reverse display of string using stacked array in data structure in c#

C# Code

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication42
{
class Program
{
static void Main(string[] args)
{
string str;
Console.WriteLine("Enter a word");
/*We hv taken string input from the user*/
str = Console.ReadLine();
/*creating a char array */
char[] arr = new char[str.Length];
/*it will convert string in char and then allocate momery to it in array*/
arr = str.ToCharArray();
/*Stack is a system generic class delacred so that we can use
* push n pop functions of stack*/
/*here mystack is obj through which we r calling push n pop*/
Stack<char> mystack = new Stack<char>();
/*above stack is system defined class,char is the data type
and mystack is the object*/
for (int i = 0; i < str.Length; i++)
{
/*pushing(inserting) each elemnt stored in arr(array) in stack */
mystack.Push(arr[i]);
}
for (int i = 0; i < str.Length; i++)
{
/*Retreving elemnts from stack using Pop(deletion)*/
Console.Write(mystack.Pop());
}
Console.ReadLine();
}
}
}

{/codecitation}

Thank you

Bhandari