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.
University of Illinois Urbana-Champaign
Skills you'll gain: Peer Review, Financial Management, Financial Modeling, Financial Data, Financial Statement Analysis, Investment Management, Financial Analysis, Financial Forecasting, Data Storytelling, Mergers & Acquisitions, Cash Flows, Business Valuation, Case Studies, Risk Management, Corporate Strategy, Risk Analysis
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Scripting, Object Oriented Programming (OOP), Data Structures, Scripting Languages, Python Programming, Maintainability, Programming Principles, Development Environment, Software Installation, Virtual Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, Data Visualization, Data Modeling, Cloud Security, Databases, Database Management, Data Analysis Expressions (DAX), Advanced Analytics, Data Management, Data Governance, Data Preprocessing, Microsoft Excel, Amazon Web Services, Data Integration, Data Security, Cost Control, Cloud Computing, Spreadsheet Software, Excel Formulas, Predictive Modeling
Intermediate · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Authentications, Secure Coding, ASP.NET, Microsoft Copilot, Data Security, Back-End Web Development, Authorization (Computing), JSON, Identity and Access Management, Data Storage, Application Programming Interface (API), Encryption
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Organizational Change, Innovation, Change Management, New Product Development, Organizational Strategy, Cross-Functional Team Leadership, Team Leadership, Organizational Effectiveness, Product Lifecycle Management, Organizational Structure, Emerging Technologies, Business Strategy
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Network Routing, Network Troubleshooting, Virtual Networking, Network Performance Management, Network Monitoring, General Networking, Amazon Web Services, Network Planning And Design, Network Architecture, Capacity Management, Performance Tuning
Beginner · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Generative AI, Video Production, Photo/Video Production and Technology, AI Personalization, Artificial Intelligence and Machine Learning (AI/ML), Digital Content, Content Creation, Video Editing, Social Media Content, Marketing, Creative Design, Business, Marketing Automation, HR Tech, Content Marketing, Design and Product, Education and Training, Influencing, Digital Marketing, Personal Development
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Extract, Transform, Load, Data Cleansing, Power BI, Data Transformation, Data Manipulation, Data Management, Data Quality, Data Preprocessing, Data Validation, Data Integration, Data Modeling, Data Import/Export, Data Storage
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Semiconductors, Finite Element Methods, Medical Devices, Materials science, Electronics Engineering, Laboratory Testing, Electronics, Quality Assurance, Process Control, Biomedical Engineering, Electronic Systems, Product Testing, Mechanical Design, Manufacturing Processes, Electrical Engineering, Electronic Components, Computer Architecture, Process Engineering, Mechanical Engineering, Emerging Technologies
Intermediate · Specialization · 3 - 6 Months

École normale supérieure
Skills you'll gain: Theoretical Computer Science, Combinatorics, Algorithms, Advanced Mathematics, Linear Algebra, Mathematical Modeling, Probability
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Claude Code, Vibe coding, Anthropic Claude, Model Context Protocol, Application Development, Command-Line Interface, Application Design, Programming Principles, Generative AI, Automation, Generative AI Agents, Image Analysis, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems
Intermediate · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Operating Systems, Microsoft Office, System Software, Computer Networking, OS Process Management, Computer Architecture, Network Architecture, Computer Systems, Computer Science, Computing Platforms, Theoretical Computer Science, Computer Hardware, Computer Literacy, Network Protocols, Information Technology, Computational Logic, Data Storage
Mixed · Course · 1 - 3 Months