C#_IntroArrayExample

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FirstConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = 5;
            do
            {
                n = InputInt("Please enter the size of the array (unsigned integer): ");
            } while (n < 1);

            Console.WriteLine("The size of the array is {0}", n);
            int[] myArray = new int[n];
            InputArray(myArray);
            PrintOddsGreaterThan7(myArray);
            Console.WriteLine("The average is {0}.", GetAverage(myArray));
        }

        static void InputArray(int[] myArray) {
            int value = 0;
            for (int i = 0; i < myArray.Length; i++) {
                value = InputInt("Please enter element #" + i + ": ");
                myArray[i] = value;
            }
        }

        static void PrintOddsGreaterThan7(int[] myArray)
        {
            for (int i = 0; i < myArray.Length; i++) {
                if (myArray[i] % 2 != 0 && myArray[i] > 7) Console.WriteLine(myArray[i]);
            }
        }

        static double GetAverage(int[] myArray)
        {
            int sum = 0;
            for (int i = 0; i < myArray.Length; i++)
            {
                sum += myArray[i];
            }
            return sum / myArray.Length;
        }

        // This method belongs to View (Presentation Layer)
        static int InputInt(string message)
        {
            int n = 0;
            bool flag = false;
            do
            {
                Console.Write(message);
                try
                {
                    n = Int32.Parse(Console.ReadLine());
                    flag = false;
                }
                catch (System.FormatException e)
                {
                    Console.WriteLine("Please, enter a valid integer number (e.g. 5). Exception {0}", e.Message);
                    flag = true;
                }
            } while (flag);
            return n;
        }
    }
}