Write a java program that will calculate and display simple inventory management system for use by small businesses. The first function will be the initial setup of the system, allowing users to input their inventory levels, as well as adding to specific values when orders arrive, and subtracting when products are sold. The second will generate a report that displays current inventory levels alongside their respective averages. The third function will calculate the reorder point for a given product, IE the inventory level that indicates the product must bereordered in order to avoid a stockout. The final function will calculate economic order quantity, IE the order quantity that minimizes holding and ordering costs