Object-Oriented Programming (OOP)

This repository contains comprehensive coursework, exercises, and projects for an Object-Oriented Programming course using C++. The materials demonstrate progressive learning from basic programming concepts to advanced OOP principles.

📁 Repository Structure

📚 Theory Section (theoretical)

Theoretical foundations and structured learning materials

Week 1 (LT-TUAN-01) - Programming Fundamentals

• BAI-TAP-01: Core programming exercises
  • Fraction operations and arithmetic
  • Date manipulation systems
  • Login authentication systems
  • University admission calculator
  • Number guessing games

Week 2 (LT-TUAN-02) - Introduction to Classes

• BAI-TAP-02: First OOP implementations
  • HOCSINH: Student class with grade calculations
  • SOPHUC: Complex number operations

Week 3 (LT-TUAN-03) - Class Design Patterns

• TAMGIAC.cpp: Triangle geometry calculations
• HCN.cpp: Rectangle class implementation

Week 4 (LT-TUAN-04) - Operator Overloading

• BAI-TAP-04: Advanced operator implementations
  • BAI02: Fraction arithmetic operators
  • BAI05: Date arithmetic operations
  • BAI07: Polynomial class with full operator support
  • BAI09: Integer wrapper class

Week 5 (LT-TUAN-05) - Dynamic Memory Management

• BAI01_MANGMOTCHIEU: Dynamic array implementation
• BAI03_MATRANVUONG: Square matrix operations

Week 6 (LT-TUAN-06) - Advanced Class Features

• BAI01: 3D point manipulation and geometric calculations

Week 7 (LT-TUAN-07) - Inheritance and Polymorphism

• BAI-TAP-07: Complete OOP systems
  • TH7-BAI01: Company management with employee hierarchy
  • TH7-BAI02: University system with student types
  • TH7-LT-BAI01: Employee management patterns
  • TH7-LT-BAI06: Animal inheritance examples

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🛠️ Practice Section (practice)

Hands-on implementation and skill development

Week 1 (TH-TUAN-01) - Basic Programming Practice

• Mirror exercises from theory with practical implementation focus
• Includes: ThucHanh1_Bai3.cpp, ThucHanhThem1_Bai11.cpp

Week 2 (TH-TUAN-02) - Object Fundamentals

• DIEM: Point class with geometric operations
• PTBAC1: Linear equation solver
• SOPHUC: Complex number arithmetic

Week 3 (TH-TUAN-03) - Class Implementation Practice

• BAI01: Triangle class with validation
• BAI02: Polynomial operations

Week 4 (TH-TUAN-04) - Operator Implementation

• BAI02: Quadratic function operations

Week 5 (TH-TUAN-05) - Advanced Operations

• BAITAP1-TH06-BAI04.cpp: 3D coordinate system with complete operators

Week 6 (TH-TUAN-06) - Final Exam Preparation

• KIEM-TRA-CUOI-KY-2: Comprehensive company management system

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📝 Assignment Section (assignment)

Project-based learning and comprehensive applications

Core OOP Projects (BT-OOP)

• BANGCUUCHUONG: Multiplication table generator
• BAITAP_LOPBAO: Comprehensive geometry package (Triangle, Rectangle, Circle)
• DIEM: Advanced point manipulation system
• HOCSINH: Student information management
• PTB1: Equation solving system
• SOPHUC: Complex number calculator
• THUCHANHTUAN03_BAI1: Triangle geometry
• THUCHANHTUAN03_BAI2: Polynomial algebra

Week 6 Assignments (BT-06)

• BAI01: 3D geometric calculations
• BAI04: Advanced point operations

Week 7 Assignments (BT-07) - Advanced OOP

• TH7-BAI01: Employee management with file operations
• TH7-BAI02: University management system
• TH7-LT-BAI01: Professional employee hierarchy
• TH7-LT-BAI06: Animal classification system

Operator Overloading Projects (BT-OVERLOADING)

• BAI1: Complex number operators
• BAI5: Date arithmetic
• BAI7: Polynomial mathematics

Mid-term Projects (BT-GIUA-KY)

• BAI02: Quadratic equation comprehensive system

Final Exam Projects (BT-CUOI-KY)

• KIEMTRACUOIKY2: Complete enterprise management system with:
  • Full employee hierarchy (LAPTRINHVIEN, KIEMCHUNGVIEN)
  • File I/O operations
  • Advanced search and filtering
  • Statistical analysis functions

🎯 Learning Progression

Foundation Level (Weeks 1-2)

• Basic programming with structs
• Introduction to classes and objects
• Simple member functions

Intermediate Level (Weeks 3-5)

• Advanced class design
• Operator overloading mastery
• Dynamic memory management
• Container implementations

Advanced Level (Weeks 6-7)

• Inheritance hierarchies
• Polymorphism and virtual functions
• File operations and data persistence
• Complex system architecture

🏗️ Key Project Highlights

Employee Management Systems

Multiple implementations demonstrating evolution of OOP understanding:

1. Basic Version: Simple employee data management
2. Intermediate Version: Added inheritance and basic polymorphism
3. Advanced Version: Complete system with file I/O, search, and analytics

Mathematical Object Systems

• Fraction Calculator: Complete arithmetic with operator overloading
• Polynomial Algebra: Mathematical expression handling
• Complex Numbers: Advanced mathematical operations
• Geometric Calculations: Point, triangle, rectangle, and circle operations

Academic Management Systems

• Student Information: Grade calculations and classification
• University Management: Student types, scholarships, and statistics
• Course Management: Multiple academic scenarios

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Progressive Complexity: Each folder builds upon previous concepts, creating a comprehensive learning journey from basic programming to advanced object-oriented design patterns.