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.

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, Case Studies, Maternal Health, Statistical Analysis
★ 4.5 (24) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, React Native, Application Development, User Story, Mobile Development Tools, Flutter (Software), User Interface and User Experience (UI/UX) Design, User Interface (UI), Data Persistence, User Interface (UI) Design, Figma (Design Software), Application Deployment, Application Programming Interface (API), Software Development, GitHub, Git (Version Control System)
★ 4.8 (30) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Restful API, AI Integrations, Application Deployment, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), LLM Application, Java, Development Environment, Image Analysis, Software Development, Computer Vision
★ 4.6 (20) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Database Management, Database Administration, Database Management Systems, Databases, Database Application, Relational Databases, Database Architecture and Administration, Data Security, User Accounts, User Provisioning, SQL, Application Security, Security Controls, NoSQL, Role-Based Access Control (RBAC), Exploitation techniques, Encryption
★ 4.7 (71) · Beginner · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Architectural Design, Building Design, Art History, Architecture and Construction, Aesthetics, European History, Design Elements And Principles, Design
★ 4.8 (186) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Problem Solving, Agentic systems, Computational Thinking, Computer Vision, Game Theory, Image Analysis, Artificial Neural Networks, Statistical Modeling, Probability Distribution, Decision Intelligence, Convolutional Neural Networks, Logical Reasoning, Algorithms, Human Development, Behavioral Economics, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, AI literacy, Theoretical Computer Science, Psychology
★ 4.4 (374) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Data Ethics, Security Awareness, Healthcare Ethics, Responsible AI, Ethical Standards And Conduct, Cybersecurity, Diversity Awareness, Generative AI, Artificial Intelligence, Diversity Training, Computer Science, Diversity Programs, digital literacy, Medical Privacy, Information Privacy, Diversity Equity and Inclusion Initiatives, Social Impact, AI Personalization, Media and Communications, Clinical Research Ethics
★ 4.5 (63) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Kubernetes, Release Management, Cloud Infrastructure, Software Installation, Application Lifecycle Management, Performance Tuning, Cloud Computing, General Networking, Systems Architecture, Software Architecture, Network Model, Memory Management
★ 4.2 (68) · Intermediate · Specialization · 3 - 6 Months
University of California San Diego
Skills you'll gain: Collaborative Software, Telecommuting, Team Collaboration, Human Computer Interaction, Social Impact, Social Network Analysis, Interaction Design, Social Sciences, Driving engagement, Digital Communications
★ 4.4 (820) · Mixed · Course · 1 - 4 Weeks

The World Bank Group
Skills you'll gain: Climate Change Programs, Climate Change Adaptation, Climate Change Mitigation, Resilience, Sustainable Development, Environment, Mitigation, Environmental Resource Management, Environmental Policy, Water Resources, Scientific Methods, Cooperation, Environmental Science, Collaboration, Water Resource Management, Economic Development
★ 4.8 (248) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Embedded Software, Embedded Systems, Debugging, Model Based Systems Engineering, Failure Analysis, Simulation and Simulation Software, Technical Communication, System Programming
★ 4.6 (245) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Architecture, Wireless Networks, Emerging Technologies, Network Engineering, Network Planning And Design, Network Infrastructure, Network Performance Management, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Distributed Computing, Technology Strategies
★ 4.5 (32) · Intermediate · Course · 1 - 4 Weeks