static void Main(string[] args)
{
//Shelf.AddBook();
//Shelf.AddBook();
//Console.WriteLine(Shelf.numberOfBooks);
//1st Method
Book LeanIn1 = new Book(
"Lean In1",
"Sheryl Sandberg1",
300
);
//2nd Method
Book LeanIn2 = new Book(
"Lean In2",
"Sheryl Sandberg2",
300,
new List <string>()
{
"Alex", "Jill", "Peter"
}
);
LeanIn1.AddCharacter("Regina");
//Console.WriteLine(LeanIn1.pages);
Shelf.AddBook(LeanIn1);
Shelf.ListBooks();
}