public void FillData()
{
#region Adding authors
authors = new Author[6];
Author author1 = new Author("Author1", "*****@*****.**", 'm', new Date(2, 10, 1985));
Author author2 = new Author("Author2", "*****@*****.**", 'f', new Date(12, 4, 1974));
Author author3 = new Author("Author3", "*****@*****.**", 'm', new Date(25, 5, 1978));
Author author4 = new Author("Author4", "*****@*****.**", 'f', new Date(10, 11, 1965));
Author author5 = new Author("Author5", "*****@*****.**", 'm', new Date(23, 5, 1997));
Author author6 = new Author("Author6", "*****@*****.**", 'f', new Date(2, 10, 1998));
authors[0] = author1;
authors[1] = author2;
authors[2] = author3;
authors[3] = author4;
authors[4] = author5;
authors[5] = author6;
#endregion
#region Adding books
books = new List <Book>();
Book book1 = new Book("book1", new Author[] { author1, author2 }, 0, 5);
book1.SetPublicationDate(new Date(10, 1, 2004));
books.Add(book1);
Book book2 = new Book("book2", new Author[] { author3, author2 }, 0, 5);
book2.SetPublicationDate(new Date(22, 4, 1994));
books.Add(book2);
Book book3 = new Book("book3", new Author[] { author4, author2 }, 3.4, 5);
book3.SetPublicationDate(new Date(14, 2, 1991));
books.Add(book3);
Book book4 = new Book("book4", new Author[] { author1, author5 }, 10.1, 5);
book4.SetPublicationDate(new Date(23, 8, 1989));
books.Add(book4);
Book book5 = new Book("book5", new Author[] { author1, author6 }, 8.3, 5);
book5.SetPublicationDate(new Date(10, 11, 2014));
books.Add(book5);
Book book6 = new Book("book6", new Author[] { author1, author3 }, 6.5, 5);
book6.SetPublicationDate(new Date(15, 1, 2008));
books.Add(book6);
Book book7 = new Book("book7", new Author[] { author3, author2 }, 3, 5);
book7.SetPublicationDate(new Date(18, 5, 1998));
books.Add(book7);
Book book8 = new Book("book8", new Author[] { author4, author2 }, 5, 5);
book8.SetPublicationDate(new Date(5, 3, 2004));
books.Add(book8);
Book book9 = new Book("book9", new Author[] { author5, author6 }, 25.7, 5);
book9.SetPublicationDate(new Date(1, 6, 2002));
books.Add(book9);
Book book10 = new Book("book10", new Author[] { author1, author2, author3 }, 15.7, 5);
book10.SetPublicationDate(new Date(4, 1, 1988));
books.Add(book10);
Book book11 = new Book("book11", new Author[] { author1, author2, author4 }, 13.7, 5);
book11.SetPublicationDate(new Date(10, 1, 1965));
books.Add(book11);
Book book12 = new Book("book12", new Author[] { author1, author2, author5 }, 12, 5);
book12.SetPublicationDate(new Date(1, 4, 2014));
books.Add(book12);
Book book13 = new Book("book13", new Author[] { author1, author2, author6 }, 11, 5);
book13.SetPublicationDate(new Date(10, 1, 1999));
books.Add(book13);
Book book14 = new Book("book14", new Author[] { author1, author4, author6 }, 9, 5);
book14.SetPublicationDate(new Date(8, 8, 2008));
books.Add(book14);
Book book15 = new Book("book15", new Author[] { author1, author5, author3 }, 8, 5);
book15.SetPublicationDate(new Date(10, 1, 2012));
books.Add(book15);
Book book16 = new Book("book16", new Author[] { author1 }, 30, 5);
book16.SetPublicationDate(new Date(25, 4, 2004));
books.Add(book16);
Book book17 = new Book("book17", new Author[] { author3 }, 20, 5);
book17.SetPublicationDate(new Date(26, 5, 1999));
books.Add(book17);
Book book18 = new Book("book18", new Author[] { author2 }, 16, 5);
book18.SetPublicationDate(new Date(10, 10, 2000));
books.Add(book18);
Book book19 = new Book("book19", new Author[] { author4 }, 8, 5);
book19.SetPublicationDate(new Date(9, 10, 2004));
books.Add(book19);
Book book20 = new Book("book20", new Author[] { author6 }, 7, 5);
book20.SetPublicationDate(new Date(11, 1, 1989));
books.Add(book20);
#endregion
#region link books and authors
author1.SetBooks(new Book[] { book1, book4, book5, book6, book10, book11, book12, book13, book14, book15, book16 });
author2.SetBooks(new Book[] { book1, book2, book3, book7, book8, book10, book11, book12, book13, book18 });
author3.SetBooks(new Book[] { book2, book6, book7, book10, book17 });
author4.SetBooks(new Book[] { book3, book8, book11, book14, book19 });
author5.SetBooks(new Book[] { book4, book9, book12, book15 });
author6.SetBooks(new Book[] { book5, book9, book13, book14, book20 });
#endregion
}