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: ASP.NET, Model View Controller, .NET Framework, Object-Relational Mapping, Database Management, Data Access, Full-Stack Web Development, Web Development, Web Applications, Database Development, Software Architecture, Software Design Patterns, Maintainability
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Prompt Engineering, Microsoft Copilot, Prompt Patterns, Power Platform Architecture & Technical Design, Microsoft Power Platform, AI Workflows, Agentic Workflows, Generative AI Agents, Performance Tuning, Business Logic, AI Integrations, Agentic systems, Application Deployment, Generative AI, Performance Testing, Scalability, Data Integration, User Feedback
★ 2 (9) · Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: JSON, Restful API, API Design, Web Applications, Application Programming Interface (API), Responsive Web Design, Cascading Style Sheets (CSS), Dashboard Creation, Event-Driven Programming, HTML and CSS, Javascript, Wireframing, Web Servers, Web Development, Real Time Data, Game Design, Hypertext Markup Language (HTML), Servers, Software Development
★ 4.9 (22) · Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Amazon Web Services, AWS Identity and Access Management (IAM), Identity and Access Management, Amazon Elastic Compute Cloud, Cloud Deployment, Cloud Computing Architecture, Amazon CloudWatch, Amazon S3, Databases, Database Systems, Cloud Services, Cloud Computing, Relational Databases, Database Administration, Public Cloud, Amazon DynamoDB, Application Deployment, Database Design, AWS CloudFormation, Cloud Storage
Intermediate · Specialization · 3 - 6 Months

28DIGITAL
Skills you'll gain: Strategic Decision-Making, Business Strategy, Strategic Thinking, Business Leadership, Decision Making, Corporate Strategy, Artificial Intelligence, Leadership, Digital Transformation, AI Integrations, Organizational Structure, Organizational Change
★ 4.2 (61) · Beginner · Course · 1 - 4 Weeks

Technical University of Munich (TUM)
Skills you'll gain: Traffic Flow Optimization, Transportation Management, Transportation Operations, Sustainable Systems, Demand Planning, Environmental Regulations, Sustainable Design, Environmental Issue, Sustainable Engineering, Regulatory Requirements, Law, Regulation, and Compliance, Sustainable Business, Feasibility Studies, Regulatory Affairs, Emerging Technologies, Regulatory Compliance, Safety Assurance, Concept Of Operations, Customer Demand Planning, Data-Driven Decision-Making
★ 4.5 (94) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Node.JS, Full-Stack Web Development, HTML and CSS, JavaScript Frameworks, User Interface (UI), Application Deployment, Application Frameworks, Back-End Web Development, Frontend Integration, Front-End Web Development, Hypertext Markup Language (HTML), MongoDB, User Interface (UI) Design, Secure Coding, Middleware, Bootstrap (Front-End Framework), jQuery, Javascript, Cascading Style Sheets (CSS)
★ 4.2 (67) · Intermediate · Specialization · 1 - 3 Months
Skills you'll gain: Vue.JS, HTML and CSS, Hypertext Markup Language (HTML), Web Applications, JavaScript Frameworks, Front-End Web Development, Web Design and Development, Cascading Style Sheets (CSS), Web Components, Web Development, Javascript, Data Persistence
★ 4.2 (45) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: TypeScript, Javascript, Functional Design, Code Reusability, Object Oriented Programming (OOP), Programming Principles, Web Development Tools, Data Structures, Development Environment, Maintainability, System Configuration, Enterprise Application Management
Beginner · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon S3, Amazon Web Services, Cloud Storage, Data Storage, Data Storage Technologies, Amazon Elastic Compute Cloud, AWS Identity and Access Management (IAM), Cloud Security, Security Controls, File Management, File Systems, Key Management, Encryption
★ 4.8 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard Creation, Data Presentation, Performance Measurement, Business Metrics, Data Storytelling, Data Visualization Software, Data Analysis Software, Small Data, Decision Making, Big Data
★ 5 (16) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Responsive Web Design, JSON, jQuery, Restful API, HTML and CSS, Bootstrap (Front-End Framework), API Design, GitHub, Git (Version Control System), Postman API Platform, Web Design, Javascript and jQuery, Hypertext Markup Language (HTML), Web Development, MongoDB, Back-End Web Development, Full-Stack Web Development, Cascading Style Sheets (CSS), Program Development
★ 4.8 (12) · Beginner · Specialization · 3 - 6 Months