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.

EDUCBA
Skills you'll gain: Authentications, Application Frameworks, Web Applications, Web Development, Network Routing, Information Architecture, Unit Testing, Authorization (Computing), Middleware, Development Testing, Functional Testing, Application Security, Configuration Management, File Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Large Language Modeling, LLM Application, Application Programming Interface (API), Development Environment, Persona (User Experience), User Interface (UI), Authentications, User Interface (UI) Design
Advanced · Professional Certificate · 1 - 4 Weeks

Skills you'll gain: Data Visualization Software, Interactive Data Visualization, Application Development, Web Content Accessibility Guidelines, Color Theory
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Storytelling, Canva (Software), Presentations, Visual Design, Case Studies, Content Creation, Digital Design, Portfolio Management, Layout Design, Project Documentation, Graphic and Visual Design, Planning, Strategic Planning, Critical Thinking and Problem Solving, Goal Setting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: 3D Assets, 3D Modeling, Computer Graphic Techniques, Storytelling, Graphical Tools
Advanced · Course · 1 - 4 Weeks

H2O.ai
Skills you'll gain: LLM Application, Application Development, AI Enablement, User Interface (UI), Development Environment, Interactive Design, Cloud Deployment, Generative AI, Python Programming, Application Frameworks, Open Source Technology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Wide Area Networks, Software-Defined Networking, Open Shortest Path First (OSPF), Network Routing, Network Planning And Design, Virtual Networking, Network Architecture, Border Gateway Protocol, Network Performance Management, Network Protocols
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Game Design, Unreal Engine, System Design and Implementation, User Interface (UI), Video Game Development, User Interface and User Experience (UI/UX) Design, Animation and Game Design, Interaction Design, Virtual Environment, Storytelling
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Frontend Integration, Frontend Performance, Node.JS, Application Performance Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Sales Enablement, Sales Management, Sales, Customer Analysis, Governance, Sales Strategy, General Sales Practices, Talent Management, Competitive Analysis, Marketing, Sales Operations, Target Market, Selling Techniques, Verbal Communication Skills, Persuasive Communication, Sales Training, Oral Expression, Market Share, Sales Process, Business
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Image Analysis, Convolutional Neural Networks, Deep Learning, Model Evaluation, Recurrent Neural Networks (RNNs)
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Amazon CloudWatch, Amazon Web Services, Cloud Computing, Cloud Security, AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Cloud Computing Architecture, Cloud Deployment, Cloud Infrastructure, Public Cloud, General Networking, Amazon S3, Virtual Private Networks (VPN), Scalability, Load Balancing
Beginner · Course · 3 - 6 Months