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.

Macquarie University
Skills you'll gain: Cyber Security Policies, Cyber Security Strategy, Cyber Risk, Security Strategy, Cybersecurity, Cyber Security Assessment, Organizational Change, Change Management, Risk Management
★ 4.9 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Cascading Style Sheets (CSS), Web Design and Development, Front-End Web Development, Hypertext Markup Language (HTML), Web Development Tools, UI Components, Application Frameworks, Web Frameworks, Web Development
★ 4.1 (27) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Human Development, Biology, Child Development, Music, Decision Making, Liberal Arts, Life Sciences, Education and Training, Psychology, Performing Arts, Medical Science and Research, Pedagogy, Business Research, Business Economics, Clinical Trials, Instructional and Curriculum Design
★ 4.4 (43) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Facebook, Marketing Design, Marketing Materials, Promotional Materials, Social Media Content, Organizational Skills, Content Creation, Advertising, Branding, Social Media Marketing, Dashboard, Marketing, Graphic Design, Digital Advertising
★ 4.8 (20) · Intermediate · Guided Project · Less Than 2 Hours

Illinois Tech
Skills you'll gain: Javascript and jQuery, jQuery, Responsive Web Design, Web Development, Version Control, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Hypertext Markup Language (HTML), HTML and CSS, Web Frameworks, GitHub, Web Applications, Javascript, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Network Architecture, Network Infrastructure, Application Frameworks
★ 4.6 (19) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Patient Evaluation, Collaboration, Health Technology, Clinical Assessment, Vital Signs, Health Assessment, Patient Preparation, Health Care, Patient Positioning, Patient Coordination, Patient Education And Counseling, Patient-centered Care, Patient Treatment, Patient Flow, End User Training and Support, Telecommunications, Communication
★ 4.9 (39) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: OpenAI API, OpenAI, Image Analysis, Generative AI, ChatGPT, LLM Application, Multimodal Prompts, Tool Calling, Application Programming Interface (API), Large Language Modeling, Artificial Intelligence, AI Integrations, Natural Language Processing, Computer Vision, File Management
★ 3.9 (7) · Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Energy and Utilities, Equipment Design, Radiation Protection, Waste Minimization, Plant Operations and Management, Thermal Management, Materials science, Production Process, Manufacturing Processes, Process Engineering, Chemical Engineering, Engineering Design Process, Process Control, Facility Management, Engineering Calculations, Control Systems, Environmental Engineering, Cost Estimation, Chemistry, Natural Resource Management
★ 4.9 (39) · Intermediate · Specialization · 3 - 6 Months

Harvard Business Review
Skills you'll gain: Performance Analysis, Process Analysis, Goal Setting, Delegation Skills, Performance Measurement, Project Management, Meeting Facilitation, Time Management, Team Performance Management, Goal-Oriented, Project Risk Management, Project Coordination, Productivity, Leadership, Conflict Management, Negotiation, Prioritization, Planning, Organizational Strategy, Organizational Development
★ 4.9 (15) · Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: AI Orchestration, AI Workflows, CrewAI, LangGraph, Agentic Workflows, LLM Application, LangChain, Large Language Modeling, Agentic systems, Generative AI Agents, AI Integrations, Application Deployment, Artificial Intelligence and Machine Learning (AI/ML), Software Architecture, Systems Architecture, Context Management, API Design, Software Design, Data Validation, Memory Management
★ 4 (6) · Intermediate · Specialization · 1 - 3 Months

Arizona State University
Skills you'll gain: Statistical Analysis, Regression Analysis, Sampling (Statistics), Statistical Modeling, Statistical Methods, Mathematical Modeling, Data Transformation, Probability Distribution, Logistic Regression
★ 4.7 (36) · Intermediate · Course · 1 - 4 Weeks

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