How To Reverse A String Using Stack

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

Introduction

 

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

 

Software Requirements

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

Program

using System;
using System.Collections;

namespace StringReverseUsingStack {
 public static class StringReverse {
  // Reverse ExtentionMethod
  public static string Reverse(this string str) {
   // calling StringReverseUsingStack
   return Program.StringReverseUsingStack(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 = "CSharpcorner";
   Console.WriteLine("=======================================================");
   Console.WriteLine($ "Original Text : {sampleText}");
   Console.WriteLine("=======================================================");
   var reverseText = StringReverseUsingStack(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 StringReverseUsingStack(string str) {
   var reversedStr = "";
   Stack myStack = new Stack();
   foreach(var t in str)
   myStack.Push(t);
   while (myStack.Count > 0)
    reversedStr += myStack.Pop();
   return reversedStr;
  }
 }
}

Now run the code.

 

If User does not enter anything, then the default value will be CShaprcorner, i.e. Without Input

 

 

 

If User enters "CSharp", i.e. With Input

 

 

 

In my next blog, we will discuss String reverse using StringBuilder and thank you so much for reading my blog.