static void Main(string[] args)
{
BookDataBase db = new BookDataBase();
List <Book> list = new List <Book>();
db.AddBook("alice", "Carrol", 10, true);
db.AddBook("lotr", "Tolkien", 15, true);
db.AddBook("game of thrones", "Martin", 20, true);
db.AddBook("kolobok", "unknown", 30, true);
// Pass delegate into class method
//db.ProcessBooks(PrintTitle);
PriceCounter totaller = new PriceCounter();
// db.ProcessBooks(totaller.AddBookToTotal);
//Console.WriteLine(totaller.AvaragePrice());
// Declaring delegate as instance
DoSomethingWithBook getPrice = totaller.GetPrice;
DoSomethingWithBook totalBooks = totaller.AddBookToTotal;
// Delegates can be joined
DoSomethingWithBook joined = getPrice + totalBooks;
db.ProcessBooks(joined);
totaller.PrintPrices();
Console.WriteLine("Average books price is {0}", totaller.AvaragePrice());
Console.ReadLine();
}
public void ProcessBooks(DoSomethingWithBook process)
{
foreach (Book b in listOfBooks)
{
process(b);
}
}
