C++ Creating Classes (Invoice Class): Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four data membersa part number (type string), a part description (type string), a quantity of the item being purchased (type int) and a price per item (type int). Your class should have a constructor that initializes the four data members. Provide a set and a get function for each data member. In addition, provide a member function named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as an int value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0. Write a test program that demonstrates class Invoices capabilities. On the side in comments please explain how you implemented exception in the code or a small summary of how you chose to implement exceptions within the code.

Example output:

Part number 12345 Part description: Hammer Quantity: 100 Price per item: S5 invoice amount: $50 quantity cannot be negative, quantity set to . Invoice data members modified Part number: 123456 Part descriptionSaw Quantity: Price per item: $ invoice amount: $