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.

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

Macquarie University
Skills you'll gain: Incident Response, Incident Management, Cyber Governance, Computer Security Incident Management, Cyber Security Strategy, Cyber Attacks, Threat Management, Cyber Risk, Cyber Security Policies, Security Management, Cybersecurity, Security Strategy, Risk Analysis, Governance Risk Management and Compliance, Cyber Security Assessment, Cyber Operations, Compliance Management, Governance, Risk Management, Risk Control
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Core Data (Software), Restful API, Apple iOS, JSON, Swift Programming, Application Programming Interface (API), Mobile Development, Application Development, Data Persistence, Data Modeling, Authentications, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Content Management Systems, Web Content, Web Design, Web Design and Development, No-Code Development, Web Development, User Accounts, Graphic Design
Beginner · Guided Project · Less Than 2 Hours
West Virginia University
Skills you'll gain: Sales Management, Sales Territory Management, General Sales Practices, Training and Development, Sales Process, Sales Strategy, Organizational Structure, Compensation Management, Recruitment, Employee Performance Management, Interviewing Skills
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Color Theory, Sales, Marketing Collateral, Design, Sales Strategy, Marketing Materials, Layout Design, Digital Design, Intellectual Property, Graphic and Visual Design Software, Product Design, Marketing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Programming Principles, Object Oriented Programming (OOP), Debugging, Software Development
Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Data Storytelling, Dashboard, Power BI, Data Visualization, Interactive Data Visualization, Data Analysis, Data Modeling, Data Visualization Software, Data Analysis Expressions (DAX), Star Schema, Data Cleansing, Data Transformation, Data Import/Export, Data Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Oracle SQL Developer, Oracle Databases, Data Integrity, Business Logic, Stored Procedure, SQL, Data Persistence, Database Design, Database Development, Performance Tuning, Relational Databases, Database Management Systems, Database Application, Database Management, Web Services, Data Access, Programming Principles, Computational Logic, Data Storage Technologies, Authorization (Computing)
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Full-Stack Web Development, IntelliJ IDEA, Spring Boot, React.js, Restful API, Integrated Development Environments, Object-Relational Mapping, Web Development Tools, Back-End Web Development, Web Applications, Application Frameworks, Command-Line Interface, Data Access
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Unity Engine, Video Game Development, Event-Driven Programming, C# (Programming Language), User Interface (UI), Scripting, Animations, Debugging
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Mathematical Modeling, Control Systems, Network Model, Mechanical Engineering, Systems Analysis, Automation, Real-Time Operating Systems, Differential Equations, Safety Assurance, Verification And Validation
Build toward a degree
Intermediate · Course · 1 - 3 Months