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: Bootstrap (Front-End Framework), Responsive Web Design, HTML and CSS, UI Components, Web Design and Development, Front-End Web Development, Cascading Style Sheets (CSS), Web Design, Web Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Incident Response, IT Security Architecture, Secure Coding, Application Security, Identity and Access Management, Information Systems Security Assessment Framework (ISSAF), Security Testing, Continuous Monitoring, Information Systems Security, Network Security, Security Strategy, Zero Trust Network Access, Security Awareness, Security Information and Event Management (SIEM), Risk Management Framework, Disaster Recovery, Security Requirements Analysis, Cybersecurity, Enterprise Architecture
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Process Mapping, Process Flow Diagrams, Content Creation, User Accounts, Business
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Secure Coding, Security Controls, HTML and CSS, UI Components
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Computational Logic, System Requirements, Functional Requirement, Theoretical Computer Science, Systems Analysis, Verification And Validation, Control Systems, Linear Algebra, Differential Equations, Applied Mathematics
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extract, Transform, Load, Data Validation, Data Transformation, Applied Machine Learning, Object-Relational Mapping, Data Wrangling, Data Cleansing, Data Manipulation, Data Integration, Web Scraping, Data Quality, Data Pipelines, Pandas (Python Package), Descriptive Statistics, Data Modeling, Data Science, Python Programming, Scikit Learn (Machine Learning Library), Extensible Markup Language (XML), Data Analysis
Beginner · Specialization · 1 - 4 Weeks
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Real Time Data, Application Development, .NET Framework, Performance Tuning, Secure Coding, C# (Programming Language), System Programming, Application Performance Management, Object Oriented Programming (OOP)
Intermediate · Guided Project · Less Than 2 Hours

ESSEC Business School
Skills you'll gain: Collaboration, Sustainable Development, Decision Making, Business Transformation, Environmental Issue, Social Impact, Socioeconomics, Systems Thinking, Sustainable Business, Economics, Policy, and Social Studies, Adaptability, Community Development, Cultural Diversity, Governance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Strategic Decision-Making, Corporate Strategy, Business Strategies, Business Strategy, Business Ethics, Organizational Strategy, Strategic Leadership, Business Planning, Growth Strategies, Environmental Social And Corporate Governance (ESG), Strategic Prioritization, Strategic Planning, Strategic Thinking, Management Information Systems, Stakeholder Management, Business Administration, Operational Efficiency, Business, Business Process Reengineering, Organizational Effectiveness
Beginner · Specialization · 3 - 6 Months

Simplilearn
Skills you'll gain: Email Marketing, Target Audience, Lead Generation, Marketing Automation, Newsletters, Campaign Management, Driving engagement, Direct Marketing, Promotional Strategies, Digital Marketing, Content Marketing, Customer Relationship Management (CRM) Software, Customer Engagement, Sales, Automation, Law, Regulation, and Compliance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Hardware, SQL, Database Design, Hardware Troubleshooting, Databases, Computer Networking, Relational Databases, Network Protocols, Information Technology, Network Routers, Wireless Networks, System Configuration, Peripheral Devices
Beginner · Course · 1 - 4 Weeks