Concept explainers
Inventor Class
Design an Inventory class that can hold information and calculate data for items in a retail store’s inventory. The class should have the following private member variables:
Variable Name | Description |
itemNumber | An int that holds the item’s item number. |
quantity | An int for holding the quantity of the items on hand. |
cost | A doubl e for holding the wholesale per-unit cost of the item |
totalCost | A double for holding the total inventory cost of the item (calculated as quantity times cost). |
The class should have the following public member functions:
Member Function | Description |
Default Constructor | Sets all the member variables to 0. |
Constructor #2 | Accepts an item’s number, cost, and quantity as arguments. The function should copy these values to the appropriate member variables and then call the setTotalCost function. |
setltemNumber | Accepts an integer argument that is copied to the itemNumber member variable. |
setQuantity | Accepts an integer argument that is copied to the quantity member variable. |
setCost | Accepts a double argument that is copied to the cost member variable. |
setTotalCost | Calculates the total inventory cost for the item (quantity times cost) and stores the result in total Cost. |
getltemNumber | Returns the value in itemNumber. |
getQuanti ty | Returns the value in quantity. |
getCost | Returns the value in cost. |
getTotalCost | Returns the value in total Cost. |
Demonstrate the class in a driver program.
Input Validation: Do not accept negative values for item number, quantity, or cost.
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