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B3 Object-oriented programming

IB Computer Science Topic B3: Object-oriented Programming

A1.1 Computer hardware and operation

A1.2 Data representation and computer logic

A1.3 Operating systems and control systems

A1.4 Translation (HL only)

A2.1 Network fundamentals

A2.2 Network architecture

A2.3 Data transmissions

A2.4 Network security

A3.1 Database fundamentals

A3.2 Database design

A3.3 Database programming

A3.4 Alternative databases and data warehouses (HL only)

A4.1 Machine learning fundamentals

A4.2 Data preprocessing (HL only)

A4.3 Machine learning approaches (HL only)

A4.4 Ethical considerations

B1.1 Approaches to computational thinking

B2.1 Programming fundamentals

B2.2 Data structures

B2.3 Programming constructs

B2.4 Programming algorithms

B2.5 File processing

B3.1 Fundamentals of OOP for a single class

B3.2 Fundamentals of OOP for multiple classes (HL only)

B4.1 Fundamentals of ADTs

IB Computer Science Topic B3 Object-oriented Programming (SL/HL) covers syllabus content. Use these Notes, Questionbank, Flashcards, and Lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.

Practice

Question Bank

Practice questions with AI feedback

131 questions

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Study Guide

Bite-sized topic summaries

28 chapters

Lessons

Step-by-step lessons and quizzes

12 lessons

Flashcards

Remember concepts with active recall

10 flashcard decks

Reference

Key Definitions

Essential terms and concepts explained

5 definitions

B3.1.1 Evaluating the Fundamentals of OOP

B3.1.2 Designing Classes, Their Methods, and Behaviour

B3.1.3 Distinguishing Between Static and Non-Static Variables and Methods

B3.1.4 Constructing Code to Define Classes and Instantiate Objects

B3.1.5 Explaining and Applying the Concepts of Encapsulation and Information Hiding in OOP

B3.2.1 Applying the Concept of Inheritance in OOP to Promote Code Reusability (HL only)

B3.2.2 Constructing Code to Model Polymorphism and Its Various Forms, Such as Method Overriding (HL only)

B3.2.3 Explaining the Concept of Abstraction in OOP (HL only)

B3.2.4 Explaining the Role of Composition and Aggregation in Class Relationships (HL only)

B3.2.5 Explaining Commonly Used Design Patterns in OOP (HL only)

What this topic covers