Implement a basic version of your proposed functionality and create unit tests for each class. You should at least have 5 classes, 1 of which should be abstract, 2 of which should inherit from this abstract class, and 2 of which should not inherit from this abstract class (or the subclasses).***********************************

 

******************* want java code*******************

 

 

Scenario: 

Students of the library can access the library's digital resources online using the library management system. Online users can look up, reserve, and check out books. Moreover, users have the option to seek holds on presently checked-out books as well as renew their borrowed books. Users will be informed by the system of their due dates and any associated late fines.  

 

 

Noun-verb Analys 

 

Noun	Verb
Library	Provide
Management system	Access
Platform	Search
Users	Reserve
Resources	Check-out
Books	Renew
Due dates	Request
Late Fees	Notify
	Incurred

 

 

 

 

 

 

 

 

Use case diagram 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRC Card 

 

Library
Responsibility	Collaboration
Maintain a collection of books	Book
Check book availability	Student
Manage book inventory

 

Staff
Responsibility	Collaboration
Store book information	library
Check availability	Student
Manage book status

 

Student
Responsibility	Collaboration
Search/reserve book	Book
Check out book	Staff
Request hold

 

 

 

Student Staff Check out Library Search resources Reserve book 000000 Manage Resources Request hold Management system Late fee Platforn Manage User Accounts System