This lab accompanies Chapter 5 of Gaddis, T. (2016). Starting out with programming logic and design (4th ed.). Boston, MA: Addison-Wesley.
Write the Flowchart for the following programming problem and the pseudocode below.
· Your menu items only include the following food with accompanied price:
· Yum Yum Burger = .99
· Grease Yum Fries = .79
· Soda Yum = 1.09
· Allow the user of the program to purchase any quantity of these items on one order.
· Allow the user of the program to purchase one or more types of these items on one order.
· After the order is placed, calculate total and add a 6% sales tax.
· Print to the screen a receipt showing the total purchase price.
Your sample output might look as follows:
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->1
Enter the number of burgers you want 3
Do you want to end your order? (Enter yes or no): no
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->3
Enter the number of sodas you want 2
Do you want to end your order? (Enter yes or no): no
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->1
Enter the number of burgers you want 1
Do you want to end your order? (Enter yes or no): no
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->2
Enter the number of fries you want 2
Do you want to end your order? (Enter yes or no): yes
The total price is $ 8.1832
Do you want to end program? (Enter no to process a new order): no
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->2
Enter the number of fries you want 2
Do you want to end your order? (Enter yes or no): no
Enter 1 for Yum Yum Burger
Enter 2 for Grease Yum Fries
Enter 3 for Soda Yum
Enter now ->3
Enter the number of sodas you want 2
Do you want to end your order? (Enter yes or no): yes
The total price is $ 3.9856
Do you want to end program? (Enter no to process a new order): yes
The Pseudocode
Module main()
Call declareVariables(endProgram, endOrder, totalBurger, totalFry, totalSoda, total, tax, subtotal, option, burgerCount, fryCount, sodaCount)
//Loop to run program again
While endProgram == “no”
Call resetVariables(totalBurger, totalFry, totalSoda, total, tax, subtotal)
//Loop to take in order
While endOrder == “no”
Display “Enter 1 for Yum Yum Burger”
Display “Enter 2 for Grease Yum Fries”
Display “Enter 3 for Soda Yum”
Input option
If option == 1 Then
Call getBurger(totalBurger, burgerCount)
Else If option == 2 Then
Call getFry(totalFry, fryCount)
Else If option == 3 Then
Call getSoda(totalSoda, sodaCount)
End If
Display “Do you want to end your order? (Enter no to add more items: )”
Input endOrder
End While
Call calcTotal(burgerTotal, fryTotal, sodaTotal, total, subtotal, tax)
Call printReceipt(total)
Display “Do you want to end the program? (Enter no to process a new order)”
Input endProgram
End While
End Module
Module declareVariables(String Ref endProgram, String Ref endOrder, Real Ref totalBurger, Real Ref totalFry, Real Ref totalSoda, Real Ref total, Real Ref tax, Real Ref subtotal, Real Ref option, Real Ref burgerCount, Real Ref fryCount, Real Ref sodaCount)
Declare String endProgram = “no”
Declare String endOrder = “no”
Declare Real totalBurger = 0
Declare Real totalFry = 0
Declare Real totalSoda = 0
Declare Real total = 0
Declare Real tax = 0
Declare Real subtotal = 0
Declare Integer option = 0
Declare Integer burgerCount = 0
Declare Integer fryCount = 0
Declare Integer sodaCount = 0
End Module
Module resetVariables (Real Ref totalBurger, Real Ref totalFry, Real Ref totalSoda, Real Ref total, Real Ref tax, Real Ref subtotal)
//reset variables
totalBurger = 0
totalFry = 0
totalSoda = 0
total = 0
tax = 0
subtotal = 0
End Module
Module getBurger(Real Ref totalBurger, Integer burgerCount)
Display “Enter the number of burgers you want”
Input burgerCount
Set totalBurger = totalBurger + burgerCount * .99
End Module
Module getFry(Real Ref totalFry, Integer fryCount)
Display “Enter the number of fries you want”
Input fryCount
Set totalFry = totalFry + fryCount * .79
End Module
Module getSoda(Real Ref totalSoda, Integer sodaCount)
Display “Enter the number of sodas you want”
Input sodaCount
Set totalSoda = totalSoda + sodaCount * 1.09
End Module
Module calcTotal(Real totalBurger, Real totalFry, Real totalSoda, Real Ref total, Real subtotal, Real tax)
Set subtotal = totalBurger + totalFry + totalSoda
Set tax = subtotal * .06
Set total = subtotal + tax
End Module
Module printReceipt(Real total)
Display “Your total is $”, total
End Module
The Flowchart
PASTE FLOWCHART HERE
The Python Code for Review
#the main function
def main():
endProgram = 'no'
print
while endProgram == 'no':
totalBurger = 0
totalFry = 0
totalSoda = 0
endOrder = 'no'
while endOrder == 'no':
print
print 'Enter 1 for Yum Yum Burger'
print 'Enter 2 for Grease Yum Fries'
print 'Enter 3 for Soda Yum'
option = input('Enter now ->')
if option == 1:
totalBurger = getBurger(totalBurger)
elif option == 2:
totalFry = getFry(totalFry)
elif option == 3:
totalSoda = getSoda(totalSoda)
else:
print 'You have entered an invalid option!!!'
endOrder = raw_input('Do you want to end your order? (Enter yes or no): ')
print
total = calcTotal(totalBurger, totalFry, totalSoda)
printReceipt(total)
endProgram = raw_input('Do you want to end program? (Enter no to process a new order): ')
#this function will get burger order
def getBurger(totalBurger):
burgerCount = input('Enter the number of burgers you want ')
totalBurger = totalBurger + burgerCount * .99
return totalBurger
#this function will get fry order
def getFry(totalFry):
fryCount = input('Enter the number of fries you want ')
totalFry = totalFry + fryCount * .79
return totalFry
def getSoda(totalSoda):
sodaCount = input('Enter the number of sodas you want ')
totalSoda = totalSoda + sodaCount * 1.09
return totalSoda
def calcTotal(totalBurger, totalFry, totalSoda):
subtotal = totalBurger + totalFry + totalSoda
tax = subtotal * .06
total = subtotal + tax
return total
def printReceipt(total):
print 'The total price is $', total
# calls main
main()