static void Main(string[] args)
{
Book book1 = new Book("Alice in wonderland", "Luice Carrol", 300, 20.99M, true);
Book book2 = new Book("Spectr", "Lukyanenko Sergey", 300, 9.99M, true);
Book book3 = new Book("Dark tower", "King", 300, 10.99M, true);
Book book4 = new Book("Lone in the dark", "Sergey", 300, 30.99M, true);
BookDataBase bookDb = new BookDataBase();
bookDb.AddBook(book1);
bookDb.AddBook(book2);
bookDb.AddBook(book3);
bookDb.AddBook(book4);
bookDb.ProcessBooks(PrintBookTitle);
BooksValueCounter calc = new BooksValueCounter();
bookDb.ProcessBooks(calc.CalculateTotal);
Console.WriteLine(calc.ReturnAvarege());
doSmthWithBooks writeAuthor = new doSmthWithBooks(PrintBookAuthor);
doSmthWithBooks writeTitle = new doSmthWithBooks(PrintBookTitle);
doSmthWithBooks writeCalc = new doSmthWithBooks(calc.CalculateTotal);
doSmthWithBooks combo = writeCalc + writeAuthor + writeTitle;
bookDb.ProcessBooks(combo);
}
public void ProcessBooks(doSmthWithBooks process)
{
foreach (var book in _bookList)
{
process(book);
}
}
