Consider the data definition class and implementation class identified below. Write one line of code to output the new promotion discount of the first book.

public class Book { private String isbn; private double cost; private boolean isNew; private static double newPromotionDiscount; public Book() { this.isNew = true; } public Book(String isbn) { this(); this.isbn = isbn; } public Book(String isbn, double cost) { this(); this.isbn = isbn; this.cost = cost; } public String getIsbn() { return this.isbn; } public double getCost() { return this.cost; } public boolean isNew() { return this.isNew; } public static double getNewPromotionDiscount() { return newPromotionDiscount; } public void setIsbn(String isbn) { this.isbn = isbn; } public boolean setCost(double cost) { if (cost >= 0) { this.cost = cost; return true; } else { return false; } } public void setIsNew(boolean isNew) { this.isNew = isNew; } public static boolean setNewPromotionDiscount(double discount) { if (newPromotionDiscount >= 0.00) { newPromotionDiscount = discount; return true; } else { return false; } } public boolean discount(double percentage) { if (percentage > 0) { if (this.isNew()) { setCost(this.getCost() - this.getCost() * (percentage/100) - getNewPromotionDiscount()); } else { setCost(this.getCost() - this.getCost() * (percentage/100)); } return true; } else { return false; } } } import javax.swing.JOptionPane; public class BookImplementation { public static void main(String[] args) { Book b1 = new Book("983657897"); Book b2 = new Book(); Book b3 = new Book("705824950", 9.95); } }