Overview: In this lab, you will develop a program that can calculate the total of a purchase from a farmer's market that sells apples, bananas, and oranges. At this particular market, apples are $1.99/lb., bananas are $0.99/lb., and oranges are $1.50/lb. Users should be able to specify the weight of apples, bananas, and oranges they plan to purchase and get a total of their purchase including a 5% charge of sales tax.

Let's assume that the only person who will use your program is the cashier at the market. She may need to ring up a customer or she might need to change the price per weight of each fruit as the value changes (market prices fluctuate from time to time). Your program should allow her to choose the following options:
1. Ring up a customer (this will allow her to calculate how much a user owes given the total amount of fruit they want to purchase).
2. Change the price of the fruit (this will allow her to change the value of apples per lb. from $1.99 to $1.80 if necessary.)
3. Quit the program.
The user should be able to access options 1 and 2 as often as they want until they choose option 3. At that point, the program should terminate. Make sure you thoroughly read and understand the directions before you begin.
Program Specifications
You must write the program in the following ways.
? Write comments at the beginning of the program to specify author, date, description etc.
? In the main function:
do {
call printMenu function and get the choice as the return value
if the choice is 1,
call getData function to get the weight of each fruit
call computeTotal function to calculate the total amount should be paid
call printPurchase function to print the detailed receipt
else if the choice is 2
call changeFruitPrice function to assign new price per pound for each fruit.
) while choice is not equal to 3;
? printMenu function:
This function will print a menu with the options to 1. Ring up a customer, 2. Change the prices of fruit per lb. 3. Quit the program. The function should return the user's choice back to the caller (main function)
? computeTotal function:
This function will take the weight and the price of all three fruits as parameters and compute
the total price that include a 5% sales tax. The function then will return the total price back to
the called (the main function).
Hint: the total price can be computed as the following:
(priceBanana * weightBanana + priceApple * weightApple + pricOrange * weightOrange)
*(1+0.05)
? printPurchase function:
This function will print a detailed receipt for the information of purchase and the total amount
should be paid.
? changeFruitPrice function:
This function that will let the user change the value of apples, oranges, and bananas per pound.
All price changed should be passed back through reference variables. You can set it up so that
the user has to enter in all of the values or, for extra credit, you can add another menu that
prompts the user to select whether they want to change the price of apples, oranges, or
bananas.