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.

Microsoft
Skills you'll gain: Unsupervised Learning, Fine-tuning, Model Deployment, Generative AI, Large Language Modeling, Data Management, Generative Model Architectures, Natural Language Processing, MLOps (Machine Learning Operations), Supervised Learning, Microsoft Azure, Deep Learning, Artificial Intelligence and Machine Learning (AI/ML), Generative Adversarial Networks (GANs), Infrastructure Architecture, LLM Application, Responsible AI, Data Infrastructure, Data Preprocessing, Model Optimization
★ 4.6 (356) · Intermediate · Professional Certificate · 3 - 6 Months

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development Tools, Browser Compatibility, Application Deployment, Front-End Web Development, Web Development, Computer Programming Tools, Animations, Development Environment, Software Development Tools, UI Components, Interactive Design, Javascript, Frontend Performance
★ 4.6 (237) · Beginner · Specialization · 3 - 6 Months

Meta
Skills you'll gain: Restful API, API Testing, Django (Web Framework), API Design, Software Documentation, Application Programming Interface (API), Authentications, Authorization (Computing), Debugging, JSON, Performance Tuning, Data Validation, Extensible Markup Language (XML)
★ 4.4 (377) · Intermediate · Course · 1 - 4 Weeks

ESSEC Business School
Skills you'll gain: Hospitality Management, Hotels and Accommodations, Hospitality, Marketing Channel, Business Modeling, Revenue Management, Direct Selling, Wholesaling, Direct Marketing, Travel Arrangements, Booking (Sales), E-Commerce, Online Advertising, Web Analytics, Pay Per Click Advertising, Strategic Partnership, Branding, Marketing Strategies, Web Design and Development, Search Engine Marketing
★ 4.7 (1.5K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, Workflow Management, No-Code Development, Self Service Technologies, Application Deployment, IBM Cloud, Generative AI Agents, LLM Application, Generative AI, Customer Service, Context Management, Operational Efficiency, AI Integrations, Customer experience improvement, WordPress
★ 4.7 (3.8K) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Windows Servers, Authorization (Computing), Microsoft Windows, Authentications, Operating System Administration, User Accounts, Group Policy, User Provisioning, Microsoft Servers, Security Controls, Enterprise Security, Active Directory, Identity and Access Management, Software Installation, Role-Based Access Control (RBAC), Server Administration, Encryption, Network Planning And Design, Network Performance Management, Computer Networking
★ 4.7 (676) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Front-End Web Development, Git (Version Control System), Web Content Accessibility Guidelines, User Interface and User Experience (UI/UX) Design, HTML and CSS, React.js, Usability, Software Technical Review, Web Applications, User Experience Design, Semantic Web, Data Validation, Javascript
★ 4.6 (457) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: User Interface (UI), UI/UX Research, Prototyping, User Research, User Interface and User Experience (UI/UX) Design, AI Personalization, UI/UX Strategy, User Experience, User Flows, AI powered creativity, Design Research, User Interface (UI) Design, Usability, Figma (Design Software), Web Content Accessibility Guidelines, Data Storytelling, Journey Mapping, Generative AI, User Experience Design, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.4 (192) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Relational Databases, Database Management Systems, SQL, Database Design, Databases, Database Administration, MySQL, NoSQL, Query Languages
★ 4.6 (679) · Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Graphing, Combinatorics, Network Analysis, Algorithms, Mathematical Theory & Analysis, Theoretical Computer Science, Traffic Flow Optimization, Program Development
★ 4.5 (1.1K) · Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Data Visualization, Data Visualization Software, Data Presentation, Dashboard, Tableau Software, Plot (Graphics), Dashboard Creation, Data Mapping, Graphing
★ 4.5 (1.4K) · Mixed · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Building Design, Sustainable Technologies, Environmental Issue, Sustainable Development, Energy and Utilities, Sustainable Design, Sustainable Architecture, Sustainable Engineering, Sustainability Standards, Materials science, Workforce Planning, Gap Analysis, Climate Change Mitigation, Emerging Technologies, Semiconductors
★ 4.7 (228) · Beginner · Course · 1 - 3 Months