What are the solid principal

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SOLID principles are a set of five design principles in object-oriented programming to make software more maintainable, flexible, and scalable.

Single Responsibility Principle (SRP) - A class should have only one reason to change.
Open/Closed Principle (OCP) - Software entities should be open for extension but closed for modification.
Liskov Substitution Principle (LSP) - Objects of a superclass should be replaceable with objects of its subclasses without affecting the functionality.
Interface Segregation Principle (ISP) - A client should not be forced to implement interfaces they do not use.
Dependency Inversion Principle (DIP) - High-level modules should not depend on low-level modules. Both should depend on abstractions.

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