(console app)#Examination System in C

This project implements an Examination System in C# that supports multiple types of questions and exams. It is designed with an object-oriented approach, incorporating inheritance, interfaces, generics, and event-driven programming. Features Question Types: True/False Multiple Choice (Single Answer) Multiple Choice (Multiple Answers) Question List Management Inherits from List<Question> Overrides Add() method to log questions into a file Answer List and Management Exam Base Class Attributes: Exam time, number of questions, answer dictionary, status (Starting, Queued, Finished) Implements IClonable, IComparable Overrides ToString(), Equals(), GetHashCode() Exam Types: Practice Exam: Displays the correct answers after submission. Final Exam: Displays only questions and answers. Subject Association Event Notification System When an exam enters Starting mode, all registered students for that subject are notified. Class Structure 1. Question (Base Class) Represents a general question structure with: Header (title of the question) Body (question text) Marks (assigned marks) Answers (linked to AnswerList) 2. Question Subclasses TrueFalseQuestion ChooseOneQuestion ChooseAllQuestion 3. QuestionList<T> Inherits from List<T> Overrides Add() to log questions to a file 4. Answer Class Represents an answer with its correctness status. 5. AnswerList Stores multiple answers related to a question. 6. Exam (Base Class) Attributes: Time, Number of Questions, Question-Answer Dictionary Methods: ShowExam() (overridden in subclasses) Implements IClonable, IComparable Supports ToString(), Equals(), GetHashCode() 7. PracticeExam (Derived from Exam) Displays correct answers after the test is completed. Reads questions dynamically from Questions.txt Logs results to PracticeExam_1.txt 8. FinalExam (Derived from Exam) Displays only questions and answers. Logs results to FinalExam_1.txt 9. Subject Represents the subject an exam is associated with. 10. Student & Notification System Implements event-driven notifications when an exam starts.