In this assignment, you’ll make an inventory system for a store’s items, including produce and books. The starter program is an inventory system for only produce.

1. Include the price of an item by adding to the Item class the protected data member int priceInDollars that stores the price in dollars of an individual item.

Write a public function SetPrice with a single int parameter prcInDllrs and returns nothing. SetPrice assigns the value of prcInDllrs to priceInDollars.

Modify the AddItemToInventory to prompt the user to “Enter the price per item: $”, then set the Produce’s price to the user­entered value.

Modify Produce’s Print function output to include the item’s individual price. Here is an example output for 20 grape bundles at $3 each that expire on May 22.

Grape bundle x20 for $3 (Expires: May 22)

2. Add a new class Book that derives from Item. The Book class has a private data member that is a string named author. The Book class has a public function member SetAuthor with the parameter string authr that sets the private data member author’s value. SetAuthor returns nothing.

The class Book overloads the Print member function with a similar output as the Produce’s Print function, except “Expires” is replaced with “Author” and the variable “expiration” is replaced with “author”. Here is an example output for 22 copies of To Kill a Mockingbird by Harper Lee that sells for $5 each:

To Kill a Mockingbird x22 for $5 (Author: Harper Lee)

3. Modify the AddItemToInventory function to allow the user to choose between adding a book (b) and produce (p). If the user does not enter ‘b’ or ‘p’, then output “Invalid choice” then return the AddItemToInventory function.

4. Create a class named Inventory. The Inventory class should have one private data member: vector<item*> inventory. The Inventory class has four public function members that have no parameters and return nothing: PrintInventory, AddItemToInventory, UpdateItemQtyInInventory, and RemoveItemFromInventory.

Development suggestion: First convert only the PrintInventory function to be a member function of Inventory with the other functions disabled (commented out). Then, convert the other functions one by one.

5. Add to the Inventory class a private data member int totalInvPriceInDollars that stores the total inventory price in dollars.

Write a private member function SumInv in Inventory class that has no parameters and returns nothing. The SumInv function should set the total inventory value as a price in dollars. Since the Inventory class cannot access an Item’s quantity and priceInDollars, you’ll need to write a public member function GetTotalValueAsPrice to the Item class that returns the multiplication of the Item’s quantity and priceInDollars. The

SumInv function should be called at the end (but before the return statement) of each Inventory member function that modifies the inventory: AddItemToInventory, UpdateItemQtyInInventory, and RemoveItemFromInventory.

Modify the PrintInventory function to also output the total inventory value in dollars. Here is an example:

0 ­ Grapes x2 for $3 (Expires: May)

1 ­ To Kill a Mockingbird x4 for $5 (Author: Harper Lee)

Total inventory value: $26

Here is an example program execution (user input is highlighted here for clarity):

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: a

Enter choice of adding (b)ook or (p)roduce: p

Enternameofnewproduce: Grape bundle

Enter quantity: 20

Enter expiration date: May 12

Enter the price per item: $2

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: p

0 – Grape bundle x 20 for$2 (Expires: May 12)

Total inventory value: $40

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: a

Enter choice of adding (b)ook or (p)roduce: b

Enter name of new book: Illiad

Enter quantity: 10

Enter author: Homer

Enter the price per item: $5

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: p

0 – Grape bundle x 20 for $2 (Expires: May12)

1 – Illiad x 10 for $5 (Author: Homer)

Total inventory value: $90

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: a

Enter choice of adding (b)ook or (p)roduce: b

Enter name of new book: To Kill a Mocking bird

Enter quantity: 2

Enter author: Harper Lee

Enter the price per item: $10

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: u

0 – Grape bundle x 20 for $2 (Expires: May12)

1 – Illiad x 10 for $5 (Author: Homer)

2 – To Kill a Mocking bird x 2 for $10 (Author: Harper Lee)

Total inventory value: $110

Update which item#: 2

Enter new quantity: 25

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: p

0 – Grape bundle x 20 for $2 (Expires: May12)

1 – Illiad x 10 for $5 (Author: Homer)

2 – To Kill a Mocking bird x 25 for $10 (Author: Harper Lee)

Total inventory value: $340

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: r

0 – Grape bundle x 20 for $2 (Expires: May12)

1 – Illiad x 10 for $5 (Author: Homer)

2 – To Kill a Mocking bird x 25 for $10 (Author: Harper Lee)

Total inventory value: $340

Remove which item #: 1

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: p

0 – Grape bundle x 20 for $2 (Expires: May12)

1 – To Kill a Mocking bird x 25 for $10 (Author: Harper Lee)

Total inventory value: $290

Enter (p)rint, (a)dd, (u)pdate, (r)emove, or (q)uit: q