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SOLID

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SOLID is a set of five design principles that help developers create maintainable, scalable, and flexible software. The principles are:

  • Single Responsibility Principle (SRP): A class should have only one reason to change, meaning it should only have one job or responsibility.
  • Open/Closed Principle (OCP): Software entities (classes, modules, functions) should be open for extension but closed for modification.
  • Liskov Substitution Principle (LSP): Objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.
  • Interface Segregation Principle (ISP): Clients should not be forced to depend on interfaces they do not use. Instead, many specific interfaces are better than a single general-purpose interface.
  • 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.

By adhering to these principles, developers can create software that is easier to understand, maintain, and extend over time.