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Pointers/Inheritance – Inventory system

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Pointers/Inheritance – Inventory system 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 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 Enterchoiceofadding(b)ookor(p)roduce:p Enternameofnewproduce:Grapebundle Enterquantity:20 Enterexpirationdate:May12 Enterthepriceperitem:$2 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:p 0-Grapebundlex20for$2(Expires:May12) Totalinventoryvalue:$40 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:a Enterchoiceofadding(b)ookor(p)roduce:b Enternameofnewbook:Illiad Enterquantity:10 Enterauthor:Homer Enterthepriceperitem:$5 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:p 0-Grapebundlex20for$2(Expires:May12) 1-Illiadx10for$5(Author:Homer) Totalinventoryvalue:$90 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:a Enterchoiceofadding(b)ookor(p)roduce:b Enternameofnewbook:ToKillaMockingbird Enterquantity:2 Enterauthor:HarperLee Enterthepriceperitem:$10 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:u 0-Grapebundlex20for$2(Expires:May12) 1-Illiadx10for$5(Author:Homer) 2-ToKillaMockingbirdx2for$10(Author:HarperLee) Totalinventoryvalue:$110 Updatewhichitem#:2 Enternewquantity:25 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:p 0-Grapebundlex20for$2(Expires:May12) 1-Illiadx10for$5(Author:Homer) 2-ToKillaMockingbirdx25for$10(Author:HarperLee) Totalinventoryvalue:$340 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:r 0-Grapebundlex20for$2(Expires:May12) 1-Illiadx10for$5(Author:Homer) 2-ToKillaMockingbirdx25for$10(Author:HarperLee) Totalinventoryvalue:$340 Removewhichitem#:1 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:p 0-Grapebundlex20for$2(Expires:May12) 1-ToKillaMockingbirdx25for$10(Author:HarperLee) Totalinventoryvalue:$290 Enter(p)rint,(a)dd,(u)pdate,(r)emove,or(q)uit:

 
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