public void ProcessPaperbackBooks(ProcessBookdel processBook) { foreach (Book b in list) { if (b.PaperBack) { processBook(b); } } }
static void Main(string[] args) { BookDB books = new BookDB(); books.AddBook("Book1", "Vikas", 500, true); books.AddBook("Book2", "Vik", 450, true); books.AddBook("Book3", "Nik", 350, true); ProcessBookdel d = new ProcessBookdel(SellBook); d += RentBook; books.ProcessPaperbackBooks(d); }