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.

Edureka
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Memory Management, Programming Principles, Software Engineering, Debugging, Program Development, Data Structures, IntelliJ IDEA, Application Development, Software Development, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Unified Modeling Language, File I/O, Debugging, Object Oriented Programming (OOP), Object Oriented Design, Python Programming, Computer Programming, Programming Principles, System Programming, Pseudocode, Program Development, Event-Driven Programming, Diagram Design, Software Design, User Interface (UI), Data Structures, Graphical Tools
Build toward a degree
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Software Development Tools, Application Servers, Web Applications, Development Environment, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Development, Eclipse (Software), Program Development, Computer Programming, Object Oriented Design, Mobile Development, Programming Principles, Integrated Development Environments, UI Components, Event-Driven Programming, User Interface (UI), Virtual Machines
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, Relational Databases, Object-Relational Mapping, SQL, Data Access, Databases, Database Design, Data Persistence, Object Oriented Design, Java, Data Manipulation, Data Mapping, Java Programming, Database Development, JUnit, Object Oriented Programming (OOP), Database Management Systems, Database Software, Java Platform Enterprise Edition (J2EE)
Beginner · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), C++ (Programming Language), Object Oriented Design, Memory Management, Computer Programming, Code Reusability, Programming Principles, Algorithms, Data Structures, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Code Reusability, Object Oriented Design, Data Structures, Javascript and jQuery, Programming Principles, Web Development Tools, Data Management, Microsoft Development Tools, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: TypeScript, Javascript, Object Oriented Design, Functional Design, Code Reusability, Object Oriented Programming (OOP), Programming Principles, Web Development Tools, Computer Programming Tools, Data Structures, Development Environment, Maintainability, Data Integrity, Enterprise Application Management
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Unified Modeling Language, File I/O, System Programming, Visual Basic (Programming Language), System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Development Environment, Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Program Development, Computer Programming, Microsoft Development Tools
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Swift Programming, Apple iOS, iOS Development, Unit Testing, Apple Xcode, Development Testing, Authorization (Computing), Test Case, Mobile Development, Software Testing, Object Oriented Programming (OOP), Data Structures, Software Design Patterns, Object Oriented Design, Application Development, Software Design, Functional Design, Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Object Oriented Design, Software Development Tools, Computer Programming Tools, Code Reusability, Software Installation, Linux Commands
Intermediate · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Computational Thinking, Code Reusability, Application Development, Python Programming, Computer Programming, Development Environment, Computational Logic, Integrated Development Environments, System Software, Software Installation, Functional Design
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Database Application, Python Programming, Unit Testing, Computer Programming, Restful API, Cross Platform Development, Package and Software Management, Scripting, Data Science, Program Development, Computer Programming Tools, Software Development, Data Processing, Debugging, Programming Principles, User Interface (UI) Design, Regression Analysis, Machine Learning
Intermediate · Specialization · 1 - 3 Months