This assignment consists of two parts: username/password authorization and finding cost of purchase of multiple products using loops with arrays.
Start your assignment with a welcome message using an alert box :
Welcome to Bill’s Sporting Goods.

Create two arrays of length five holding the following usernames and corresponding passwords
USERNAME ARRAY: Brad, Tom, Bruce, Justin, Tommy

PASSWORD ARRAY: Jennifer, Nicole, Demi, Cameron, Pamela

Using two prompt statements ask the user to enter a username and password. If the username-password pair matches one of the five stored pairs, allow access to the rest of the code i.e. proceed to take their order details. If the username-password pair does not match any of the options, using an alert display
“Bad Username or Password entered”

If a bad username or password is entered, loop back to take new inputs. This is repeated at most three times. If on the third time too, a bad username or password is entered, display the message
“Access Denied. Try again later”

(This is a security measure in many online authorization systems. The system allows a few wrong tries, else it locks down. This helps in avoiding hacking by randomly or exhaustively guessing usernames and passwords)

If a right username and password pair is inputted, display the following message using the username inputted.
“Welcome Bruce. What products do you want to buy today?”

Now, we proceed to the second part of this assignment. You will need to declare three arrays for [Product Name], [Price] and [Discount]
This part involves using a loop. Within the loop you take the input for the product name and using an if-else structure you will find the corresponding price and discount.
Within the loop, take the input from the user for [Product Name].
Use a if-else statement to compare [Product Name] with those in the table. Based on this determine the price and discount.
Save these values in the [Product Name], [Price] and [Discount] arrays.
NOTE: Handle the case where the product name entered by the customer does not match any of the five products sold by the store. In this case, no values should be added to the three arrays and instead an error message should be given like:
“Sorry, we did not recognize your product name. Try again.”

At this point, using a confirm method ask the user if the user wants to order one more product. Your confirm message should look like
Do you want to continue? Click on Ok to input details for one more product.

If the user clicks on Ok, loop back to take the inputs for one more product. If the user clicks on Cancel, stop the loop and proceed to the output part of the program.
Lastly output the detailed bill and as summary output the total cost of the purchase. You will need to calculate the price after the discount based on the discount and the price using the formula
(price after discount) = (price before discount) * (1 – discount)

Finally, your output will have the following format:
Final Bill
Product 1:

Product Name: Skis

Price: $1000

Price after discount: $900



Product 2:

Product Name: Sleds

Price: $2000

Price after discount: $1600



Product 3:

Product Name: Ice skates

Price: $ 200

Price after discount: $180


Total cost of purchase after discounts: $ 2680