SOLID Principles

Front

Which of the following best represents the Single Responsibility Principle (SRP)? A class that performs validations, connects to a database, and generates reports; A class that is only responsible for sending email notifications; A class with multiple utility static methods; A class with different methods for handling business and UI logic

Back

A class that is only responsible for sending email notifications

Front

Which SOLID principle applies to avoiding modifying an existing class to add new behaviors?

Back

Open/Closed Principle

Front

What is an example of a violation of the Liskov Substitution Principle (LSP)?

Back

A subclass changes the expected behavior of the base class.

Front

What can happen if an interface has too many methods that a class doesn't need? (ISP)

Back

The classes implement methods they don't need.

Front

Which best describes the Dependency Inversion Principle (DIP)? Options: Classes should depend on other concrete classes, Interfaces should inherit from concrete classes, Classes should depend on abstractions, not implementations, Dependencies should be resolved manually within classes

Back

Classes should depend on abstractions, not implementations