text: Palindrome Checking in C#
  Introduction
  A Palindromic number or string can be read in both directions. It's a form of word puzzle. A numeral Palindrome is a number which remains the same when its digits are reversed. The term palindromic is derived from Palindrome, which refers to a word whose spelling is unchanged when its letters are reversed.
  Sample Application to Check Palindromic Features
  To demonstrate Palindromic features, let's create a .NET console application. Add the following namespaces in the Program.cs file.
  using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks;
  static void CheckPalindrome() { int number, remind, sum = 0, temp; Console.WriteLine("\n >>>> Purpose of this Program <<<< "); Console.WriteLine("\n >>>> To Find a Number is a Palindrome or not <<<< "); Console.Write("\n Please Enter a number: "); number = Convert.ToInt32(Console.ReadLine()); temp = number; while (number > 0) { remind = number % 10; number = number / 10; sum = sum * 10 + remind; } Console.WriteLine("\n The Reversed Number of the Original Number is: {0} \n", sum); if (temp == sum) { Console.WriteLine("\n Your Number is a Palindrome \n\n"); } else { Console.WriteLine("\n Your Number is not a Palindrome \n\n"); } Console.ReadLine(); Console.Clear(); }
  Similar to Palindrome number checking, we also can check if a string is a Palindrome or not. For that, you first need to reverse the string.
  After that, use the equals() method or '==' to match the original string with the reversed version. If the result is true, that would mean the string is a Palindrome.
  To check a Palindrome string, I have written the following StringPalindrome function.
  static void StringPalindrome() { string s, revs = ""; Console.WriteLine("\n >>>> Purpose of this Program <<<< "); Console.WriteLine("\n >>>> To Find if a String is a Palindrome or not <<<< "); Console.WriteLine("\n Please Enter a string: "); s = Console.ReadLine(); s = s.Trim(); for (int i = s.Length - 1; i >= 0; i--) { revs += s[i].ToString(); } if (revs == s) { Console.WriteLine("String is a Palindrome \n You have Entered the Following String {0} \n and the reverse string is {1}", s, revs); } else { Console.WriteLine("String is not a Palindrome \n You have Entered the Following String {0} \n and the reverse string is {1}", s, revs); } Console.ReadKey(); }
  Finally, from the Main() method, both the CheckPalindrome and StringPalindrome functions are called.
  namespace ProjectPalindrome { class Program { static void Main(string[] args) { CheckPalindrome(); StringPalindrome(); } } }
  Conclusion
  In this article, I have coded couple of simple C# methods to test for Palindromes. Many Palindromes are composed of multiple words and have spaces and punctuation. These can all be tested.
  I hope you enjoyed reading the article. That's all for today; happy reading!