1 2 // Java core packages 3 import java.text.DecimalFormat; 4 import java.time.LocalDate; 5 6 // Java extension packages 7 import javax.swing.JOptionPane; Demonstrating Polymorphism 8 9 public class Test { В 1 28 3 4 6 7 8 9 1 2 3 4 // test book hierarchy public static void main(Stri Book book; // superclass String output = ""; Novel novel new Novel( EducationBook educationb LocalDate. of (191 Classic classic = new Cl DecimalFormat precision2 // book reference to a n book ■ novel; i Novel: 1 Harry Potter J.K Rowling 1992-03-26 costs $20.00 Novel: 1 Harry Potter J.K Rowling 1992-03-26 costs $20.00 Education Book: 2 My Maths 3 James Jones 1913-03-26 costs $62.40 Education Book: 2 My Maths 3 James Jones 1913-03-26 costs $62.40 Classic: 3 The Great Gatsby F. Scott Fitzgerald 1800-03-26 costs $35.00 Classic: 3 The Great Gatsby F. Scott Fitzgerald 1800-03-26 costs $35.00 Book: Novel: 1 Harry Potter J.K Rowling 1992-03-26, cost: 20.0 X Book: Education Book: 2 My Maths 3 James Jones 1913-03-26, cost: 62.4 Book: Classic: 3 The Great Gatsby F. Scott Fitzgerald 1800-03-26, cost: 35.0 Education Book: 4 My Maths 4 James Jones 1913-03-26 Cost Error: Total Book Cost cannot be negative. Book: Classic: 5 The Greatest Harry F. SNEwewcott Fitzgerald 2018-03-26, cost: 35.0 Total Cost: 186.788 OK 7 try { 5698231 output += book.toString() + "costs $" + precision2.format(book.cost()) + "\n" + novel.toString() + costs $" + precision2. format (novel.cost()) + "\n"; " // book reference to a educationbook LILE