Book b = new Book("Java For Begginers", "2017", "Jakub Niedzielski");
        Book b2 = new Book("Java For Begginers", "2017", "Jakub Niedzielski");
        Book b3 = new Book("Kurwa", "100", "CHUJ");
        Book b4 = new Book("Java For Begginers", "2017", "Jakub Niedzielski");
        Book b5 = new Book("Kurwa", "100", "CHUJ");
        Book b6 = new Book("Kurwa", "100", "CHUJ");
        Book b7 = new Book("Inna", "2020", "inny");


        library.addBook(b);
        library.addBook(b2);
        library.addBook(b3);
        library.addBook(b4);
        library.addBook(b5);
        library.addBook(b6);
        library.addBook(b7);

        library.getAllBooks();