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.

EC-Council
Skills you'll gain: Node.JS, MongoDB, Angular, Full-Stack Web Development, JavaScript Frameworks, Restful API, Web Applications, Web Development, NoSQL, Front-End Web Development, Application Security, Web Development Tools, Application Programming Interface (API), API Design, Javascript, Database Management, Back-End Web Development, Servers, Middleware
Beginner · Course · 1 - 3 Months
Skills you'll gain: Project Scoping, Business Priorities, Business Analysis, Case Studies, Stakeholder Management, Project Design, Business, Data Science, Business Process, Data-Driven Decision-Making, Data Literacy
Intermediate · Course · 1 - 4 Weeks

Clemson University
Skills you'll gain: Database Design, Database Management Systems, MySQL, Database Theory, Relational Databases, Databases, Data Modeling, Database Architecture and Administration, SQL, NoSQL, Diagram Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Exploratorium
Skills you'll gain: Developing Training Materials, Collaboration, Creativity, Mechanics, Research, Creative Problem-Solving, Experimentation, Innovation, Mechanical Design, Aesthetics, Construction
Beginner · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Design Thinking, Brainstorming, Creative Thinking, Creativity, Ideation, Human Centered Design, Problem Solving, Curiosity, Innovation, Cognitive flexibility, Self-Awareness, Empathy
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Conflict Management, Emotional Intelligence, Mediation, Relationship Management, Teamwork, Negotiation, De-escalation Techniques, Collaboration, Leadership, Empathy, Leadership Development, Team Leadership, Organizational Leadership, Active Listening, Communication, Organizational Skills
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Interactive Learning, Developing Training Materials, Game Design, Education Software and Technology, Infographics, Content Creation, Digital pedagogy
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Blockchain, Development Environment, Software Development Tools, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Cloud Development, Event-Driven Programming, Development Testing, Javascript
Beginner · Course · 1 - 4 Weeks

ESSEC Business School
Skills you'll gain: Crisis Management, Performance Management, Business Continuity, Risk Management, Organizational Change, Business Communication, Communication, Action Oriented, Organizational Development, Decision Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Virtual Machines, Virtualization and Virtual Machines, Cloud Development, Cloud Deployment, Application Deployment, Linux, Full-Stack Web Development, Web Applications, Node.JS, MongoDB
Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction Engineering, Plumbing, Petroleum Industry, Building Codes, Civil Engineering, Construction Management, Oil and Gas, Construction, Energy and Utilities, Mechanical Engineering, Facility Repair And Maintenance, Safety Standards, Engineering Documentation, Manufacturing Standards, Mechanical Design, Design Specifications, Engineering Design Process, Materials science
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, API Design, API Testing, Spring Boot, Authentications, Test Automation, JSON, Application Programming Interface (API), Test Script Development, Application Deployment, Spring Framework, Object-Relational Mapping, Test Case, Software Quality Assurance, Business Logic, Back-End Web Development, Integration Testing, Software Engineering, Java Programming, Java
Beginner · Specialization · 1 - 3 Months