w3resource

C#: Check whether a string is Palindrome or not

C# Sharp Recursion: Exercise-8 with Solution

Write a program in C# Sharp to check whether a given string is a palindrome or not using recursion.

Visual Presentation:

C# Sharp Exercises: Check whether a string is Palindrome or not

Sample Solution:

C# Sharp Code:

using System;

public class RecExercise8
{
    // Method to check if a string is a palindrome using recursion
    public static bool IsPalindrome(string text)
    {
        // Base case: If the length of the text is 0 or 1, it's a palindrome
        if (text.Length <= 1)
            return true;
        else
        {
            // Check if the first and last characters are equal
            if (text[0] != text[text.Length - 1])
                return false; // If not equal, it's not a palindrome
            else
                // Recursive call: Check the substring without the first and last characters
                return IsPalindrome(text.Substring(1, text.Length - 2));
        }
    }

    public static void Main()
    {
        Console.Write("\n\n Recursion : Check whether a string is a Palindrome or not :\n");
        Console.Write("---------------------------------------------------------------\n");

        string str1;
        bool tf;

        Console.Write(" Input a string : ");
        str1 = Console.ReadLine();

        // Call IsPalindrome function and get the result
        tf = IsPalindrome(str1);

        // Output whether the input string is a palindrome or not
        if (tf == true)
        {
            Console.WriteLine(" The string is a Palindrome.\n");
        }
        else
        {
            Console.WriteLine(" The string is not a Palindrome.\n");
        }
    }
}

Sample Output:

Recursion : Check whether a string ia Palindrome or not :                                                    
---------------------------------------------------------------                                               
 Input a string : eye                                                                                         
 The string is Palindrome.

Flowchart :

Flowchart: C# Sharp Exercises - Check whether a string is Palindrome or not

C# Sharp Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a program in C# Sharp to check whether a number is prime or not using recursion.
Next: Write a program in C# Sharp to find the factorial of a given number using recursion.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://www.w3resource.com/csharp-exercises/recursion/csharp-recursion-exercise-8.php