Create a class called Book that contains:

Four private instance variables: name (String), author (String), price (double), and qtyInStock (int).

One constructor, which initializes all instances with the values given, except qtyInStock, assume all qtyInStock are equal to 2 for all given books.

Methods getters and setters for all the instance variables

Write a test program called TestBook to test the constructor and public methods in the class Book. Allow the user to inquire about books and buy books until exit is chosen. If a book is bought you need to modify the quantity available form that book. In your main you should first create 4 books as follows:

1. Big Magic by Elizabeth Gilbert $6.55

2. The glass castle by Jeannette Walls $5.55

3. Steve Jobs by Walter Isaacson $20.23

4. Bill Gates by George llian $26.56

Then promote the user to make a choice. Use the sample output below to guide you.