Answer:
//Create a public class to test the application
public class BookTest{
//write the main method
public static void main(String []args){
//Create two Book objects
Book book = new Book("Book 1", 2000, "First edition", 2900);
Book book2 = new Book("Book 2", 3000, "First edition", 3900);
//Output the cost of the two books
System.out.println("Cost of first book is " +book.getCost());
System.out.println("Cost of second book is " + book2.getCost());
} //End of main method
} //End of BookTest Class
//Write the Book class
class Book {
//declare all variables and make them private
private String name;
private double cost;
private String edition;
private double price;
//create a public constructor
public Book(String name, double cost, String edition, double price){
this.name = name;
this.cost = cost;
this.edition = edition;
this.price = price;
}
//getter method for name
public String getName(){
return this.name;
}
//setter method for name
public void setName(String name){
this.name = name;
}
//getter method for cost
public double getCost(){
return this.cost;
}
//setter method for cost
public void setCost(double cost){
this.cost = cost;
}
//getter method for edition
public String getEdition(){
return this.edition;
}
//setter method for edition
public void setEdition(String edition){
this.edition = edition;
}
//getter method for price
public double getPrice(){
return this.price;
}
//setter method for price
public void setPrice(double price){
this.price = price;
}
//function to return price with 5% tax
public double priceWithTax(){
return this.price + (0.05 * this.price);
}
}
============================================
Cost of first book is 2000.0
Cost of second book is 3000.0
============================================
The code above has been written in Java and it contains comments explaining important parts of the code. Kindly go through those comments. For clarity, the actual lines of code have been written in bold face.
A sample output resulting from a run of the code has also been provided.
