SOLID Design Principles

Explain the Single Responsibility and Open/Closed Principles and apply them to refactor a code example.

Explain the Liskov Substitution and Interface Segregation Principles and apply them to redesign a class hierarchy.

Explain the Dependency Inversion Principle and refactor code to use dependency injection.

Explain the principle of Composition over Inheritance and refactor a design to use it.

Define 'code smells' and identify common examples (e.g., Long Method, Large Class).

Apply foundational refactoring techniques (e.g., Extract Method) to improve code quality.