C# code public string

using System;  //It's a really simple code

namespace Project{

    public static class Password {

        public static void Main() {

            Console.WriteLine("Please enter your new password");

            string password = Console.ReadLine(); //I want to make this one public and then use it in the other class..
            Console.WriteLine("Are you sure you want to change your password to: " + password + "? (Yes/No)");
            string input = Console.ReadLine();

            if(input.ToLower() == "yes")
            {
                Console.WriteLine("Your password has been changed to " + password + "!");
                Console.WriteLine("Press any key to continue..");
                Console.ReadKey();
                Console.Clear();
                Username.Name ();

            }
            else if(input.ToLower() == "no")
            {
            Console.WriteLine(password + " will not be saved as your password");
            Console.WriteLine("Press any key to restart");
            Console.ReadKey();
            Console.Clear();
            Main();
            //System.Environment.Exit(0);

            }

            else
            {
            Console.WriteLine("ERROR! Press any key to restart");
            Console.ReadKey();
            Console.Clear();
            Main ();
            }
        }




    }
    public static class Username
    {
        public static void Name ()
        {                               //And that is here.
        Console.WriteLine("Please enter a username you would like");
        Console.ReadLine();
        }



    }
}