Explain Solid Principles and Where to use this with Example

Question

Accepted Answer

Solid Principles are a set of design principles for writing maintainable and scalable software.

Solid Principles consist of five principles: Single Responsibility Principle, Open/Closed Principle, Liskov Substitution Principle, Interface Segregation Principle, and Dependency Inversion Principle.
Single Responsibility Principle states that a class should have only one reason to change.
Open/Closed Principle states that software entities should be open for extension but closed for modification.
Liskov Substitution Principle states that objects of a superclass should be replaceable with objects of its subclasses without affecting the correctness of the program.
Interface Segregation Principle states that clients should not be forced to depend on interfaces they do not use.
Dependency Inversion Principle states that high-level modules should not depend on low-level modules, but both should depend on abstractions.
Solid Principles help in achieving code that is modular, maintainable, and easy to understand.
Example: Applying the Single Responsibility Principle, a class that handles user authentication should not also handle database operations. Instead, the database operations should be separated into a separate class.

Accepted Answer

I explained All the points of the SOLID principle. Then I gave one Example with a Scenario. Explained need for Solid principle.

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