Palindrome program in C#

A palindrome number is a number that is same after reverse. For example 121, 34543, 343, 131, 48984 are the palindrome numbers.

Palindrome number algorithm

• Get the number from user
• Hold the number in temporary variable
• Reverse the number
• Compare the temporary number with reversed number
• If both numbers are same, print palindrome number
• Else print not palindrome number

Let's see the palindrome program in C#. In this program, we will get an input from the user and check whether number is palindrome or not.

1. using System;  
2.   public class PalindromeExample  
3.    {  
4.      public static void Main(string[] args)  
5.       {  
6.           int n,r,sum=0,temp;    
7.           Console.Write("Enter the Number: ");   
8.           n = int.Parse(Console.ReadLine());  
9.           temp=n;      
10.           while(n>0)      
11.           {      
12.            r=n%10;      
13.            sum=(sum*10)+r;      
14.            n=n/10;      
15.           }      
16.           if(temp==sum)      
17.            Console.Write("Number is Palindrome.");      
18.           else      
19.            Console.Write("Number is not Palindrome");     
20.     }  
21.   }  

Output:

Enter the Number=121   
Number is Palindrome.

Enter the number=113  
Number is not Palindrome.