Clean Coding Fundamentals

Which principle states that objects of a derived class should be able to replace objects of the base class without affecting the correctness of the program?

• Single Responsibility

• Open/Close

• Liskov Substitution

• Interface Segregation

When applying the Open/Closed Principle, developers should:

• Modify existing code to add new functionality

• Extend existing code without modifying its source

• Ensure classes have only one responsibility

• Create multiple, smaller interfaces

The Interface Segregation Principle is violated when:

• A class has multiple responsibilities

• A class is open for extension but closed for modification

• A single interface contains methods that not all implementing classes use

• High-level modules depend on abstractions

When should a developer implement a new functionality according to the YAGNI principle?

• When the functionality is explicitly required

• When the functionality might be needed in the future

• When the functionality is simple to implement

• When the functionality would make the system more complex

In which scenario is the Builder design pattern most appropriate?

• When object creation involves a complex multi-step process

• When an object needs to be created based on input from the user

• When the object creation logic should be decoupled from the main application

• When an object's behavior needs to change at runtime

Which design pattern is useful when you have two incompatible interfaces that need to work together?

• Factory Method

• Builder

• Adaptor

• MVC

In the context of the MVC design pattern, which component is responsible for handling user input

• Model

• View

• Controller

• Adapter