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.

University of Washington
Skills you'll gain: GitHub, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Git (Version Control System), HTML and CSS, Web Design and Development, Web Development, Front-End Web Development, Web Content Accessibility Guidelines, Cloud Hosting, Debugging, Semantic Web, Web Analytics and SEO, Responsive Web Design
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, Tensorflow, PyTorch (Machine Learning Library), Anomaly Detection, AI Personalization, Internet Of Things, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Wireless Networks, Generative AI, Emerging Technologies, Generative AI Agents, Network Performance Management, Digital Communications, Network Architecture, Computer Networking, Network Protocols, Communication, System Design and Implementation
Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Lead Generation, Marketing Automation, HubSpot CRM, Prompt Engineering, Email Automation, ChatGPT, Dashboard, MarTech, Marketing Strategies, Marketing Analytics, Customer Relationship Management (CRM) Software, Customer Engagement, Data-Driven Decision-Making
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: User Interface and User Experience (UI/UX) Design, Cascading Style Sheets (CSS), HTML and CSS, GitHub, Microsoft Visual Studio, Application Deployment, Web Design and Development, Integrated Development Environments, Web Development Tools
Intermediate · Guided Project · Less Than 2 Hours

MathWorks
Skills you'll gain: Model Based Systems Engineering, Engineering Design Process, Simulation and Simulation Software, Robotics, Mathematical Modeling, Engineering Analysis, Engineering Software, Engineering, Mechanical Engineering, Control Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Model View Controller, ASP.NET, OAuth, Web Development, Application Programming Interface (API), .NET Framework, Web Services, Authentications, Unit Testing, Back-End Web Development, C# (Programming Language), Web Applications, Object-Relational Mapping, Application Security, Authorization (Computing), Operational Databases, Data Access, Cloud Computing, Computer Programming
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Risk Management, Project Risk Management, Risk Analysis, Risk Mitigation, Communication Planning, Stakeholder Management, Project Management, Conflict Management, Stakeholder Engagement, Organizational Structure
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management Framework, Risk Management, IT Management, Risk Appetite, Business Risk Management, Operational Risk, Enterprise Risk Management (ERM), Compliance Management, Risk Analysis, Governance, Regulatory Requirements, Organizational Structure, Accountability
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Vulnerability Assessments, Hardware Architecture, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, Authentications, Network Monitoring, TCP/IP, Network Analysis
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Organizational Change, Innovation, Change Management, New Product Development, Organizational Strategy, Cross-Functional Team Leadership, Team Leadership, Organizational Effectiveness, Product Lifecycle Management, Organizational Structure, Emerging Technologies, Business Strategy
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Generative AI Agents, LangChain, AI Workflows, LLM Application, Agentic systems, Development Environment, Model Evaluation, OpenAI, Artificial Intelligence, Scalability, Applied Machine Learning, Performance Tuning, Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Pinterest, Canva (Software), Content Creation, Social Media Content, Storytelling, Photo/Video Production and Technology, Graphic Design, Digital Publishing, Driving engagement, Marketing
Beginner · Guided Project · Less Than 2 Hours