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.

LearnQuest
Skills you'll gain: Core Data (Software), iOS Development, Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, Code Review, UI Components, Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Data Structures, Data Persistence, User Interface (UI), User Interface (UI) Design, Data Store, Application Development, Transaction Processing, Mobile Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Flutter (Software), User Interface (UI) Design, UI Components, User Interface and User Experience (UI/UX) Design, JSON, Object Oriented Programming (OOP), Object Oriented Design, Mobile Development, Package and Software Management, Code Reusability, Data Modeling
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Javascript and jQuery, Object Oriented Design, Scripting, Program Development, Web Applications, Scripting Languages, Computer Programming, Code Reusability, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Prototyping, Context Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Selenium (Software), Object Oriented Programming (OOP), Eclipse (Software), Java, Java Programming, JUnit, HTML and CSS, Object Oriented Design, Test Automation, Hypertext Markup Language (HTML), Software Testing, Test Script Development, Integrated Development Environments, Web Design and Development, Test Data, Test Tools, Browser Compatibility, Computer Programming, Web Development, Programming Principles
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Business Logic, SAP Applications, Unit Testing, Restful API, Application Deployment, Core Data (Software), Business Reporting, Code Reusability, Debugging, Behavior-Driven Development, Full-Stack Web Development, Test Script Development, Application Development, Development Testing, Object Oriented Design, Report Writing, Security Controls, HTML and CSS
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Data Access, Object Oriented Design, Relational Databases, Object Oriented Programming (OOP), Database Software, JUnit, Data Integrity, SQL, Database Development, Java, Java Programming, Database Management, Databases
Beginner · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Unified Modeling Language, Diagram Design, Software Design, Object Oriented Design, Dependency Analysis
Beginner · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Supervised Learning, Unsupervised Learning, Matplotlib, File I/O, Generative Adversarial Networks (GANs), Generative AI, NumPy, Object Oriented Programming (OOP), Model Training, Deep Learning, Image Analysis, Machine Learning Methods, Plot (Graphics), Object Oriented Design, Integrated Development Environments, Python Programming, Development Environment, Computer Programming Tools, Event-Driven Programming, Computer Programming
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, Computer Programming, Record Keeping
Intermediate · Guided Project · Less Than 2 Hours

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Test Driven Development (TDD), Unit Testing, JUnit, Program Development, Test Case, Test Automation, Software Testing, Testability, Maintainability, Software Design, Software Development, Object Oriented Design, Application Design, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Python Programming, Operating Systems, Package and Software Management, Code Reusability, File Systems, Computer Programming, Development Environment, Object Oriented Design, Scripting, Scripting Languages, Programming Principles, Data Processing, Debugging, Program Development, Cross Platform Development, Computer Programming Tools, Software Development, Data Structures
Intermediate · Specialization · 1 - 3 Months

Peking University
Skills you'll gain: Java Programming, Java, Program Development, Programming Principles, Computer Programming, Maintainability, Database Development, Object Oriented Programming (OOP), JUnit, Database Application, UI Components, C and C++, Data Access, Object Oriented Design, User Interface (UI), Application Development, Event-Driven Programming, File I/O, Data Structures
Intermediate · Course · 1 - 3 Months