static void Main(string[] args)
        {
            CustomerService CustomerService_Object = new CustomerService();

            Console.WriteLine(CustomerService_Object.GetCustomerName(10));

            CustomerService_Constructor_Injection_Data CustomerService_Object_DI = new CustomerService_Constructor_Injection_Data(new CustomerDataAccess());

            Console.WriteLine(CustomerService_Object_DI.GetCustomerName(12));

            CustomerService_Constructor_Injection_Data CustomerService_Object_DI1 = new CustomerService_Constructor_Injection_Data(new CustomerDataAccess1());

            Console.WriteLine(CustomerService_Object_DI1.GetCustomerName(14));

            CustomerBusinessLogic CustomerBusinessLogic_Object = new CustomerBusinessLogic(new CustomerDataAccess());

            Console.WriteLine(CustomerBusinessLogic_Object.ProcessCustomerData(16) + " => Direkte oprettelse af CustomerBusinessLogic objekt");

            CustomerBusinessLogic CustomerBusinessLogic_Object1 = new CustomerBusinessLogic(new CustomerDataAccess1());

            Console.WriteLine(CustomerBusinessLogic_Object1.ProcessCustomerData(18) + " => Direkte oprettelse af CustomerBusinessLogic objekt");
            Console.ReadLine();
        }