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.

Board Infinity
Skills you'll gain: Usability Testing, Usability, Human Centered Design, Software Testing, User Experience Design, Web Content Accessibility Guidelines, User Experience, Risk Management Framework
Advanced · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: Model View Controller, Debugging, Responsive Web Design, User Interface (UI), HTML and CSS, Web Design and Development, UI/UX Strategy, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Design and Product, Web Design, Cascading Style Sheets (CSS), Application Frameworks, Hypertext Markup Language (HTML), Program Development, Generative AI
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Scala Programming, Other Programming Languages, Computer Programming, Programming Principles, Program Development, Theoretical Computer Science, Computational Logic
Mixed · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Test Script Development, Test Automation, System Testing, Test Tools, Object Oriented Programming (OOP), Continuous Delivery, Test Data, Java Programming, Java, Test Case, Software Testing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Flask (Web Framework), User Provisioning, User Accounts, Web Development, Web Applications, Object-Relational Mapping, HTML and CSS, Authentications, Cascading Style Sheets (CSS), Database Management, Database Application
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Agentic systems, Model Context Protocol, Vector Databases, Gemini, Generative AI Agents, Google Gemini, Retrieval-Augmented Generation, Artificial Intelligence, Generative AI, Embeddings, MongoDB, Node.JS, API Design, TypeScript, PostgreSQL, Web Applications, Systems Architecture, Database Management, Debugging, Machine Learning
Beginner · Specialization · 1 - 3 Months

O.P. Jindal Global University
Skills you'll gain: Model Evaluation, Supervised Learning, Model Training, Scikit Learn (Machine Learning Library), Tensorflow, Model Deployment, Applied Machine Learning, Artificial Neural Networks, Python Programming, NumPy, Machine Learning Algorithms, Matplotlib, Deep Learning, Image Analysis, Machine Learning, Model Optimization, Embeddings, Pandas (Python Package), Natural Language Processing
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Front-End Web Development, Web Design and Development, Hypertext Markup Language (HTML), Web Design, Web Development, Cloud Deployment, User Interface (UI), User Interface (UI) Design, Application Deployment, Typography, Cloud Hosting
Intermediate · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Generative Engine Optimization (GEO), Large Language Modeling, Search Engine Optimization, Google Gemini, LLM Application, Content Optimization, Anthropic Claude, ChatGPT, Influencing, Artificial Intelligence, Content Strategy, Brand Awareness, Branding
Mixed · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Scalability, Authentications, JSON, Authorization (Computing), Web Development Tools, Web Applications, Web Development, Server Side, Secure Coding, JavaScript Frameworks, Back-End Web Development, Application Frameworks, Javascript, Restful API, Development Environment, Event-Driven Programming, Operating Systems, Email Automation, Integrated Development Environments
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Timelines, Design, Graphic Design, File Management, Collaborative Software, Data Management
Beginner · Guided Project · Less Than 2 Hours

Macquarie University
Skills you'll gain: Data Security, Threat Detection, Cybersecurity, Security Awareness, Cyber Attacks, Cyber Risk, Data Management, Security Management, Encryption, Security Software, Data Sharing, Security Strategy, Network Security, Data Access, Risk Modeling, Statistical Methods
Beginner · Course · 1 - 3 Months