Explain the SOLID Principles of Object-Oriented Software Engineering with Examples
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SOLID represents five fundamental design principles for building maintainable, understandable, and flexible software architectures: S - Single Responsibility Principle (SRP): A ...
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Model Answer & Deep-Dive Explanation
SOLID represents five fundamental design principles for building maintainable, understandable, and flexible software architectures:
- S - Single Responsibility Principle (SRP): A class should have only one reason to change, meaning it should perform only a single cohesive function.
- O - Open/Closed Principle (OCP): Software entities should be open for extension, but closed for modification.
- L - Liskov Substitution Principle (LSP): Subtypes must be substitutable for their base types without altering program correctness.
- I - Interface Segregation Principle (ISP): Clients should not be forced to depend on interfaces they do not use.
- D - Dependency Inversion Principle (DIP): High-level modules should not depend on low-level modules; both should depend on abstractions.
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- 1 Give a concise, high-level definition before diving into technical details.
- 2 Provide a concrete real-world production use case or code example.
- 3 Contrast with common alternatives or prior versions.
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