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: Node.JS, Restful API, Database Design, Database Development, Database Application, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Relational Databases, Authentications, Server Side, Application Programming Interface (API), Cloud Development, Cloud Deployment, Middleware, Scalability, Javascript
★ 4.5 (55) · Intermediate · Course · 1 - 3 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: Business Modeling, Social Impact, Sustainable Development, Design Thinking, Ideation, Innovation, Entrepreneurship, Project Design, New Business Development, Case Studies, Social Sciences
★ 4.9 (1.1K) · Beginner · Course · 1 - 4 Weeks

Fortinet, Inc.
Skills you'll gain: Firewall, Network Support, Virtual Private Networks (VPN), Network Troubleshooting, Network Routing, Network Security, Routing Protocols, Intrusion Detection and Prevention, Authentications, Network Monitoring, Event Monitoring, Lightweight Directory Access Protocols, Technical Support and Services, Remote Access Systems, Network Administration, Security Engineering, Application Security, Cybersecurity, Computer Security, Cyber Security Strategy
★ 4.6 (162) · Intermediate · Specialization · 3 - 6 Months

University of Lausanne
Skills you'll gain: Criminal Investigation and Forensics, Statistical Reporting, Court Systems, Legal Proceedings, Laboratory Reports, Scientific Methods, Investigation, Statistical Analysis, Probability & Statistics, Research, Technical Communication, Case Studies, Molecular Biology, Verification And Validation
★ 4.9 (533) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Security, Data Migration, Data Governance, Extract, Transform, Load, Cloud Storage, Data Architecture, Data Management, Data Integration, Data Storage, Enterprise Architecture, Data Quality, Data Modeling, Incident Response, Security Controls, Information Privacy, Data Infrastructure, Data Storage Technologies, Security Strategy, Database Architecture and Administration, Threat Management
★ 4.4 (92) · Advanced · Specialization · 1 - 3 Months

Peking University
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, C (Programming Language), Code Reusability, Algorithms, Data Structures
★ 4.7 (813) · Mixed · Course · 1 - 3 Months
University of Pennsylvania
Skills you'll gain: Influencing, Relationship Building, Professional Networking, Persuasive Communication, Organizational Effectiveness, Organizational Structure, Relationship Management, Business Ethics, Ethical Standards And Conduct, Decision Making, Strategic Partnership, Social Network Analysis, Proactivity, General Networking, Self-Awareness
★ 4.7 (346) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Sustainable Business, Global Marketing, Virtual Teams, Business Ethics, Diversity Marketing, Corporate Sustainability, Intercultural Competence, Sustainable Development, Cultural Sensitivity, Cultural Diversity, Environmental Social And Corporate Governance (ESG), Workplace inclusivity, Consumer Behaviour, Ethical Standards And Conduct, Environmental Issue, Market Analysis, Branding, Solution Design, Culture, Business Strategies
★ 4.8 (570) · Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Embedded Software, Real-Time Operating Systems, Software Development, Software Design, Software Architecture, Embedded Systems, Configuration Management, Development Environment, Middleware, Systems Architecture, Application Development, Extensible Markup Language (XML), System Configuration, Application Frameworks
★ 4.6 (342) · Beginner · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: Architectural Drawing, Engineering Drawings, SketchUp (3D Modeling Software), AutoCAD, Autodesk Revit, Building Information Modeling, Drafting and Engineering Design, Engineering Management, Technical Drawing, 3D Modeling, Engineering Design Process, Autodesk, Engineering Documentation, Structural Engineering, Diagram Design, Civil and Architectural Engineering, Visualization (Computer Graphics), Construction Estimating, Engineering Practices, Computer-Aided Design
★ 4.7 (361) · Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Back-End Web Development, Program Development, Algorithms, Programming Principles, Debugging, Computational Thinking, Diagram Design, C# (Programming Language), Code Reusability, Version Control, GitHub, Git (Version Control System), Computational Logic, Microsoft Copilot
★ 4.5 (135) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Dashboard Creation, Dashboard, Pivot Tables And Charts, Microsoft Excel, Data Transformation, Excel Formulas, Data Management, Data Analysis, Data Validation, Reconciliation, Problem Solving
★ 4.7 (576) · Intermediate · Course · 1 - 3 Months