The goal of this coding exercise is to create two classes BookstoreBook and LibraryBook. Both classes have these attributes: author: String tiltle: String isbn : String - The BookstoreBook has an additional data member to store the price of the book, and whether the book is on sale or not. If a bookstore book is on sale, we need to add the reduction percentage (like 20% off...etc). For a LibraryBook, we add the call number (that tells you where the book is in the library) as a string. The call number is automatically generated by the following procedure: The call number is a string with the format xx.yyy.c, where xx is the floor number that is randomly assigned (our library has 99 floors), yyy are the first three letters of the author’s name (we assume that all names are at least three letters long), and c is the last character of the isbn. - In each of the classes, add the setters, the getters, at least three constructors (of your choosing) and override the toString method (see sample run below). - Your code should display the list of all books keyed in by the user What’s new in HW5: - Create an abstract class that you call Book. The class Book should have the fields and the code that is shared by both the BookstoreBook and the LibraryBook classes. Both of those classes extend the Book class. Test your code with an array of 100 elements of Book. Call that array list (You can’t have an array to store the BookstoreBook objects and another one to store the LibraryBook objects. One array (list) to hold all the book objects that your code creates). - Create a class that you call BookList in which you put list as a private field. Your code must have the following structure: public class Main { public static void main(String args[]) { // Instantiate the class BookList here ... } } //___________________________ abstract class Book { //code of the abstract class Book } //___________________________ class BookstoreBook extends Book { // fields and specific code to the BookstoreBook class goes here } //___________________________ class LibraryBook extends Book { // fields and specific code to the LibraryBook class goes here } //___________________________ class BookList { private Book[] list; public BookList() { list = new Book[100]; // Additional code goes here if needed... } } Sample Run (Same as in HW4) The user’s entry is marked in boldface Welcome to the book program! Would you like to create a book object? (yes/no): yEs Please enter the author, title ad the isbn of the book separated by /: Ericka Jones/Java made Easy/458792132 Got it! Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): BLB Oops! That’s not a valid entry. Please try again: Bookstore Oops! That’s not a valid entry. Please try again: bB Got it! Please enter the list price of JAVA MADE EASY by ERICKA JONES: 14.99 Is it on sale? (y/n): y Deduction percentage: 15% Got it! Here is your bookstore book information [458792132-JAVA MADE EASY by ERICKA JONES, $14.99 listed for $12.74] Would you like to create a book object? (yes/no): yeah I’m sorry but yeah isn’t a valid answer. Please enter either yes or no: yes Please enter the author, title and the isbn of the book separated by /: Eric Jones/Java made Difficult/958792130 Got it! Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): LB Got it! Here is your library book information [958792130-JAVA MADE DIFFICULT by ERIC JONES-09.ERI.0] Would you like to create a book object? (yes/no): yes Please enter the author, title and the isbn of the book separated by /: Erica Jone/Java made too Difficult/958792139 Got it! Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): LB Got it! Here is your library book information [958792139-JAVA MADE TOO DIFFICULT by ERICA JONE-86.ERI.9] Would you like to create a book object? (yes/no): no Sure! Here are all your books... Library Books (2) [958792130-JAVA MADE DIFFICULT by ERIC JONES-09.ERI.0] [958792139-JAVA MADE TOO DIFFICULT by ERICA JONE-86.ERI.9] _ _ _ _ Bookstore Books (1) [458792132-JAVA MADE EASY by ERICKA JONES, $14.99 listed for $12.74] _ _ _ _ Take care now
The goal of this coding exercise is to create two classes BookstoreBook and LibraryBook. Both classes have these attributes:
author: String
tiltle: String
isbn : String
- The BookstoreBook has an additional data member to store the price of the book, and whether the book is on sale or not. If a bookstore book is on sale, we need to add the reduction percentage (like 20% off...etc). For a LibraryBook, we add the call number (that tells you where the book is in the library) as a string. The call number is automatically generated by the following procedure:
The call number is a string with the format xx.yyy.c, where xx is the floor number that is randomly assigned (our library has 99 floors), yyy are the first three letters of the author’s name (we assume that all names are at least three letters long), and c is the last character of the isbn.
- In each of the classes, add the setters, the getters, at least three constructors (of your choosing) and override the toString method (see sample
run below).
- Your code should display the list of all books keyed in by the user
What’s new in HW5:
- Create an abstract class that you call Book. The class Book should have the fields and the code that is shared by both the BookstoreBook and the LibraryBook classes. Both of those classes extend the Book class. Test your code with an array of 100 elements of Book. Call that array list (You can’t have an array to store the BookstoreBook objects and another one to store the LibraryBook objects. One array (list) to hold all the book objects that your code creates).
- Create a class that you call BookList in which you put list as a private field. Your code must have the following structure:
public class Main {
public static void main(String args[]) {
// Instantiate the class BookList here ...
}
}
//___________________________
abstract class Book {
//code of the abstract class Book
}
//___________________________
class BookstoreBook extends Book {
// fields and specific code to the BookstoreBook class goes here
}
//___________________________
class LibraryBook extends Book {
// fields and specific code to the LibraryBook class goes here
}
//___________________________
class BookList {
private Book[] list;
public BookList() {
list = new Book[100];
// Additional code goes here if needed...
}
}
Sample Run (Same as in HW4)
The user’s entry is marked in boldface
Welcome to the book program!
Would you like to create a book object? (yes/no): yEs
Please enter the author, title ad the isbn of the book separated by /: Ericka Jones/Java made Easy/458792132
Got it!
Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): BLB
Oops! That’s not a valid entry. Please try again: Bookstore
Oops! That’s not a valid entry. Please try again: bB
Got it!
Please enter the list price of JAVA MADE EASY by ERICKA JONES: 14.99
Is it on sale? (y/n): y
Deduction percentage: 15%
Got it!
Here is your bookstore book information
[458792132-JAVA MADE EASY by ERICKA JONES, $14.99 listed for $12.74]
Would you like to create a book object? (yes/no): yeah
I’m sorry but yeah isn’t a valid answer. Please enter either yes or no: yes
Please enter the author, title and the isbn of the book separated by /: Eric Jones/Java made Difficult/958792130
Got it!
Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): LB
Got it!
Here is your library book information
[958792130-JAVA MADE DIFFICULT by ERIC JONES-09.ERI.0]
Would you like to create a book object? (yes/no): yes
Please enter the author, title and the isbn of the book separated by /: Erica Jone/Java made too Difficult/958792139
Got it!
Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): LB
Got it!
Here is your library book information
[958792139-JAVA MADE TOO DIFFICULT by ERICA JONE-86.ERI.9]
Would you like to create a book object? (yes/no): no
Sure!
Here are all your books...
Library Books (2)
[958792130-JAVA MADE DIFFICULT by ERIC JONES-09.ERI.0]
[958792139-JAVA MADE TOO DIFFICULT by ERICA JONE-86.ERI.9]
_ _ _ _
Bookstore Books (1)
[458792132-JAVA MADE EASY by ERICKA JONES, $14.99 listed for $12.74]
_ _ _ _
Take care now!
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