static void Main(string[] args)
{
Book B = new Book();
B.A = new Author();
B.C = new Content();
B.T = new Title();
B.A.author = "Bill";
B.C.text = "Today is a good day";
B.T.title = "My day";
B.Show();
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("Назва книги: ");
Titles title = new Titles();
title.Content = Console.ReadLine();
Console.WriteLine("Автор книги: ");
Authors author = new Authors();
author.Content = Console.ReadLine();
Console.WriteLine("Зміст книги: ");
Contents content = new Contents();
content.Content = Console.ReadLine();
Book book = new Book(title, author, content);
book.Show();
Console.ReadKey();
}