In Java; Book title$=$Java Programming, author$=$Liang, pages$=1320,$ price $=$$$145\mathrm{.}00$

Book title$=$Horton Hears a Who!, author$=$Dr$.$Seuss, pages$=72,$ price $=$ $$19\mathrm{.}99$

Book title$=$The Hobbit, author$=$Tolkien, pages $=320,$ price $=$$$9\mathrm{.}25$

Book title$=$Born a Crime, author$=$Noah, pages$=304,$ price $=$$$17\mathrm{.}33$

Book title$=$null, author$=$null, pages $=0,$ price $=$$$0\mathrm{.}00$

Book title$=$null, author$=$null, pages $=0,$ price $=$$$0\mathrm{.}00$

Books after completing library and $40\%$ discount

Book title$=$Java Programming, author$=$Liang, pages $=1320,$ price $=$$$87\mathrm{.}00$

Book title$=$Horton Hears a Who!, author$=$Dr$.$Seuss, pages $=72,$ price $=$$$11\mathrm{.}99$

Book title$=$The Hobbit, author$=$Tolkien, pages $=320,$ price $=$$$5\mathrm{.}55$

Book title$=$Born a Crime, author$=$Noah, pages $=304,$ price $=$$$10\mathrm{.}40$

Book title$=$Dark Territory, author$=$Kaplan, pages $=352,$ price $=$$$11\mathrm{.}24$

Book title$=$Born to Run, author$=$Springsteen, pages $=508,$ price $=$$$12\mathrm{.}17$

Here is the most expensive book after the discounts

Book title$=$Java Programming, author$=$Liang, pages $=1320,$ price $=$$$87\mathrm{.}00$

Size of library: $6$ books

Two files are required, a data class named Book and an executable class named TestBook.

Class Book

has instance data members $($all private$)$ String title, String author, int pages, double price.

has a public static int variable named numBooks with an initial value of zero.

has a parameterized constructor that will be used to make a Book object and assign values to its data members, and increment numBooks.

has a no$-$arg constructor that increments numBooks.

has getters and setters for all instance data members.

has a toString$()$ method that returns a string displaying the state of a Book instance.

Use the numBooks variable to report the number of books instantiated.

Class TestBook

This class needs a main method and two more methods.

In main:

create an array capable of holding six Book objects.

use the parameterized constructor to specify the data in the first four elements of this array

use the no$-$arg constructor to create the two remaining books in the array.

process the array with a foreach loop to display the array at this point.

call the finishArray$()$ method with the array as the only argument.

call the reduceBooks$()$ method with the array as the sole argument.

repeat the code needed by Step $4$ above.

display the most expensive book after the discounts.

In finishArray$()$:

this is a void method.

use the setter methods to specify the data in all fields of the last two books in the array.

In reduceBooks$()$:

this method returns a Book instance.

use a loop $($any type$)$ to reduce the price of every book in the array by $40\%.$

determine the most expensive book after the discounts and return this book to main.