Assume that the following code compiles without error in a client of the book class. what do you know about the book class? book book1 = new book("secret coders", "gene luen yang"); book book2 = new book("alan turing: the enigma", 2014); the book class has one constructor. the author name may or may not be needed to construct a book object. both the book title and publication year are required to construct a book object.