Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Data Structures, File I/O, Debugging, Data Processing, Application Development, Code Reusability, Maintainability, File Management, File Systems, Programming Principles, Computer Programming, Python Programming, System Configuration, Operating Systems, Software Development, Virtual Machines, Cross Platform Development
★ 4.7 (23) · Beginner · Specialization · 1 - 3 Months

Fudan University
Skills you'll gain: Unity Engine, Game Design, Video Game Development, Intellectual Property, 3D Assets, Mobile Development, Android Development, Animation and Game Design, Cloud Deployment, Application Deployment, Conceptual Design, Android (Operating System), User Interface (UI), Mobile Development Tools, C# (Programming Language), Systems Design, User Interface (UI) Design, Cross Platform Development, Performance Tuning, New Product Development
★ 4.2 (172) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Program Evaluation, Health Equity, Data Collection, Institutional Review Board (IRB), Public Health, Research Design, Nutritional Assessment, Policy Analysis, Healthcare Ethics, Social Impact, Research, Surveys, Family Planning, Maternal Health, Statistical Analysis
★ 4.5 (24) · Beginner · Course · 1 - 3 Months

Advancing Women in Tech
Skills you'll gain: Professional Networking, Performance Management, Interviewing Skills, Product Management, Branding, Workforce Development, Product Knowledge, Initiative and Leadership, Amazon Web Services, Recruitment
★ 4.6 (125) · Beginner · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Threat Management, Systems Development, Security Management, Security Awareness, Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Cyber Security Policies, Threat Detection, ISO/IEC 27001, Data Security, Security Controls, Network Security, Risk Management Framework, Cyber Risk, General Data Protection Regulation (GDPR)
★ 4.9 (40) · Beginner · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Scope Management, Work Breakdown Structure, Project Scoping, Feasibility Studies, Project Management Life Cycle, Contract Management, Project Management, Change Management, Claims Processing, Project Planning, Organizational Structure, Legal Risk, Bidding
★ 4.7 (41) · Intermediate · Course · 1 - 4 Weeks

IESE Business School
Skills you'll gain: Lean Methodologies, Workforce Management, Lean Manufacturing, Service Improvement, Operations Management, Operational Excellence, Operational Performance Management, Business Process Management, Process Optimization, Service Management, Operational Efficiency, Workforce Planning, Staff Management, Business Transformation, Process Analysis, Sustainable Business, Process Flow Diagrams, Capacity Management, Client Services, Capacity Planning
★ 4.4 (25) · Beginner · Course · 1 - 3 Months

Technical University of Munich (TUM)
Skills you'll gain: Social Impact, Experimentation, Program Evaluation, Community Development, Community Organizing, Community Outreach, Sustainable Development, Systems Thinking, Sustainable Systems, Innovation, Culture, Cultural Diversity, Case Studies, Critical Thinking
★ 4.8 (44) · Beginner · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: SketchUp (3D Modeling Software), 3D Modeling, Construction, Building Design, 3D Assets, Architecture and Construction, Computer-Aided Design, Visualization (Computer Graphics)
★ 4.8 (167) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: System Programming, Visual Basic (Programming Language), Database Management, System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Computer Networking, Computer Programming, Network Protocols, Software Development, Automation, Cloud Computing, Debugging
★ 4.6 (116) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Generative AI Agents, LangChain, AI Workflows, LLM Application, AI Orchestration, Agentic systems, Agentic Workflows, Development Environment, Model Evaluation, Large Language Modeling, Artificial Intelligence, AI literacy, Scalability, Performance Tuning, Model Optimization, Design
★ 4.6 (158) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Gateway, Serverless Computing, Cloud API, Restful API, Node.JS, Microsoft Azure, Application Programming Interface (API), API Design, API Testing, Software Testing, Network Routing
★ 4.5 (118) · Beginner · Guided Project · Less Than 2 Hours