Question

Write a Python class definition called CellPhone to represent a monthly cell phone bill.

The bill should contain the following information:

• customer name (default value is the empty string)
• account number (default value is 0)
• number of gigabytes (GB) used over the monthly limit (default value is 0)

Include the following methods:

• a constructor which given a customer name, account number, and number of GB used in excess of the monthly limit, creates a CellPhone object (be sure to account for the default values).
• an accessor method for the account number
• a mutator method for the customer name
• a method that computes and returns the monthly charge calculated as follows:
  • a basic charge of $75
  • if the number of GB used over the monthly limit is 50GB or less then a surcharge of $20 applies
  • if the number of GB used over the monthly limit exceeds 50GB, then the basic surcharge of $20 applies, and each GB over 50 is charged at $2 per GB.
  • 15% tax is added

Answer 1

The answer to this question is as follows:

The code is as follows:

class CellPhone:
def __init__(self, customer_name="", account_number=0,num_gb=0):
self.customer_name=customer_name
self.account_number=account_number
self.num_gb=num_gb
def getCustomerName(self):
return self.customer_name
def getAccountNumber(self):
return self.account_number
def getNumberOfGb(self):
return self.num_gb
def setCustomerName(self,customer_name):
self.customer_name=customer_name
def setAccountNumber(self,account_number):
self.account_number=account_number
def setNumberOfGb(self,num_gb):
self.num_gb=num_gb
def monthlyCharge(self):
if(self.num_gb<=50 and self.num_gb>0):
return 75+20
elif(self.num_gb>50):
amount=(75+20+(self.num_gb-50)*2)
tax_amount=amount*0.15
return amount+tax_amount
c1=CellPhone("max",123456,50)
print("The bill details is as follows")
print("The customer name: ",c1.getCustomerName())
print("The account number is :",c1.getAccountNumber())
print("The number of gb used is: ",c1.getNumberOfGb())
print("The monthly charge for the usage is ",c1.monthlyCharge())
  
The input and output are provided in the screenshot below: