static void Main(string[] args) { Product product1 = new Product(); product1.Name = "Watermelon"; product1.Price = 20; Product product2 = new Product(); product2.Name = "Pepper"; product2.Price = 3; Product[] products = new Product[] { product1, product2 }; foreach (var Product in products) { Console.WriteLine(Product.Name); Console.WriteLine(Product.Price); } Console.WriteLine("----------------------"); //example of the instance class CartManager cartManager = new CartManager(); cartManager.Addition(product2); cartManager.Addition(product1); cartManager.Addition2("Apple", 5); }