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: Extract, Transform, Load, Apache Spark, Data Pipelines, Data Integration, Big Data, Data Processing, Data Warehousing, Data Management, Data Architecture, Database Design, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Development, Application Design, Debugging
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Server Side, Restful API, API Design, Database Management, Back-End Web Development, Databases, Database Systems, Node.JS, Application Programming Interface (API), Full-Stack Web Development, Authentications, Web Applications, JavaScript Frameworks, Web Development, Web Servers, Authorization (Computing), NoSQL, MongoDB, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Registration, User Accounts, Detail Oriented, Professionalism, Organizational Skills, Computer Literacy
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: API Testing, Restful API, Application Programming Interface (API), Test Script Development, Software Testing, JSON, Data Validation, Test Automation, Test Case, Development Environment
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Marketing Operations, Operations Management, Technical Management, Marketing Management, Media Planning, Marketing Strategies, Customer Relationship Management, Sales Management, Marketing and Public Relations, Verbal Communication Skills, Supply Chain Management, Branding, Marketing Budgets, Supply Chain, Loyalty Programs, Business Operations, Presentations, Financial Forecasting, Brand Management, Forecasting
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Nursing Management, Delegation Skills, Care Coordination, Patient Communication, Conflict Management, Patient Advocacy, Nursing Practices, Change Management, Leadership, Communication, Nursing Care, Professionalism, Teamwork, Collaboration, Resource Allocation, Patient Safety, Cultural Sensitivity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: z/OS, Computer Architecture, Mainframe Computing, System Programming, Computer Programming, Computational Logic, Data Storage, Job Control Language (JCL)
Intermediate · Course · 1 - 3 Months

Universitat Politècnica de València
Skills you'll gain: Web Content Accessibility Guidelines, Disabilities, Adaptive Equipment, Mobile Development, Hypertext Markup Language (HTML), Web Design, Education Software and Technology, Usability, User Interface (UI), Digital Design, Android (Operating System), Apple iOS, Diversity Equity and Inclusion Initiatives
Beginner · Course · 1 - 3 Months

Skills you'll gain: Video Game Development, Game Design, Rust (Programming Language), Algorithms, Application Programming Interface (API), Programming Principles, Application Design, Data Structures, Software Development, Development Testing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Photography, Photo Editing, Adobe Creative Cloud, Image Quality, Editing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Debugging
Intermediate · Course · 1 - 3 Months