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: Server Side, Web Applications, Javascript, JSON, Node.JS, PHP (Scripting Language), Restful API, Application Programming Interface (API), Extensible Markup Language (XML), Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), User Interface (UI)
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Multiprotocol Label Switching, Routing Protocols, Network Routing, Network Engineering, Network Monitoring, Network Performance Management, Network Troubleshooting, Network Planning And Design, Network Administration, Network Protocols
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Color Theory, Javascript, Front-End Web Development, User Interface (UI) Design, Web Development, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Command-Line Interface, Operating Systems, Python Programming, File Management, Scripting, User Interface (UI), Data Import/Export, Data Structures, Simulations
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Pinterest, Content Creation, Marketing Materials, Business Intelligence, Social Media, Brand Awareness, User Accounts, Account Management, Graphic Design, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skillshare
Skills you'll gain: 3D Modeling, 3D Assets, Visualization (Computer Graphics), Computer Graphics, Graphical Tools, Data Import/Export, User Interface (UI), Animation and Game Design
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: User Story, Quality Assurance, Jira (Software), Agile Methodology, Verification And Validation, Product Quality (QA/QC), Quality Assessment, Agile Project Management, Sprint Planning, Workflow Management, Project Estimation
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Cloud Deployment
Intermediate · Course · 1 - 3 Months

The Open University
Skills you'll gain: Sustainable Business, Systems Thinking, Sustainable Development, Corporate Sustainability, Stakeholder Analysis, Sustainability Standards, Business Systems Analysis, Process Mapping, Complex Problem Solving, Innovation, Problem Solving, Interviewing Skills
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Adobe InDesign, Adobe Creative Cloud, Document Management, Layout Design, File Management, Productivity Software, Graphic Design, Multimedia, Digital Publishing, Graphic and Visual Design, User Interface (UI), Style Guides, Graphic and Visual Design Software, Typography
Mixed · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Data Validation, Web Development Tools
Intermediate · Course · 1 - 4 Weeks
Dassault Systèmes
Skills you'll gain: Drafting and Engineering Design, Engineering Drawings, Technical Drawing, Mechanical Drawings, Assembly Drawing, Computer Aided Three-Dimensional Interactive Application (CATIA), Geometric Dimensioning And Tolerancing, 3D Modeling, Visualization (Computer Graphics)
Beginner · Course · 1 - 4 Weeks