Solid Principles, Inheritance and behavioral questions.

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In Swift, SOLID is an acronym that represents a set of five design principles aimed at making software development more understandable, flexible, and maintainable. These principles were originally introduced by Robert C. Martin and are widely adopted in object-oriented programming. Here's a brief overview of each SOLID principle in Swift:

Single Responsibility Principle (SRP):
- A class should have only one reason to change, meaning it should have only one responsibility or job.
- In Swift, this principle encourages you to create classes or types that are focused on performing a specific task or responsibility.
Open/Closed Principle (OCP):
- Software entities (classes, modules, functions, etc.) should be open for extension but closed for modification.
- In Swift, this can be achieved by using protocols, inheritance, and polymorphism to add new functionality without altering existing code.
Liskov Substitution Principle (LSP):
- Subtypes must be substitutable for their base types without altering the correctness of the program.
- In Swift, adhering to this principle means that subclasses should maintain the behavior and contracts of their parent classes.
Interface Segregation Principle (ISP):
- Clients should not be forced to depend on interfaces they do not use.
- In Swift, this can be implemented by creating small, specific protocols instead of large ones, allowing clients to adopt only the methods and properties they need.
Dependency Inversion Principle (DIP):
- High-level modules should not depend on low-level modules. Both should depend on abstractions.
- Abstractions should not depend on details. Details should depend on abstractions.
- In Swift, you can use protocols and dependency injection to achieve this principle, allowing for more flexible and testable code.

Solid Principles, Inheritance and behavioral questions.

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