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: Unity Engine, Video Game Development, C# (Programming Language), Game Design, Object Oriented Design, Object Oriented Programming (OOP), Software Design, Programming Principles, Application Development, Scripting
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: jQuery, HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design and Development, Javascript and jQuery, Bootstrap (Front-End Framework), Web Design, Web Development, Javascript, Web Applications, Cascading Style Sheets (CSS), Interactive Design, Programming Principles, Development Environment
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Prompt Engineering, Responsible AI, Generative AI Agents, Google Gemini, AI Security, Generative AI, Gemini, Google Workspace, AI Enablement, Google Cloud Platform, Large Language Modeling, AI Product Strategy, AI Workflows, Tool Calling, Unstructured Data, Cloud Management, Cloud Infrastructure, Artificial Intelligence, Cloud Computing, Collaboration
Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: OSI Models, Network Security, Network Protocols, Network Performance Management, Network Architecture, Network Monitoring, Role-Based Access Control (RBAC), Network Troubleshooting, Network Administration, Computer Networking, TCP/IP, Network Planning And Design, Cybersecurity, Routing Protocols, Firewall, Network Routing, Network Analysis, IT Infrastructure, Cloud Computing, Automation
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Vibrations, Test Engineering, Product Testing, Performance Testing, Human Factors, Engineering Analysis, Digital Signal Processing, Laboratory Testing, Scientific Visualization, Root Cause Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Browser Compatibility, Performance Testing, Security Testing, Integration Testing, System Testing, API Testing, Software Testing, User Acceptance Testing (UAT), Acceptance Testing, Selenium (Software), Test Tools, Test Automation, Responsive Web Design, Vulnerability Scanning, Web Applications, CI/CD, Docker (Software), User Interface (UI), Python Programming
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Node.JS, React Redux, Restful API, Database Design, Ajax, Database Application, Databases, Full-Stack Web Development, Server Side, NoSQL, Back-End Web Development, Front-End Web Development, Javascript, React.js, Performance Tuning, API Design, Data Structures, MongoDB, Debugging, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months

Alex Genadinik
Skills you'll gain: Keyword Research, Web Analytics and SEO, Blogs, Search Engine Optimization, Copywriting, Google Analytics, Google Gemini, Search Engine Marketing, Web Content, Anthropic Claude, Large Language Modeling, Generative AI, Web Analytics, ChatGPT, Prompt Engineering, Content Creation, Google Ads, Digital Marketing, Marketing, Marketing Planning
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Responsive Web Design, JSON, User Interface (UI) Design, Color Theory, Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Restful API, Web Content Accessibility Guidelines, Event-Driven Programming, User Interface (UI), Web Design, Typography, Web Applications, Application Programming Interface (API), React.js, Web Design and Development, Web Development Tools, Javascript, Web Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Variance Analysis, Dashboard, Key Performance Indicators (KPIs), Power BI, Performance Analysis, Performance Measurement, Web Analytics and SEO, Performance Reporting, Google Analytics, Performance Metric, Business Metrics, Analysis, Statistical Analysis, Business Intelligence, Trend Analysis, AI Enablement, Search Engine Optimization, Management Reporting, Data-Driven Decision-Making, Data Integration
Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Proposal Writing, Proposal Development, Sales Process, Enterprise Sales, Business Writing, B2B Sales, Sales Presentation, Business Marketing, Specialized Sales, Presentations, Company, Product, and Service Knowledge, Target Audience
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Sampling (Statistics), SAS (Software), Data Integration, Statistical Programming, Statistical Methods, Data Manipulation, Data Processing, Data Management, SQL, Data Transformation, Data Governance, Transaction Processing, Version Control, Data Structures, File Management
Intermediate · Course · 1 - 3 Months