Constructing a class from a different class

[x-ice]

I have two class: Library and Book.

I want to construct a Book class by calling its class constructor from the Library class. How can i do this? My code doesn't work (Error: Cannot find symbol - Constructor Book() )

public void createBook()
{
   Book newBook;
	    
   newBook = new Book(); //Error line  
}

Here is the book constructor:

public Book(String BookAuthor, String BookTitle, String BookCost, String NumberOfPages, String BookGenre, int bookEnjoyability)
{
   //Initialise variables
   this.BookAuthor = BookAuthor;
   this.BookTitle = BookTitle;
   this.BookCost = BookCost;
   this.NumberOfPages = NumberOfPages;
   this.BookGenre = BookGenre;
		
   this.bookEnjoyability = bookEnjoyability;
}