Question

An online retailer sells five products whose retail prices are
as follows: Product 1, $2.98; product 2, $4.50; product 3, $9.98; product
4, $4.49 and product 5, $6.87. Write an application that reads a series of
pairs of numbers as follows:
a) product number
b) quantity sold
Your program should use a switch statement to determine the retail price
for each product. It should calculate and display the total retail value of all
products sold. Use a sentinel-controlled loop to determine when the
program should stop looping and display the final results.