package examplesUsingMainClass;

import tester.ISame;

/**

* A class to represent a book with an author.

* An example of a class with containment.

*/

public class Book implements ISame<Book> {

/** the title of the book */

public String title;

/** the author of the book - an instance of

* <CODE>{@link Author Author}</CODE> class */

protected Author author;

/** the year of publication */

protected int year;

/**

* Constructor

*

* @param title the tile of the book

* @param author the author of the book

* @param year the year of publication

*/

public Book(String title, Author author, int year) {

this.title=title;

this.author=author;

this.year=year;

}

/**

* Method to use in tests - change the

* <CODE>{@link Author Author}</CODE> of this book to the given one.

*

* @param auth the given author

* @return new book with real author as given

*/

public Book changeAuthor(Author auth) {

return new Book(this.title, auth, this.year);

}

/**

* Is this book the same as that book?

*

* @param that the book to compare with

* @return true if this book is the same as that book

*/

public boolean same(Book that) {

return

this.title.equals(that.title) &&

this.author.same(that.author) &&

this.year == that.year;

}

}