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.

Scrimba
Skills you'll gain: JavaScript Frameworks, UI Components, Full-Stack Web Development, React.js, TypeScript, Front-End Web Development, Web Development, Web Applications, Frontend Performance, Server Side, User Interface and User Experience (UI/UX) Design, Software Development, Routing Protocols
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Ajax, Web Design, Java Platform Enterprise Edition (J2EE), Cascading Style Sheets (CSS), Web Applications, Scripting, Javascript and jQuery, Web Development, Java, Hypertext Markup Language (HTML), Middleware, Model View Controller, Hibernate (Java), Service Oriented Architecture
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Post-Production, Adobe Premiere, Video Editing, Data Import/Export, Multimedia, Cinematography, Music, Editing, Quality Assurance
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Workflow Management, Business Workflow Analysis, Process Mapping, Process Analysis, Process Design, Business Process Management, Process Improvement, Operational Efficiency, Continuous Improvement Process, Team Management, Team Leadership, Analysis
Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica del Perú
Skills you'll gain: Augmented Reality, Augmented and Virtual Reality (AR/VR), Mobile Development, 3D Assets, Unity Engine, User Interface (UI) Design, iOS Development, Scripting, Video Game Development, Application Development, Android Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Program Management, Project Management Life Cycle, Diagram Design, Project Closure, Agile Methodology, Benefits Administration, Innovation, Change Management, Stakeholder Communications
Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Team Building, Management Training And Development, Teamwork, Organizational Leadership, Trustworthiness, People Management, Collaboration, Meeting Facilitation, Leadership, Cross-Functional Collaboration, Professional Development, Empathy, Conflict Management, Goal Setting, Communication, Adaptability
Beginner · Course · 1 - 4 Weeks

Adobe
Skills you'll gain: Layout Design, Typography, Graphic and Visual Design, Adobe Illustrator, Graphic and Visual Design Software, Visual Design, Graphic Design, Design, Design Elements And Principles, Adobe Creative Cloud, Content Creation, Creativity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Construction Engineering, Building Codes, Structural Engineering, Structural Analysis, Engineering Analysis, Construction, Engineering Calculations, Simulation and Simulation Software, Finite Element Methods, Civil Engineering, Construction Management, Engineering Practices, Environmental Monitoring, Safety Standards, Architecture and Construction, System Monitoring, Failure Analysis, Engineering Design Process, Engineering Drawings
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Marketing Budgets, Social Media Content, Social Media Campaigns, Collaborative Software, Social Media Marketing, Content Creation, Video Editing, Marketing Materials, Marketing, Graphic Design, Photo Editing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: z/OS, Computer Architecture, Mainframe Computing, Systems Architecture, Programming Principles, Data Structures, Computer Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Operations, Cybersecurity, Authentications, Python Programming, Data Access, System Monitoring, Systems Analysis
Mixed · Course · 1 - 4 Weeks