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.

Universitat Politècnica de València
Skills you'll gain: Web Content Accessibility Guidelines, Disabilities, Adaptive Equipment, Mobile Development, Hypertext Markup Language (HTML), Web Design, Education Software and Technology, Usability, User Interface (UI), Digital Design, Android (Operating System), Apple iOS, Diversity Equity and Inclusion Initiatives
Beginner · Course · 1 - 3 Months

Skills you'll gain: Keyword Research, Registration, Professional Development, User Accounts, Detail Oriented, Organizational Skills, Computer Literacy
Beginner · Guided Project · Less Than 2 Hours

Lecturio
Skills you'll gain: Constructive Feedback, Patient Communication, Active Listening, Advocacy, Rapport Building, Conflict Management, Teamwork, Interpersonal Communications, Communication Strategies, Collaboration, Professionalism, Emotional Intelligence, Nursing and Patient Care, Diversity Awareness, Empathy, Communication, Workplace inclusivity
Intermediate · Course · 1 - 4 Weeks

The Open University
Skills you'll gain: Sustainable Business, Sustainable Development, Innovation, Environmental Social And Corporate Governance (ESG), Stakeholder Engagement, Business Continuity, Environmental Issue, Social Impact, Business Ethics, Business Architecture, Systems Thinking, Business Modeling, Complex Problem Solving
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Photoshop, Layout Design, Photo Editing, Graphic and Visual Design, Creative Design, Typography, Color Theory
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Responsive Web Design, Email Automation, Order Management, Data Validation, User Interface (UI) Design, Search Engine Optimization, Web Applications, JavaScript Frameworks, Authentications, User Interface (UI), React.js, Payment Processing, E-Commerce, PostgreSQL, Dashboard, Database Development, Object-Relational Mapping, Product Improvement, Real Time Data
Intermediate · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Product Management, Cross-Functional Collaboration, Product Roadmaps, Product Strategy, Product Lifecycle Management, Product Development, Analysis, Stakeholder Management, Decision Making, Innovation, Market Analysis, Agile Methodology, Key Performance Indicators (KPIs), Prioritization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Application Deployment, Image Analysis, AI Enablement, Google Cloud Platform, Cloud Deployment, Computer Vision, Anomaly Detection, AI Workflows
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Relational Databases, API Design, ASP.NET, Object-Relational Mapping, Databases, Query Languages, Back-End Web Development, Application Programming Interface (API), Restful API, Code Review, Database Design, SQL, Data Access, Data Manipulation, C# (Programming Language)
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Server Side, Restful API, API Design, Database Management, Back-End Web Development, Databases, Database Systems, Node.JS, Application Programming Interface (API), Full-Stack Web Development, Authentications, Web Applications, JavaScript Frameworks, Web Development, Web Servers, Authorization (Computing), NoSQL, MongoDB, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Interactive Design, Color Theory, User Interface (UI), Web Development
Beginner · Guided Project · Less Than 2 Hours