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: Programmable Logic Controllers, Computational Logic, Code Reusability, Data Structures, Diagram Design, Dataflow, Microsoft Azure, Automation, Program Development, Performance Tuning, Data Management, System Configuration, Interactive Data Visualization, Data Integration, Functional Design, Fine-tuning, Communication, Simulations
Intermediate · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Data Structures, Data Processing, Code Reusability, Virtual Machines, Verification And Validation, Program Development, Python Programming, Maintainability, Data Manipulation, Programming Principles, Scripting, Development Environment, Scripting Languages, Computer Programming, Software Installation, Debugging, Software Development, Computer Programming Tools, Computational Logic, Cross Platform Development
★ 4.3 (6) · Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Figma (Design Software), User Interface (UI), UI Components, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Digital Design, User Experience, Style Guides, Prototyping, Interactive Design, Typography
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Sales Presentation, Presentations, Sales Presentations, Product Demonstration, Microsoft PowerPoint, Microsoft Office, Customer Analysis, Competitive Analysis, Productivity Software, Business Communication, Value Propositions
★ 4.8 (38) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Unreal Engine, Virtual Environment, 3D Assets, Game Design, Post-Production, Cinematography, Image Quality, Model Optimization
Mixed · Course · 1 - 4 Weeks

Tsinghua University
Skills you'll gain: Data Structures, Database Management Systems, System Design and Implementation, Programming Principles, Algorithms
Intermediate · Course · 1 - 3 Months
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), API Design, Cloud API, Restful API, Server Side, Web Development, Servers, JSON, Software Documentation, Web Applications, Javascript, Web Services, Technical Documentation, Application Security
★ 4.5 (6) · Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Node.JS, Full-Stack Web Development, Web Applications, Authentications, Server Side, JavaScript Frameworks, Back-End Web Development, Restful API, Middleware, Database Application, Dataflow, Data Validation, NoSQL, TypeScript, Application Programming Interface (API), Object-Relational Mapping, Authorization (Computing), MongoDB, Databases, MySQL
★ 4.8 (8) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Motion Graphics, Graphic and Visual Design Software, Graphical Tools, Color Matching, Content Creation, Music
★ 4.6 (19) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Brand Awareness, Market Research, Strategic Marketing, Branding, Brand Marketing, User Feedback, Brand Strategy, Marketing, Brand Management, Research, User Research
★ 4.9 (16) · Beginner · Guided Project · Less Than 2 Hours

Lecturio
Skills you'll gain: Constructive Feedback, Patient Communication, Patient Advocacy, Active Listening, Advocacy, Rapport Building, Conflict Management, Teamwork, Interpersonal Communications, Communication Strategies, Team Collaboration, Collaboration, Professionalism, Emotional Intelligence, Nursing and Patient Care, Diversity Awareness, Nurse Education, Composure, Empathy, Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Game Design, Android Development, Unity Engine, Video Game Development, Mobile Development, User Interface (UI) Design, User Interface (UI), UI Components, Debugging, C# (Programming Language), Development Testing, Scripting, Android (Operating System), Development Environment, Animations, Programming Principles, Event-Driven Programming, Software Installation
★ 4.3 (9) · Intermediate · Specialization · 3 - 6 Months