using System;

public class Program

{

    string _firstName;

    string _lastName;

    Program()

    {

        this._firstName = "Enter The First Name";

        this._lastName = "Enter The Last Name";

    }

    public void FullName()

    {

        Console.WriteLine("Result: " + this._firstName + " " + this._lastName);

    }

    public static void Main()

    {

        Program P = new Program();

        P.FullName();

    }

}

​