Implement your own Product class. Your Product class must have the following data members $($i$.$e$.,$ instance variables$).$ Your Product class must include a getter $($accessor$)$ method and a setter $($mutator$)$ method for each data member.

product$\_$name $($String$)$ # The name of the product

units$\_$available $($int$)$ # The number of units available

unit$\_$price $($double$)$ # The cost per unit

Implement the following member methods of class Product.

boolean purchase$($int units$)$:

$//$ Return false if units $>$ units$\_$available. If not reduce units$\_$available by units and then return true.

$//$Optional: Show the user the total price, take payment from them using a Scanner object, and make change if needed.

$//$ units: The number of units of this product that the user wants to purchase

void refill$($int units$)$:

$//$ increments units$\_$available by units

$//$ units: The number of units of this product that we are adding

Implement your own VendingMachine class containing a main$()$ method that

instantiates and array list of about four or five Product objects,

provides the user with a menu, and then lets the user select a product, and then choose to purchase units of the product, refill it$,$ go back to the menu, or exit the menu,

uses a do$..$while loop and a case$-$switch statement for the menu.

Rubric

Product class:

Has the $3$ required attributes

Correctly implements getters and setters for each attribute.

purchase$()$ is correctly implemented refill$()$ is correctly implemented

VendingMachine class:

main$()$ is correctly implemented.