Question

Modify your code from the previous part so that once the customer finishes selection from the menu and sees the receipt, they are presented with one final menu. This menu should allow the customer to select the pay options. Their choices should be:

(a) Cash

(b) One time pay card

Again, the user should make their selection by entering the corresponding number, and bad selections should cause the menu to repeat. If customer chooses ‘Cash’ it should print that payment is completed and program should terminate. If the choice is ‘One time pay card’ then your program asks for 4-digit card number and displays the invoice as follows (see the sample output) and terminates.

Note:

To display the sample 4-digit number 2345 as ‘xx45’ you must not use any string processing functions. Instead, you should use arithmetic operators that we covered in class.

Sample output:

… it first prints similar content as shown before and then ……

How would you like to pay? Select one from the following menu.

(a) Cash

(b) Prepaid Card

> a

Thank you for your payment. Have a nice day!

Sample output:

… it first prints similar content as shown before and then ……

How would you like to pay? Select one from the following menu.

(a) Cash

(b) Prepaid Card

> b

Enter 4 digit card number: 2345

You have paid by xx45. Have a nice day!

Some considerations:

• Your output should be neatly formatted.

• You cannot assume the user enters good input. That is, they may enter non-integer values and integer values outside the acceptable range. Your program must handle these issues by printing an appropriate error message and repeating the menu until a proper value is entered.

use python

Answer 1

#Python program that prompts user to enter a choice of menu
#If user selects a then the print a message
#if user select b then prompt user for 4 digit number
#then find display message as shown in input.
def main():

#call menu function
choice=menu()
#check if choice is a
if choice=='a':
print('Thank you for your payment. Have a nice day!')
#check if choice is b
elif choice=='b':
repeat=True
#repeat till user enter a valid integer type input
while repeat:
try:
cardNum = int(input('Enter 4 digit card number:'))
repeat=False
except :
print('Invalid input.')
print('You have paid by xx%d .Have a nice day!'%(cardNum%100))
else:
print('Invalid choice')

#Function that display a menu of choices
#then prompt user to enter his choice
def menu():
print('How would you like to pay? Select one from the following menu.')
print('(a) Cash')
print('(b) Prepaid Card')
#read choice
choice=input('>')
return choice
#call main function
if __name__ == '__main__':
main()

Sample Output: