Student
-id: int
-name: String
+borrowBook(): void
+returnBook(): void
Book
-title: String
-author: String
+getDetails(): void
Librarian
-empId: int
-name: String
+addBook(): void
+removeBook(): void
Fine
-fineId: int
-amount: float
+payFine(): void
Library
-name: String
-location: String
Answer (1)
The question is about understanding the structure of programming classes in object-oriented programming. It appears to describe several classes or entities that might be part of a library management system, using a format that could be similar to a Unified Modeling Language (UML) diagram. Let's break it down:
Student Class :
Attributes :
student-id (type int): This might represent a unique identifier for each student.
name (type String): This would store the student's name.
Methods :
+borrowBook(): void: A function that allows the student to borrow a book.
+returnBook(): void: A function that allows the student to return a borrowed book.
Book Class :
Attributes :
title (type String): Represents the title of the book.
author (type String): Represents the author of the book.
Methods :
+getDetails(): void: This function might be used to retrieve and display the details of the book.
Librarian Class :
Attributes :
empId (type int): Unique identifier for each librarian.
name (type String): Stores the librarian's name.
Methods :
+addBook(): void: A function to add a new book to the system.
+removeBook(): void: A function to remove an existing book from the system.
Fine Class :
Attributes :
fineId (type int): Unique identifier for each fine.
amount (type float): Represents the amount of the fine.
Methods :
+payFine(): void: This function might be invoked to pay a fine.
Library Class :
Attributes :
name (type String): Name of the library.
location (type String): Location or address of the library.
This structure provides a way to manage a library system programmatically, using classes to encapsulate different elements and behaviors associated with a library. Each class has attributes (variables) and methods (functions) that define what the class is and what it can do.
