package javaapplication1;
import java.util.*;

class Author {
    String name;
    String email;
    char gender;

    public Author(String name, String email, char gender) {
        this.name = name;
        this.email = email;
        this.gender = gender;
    }

    public String getName() {
        System.out.println("Name: " + name);
        return name;
    }

    public String getEmail() {
        System.out.println("Email: " + email);
        return email;
    }

    private void setEmail(String inputEmail) {
        this.email = inputEmail;
    }

    public char getGender() {
        System.out.println("Gender: " + gender);
        return gender;
    }

    public String toString() {
        String nameString = "Author name: " + name + "\n";
        String emailString = gender + ", " + email;
        return nameString + emailString;
    }
}

class Book {
    String name;
    Author author;
    double price;
    int qtyInStock;

    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;
    }

    private void setPrice(double price) {
        this.price = price;
    }

    public int getQtyInStock() {
        return this.qtyInStock;
    }

    private void setQtyInStock(int qty) {
        this.qtyInStock = qty;
    }

    public String toString() {
        return name + " by " + getAuthor().name;
    }
}

public class JavaApplication1 {
    public static void main(String[] args) {
        Author author = new Author("Alessio Fanelli", "fana@alessiofanelli.com", 'm');
        Book book = new Book("Testing", author, 20, 150);

        System.out.println(book);

        System.out.println(book.author.email);
    }

}