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 { static void Main() { int[] arrayA = new int[10]; int lengthA = arrayA.Length; Console.WriteLine("Length of ArrayA : {0}", +lengthA); long longLength = arrayA.LongLength; Console.WriteLine("Length of the Long Length Array : {0}", longLength); int[,] twoD = new int[20, 50]; Console.WriteLine("The Size of 2D Array is : {0}", twoD.Length); Console.ReadLine(); } }