Introduction
I have used Visual Studio 2012 for debugging purpose. But you can use any version of visul studio as per your availability..
using System; class Program { public void sumAverageElements(int[] arr, int size) { int sum = 0; int average = 0; for (int i = 0; i < size; i++) { sum += arr[i]; } average = sum / size; Console.WriteLine("Sum Of Array is : " + sum); Console.WriteLine("Average Of Array is : " + average); Console.ReadLine(); } public static void Main(string[] args) { int size; Console.WriteLine("Enter the Size :"); size = Convert.ToInt32(Console.ReadLine()); int[] a = new int[size]; Console.WriteLine("Enter the Elements of the Array : "); for (int i = 0; i < size; i++) { a[i] = Convert.ToInt32(Console.ReadLine()); } int len = a.Length; Program p = new Program(); p.sumAverageElements(a, len); } }