Object-Oriented Design Courses and Certifications

Clean Code with Multiple Classes

Refactor C# systems with multiple classes using interfaces, abstract classes, dependency injection, polymorphism, and cross-class exception handling.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Applying Clean Code Principles

Apply DRY, KISS, Law of Demeter, and SOLID principles by refactoring C# code into more maintainable designs.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Career Certificate

Clean Code in C# Through Hands-on Practice

Practice writing clear, maintainable, and efficient C# code using clean code principles, class design, DRY, KISS, and SOLID.

• CodeSignal
• 8 hours
• Self-Paced
• Free Certificate
• 4 courses

Implementing Creational Patterns in C#

Implement Singleton, Factory Method, Abstract Factory, and Builder patterns in C# through logger, application, and banking examples.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Mastering Behavioral Patterns in C#

Apply Command, Observer, and Strategy patterns in C# to create flexible object interactions and maintainable applications.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Applying Design Patterns for Smart Home System

Apply creational, structural, and behavioral design patterns in C# by building smart home device, security, climate-control, and lighting systems.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Career Certificate

Mastering Design Patterns with C#

Apply creational, structural, and behavioral design patterns in C# by building a smart home system.

• CodeSignal
• 12 hours
• Self-Paced
• Free Certificate
• 5 courses

Revisiting Software Design Patterns in Go

Practice encapsulation, abstraction, polymorphism, and composition by implementing reusable software designs in Go.

• CodeSignal
• 5 hours
• Self-Paced
• Free Certificate

Refactoring Code for Readability and Maintainability

Learn to refactor Go code by identifying code smells, improving readability, and applying extraction, encapsulation, composition, decoupling, and modularization techniques.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate

Career Certificate

Clean Code with C++ Through Hands-on Practice

Practice writing clear, maintainable, and efficient C++ using clean code principles, classes, and SOLID.

• CodeSignal
• 8 hours
• Self-Paced
• Free Certificate
• 4 courses

Clean Coding with Classes

Refactor C++ classes with clean-code principles, using single responsibility, encapsulation, constructors, inheritance, composition, overriding, and overloading.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Clean Code with Multiple Classes

Practice keeping C++ code clean across multiple classes through refactoring, interfaces, dependency management, polymorphism, and exception handling.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Applying Clean Code Principles in C++

Apply DRY, KISS, Law of Demeter, and SOLID principles through practical C++ refactoring exercises.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Clean Coding with Classes

Refactor TypeScript classes for cleaner design using single responsibility, encapsulation, constructors, inheritance, composition, and interfaces.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Clean Code with Multiple Classes

Refactor TypeScript applications using clean-code principles for class collaboration, interfaces, dependency management, polymorphism, and error handling.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate