()

#OUT

The total for John is 13.969999999999999