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.

Skills you'll gain: Restful API, API Design, API Testing, Spring Boot, Authentications, Test Automation, JSON, Application Programming Interface (API), Test Script Development, Application Deployment, Spring Framework, Object-Relational Mapping, Test Case, Software Quality Assurance, Business Logic, Back-End Web Development, Integration Testing, Software Engineering, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Power Electronics, Control Systems, Electronic Systems, Electrical Engineering, Simulations, Mathematical Modeling, Model Evaluation
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Responsible AI, Graph Theory, Machine Learning, Applied Machine Learning, Research, Model Evaluation, Social Sciences, Statistical Analysis, Amazon Web Services, R Programming, Tensorflow, Data Ethics, Artificial Intelligence and Machine Learning (AI/ML), Research Design, Sociology, Driving engagement, Machine Learning Methods, Behavioral Economics
Intermediate · Specialization · 3 - 6 Months

Skillshare
Skills you'll gain: AI Personalization, Business Process
Beginner · Specialization · 1 - 3 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, Sales Strategy, Marketing, Digital Marketing, Marketing Planning
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Application Design, Application Development, UI Components, Event-Driven Programming, Integrated Development Environments, Java Programming, User Interface (UI), Java, Software Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Canva (Software), Logo Design, Social Media, Content Creation, Target Audience, Graphic Design, Social Media Marketing, Social Media Strategy, Content Strategy, Goal Setting
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Ajax, Gherkin (Scripting Language), Test Tools, Test Script Development, Debugging, Integration Testing, Software Design Patterns, Test Data, Scripting, Web Development Tools, Data Structures, Automation, SQL, MySQL
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, ChatGPT, Blogs, Generative AI Agents, Content Creation, Copywriting, Editing, Customer Advocacy, Brand Management, Target Audience
Intermediate · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Public Policies, Policy Development, Policy Analysis, Political Sciences, Advocacy, Environmental Policy, Behavioral Economics, Public Administration, Program Evaluation, Ethical Standards And Conduct, Governance, Systems Thinking, Economics
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Predictive Modeling, Data Preprocessing, Django (Web Framework), Data Visualization, Model Evaluation, Machine Learning Methods, Feature Engineering, Programming Principles, Databases, Game Design, Development Environment, Data Science, Web Applications, Animation and Game Design, Application Frameworks, Scripting, Scripting Languages, Software Design Patterns, Functional Design, Data Validation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Virtual Machines, Virtualization and Virtual Machines, Cloud Development, Cloud Deployment, Application Deployment, Linux, Full-Stack Web Development, Web Applications, Node.JS, MongoDB
Intermediate · Course · 1 - 3 Months