How to Reverse String using For Loop

In this blog, I am going to explain the program for string reverse using For Loop, without the use of any predefined function.

Introduction

 

In this blog, I am going to explain the program for string reverse using only For Loop.

 

Software Requirements

• C# 3.0 or higher,
• Visual Studio or Notepad

Program

using System;

namespace StringReverseUingForLoop {
 public static class StringReverse {
 // Reverse ExtentionMethod
 public static string Reverse(this string str) {
 // calling StringReverseUingForLoop
 return Program.StringReverseUingForLoop(str);
 }
 }
 class Program {
 static void Main() {
 Console.WriteLine("(Input is Optional and Default value will be CSharpcorner)");
 Console.WriteLine("Enter your data to Reverse otherwise just Hit Enter");
 string sampleText = Console.ReadLine();
 if (string.IsNullOrEmpty(sampleText))
 sampleText = "https://www.c-sharpcorner.com";
 Console.WriteLine("=======================================================");
 Console.WriteLine($"Original Text : {sampleText}");
 Console.WriteLine("=======================================================");
 var reverseText = StringReverseUingForLoop(sampleText);
 Console.WriteLine($"Reversed Text (Using Normal Method) : {reverseText}");
 Console.WriteLine("======================================================");
 reverseText = sampleText.Reverse();
 Console.WriteLine($"Reversed Text (Using Extension Method) : {reverseText}");
 }
 public static string StringReverseUingForLoop(string str) {
 var reversedStr = "";
 for(int i = str.Length - 1; i >= 0; i--)
    reversedStr += str[i];
 return reversedStr;
 }
 }
}

Now run the code.

 

If User does not enter anything, then the default value will be "https://www.c-sharpcorner.com." The following example is without input.

 

 

 

If User enters "Microsoft Technologies," it should look like the following:

 

 

 

Thank you so much for reading my blog.