using System;

public class Program

{

    public static void Main()

    {

bool showMenu = true;

        while (showMenu)

        {

            showMenu = MainMenu();

        }  }

    private static bool MainMenu()

    {

        Console.Clear();

        Console.WriteLine(" Choose an option:");

        Console.WriteLine("1) Reverse String");

        Console.WriteLine("2) Remove Whitespace");

        Console.WriteLine("3) Exit");

        Console.WriteLine("\r\nSelect an option: ");

        switch (Console.ReadLine())

        {

            case "1":

                ReverseString();

                return true;

            case "2":

                RemoveWhitespace;

                return true;

            case "3":

                return false;

            default;

                return true;} }

    private static strin CaptureInput()

    {

        Console.WriteLine("Enter the string you want to modify: ");

        return Console.ReadLine();

    }

    private static void ReverseString()

    {

        Console.Clear();

        Cinsole.WriteLine("Reverse String")

        char[] charArray = CaptureInput().TocharArray();

        rray.Reverse(charArray);

        Display.Result(Strin.Concat.charArray());

    }

    private static void RemoveWhitespace()

    {

        Console.Clesr();

        Console.Writeline("Reverse String");

        DisplayResult(CaptureInput().Replace(" ", ""));

    }

    private statric voide DisplayResult(string message)

    {

        Console.WriteLine($"\r\nYour modified string is: {message}");

        Console.WriteLine("\r\nPress enter to return to Main Menu");

        Console.ReadLine();

    }  }

​