public class Order { public int OrderID { get; set; } public string CustomerName { get; set; } public DateTime OrderDate { get; set; } public decimal OrderTotal { get; set; } } public class OrderManager { ListIn this example, we have a class called Order with properties for OrderID, CustomerName, OrderDate, and OrderTotal. The OrderManager class has a List of orders and an AddOrder method that adds a new order to the list. The package library for this code example would likely be System.Collections.Generic, which contains the Listorders = new List (); public void AddOrder(Order newOrder) { orders.Add(newOrder); } }