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 Colorado System
Skills you'll gain: Conflict Management, Intercultural Competence, Team Building, Diversity and Inclusion, Workplace inclusivity, Cultural Diversity, Team Leadership, Collaboration, Cultural Sensitivity, Verbal Communication Skills, Active Listening, Communication, Empathy, Leadership, Non-Verbal Communication, Safety Culture, Relationship Building, Adaptability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Product Testing, Laboratory Testing, Structural Engineering, Construction Inspection, Process Validation, Construction Engineering, Construction, Civil Engineering, Engineering Analysis, Simulation and Simulation Software, Safety Standards
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Responsive Web Design, Video Game Development, Version Control, Mobile Development, Android Development, 3D Assets, User Interface (UI), C# (Programming Language), Git (Version Control System), Animation and Game Design, AI Workflows, Scripting
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Relational Databases, Databases, Data Visualization Software, Web Scraping, Data Science, Scatter Plots, Data Manipulation, SQL, Data Processing, JSON, Application Programming Interface (API), Data Import/Export, Python Programming, Extensible Markup Language (XML), Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Role-Based Access Control (RBAC), TypeScript, Authentications, Server Side, Jest (JavaScript Testing Framework), Back-End Web Development, MongoDB, Object-Relational Mapping, Web Development Tools, Web Applications, Unit Testing, Web Development, Database Management, Secure Coding, Application Programming Interface (API), Middleware, NoSQL, Javascript and jQuery, Development Environment
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Web Design and Development, Front-End Web Development, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Scripting, Javascript
Beginner · Guided Project · Less Than 2 Hours

Google - Spectrum Sharing
Skills you'll gain: Software Installation, Wireless Networks, General Networking, Infrastructure Security, Interoperability, Communication Systems, Telecommunications, System Configuration, Network Planning And Design
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Web Applications, Web Development, JavaScript Frameworks, Database Management, Application Programming Interface (API), Software Architecture, NoSQL, Web Servers, Authentications, Application Security, Middleware, Performance Tuning, Authorization (Computing), Scalability
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Business Analysis, Emerging Technologies, Solution Design, Entrepreneurship, Market Opportunities, Case Studies, Market Analysis, Competitive Analysis, Business Modeling, Proposal Development, Value Propositions, Target Audience, Presentations
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Responsible AI, AI Security, LLM Application, Threat Detection, Endpoint Detection and Response, Threat Modeling, Cyber Threat Intelligence, Cyber Threat Hunting, Generative AI Agents, Agentic Workflows, Agentic systems, Cyber Governance, Incident Response, Cyber Security Strategy, Cyber Operations, Data Ethics, Cybersecurity, Cyber Security Assessment, Risk Mitigation, Technology Strategies
Intermediate · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Server Side, Restful API, Ajax, Node.JS, Web Applications, Web Servers, Web Development, Model View Controller, Javascript, JavaScript Frameworks, PHP (Scripting Language), Authentications, JSON, Hypertext Markup Language (HTML), Software Architecture, Application Development, Real Time Data, Data Storage
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Cloud Computing Architecture, Cloud Infrastructure, Cloud Deployment, Cloud Security, Cloud Computing, Incident Response, Cloud Management, Cloud Services, Disaster Recovery, Capacity Management, Virtual Networking, IT Automation, Network Troubleshooting, Virtual Machines, Virtualization, Application Deployment, Application Security, System Monitoring, Security Controls, Capacity Planning
Intermediate · Specialization · 1 - 3 Months