package src;

/**

* A class called circle is designed as shown in the following class diagram. It contains:

*

* 1) Two private instance variables: radius (of type double) and color (of type String),

* with default value of 1.0 and "red", respectively.

* 2) Two overloaded constructors;

* 3) Two public methods: getRadius() and getArea().

*

* The source codes for Circle is as follows:

*/

public class Book {

private String name;

private double price;

private Author author;

private int qtyInStock = 0;

public Book (String name, Author author, double price) {

this.name = name;

this.author = author;

this.price = price;

}

public Book (String name, Author author, double price, int qtyInStock) {

this.name = name;

this.author = author;

this.price = price;

this.qtyInStock = qtyInStock;

}

public String getName() {

return this.name;

}

public Author getAuthor() {

return this.author;

}

public double getPrice() {

return this.price;

}

public void setPrice(double price) {

this.price = price;

}

public int getQtyInStock() {

return this.qtyInStock;

}

public void setQtyInStock(int qtyInStock) {

this.qtyInStock = qtyInStock;

}

public String getAuthorName() {

return this.author.getName();

}

public String getAuthorEmail() {

return this.author.getEmail();

}

public char getAuthorGender() {

return this.author.getGender();

}

public String toString() {

return "'" + name +"' by " + author;

}

}