static void AddBooks(BooksCollection booksCollection)
{
booksCollection.AddBook("The C Programming Language", "Brian W. Kernighan and Dennis M. Ritchie", 19.95m, true);
booksCollection.AddBook("The Unicode Standard 2.0", "The Unicode Consortium", 39.95m, true);
booksCollection.AddBook("The MS-DOS Encyclopedia", "Ray Duncan", 129.95m, false);
booksCollection.AddBook("Dogbert's Clues for the Clueless", "Scott Adams", 12.00m, true);
}
static void Main(string[] args)
{
BooksCollection booksCollection = new BooksCollection();
AddBooks(booksCollection);
Console.WriteLine("Paperback Book Titles:");
booksCollection.ProcessPaperbackBooks(PrintBookTitle);
PriceAggregator aggregator = new PriceAggregator();
booksCollection.ProcessPaperbackBooks(aggregator.AddBookToTotal);
Console.WriteLine("Average Paperback Book Price: ${0:#.##}", aggregator.AveragePrice());
Console.ReadKey();
}
