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.

Banco Interamericano de Desarrollo
Skills you'll gain: Digital Transformation, Cybersecurity, Data Management, Big Data, Talent Management, Human Capital, Infrastructure Security, Interoperability, Analytics, Economics, Policy, and Social Studies, Data Security, Administration, Project Design, Public Policies, Data Governance, digital literacy, Policy Development, Public Administration, Process Improvement, Project Management
★ 4.8 (140) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Financial Modeling, Revenue Forecasting, Working Capital, Cash Flows, Business Valuation, Financial Forecasting, Expense Management, Financial Data, Cash Flow Forecasting, Operating Expense, Depreciation, Financial Analysis, Financial Statement Analysis, Financial Statements, Asset Management, Business Metrics, Balance Sheet, Forecasting, Equities, Capital Expenditure
★ 4.7 (95) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Graphic and Visual Design, Graphic Design, Graphic and Visual Design Software, Graphics Software, Graphical Tools, Creative Design
★ 4.4 (60) · Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: JSON, Event-Driven Programming, Javascript, Mobile Development, Data Structures, Application Development, Video Game Development, Web Applications, Programming Principles, Data Storage Technologies, Scripting Languages, Data Persistence, Computer Programming, Data Storage, Computational Logic, Front-End Web Development, Web Development
★ 4.7 (150) · Beginner · Course · 1 - 3 Months

Skills you'll gain: API Gateway, Serverless Computing, Cloud API, Restful API, Node.JS, Microsoft Azure, Application Programming Interface (API), API Design, API Testing, Network Routing, Application Deployment
★ 4.5 (112) · Beginner · Guided Project · Less Than 2 Hours

SkillUp
Skills you'll gain: SAP S/4HANA, Data Modeling, SAP Applications, Data Warehousing, Systems Architecture, Data Architecture, Enterprise Resource Planning, Functional Requirement, Software Development Tools, Data Migration, Application Deployment, Cloud Deployment, Organizational Structure, Compliance Reporting
★ 4.4 (65) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Generative AI, Google Gemini, Project Management, LLM Application, AI Enablement, Project Management Life Cycle, Data Ethics, Prompt Engineering, Case Studies, Project Documentation, Automation
★ 4.5 (162) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Layout Design, Target Audience, Graphic and Visual Design, Ethical Standards And Conduct, Professional Networking, Collaborative Software, Driving engagement, Content Management Systems, Application Programming Interface (API), Portfolio Management, Language Interpretation, Translation, and Studies
★ 4.1 (15) · Beginner · Course · 1 - 4 Weeks

Universidade Estadual de Campinas
Skills you'll gain: Android Studio, Android Development, Mobile Development, Event-Driven Programming, User Interface (UI), Application Development, Java, Development Environment, User Interface and User Experience (UI/UX) Design, Extensible Markup Language (XML), Object Oriented Programming (OOP)
★ 4.4 (65) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Portfolio Management, Portfolio Risk, Investment Management, Risk Management, Financial Management, Wealth Management, Finance, Financial Market, Investments, Financial Planning, Business Strategies, Financial Analysis, Asset Management, Risk Analysis, Investment Banking, Market Dynamics, Market Trend, Performance Measurement, Quantitative Research, Case Studies
★ 4.4 (152) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, UI Components, Web Design, Web Design and Development, Front-End Web Development, Animations, Mockups, User Interface (UI), User Interface (UI) Design, Web Development, Color Theory, Debugging
★ 4.5 (51) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Building Codes, Construction, Safety Assurance, Safety Standards, Building Services Engineering, Building Design, Facility Management and Maintenance, Hazard Analysis, Design Specifications, Systems Integration
★ 4.6 (75) · Intermediate · Course · 1 - 4 Weeks