public string title;     //New File

        public string author;

        public int pages;

​

        public Book(string aTitle, string aAuthor, int aPages)

        {

            title = aTitle;

            author = aAuthor;   

            pages = aPages; 

        }

        //Original File

Book book1 = new Book("Harry Potter", "JK Rowling", 400);

            Book book2 = new Book("Lord of The Rings", "Tolkein", 700);

            book2.title = "The Hobbit"; //can change the values 

            Console.WriteLine(book2.title);

            Console.ReadLine();