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.

Universitat Politècnica de València
Skills you'll gain: Econometrics, Qualitative Research, Scientific Methods, Research, Quantitative Research, STATA (Software), Research Methodologies, Data Analysis, Research Design, Stata, Data Ethics, Data Collection, Statistical Methods, Statistical Analysis, Analytical Skills, Informed Consent, Surveys, Estimation, Regression Analysis, Ethical Standards And Conduct
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Apple iOS, Apple Xcode, Swift Programming, iOS Development, Core Data (Software), Mobile Development, Secure Coding, User Interface (UI), Application Deployment, Scalability, User Interface (UI) Design, UI Components, Debugging, Data Persistence, Data Management, Model View Controller, Performance Tuning, Programming Principles, Application Programming Interface (API), Application Security
Beginner · Specialization · 1 - 3 Months

Università di Napoli Federico II
Skills you'll gain: Team Building, Collaboration, Teamwork, Lifelong Learning, Telecommuting, English Language, Stress Management, Business Communication, Communication, Virtual Teams, Productivity, Professional Development, Organizational Skills, digital literacy, Digital Transformation, Workforce Management, Adaptability, Productivity Software, Problem Solving
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Web Development Tools, Javascript, Cross Platform Development, Web Applications, Node.JS, Web Development
Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica del Perú
Skills you'll gain: User Story, User Experience Design, Usability, Functional Requirement, System Requirements, User Experience, Requirements Analysis, Persona (User Experience), User Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SQL, Database Management, Query Languages, Data Analysis, Performance Tuning, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Creo Incubator
Skills you'll gain: Go To Market Strategy, Ideation, Growth Strategies, Entrepreneurial Finance, Entrepreneurship, Market Analysis, Brand Strategy, Marketing Strategies, Financial Forecasting, Product Marketing, Business Planning, Creative Problem-Solving, Business Valuation, Fundraising, Business Development, Product Management, Mergers & Acquisitions, Market Research, Financial Modeling, Critical Thinking and Problem Solving
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Google Cloud Platform, Data Infrastructure, Machine Learning, Systems Design, Data Processing, Data Pipelines, Data Architecture, Big Data, Data Warehousing, Cloud Engineering, Data Visualization, Cloud Security, Data Storage, Scalability, Data Migration, SQL
Advanced · Course · 1 - 3 Months

Skills you'll gain: JSON, API Testing, Restful API, Software Quality Assurance, Software Engineering, Test Script Development, Java, Data Mapping, Software Testing, Test Case, Test Data
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Canva (Software), Graphical Tools, Graphic Design, Graphic and Visual Design, Design, Data Sharing, Design Software, Content Creation, User Accounts, Social Media, Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Video Production, Video Editing, Videography, Photo/Video Production and Technology, Cinematography, Storytelling
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Game Design, Investments, Test Automation, Digital Assets, Investment Management, Unit Testing, Development Testing, Cryptography, Key Management, Program Development, Emerging Technologies, Return On Investment, General Finance, FinTech, Payment Systems, Software Development, Web Development Tools, Asset Management, Development Environment
Beginner · Course · 3 - 6 Months