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.

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, Network Engineering, Network Architecture, Scripting, Application Programming Interface (API), Data Modeling, General Networking, Network Planning And Design, Automation, Network Administration, Linux Commands, Python Programming, Network Protocols, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Access, Relational Databases, Object Oriented Programming (OOP), JUnit, Data Integrity, SQL, Java, Java Programming, Databases
Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Fire And Life Safety, Building Codes, Pump Stations, Blueprint Reading, Electrical Systems, Process Flow Diagrams, Construction, Safety Training, Hydraulics, Construction Inspection, Safety Assurance, Chemical Engineering, Building Services Engineering, Building Design, Facility Management and Maintenance, Hazard Analysis, Engineering Drawings, Safety Standards, System Requirements, Safety and Security
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Spring Boot, Database Design, Object-Relational Mapping, Database Application, Data Modeling, Application Development, Database Architecture and Administration, Requirements Analysis, Data Persistence
Beginner · Guided Project · Less Than 2 Hours

Pontificia Universidad Católica del Perú
Skills you'll gain: User Story, Human Computer Interaction, Software Development Life Cycle, Functional Requirement, Unified Modeling Language, User Experience Design, Requirements Analysis, Prototyping, Usability, User Experience, User Interface (UI) Design, User Requirements Documents, System Requirements, Interaction Design, User Centered Design, Human Factors, User Research, Software Design, Software Engineering, Systems Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, JSON, Test Automation, JUnit, Test Script Development, Restful API, Software Testing, Test Case, Integration Testing, Functional Testing
Beginner · Guided Project · Less Than 2 Hours

The World Bank Group
Skills you'll gain: Climate Change Adaptation, Climate Change Mitigation, Resilience, Sustainable Development, Environmental Issue, Environmental Policy, Scientific Methods, Cooperation, Environmental Science, Collaboration, Water Resource Management, Energy and Utilities
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Sanitation, Environmental Engineering, Water Resource Management, Sustainable Engineering, Sustainable Technologies, Public Health, Cost Estimation, Data Collection, Case Studies
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Public Speaking, Lecturing, Presentations, Storytelling, Communication, Verbal Communication Skills, Communication Strategies, Verbal Strategic Communication, Concision, Goal-Oriented, Planning
Beginner · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Business Process Modeling, Responsible AI, AI Product Strategy, Business Process, Digital Transformation, Business Process Management, Business Process Improvement, Process Design, Business Process Automation, Google Gemini, ChatGPT, Product Management, Generative AI, Sustainable Development, Generative AI Agents, Social Impact, Sustainability Reporting, Prompt Engineering, Data Strategy, Business Strategy
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Node.JS, Restful API, Database Design, Database Application, Databases, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Authentications, Server Side, Middleware, Scalability, Application Deployment, Web Applications, Web Development, Debugging, Javascript
Intermediate · Course · 1 - 3 Months

Universidade Estadual de Campinas
Skills you'll gain: Android Studio, Android Development, Mobile Development, Event-Driven Programming, User Interface (UI), Application Development, Java, Development Environment, User Interface and User Experience (UI/UX) Design, Extensible Markup Language (XML), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months