1. Function signature expects a return value but example provides none
        Parameter array "args" must be last declared in argument list

2. if (args.Length >= 2)
        {
            string firstParam = args[0];
            int secondParam = Convert.ToInt32(args[1]);
            Console.WriteLine("Incoming arguments specify that {0} will occur {1} times.",
                firstParam, secondParam);
        }

3. delegate string inputDelegate();
        static string reader()
        {
            return Console.ReadLine();
        }

        .... on to Main()

        inputDelegate getInput;
        Console.WriteLine("Enter your name:");
        getInput = new inputDelegate(reader);
        Console.WriteLine("Result: {0}", getInput());

4. struct order
        {
            public string itemName;
            public int unitCount;
            public double unitCost;

            public double howMuch()
            {
                return unitCount * unitCost;
            }

5. public string orderInfo()
            {
                string badNews = "Order Information: " + Convert.ToString(unitCount) +
                    " " + itemName + " items at $" + Convert.ToString(unitCost) +
                    " each, total cost $" + Convert.ToString(howMuch());
                return badNews;
            }
        }