Question

WRITE IN JAVA, please include comments and explain what you did

A Book has such properties as title, author, and numberOfPages. A Volume will have properties such as volumeName, numberOfBooks, and an array of book objects (Book [ ]). You are required to develop the Book and Volume classes, then write an application (DemoVolume) to test your classes. The directions below will give assistance.

Create a class called Book with the following properties using appropriate data types: Title, Author, numberOfPages, Create a second class called Volume with the following properties using appropriate data types: volumeName, numberOfBooks and Book [ ]. The Book [ ] contains an array of book objects.

Directions

Create a class called Book with the following properties using appropriate data types: Title, Author, numberOfPages,

The only methods necessary in the Book class, for this exercise, are the constructor and a toString().

Create a second class called Volume with the following properties using appropriate data types: volumeName, numberOfBooks and Book [ ]. Book [ ] will contain an array of book objects.

The only methods necessary in the Volume class, for this exercise, are the constructor, toString() and getBookArray(). The getBookArray returns a string of book properties for each book.

Create an application called DemoVolume.In the main method,

Create an array of book objects to be added to the volume.

Create a volume object called volume1.

Display the properties of volume1.

Grading

Task	Points
Book class properties created	2
Volume class created correctly	1
Constructors created correctly	2
"this" reference used effectively	1
Array of book objects created	2
Proper documentation / Pseudocode	1
Program works effectively	1
Total	10

Answer 1

OUTPUT SCREENSHOT :

===========================================================================

CODE:

Book.java:

public class Book {
    private String title;
    private String author;
    private int numberOfPages;

    //Constructor for Book Object
    public Book(String title, String author, int numberOfPages) {
        this.title = title;
        this.author = author;
        this.numberOfPages = numberOfPages;
    }

    @Override
    public String toString() {
        return  "Title = '" + title + '\'' +
                ", Author = '" + author + '\'' +
                ", Number Of Pages = " + numberOfPages ;
    }
}

==========================================================================

Volume.java:

public class Volume {
    private String volumeName;
    private int numberOfBooks;
    private Book[] books;

    //Constructor for Volume Object
    public Volume(String volumeName, Book[] books) {
        this.volumeName = volumeName;
        this.numberOfBooks = books.length ;
        this.books = books;
    }

    //Prints the books stored
    public void getBookArray(){
        for (Book b: this.books) {
            System.out.println(b);
        }
    }

    @Override
    public String toString(){
        return "Name of Volume: " + this.volumeName  +"\nNumber of Books: " + this.numberOfBooks + "\n";
    }
}

============================================================================

DemoVolume.java:

public class DemoVolume {
    public static void main(String[] args) {

        //Making books array
        Book[] books = { new Book("Game of Thrones","George Martin", 1200),
                         new Book("Harry Potter","JK Rowling",1500),
                         new Book("The Alchemist","Paulo Coelho", 350),
                         new Book("50 Shades of Grey","EL James",1400) };


        //Making a volume Object and adding books array to it.
        Volume voulme1 = new Volume("Volume 1", books);

        //Displaying the property of Books in Volume 1.
        System.out.println(voulme1);
        voulme1.getBookArray();
    }
}

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