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: Microsoft Azure, Authorization (Computing), Azure Active Directory, Cloud Infrastructure, Authentications, Cloud Security, Event Monitoring, Role-Based Access Control (RBAC), Infrastructure Security, Identity and Access Management, System Monitoring, Cloud Computing Architecture, Cloud Management, Active Directory, Network Monitoring, Data Governance, Cloud Applications, Personally Identifiable Information, Security Management, Information Management
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Test Case, Test Script Development, Test Planning, Test Automation, Test Engineering, Acceptance Testing, Test Tools, White-Box Testing, CI/CD, Software Quality Assurance, Test Data, Regression Testing, Quality Assurance
Beginner · Course · 1 - 4 Weeks

California Institute of the Arts
Skills you'll gain: Information Architecture, Persona (User Experience), UI/UX Strategy, Web Design, User Experience, Wireframing, User Research, User Centered Design, Mockups, Usability Testing, Requirements Analysis, Target Audience, Agile Methodology
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Newsletters, Email Marketing, Project Design, Content Creation, Scheduling, Test Tools, User Accounts, Marketing, Communication
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Unreal Engine, Virtual Environment, 3D Assets, Game Design, Visualization (Computer Graphics), Computer Graphics, Animation and Game Design, Storytelling, Layout Design, Design Elements And Principles
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Computer Graphics, Application Development, Visualization (Computer Graphics), Software Design, C++ (Programming Language), Microsoft Windows, Software Architecture, Application Lifecycle Management, Context Management, System Configuration, Debugging
Mixed · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Electrical Systems, Electrical Wiring, HVAC, Building Design, Construction Inspection, Basic Electrical Systems, Engineering Calculations, Architectural Design, System Requirements, Mechanical Design, Building Codes, Structural Analysis, Cost Estimation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Workflows, OpenAI API, LLM Application, OpenAI, Model Context Protocol, Generative AI Agents, Agentic systems, Tool Calling, Prompt Engineering, ChatGPT, Artificial Intelligence, Application Programming Interface (API), User Interface (UI), Context Management, Large Language Modeling, Python Programming, Development Environment, Application Deployment, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Interface (UI), UI Components, Software Design, Maintainability, Application Development, Microsoft Windows, Object Oriented Programming (OOP), Python Programming, Data Persistence
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: User Research, Prototyping, Wireframing, Human Centered Design, Miro AI, User Interface and User Experience (UI/UX) Design, User Flows, Design, User Interface (UI), Design Specifications, Interactive Design, Persona Development, Design Software, User Interface (UI) Design, Ideation, Animations
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: Apache Hadoop, Big Data, Application Deployment, Social Network Analysis, Data Processing, Distributed Computing, Java, Text Mining, Graph Theory, File Systems
Mixed · Course · 1 - 3 Months

Skills you'll gain: Design, Graphic and Visual Design, Photography, Photo Editing, Photo/Video Production and Technology
Beginner · Course · 1 - 4 Weeks