Aggregation & InheritanceLevel3|Assignment Set-5|Object Oriented Programming Using Python|NM|Infosys

#naanmudhalvan #infosys #springboard
#answers
#objectorientedprogrammingusingpython
#answersdotcom
#aggregation&inheritancelevel3
Problem Statement
PizzaForYou is a pizza store which sells different kinds of pizzas based on customer's order.
Customer can either collect the order in person or opt for a door delivery.
Write a python program based on the class diagram given below.

Customer class:

validate_quantity(): A customer can order 1 to 5 pizzas

If quantity is valid, return true. Else return false

Pizzaservice class:

Initialize static variable counter to 100

Attribute, additional_topping is a boolean value which indicates whether additional topping is required or not.True – additional topping is required, False – additional topping is not required

validate_pizza_type(): Customers can order "small" or "medium" type pizzas

If pizza type is valid, return true. Else return false

calculate_pizza_cost(): Calculate pizza cost

Validate pizza type and quantity
If valid,
Identify pizza cost based on details mentioned in the table
Set attribute, pizza_cost with the calculated pizza cost
Auto-generate service_id starting from 101 prefixed by first letter of pizza type. Example – S101, s102, m103, S104, M105 etc
If invalid, set pizza_cost to -1
PizzaType

Cost/Pizza(in Rs)

Additional topping cost/Pizza (in Rs), if applicable

Small

150

35

Medium

200

50



Doordelivery class:

validate_distance_in_kms(): Minimum distance for door delivery is 1km and maximum is 10kms
Validate distance_in_kms
If valid, return true. Else, return false
calculate_pizza_cost: Calculate pizza cost
Validate distance in kms
If valid,
Calculate pizza cost (Hint: Invoke overridden method in parent class)
If pizza_cost is not -1, identify delivery charge based on details mentioned below and add it to attribute, pizza_cost
Distance in kms

Delivery Charge in km(in Rs)

For first 5 kms

5

For remaining 5 kms

7

Else, set pizza_cost to -1

Note: Perform case insensitive string comparison
For testing :

Create objects of Pizzaservice and Doordelivery classes
Invoke calculate_pizza_cost() on Pizzaservice and Doordelivery objects
Display the details

[answersdotcom-bglx]

#OOPR-Assgn-30
#Start writing your code here

class Customer:
def __init__(self, customer_name, quantity):

self.__quantity=quantity

def get_customer_name(self):
return self.__customer_name

def get_quantity(self):
return self.__quantity

def validate_quantity(self):
if self.__quantity>=1 and self.__quantity<=5:
return True
return False


class Pizzaservice:
counter=100
def __init__(self, customer, pizza_type, additional_topping=False):
self.__service_id=None
self.__customer=customer
self.__pizza_type=pizza_type

self.pizza_cost=None

def validate_pizza_type(self):
if self.__pizza_type.lower() in ["small", "medium"]:
return True
return False

def calculate_pizza_cost(self):
if self.validate_pizza_type() and
Pizzaservice.counter+=1
if

if


if

if


else:
self.pizza_cost=-1

def get_service_id(self):
return self.__service_id

def get_customer(self):
return self.__customer

def get_pizza_type(self):
return self.__pizza_type

def
return self.__additional_topping

class Doordelivery(Pizzaservice):
def __init__(self, customer, pizza_type, additional_topping, distance_in_kms):
super().__init__(customer, pizza_type, additional_topping)
self.__delivery_charge=None


def
if self.__distance_in_kms>=1 and self.__distance_in_kms<=10:
return True
return False

def calculate_pizza_cost(self):
if

if self.pizza_cost != -1:
if self.__distance_in_kms<=5:

else:


else:
self.pizza_cost=-1

def get_delivery_charge(self):
return self.__delivery_charge

def get_distance_in_kms(self):
return self.__distance_in_kms