Write a program in C# to reverse a string

How can I do this task?

Here is C# program for reverse a string without using reverse method.

using System;

class Program{

public static void Main() {

Console.Write("Enter a string: ");

string myString= Console.ReadLine();

string reversedString = "";

for (int i = myString.Length - 1 ; i >= 0 ; i--)

{

reversedString += myString[i];

}

Console.WriteLine("Reversed string = " + reversedString);

}

}

Here’s a simple C# program that reverses a string:

using System;

class Program
{
    static void Main()
    {
        // Input string
        Console.Write("Enter a string: ");
        string input = Console.ReadLine();

        // Reverse the string using built-in methods
        char[] charArray = input.ToCharArray();
        Array.Reverse(charArray);
        string reversed = new string(charArray);

        // Output the reversed string
        Console.WriteLine("Reversed string: " + reversed);
    }
}

Explanation:

• Console.ReadLine() ? Reads user input.

• ToCharArray() ? Converts the string into a character array.

• Array.Reverse() ? Reverses the array in place.

• new string(charArray) ? Creates a new string from the reversed array.

Example Run:

Enter a string: hello
Reversed string: olleh

Manual Reversal Logic:

using System;

class Program
{
    static void Main()
    {
        Console.Write("Enter a string to reverse: ");
        string input = Console.ReadLine();

        string reversed = ReverseString(input);

        Console.WriteLine("Reversed string: " + reversed);
    }

    static string ReverseString(string str)
    {
        string result = "";

        for (int i = str.Length - 1; i >= 0; i--)
        {
            result += str[i]; // Append characters from end to start
        }

        return result;
    }
}

C# Corner forums are here to help you learn and grow as a developer. Instead of asking for a complete solution like ‘Write a program to reverse a string,’ we encourage you to try writing some code yourself first. Share what you’ve attempted, and we’ll be happy to guide you from there!

We can  use LINQ's Reverse() to reverse the characters. Here we can code a method in just a few lines
class Program
{
    static void Main()
    {
        Console.Write("Enter a string: ");
        string input = Console.ReadLine();
        Console.WriteLine("Reversed string: " + new string(input.Reverse().ToArray()));
    }
}