Class PrintedBook

java.lang.Object

com.university.bookstore.model.Material

com.university.bookstore.model.PrintedBook

All Implemented Interfaces:

Comparable<Material>

public class PrintedBook
extends Material

Represents a physical printed book in the bookstore inventory. Extends Material class to demonstrate inheritance.

This class maintains backward compatibility with the original Book class while integrating into the new polymorphic material hierarchy.

Since:

2024-09-15

Version:

2.0

Author:

Navid Mohaghegh

Nested Class Summary

Nested classes/interfaces inherited from class com.university.bookstore.model.Material

Material.MaterialType

Constructor Summary

Constructors

Constructor	Description
PrintedBook(String isbn, String title, String author, double price, int year)	Convenience constructor for backward compatibility.
PrintedBook(String isbn, String title, String author, double price, int year, int pages, String publisher, boolean hardcover)	Creates a new PrintedBook with validation.

Method Summary

Modifier and Type	Method	Description
double	estimateReadingTime(int wordsPerMinute)	Calculates estimated reading time based on average reading speed.
String	getAuthor()
String	getCreator()	Abstract method to get the creator/author/artist of the material.
double	getDiscountRate()	Hook method for discount rate.
String	getDisplayInfo()	Abstract method to get a formatted display string.
String	getIsbn()
int	getPages()
String	getPublisher()
boolean	isHardcover()
String	toString()

Methods inherited from class com.university.bookstore.model.Material

compareTo, equals, getDiscountedPrice, getId, getPrice, getTitle, getType, getYear, hashCode

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Details

PrintedBook

public PrintedBook(String isbn,
 String title,
 String author,
 double price,
 int year,
 int pages,
 String publisher,
 boolean hardcover)

Creates a new PrintedBook with validation.

Parameters:

isbn - the International Standard Book Number

title - the book title

author - the primary author

price - the price in dollars

year - the publication year

pages - number of pages

publisher - the publishing company

hardcover - true if hardcover, false if paperback

PrintedBook

public PrintedBook(String isbn,
 String title,
 String author,
 double price,
 int year)

Convenience constructor for backward compatibility.

Method Details

getCreator

public String getCreator()

Description copied from class: Material

Abstract method to get the creator/author/artist of the material. Implementation varies by material type.

Specified by:

getCreator in class Material

Returns:

the creator's name

getDisplayInfo

public String getDisplayInfo()

Description copied from class: Material

Abstract method to get a formatted display string. Each material type should provide its own formatting.

Specified by:

getDisplayInfo in class Material

Returns:

formatted display string

getDiscountRate

public double getDiscountRate()

Description copied from class: Material

Hook method for discount rate. Default is no discount. Subclasses can override to provide type-specific discounts.

Overrides:

getDiscountRate in class Material

Returns:

discount rate between 0.0 and 1.0

getIsbn

public String getIsbn()

getAuthor

public String getAuthor()

getPages

public int getPages()

getPublisher

public String getPublisher()

isHardcover

public boolean isHardcover()

estimateReadingTime

public double estimateReadingTime(int wordsPerMinute)

Calculates estimated reading time based on average reading speed.

Parameters:

wordsPerMinute - reading speed (typical: 200-250)

Returns:

estimated hours to read

toString

public String toString()

Overrides:

toString in class Material