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.

EDUCBA
Skills you'll gain: Data Lakes, Microsoft Azure, Stored Procedure, Data Architecture, Performance Tuning, Data Management, Query Languages, Data Manipulation, Scripting, SQL, Data Processing, Windows PowerShell, Microsoft Visual Studio, Command-Line Interface, Heat Maps
Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Amazon Bedrock, Responsible AI, Generative AI, AI Security, Artificial Intelligence, Large Language Modeling, Amazon Web Services, Embeddings, Retrieval-Augmented Generation, Image Analysis
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Culture Transformation, Innovation, Organizational Change, Business Transformation, Strategic Leadership, Strategic Planning, Business Communication, Change Management, Organizational Leadership, Organizational Structure, Business Planning, Competitive Analysis, Business Writing, Leadership, Business Analysis, Business Strategy, Presentations, Financial Analysis, Project Planning, Financial Planning
Build toward a degree
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: JSON, UI Components, Application Deployment, Web Frameworks, Web Design and Development, Front-End Web Development, Information Architecture, Web Development Tools, Full-Stack Web Development, Web Development, HTML and CSS, Hypertext Markup Language (HTML), Content Management, Cascading Style Sheets (CSS), File Systems, Javascript
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Test Tools, Test Automation, Test Planning, Scripting, Test Script Development, Continuous Integration, CI/CD, Software Testing, Regression Testing, Software Technical Review, Test Case, Continuous Delivery, Maintainability, Automation, Software Quality (SQA/SQC)
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Development Environment, Scalability, Performance Tuning
Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Video Game Development, Game Design, Culture, Education and Training, Cultural Diversity, Economics, Policy, and Social Studies, Diversity Awareness, Social Impact, Electronic Media, Community Development, Emerging Technologies, Content Creation, Timelines
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Public Key Infrastructure, Cloud Security, Hardening, Security Engineering, Infrastructure Security, Application Security, Information Systems Security, Network Security, Cyber Security Assessment, System Configuration, Cryptography, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Interface (UI), Design Thinking, UI Components, Software Design, Usability, Event-Driven Programming, Maintainability, Integrated Development Environments, User Interface (UI) Design, Payment Systems, Interactive Design, Application Design, MySQL, Jupyter, Database Application, Development Environment, Application Development, Python Programming, Transaction Processing, Microsoft Windows
Beginner · Specialization · 1 - 3 Months

Pearson
Skills you'll gain: AI Security, Retrieval-Augmented Generation, AI Orchestration, Responsible AI, LangChain, Threat Modeling, Generative AI, Vector Databases, Embeddings, Application Security, Secure Coding, Large Language Modeling, Open Web Application Security Project (OWASP), Threat Management, Security Testing, Security Controls, Prompt Engineering, MITRE ATT&CK Framework
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: 3D Assets, 3D Modeling, Unreal Engine, Virtual Environment, Computer Graphics, Augmented and Virtual Reality (AR/VR), Video Game Development, Game Design, Computer Graphic Techniques, Animation and Game Design, Design Elements And Principles, File Management, Editing, Graphics Software, User Interface (UI), Data Import/Export
Beginner · Course · 3 - 6 Months

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