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: Selenium (Software), Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Eclipse (Software), File I/O, Test Tools, File Management, Cascading Style Sheets (CSS), Extensible Markup Language (XML), Test Automation, Extensible Languages and XML, Computer Programming, Development Environment, Integrated Development Environments, Software Testing, Test Script Development, Test Case, Data Structures
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Matplotlib, Object Oriented Programming (OOP), Plotly, Seaborn, Data Visualization Software, Object Oriented Design, Data Visualization, Pandas (Python Package), NumPy, Statistical Visualization, Plot (Graphics), Interactive Data Visualization, Data Presentation, Software Documentation, Scatter Plots, Technical Documentation, Data Structures, Maintainability, Data Import/Export, Data Manipulation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Java, Java Programming, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Computer Programming, Android Development, Application Development, Programming Principles, Program Development, Problem Solving
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Javascript, Application Programming Interface (API), Code Reusability, Software Design Patterns, Data Management, Data Structures, Web Development, Computational Logic, Programming Principles, Data Import/Export, Software Development, Software Engineering, Performance Tuning
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: C# (Programming Language), Data Modeling, User Interface (UI), jQuery, Microsoft SQL Servers, User Interface (UI) Design, Application Design, Microsoft Visual Studio, Application Development, Data Validation, Code Reusability, Database Application, Business Reporting, Data Management, Object Oriented Design, .NET Framework, Data Structures, Web Development, Maintainability, Performance Tuning
Beginner · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Programming Principles, Software Design, Education Software and Technology, Computer Programming, Program Development, Debugging, Data Structures, Algorithms
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Microsoft Visual Studio, Development Environment, Maintainability, Integrated Development Environments, Microsoft Development Tools, Scalability, Software Development Tools, Python Programming, Debugging
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Kotlin, Object Oriented Design, Application Design, Development Environment, Application Development, Functional Testing, Clinic Management Systems, Data Access
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Object Oriented Programming (OOP), C and C++, C++ (Programming Language), Data Structures, Object Oriented Design, Code Reusability, Memory Management, Data Persistence, Algorithms
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Unified Modeling Language, Data Modeling, Data Structures, Scripting, Object Oriented Design, Object Oriented Programming (OOP), Diagram Design, Scripting Languages, Software Visualization, Program Development, Python Programming, Software Design, Data Management, Computer Programming, Software Engineering
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Android Studio, Android Development, Kotlin, Interactive Design, Object Oriented Programming (OOP), Code Reusability, User Interface (UI) Design, Mobile Development, Android (Operating System), Object Oriented Design, UI Components, Relational Databases, Maintainability, Program Development, PostgreSQL, Database Design, Database Development, Application Development, Application Design, Development Environment
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Animation and Game Design, Software Architecture, Visualization (Computer Graphics), Object Oriented Design, Code Reusability, Scripting, C# (Programming Language)
Mixed · Course · 1 - 4 Weeks