static void Main(string[] args)
{
var number = new Nullable <int>();
Console.WriteLine("Has Value ?" + number.HasValue);
Console.WriteLine("Value: " + number.GetValueOrDefault());
//Book book = new Book();
//var numbers = new List();
//numbers.Add(10);
//var books = new BookList();
//books.Add(book);
var numbers = new GenericList <int>();
numbers.Add(10);
var books = new GenericList <Book>();
books.Add(new Book());
var dictionary = new GenericDictionary <string, Book>();
dictionary.Add("1234", new Book());
}
static void Main(string[] args)
{
Book myBook = new Book(123456789, "The Wind in the Willows", 3.99F);
GenericList <Book> myBookList = new GenericList <Book>();
myBookList.Add(myBook);
//location of all generic collection types
//System.Collections.Generic.
GenericDictionary <string, Book> myGenDictExample = new GenericDictionary <string, Book>();
myGenDictExample.Add("1234", myBook);
var mynumber = new Nullable <int>(5);
Console.WriteLine("My Number Has Valeu? : " + mynumber.HasValue);
Console.WriteLine("MyNumber has value of ? : " + mynumber.GetValueOrDefault());
Console.ReadLine();
}