public void Wyw9()
{
Book b1 = new Book("123p", "T1", "A1", 24.99);
Book b2 = new Book("113p", "T2", "A2", 24.99);
Book b3 = new Book("1s23p", "T3", "A3", 24.99);
Book b4 = new Book("1243p", "T4", "A4", 24.99);
BookLibrary Lib = new BookLibrary();
Lib.AddBook(b1);
Lib.AddBook(b2);
Lib.AddBook(b3);
Lib.AddBook(b4);
Lib.PrintAll();
List <Book> n1 = Lib.SearchAuthor("A2");
foreach (Book b in n1)
{
Console.WriteLine("Informacje o ksiazce:");
Console.WriteLine(b.GetISBN());
Console.WriteLine(b.GetTitle());
Console.WriteLine(b.GetAuthor());
Console.WriteLine();
}
}
public static BookLibrary GetInstance()
{
if (_instance == null)
{
_instance = new BookLibrary();
}
return(_instance);
}
static void Zad9()
{
Book bookInstance = new Book("Chocolate", "Joanne Harris", 40);
Book bookInstance1 = new Book("Kosmiczne zachwyty", "Neil DeGrasse Tyson", 30.90);
Book bookInstance2 = new Book("Jak mniej myśleć", "Christel Petitcollin", 50.20);
Book bookInstance3 = new Book("Planer AGH", "URSS AGH", 0);
BookLibrary bookLibrary = BookLibrary.GetInstance();
BookLibrary bookLibrary2 = BookLibrary.GetInstance(); //Jest to to samo co bookLibrary, referencja do tego samego obiektu, ponieważ BookLibrary to Singleton, a więc może istniec tylko jedna istancja tej klasy
bookLibrary.Add(bookInstance);
bookLibrary.Add(bookInstance1);
bookLibrary.Add(bookInstance2);
bookLibrary.Add(bookInstance2); //Próba dodania 2 raz tego samego, operacja nie powoduje faktycznego dodania drugi raz tego samego obiektu
bookLibrary.Add(bookInstance3);
bookLibrary2.Remove(bookInstance);
bookLibrary.Print();
Console.WriteLine("\nPodaj autora by sprawdzić czy istnieje taka książka");
string authorToFind = Console.ReadLine();
Book bookFound = bookLibrary.FindByAuthor(authorToFind);
if (bookFound != null)
{
Console.WriteLine(bookFound.ToString());
}
Console.WriteLine("\nPodaj tytuł by sprawdzić czy istnieje taka książka");
string titleToFind = Console.ReadLine();
bookFound = bookLibrary.FindByTitle(titleToFind);
if (bookFound != null)
{
Console.WriteLine(bookFound.ToString());
}
}
