How to Reverse the Order Of Words In A String

In this blog, I am going to explain the program to reverse the order of words in a string using a static/extension method.

Introduction

 

In this blog, I am going to explain the program to reverse the order of words in a string.

 

Software Requirements

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

Example

Original Text: Singh Sanjit

 

Reversed order of words: Sanjit Singh

 

Program

using System;
namespace WordReverse {
 public static class Extension {
  // This method will be treated as an extension and Static based on the way of call
  public static string[] ReverseWord(this string[] strArray) {
   if (strArray is null) {
    throw new ArgumentNullException(nameof(strArray));
   }
   string temp;
   int j = strArray.Length - 1;
   for (int i = 0; i < j; i++) {
    temp = strArray[i];
    strArray[i] = strArray[j];
    strArray[j] = temp;
    j--;
   }
   return strArray;
  }
 }
 class Program {
  static void Main() {
   Console.WriteLine("(Input is Optional and Default value will be 'Community of Software and Data Developers'");
   Console.WriteLine("Enter your data to Reverse otherwise just Hit Enter");
   var sampleText = Console.ReadLine();
   if (string.IsNullOrEmpty(sampleText))
    sampleText = "Community of Software and Data Developers";
   Console.WriteLine("=======================================================");
   Console.WriteLine($ "Original Text : {sampleText}");
   Console.WriteLine("=======================================================");
   Console.Write($ "Reversed order of words (Static Method): ");
   DisplayArrayValues(Extension.ReverseWord(sampleText.Split(' ')));
   Console.WriteLine("======================================================");
   Console.Write($ "Reversed order of words (Extension Method): ");
   DisplayArrayValues(sampleText.Split(' ').ReverseWord());
   Console.ReadLine();
  }
  static void DisplayArrayValues(string[] strArray) {
   if (strArray is null) {
    throw new ArgumentNullException(nameof(strArray));
   }
   for (int i = 0; i < strArray.Length; i++)
    Console.Write(strArray[i] + " ");
   Console.WriteLine();
  }
 }
}

Now run the code.

 

If the 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 "power is Knowledge" it should look like the following:

 

 

 

Thank you so much for reading my blog.