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.

Siemens
Skills you'll gain: Computer-Aided Design, Drafting and Engineering Design, Design Software, Data Import/Export, Engineering Drawings, Assembly Drawing, Mechanical Drawings, Technical Drawing, 3D Modeling, 3D Assets
★ 4.7 (79) · Beginner · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Innovation, Ideation, Creativity, Customer experience improvement, New Product Development, Product Development, Research and Design, Process Development, Brand Management, Brand Strategy, Sustainable Business, Process Improvement, Branding, Business Strategies, Business Modeling, Design, Performance Improvement, Corporate Sustainability
★ 4.8 (826) · Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Epidemiology, Graph Theory, Infectious Diseases, Program Development, Molecular Biology, Molecular, Cellular, and Microbiology, Computational Thinking, Algorithms, Software Development
★ 4.5 (351) · Advanced · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Social Impact, Design Thinking, Performance Measurement, Innovation, Entrepreneurship, Business Modeling, Strategic Thinking, Ideation, Program Evaluation, Organizational Structure, Needs Assessment, Growth Strategies, Competitive Analysis, Market Analysis, Product Testing
★ 4.8 (1.5K) · Beginner · Course · 1 - 4 Weeks
Indian Institute for Human Settlements
Skills you'll gain: Sustainable Architecture, HVAC, Energy and Utilities, Building Design, Water Sustainability, Architectural Engineering, Climate Change Adaptation, Sustainable Design, Water Resource Management, Thermal Management, Architecture and Construction, Sustainable Technologies, Resilience, Climate Change Mitigation, Sustainable Engineering, Cost Estimation, Engineering Calculations
★ 4.5 (17) · Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Microsoft SQL Servers, C# (Programming Language), Web Services, Database Management, Database Development, JSON, Back-End Web Development, SQL, Database Design, Server Side, .NET Framework, Object Oriented Programming (OOP), Application Programming Interface (API), API Design, Database Architecture and Administration, Programming Principles
★ 4.1 (14) · Intermediate · Course · 1 - 4 Weeks
University of Pennsylvania
Skills you'll gain: Influencing, Relationship Building, Professional Networking, Persuasive Communication, Leadership, Organizational Effectiveness, Organizational Structure, Relationship Management, Business Ethics, Ethical Standards And Conduct, Decision Making, Social Network Analysis, Proactivity, General Networking, Self-Awareness
★ 4.7 (344) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java, Java Programming, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Computer Programming, Android Development, Application Development, Programming Principles, Program Development, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: MongoDB, Restful API, API Design, NoSQL, Database Development, Node.JS, Query Languages, Operational Databases, Database Systems, Application Programming Interface (API), Database Management, Distributed Computing, Data Store, Database Design, Database Architecture and Administration, Performance Tuning, Object-Relational Mapping, Scalability, Data Modeling, Data Validation
★ 4.7 (64) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Azure, Serverless Computing, Cloud Development, Microsoft Power Automate/Flow, Event-Driven Programming, Cloud-Based Integration, Business Process Automation, Application Programming Interface (API), Webhook Security, GitHub
★ 4.4 (134) · Intermediate · Course · 1 - 3 Months
Skills you'll gain: Blockchain, Digital Assets, FinTech, Agentic systems, Financial Inclusion, Business Modeling, Financial Systems, Asset Management, Payment Systems, Emerging Technologies, Business Transformation, Distributed Computing, Transaction Processing, Cryptographic Protocols, Identity and Access Management, Contract Management, Cost Reduction, Security Controls
★ 4.6 (382) · Beginner · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: System Design and Implementation, Application Specific Integrated Circuits, Systems Design, Computational Logic, Computer Architecture, Computer Systems, Hardware Architecture, Design Strategies, Algorithms, Other Programming Languages
★ 4.7 (249) · Mixed · Course · 1 - 3 Months