/* * C# Program to Count Lines in a String */ using System; using System.Text.RegularExpressions; class Program { static void Main() { long a = countstring("This is \n Sanfoundry\n Website"); Console.WriteLine("Number of Lines in the String : {0}",a); Console.ReadLine(); } static long countstring(string s) { long count = 1; int start = 0; while ((start = s.IndexOf('\n', start)) != -1) { count++; start++; } return count; } } /* Number of Lines in the String : 3