For this assignment, the output is incorrect, e.g.:

For Service 1: "-" is entered.

For Service 2: Car Wash or Car wax or Oil change is entered.

The Output is incorrect(backward)

Service 2: Car wash, $7

Service 1: No service

Total: $7

The code:

#4.10 Program: Automobile service invoice (Python 3)

#Implementation of automativeService class

#START

class automativeService():

#Implementation of displayInvoice method

def displayInvoice(self):

#Display statements

print("Davy's auto shop services")

print("Oil change -- $35")

print("Tire rotation -- $19")

print("Car wash -- $7")

print("Car wax -- $12")

#Get the input

print()

service1 = input("Select first service: ")

service2 = input(" Select second service: ")

print()

#Declare the dictionary and initailize it

dic ={"Oil change":"35","Tire rotation":"19","Car wash":"7","Car wax":"12"}

#Declare the total and assign zero

total = 0

#Display statements

print()

print("Davy's auto shop invoice")

print()

#Iterate the dictionary values

for key,value in dic.items():

if(service1 == key):

print ("Service 1:",key+str(", $")+dic[key])

total = total + int(dic[key])

if(service2 == key):

print("Service 2:",key+str(", $")+dic[key])

total = total + int(dic[key])

#if the service1 value is - then it display No service

if(service1 == "-"):

print("Service 1:","No service")

#if the service2 value is - then it display No service

if(service2 == "-"):

print("Service 2:","No service")

print()

#Display the total

print("Total: $%.f" % total)

#Create an object for automativeService class

object1 = automativeService()

#call the method displayInvoice through while loop up to number of times

object1.displayInvoice()

#END