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: JUnit, Test Automation, Unit Testing, Java Programming, Java, Test Script Development, Verification And Validation, Test Tools, Software Testing, Test Execution Engine, Development Testing, Quality Assurance, Software Quality Assurance, System Testing, Application Development, Test Case, Data Validation, Application Design, Automation, Software Development
★ 4.9 (20) · Beginner · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Responsive Web Design, Usability, Object Oriented Design, Version Control, User Experience Design, Design Thinking, User Centered Design, Web Design and Development, Web Content Accessibility Guidelines, .NET Framework, Microsoft Visual Studio, Authorization (Computing), AI Integrations, Application Security, Computational Thinking, User Interface (UI) Design, Web Components, Pseudocode, Microsoft Development Tools, Javascript
★ 4.6 (283) · Beginner · Professional Certificate · 3 - 6 Months
Madecraft
Skills you'll gain: Object Oriented Programming (OOP), Python Programming, IT Automation, Programming Principles, Computer Programming, Jupyter, Data Structures, Code Reusability, Computational Thinking, Development Environment, Algorithms, Data Analysis
Beginner · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Program Development, Data Validation, Object Oriented Programming (OOP), Build Tools, Programming Principles, Object Oriented Design, Algorithms, Software Testing, Enterprise Modeling, Unit Testing, Data Structures, Data Modeling
★ 4.6 (178) · Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Data Structures, Java Programming, Java, Object Oriented Design, Software Design, Algorithms, Theoretical Computer Science, Code Reusability, Object Oriented Programming (OOP), Network Routing, Application Design, Application Development
★ 4.8 (1.2K) · Intermediate · Course · 1 - 3 Months
University of Toronto
Skills you'll gain: Functional Design, Programming Principles, Debugging, File I/O, Software Documentation, Python Programming, Computer Programming, Program Development, Technical Documentation, Integrated Development Environments, Data Structures
★ 4.7 (6.7K) · Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Microservices, Spring Boot, API Testing, Spring Framework, IntelliJ IDEA, Java Programming, Restful API, Object Oriented Programming (OOP), Java, Object Oriented Design, Application Programming Interface (API), Systems Architecture, Application Deployment, Software Architecture, API Design, Integrated Development Environments, Data Persistence, Scalability, Service Oriented Architecture, Web Applications
★ 4.3 (67) · Intermediate · Specialization · 1 - 3 Months

Meta
Skills you'll gain: React Native, iOS Development, Core Data (Software), Restful API, User Research, Version Control, GitHub, UI/UX Research, Usability Testing, Apple iOS, Jest (JavaScript Testing Framework), Git (Version Control System), Data Structures, Swift Programming, User Interface (UI), Apple Xcode, Unix Commands, Persona (User Experience), Mobile Development, Javascript
★ 4.6 (8.8K) · Beginner · Professional Certificate · 3 - 6 Months

Macquarie University
Skills you'll gain: Risk Management Framework, Persuasive Communication, Storytelling, Influencing, Governance, Governance Risk Management and Compliance, Risk Management, Change Management, Organizational Change, Communication, Conflict Management, Leadership, Enterprise Risk Management (ERM), Business Transformation, Risk Analysis, Negotiation, Operational Risk, Leadership and Management, Intercultural Competence, Stakeholder Management
★ 4.7 (4.8K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java, Java Programming, Microservices, Application Servers, Restful API, Web Services, Web Applications, Server Side, Ajax, Service Oriented Architecture, Simple Object Access Protocol (SOAP), JSON, Application Development, Object-Relational Mapping, Back-End Web Development, Event-Driven Programming, Enterprise Architecture, Data Persistence, Data Access
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Apache Maven, Software Development Life Cycle, Unified Modeling Language, Object Oriented Programming (OOP), Build Tools, CI/CD, Object Oriented Design, Cloud-Native Computing, Software Development Methodologies, Jenkins, Continuous Integration, Agile Methodology, Software Development Tools, Version Control, Software Design Patterns, Software Development, Test Driven Development (TDD), Software Versioning, Programming Principles, Software Design
★ 4.5 (196) · Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Web Development Tools, Javascript, Debugging, Web Content Accessibility Guidelines, Hypertext Markup Language (HTML), Web Design, Interactive Design, Event-Driven Programming, Web Design and Development, HTML and CSS, Web Development, Cascading Style Sheets (CSS), Data Structures
★ 4.7 (7.4K) · Beginner · Course · 1 - 4 Weeks