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: NoSQL, Database Administration, Data Warehousing, SQL, Data Pipelines, Apache Hadoop, Database Architecture and Administration, Database Design, Database Management, Relational Databases, Data Security, Linux Commands, Data Migration, Data Governance, MongoDB, Apache Spark, Apache Kafka, Database Development, Extract, Transform, Load, Data Architecture
★ 4.6 (7.5K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: User Research, Cascading Style Sheets (CSS), User Experience Design, User Experience, Design Research, Linux Commands, Unix, Debugging, User Interface (UI), Software Visualization, Event-Driven Programming, Web Content Accessibility Guidelines, Pseudocode, Hypertext Markup Language (HTML), User Interface and User Experience (UI/UX) Design, Javascript, UI Components, Unit Testing, JavaScript Frameworks, Code Reusability
★ 4.7 (24K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Django (Web Framework), Full-Stack Web Development, Version Control, Restful API, Data Structures, Unix Commands, Bootstrap (Front-End Framework), Git (Version Control System), API Testing, Back-End Web Development, GitHub, Relational Databases, Front-End Web Development, Object Oriented Programming (OOP), Database Management Systems, Code Reusability, SQL, Python Programming, Computer Programming, Cloud Hosting
★ 4.6 (9.9K) · Beginner · Professional Certificate · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Financial Statements, Operations Management, Customer Analysis, Operational Efficiency, Financial Statement Analysis, Return On Investment, Accrual Accounting, Human Capital, Process Analysis, Branding, Marketing Strategies, Financial Accounting, Marketing, Process Management, People Management, Capital Budgeting, Finance, Peer Review, Project Design, Corporate Finance
★ 4.7 (26K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cloud-Native Computing, Infrastructure as Code (IaC), Cloud Security, Cloud Storage, Hybrid Cloud Computing, Systems Analysis, Process Improvement, Cloud Engineering, Cloud Computing, Cloud Solutions, Cloud Development, Requirements Analysis, Data Modeling, Multi-Cloud, DevOps, Docker (Software), Solution Design, Microservices, Infrastructure As A Service (IaaS), Information Technology
★ 4.6 (7.8K) · Intermediate · Professional Certificate · 3 - 6 Months
LearnQuest
Skills you'll gain: Java Programming, Spring Framework, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Java Platform Enterprise Edition (J2EE), Programming Principles, Software Design, Computer Programming, Application Frameworks, Data Structures, Software Installation, Virtual Machines, Code Reusability, Web Development, Package and Software Management, Memory Management, Computational Logic, Development Environment
★ 4.6 (2.8K) · Intermediate · Specialization · 3 - 6 Months
Arizona State University
Skills you'll gain: Digital pedagogy, Language Competency, Vocabulary, Design Elements And Principles, English Language, Design Strategies, Verbal Communication Skills, Language Learning, Public Speaking, Critical Thinking, Communication
★ 4.9 (20K) · Beginner · Specialization · 3 - 6 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

Vanderbilt University
Skills you'll gain: Claude Code, Prompt Engineering, ChatGPT, Generative AI Agents, Prompt Patterns, Anthropic Claude, Token Optimization, Prompt Engineering Tools, LLM Application, Multimodal Prompts, AI literacy, OpenAI, Agentic Workflows, Debugging, TypeScript, OpenAI API, AI Enablement, AI Orchestration, AI Workflows, Generative AI
★ 4.8 (7.9K) · Beginner · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: Database Design, Relational Databases, SQL, Databases, Data Visualization Software, Web Scraping, Data Modeling, Object Oriented Programming (OOP), Data Processing, Geographic Information Systems, Python Programming, Application Programming Interface (API)
★ 4.8 (22K) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Object Oriented Design, Version Control, User Interface (UI) Design, Web Design, Web Design and Development, Web Content Accessibility Guidelines, Design Software, Adobe XD, Responsive Web Design, .NET Framework, Microsoft Visual Studio, User Experience, Authorization (Computing), AI Integrations, Application Security, Computational Thinking, Web Components, Pseudocode, Microsoft Development Tools, Javascript
★ 4.6 (249) · Beginner · Professional Certificate · 3 - 6 Months

Hebrew University of Jerusalem
Skills you'll gain: Computer Architecture, Hardware Architecture, Computer Engineering, Computer Hardware, Computer Science, Computer Systems, Microarchitecture, Computational Logic, System Programming, Computer Programming, System Design and Implementation, Technical Design, Memory Management, Program Development, Verification And Validation
★ 4.9 (3.7K) · Mixed · Course · 1 - 3 Months