SOLID Principles for Maintainable Code

Apply the Single Responsibility Principle (SRP) to create cohesive classes.

Apply the Open/Closed Principle (OCP) to design classes that are open for extension but closed for modification.

Apply the Liskov Substitution Principle (LSP) to ensure subtype substitutability.

Apply the Interface Segregation Principle (ISP) to create focused, client-specific interfaces.

Apply the Dependency Inversion Principle (DIP) to depend on abstractions, not concretions.

Identify SOLID principle violations in existing code examples.

Refactor code to improve its adherence to SOLID principles.