How can SOLID principles impact team collaboration in software development?
By automating code review processes
By reducing the need for communication within the team
By enforcing strict coding style guidelines
By promoting a shared understanding of code structure and design
What could be a potential downside of excessively applying the Interface Segregation Principle?
It reduces code reusability.
It can lead to a higher number of interfaces, potentially increasing code complexity.
It makes the code more difficult to unit test.
It violates the principles of object-oriented programming.
What is the core idea behind the Single Responsibility Principle (SRP)?
A class should interact with as few other classes as possible.
A class should have a single, well-defined responsibility.
A class should be as small as possible.
A class should have only one method.
What is the core idea behind the Interface Segregation Principle (ISP)?
Clients should not be forced to depend on methods they don't use.
Subclasses should be substitutable for their base classes.
Code should be open for extension but closed for modification.
Classes should have only one responsibility.
Which of these techniques can help achieve the Open/Closed Principle?
Avoiding the use of design patterns.
Hardcoding values directly into classes.
Copying and pasting code to create new functionality.
Using abstract classes and interfaces.
Which scenario best exemplifies the Dependency Inversion Principle?
A 'Logger' class writes logs directly to a file.
A 'DataProcessor' class depends on an 'IDataSource' interface, not a specific database implementation.
A 'Car' class directly instantiates and uses an 'Engine' class.
A 'LightSwitch' class is directly dependent on a 'LightBulb' class.
Why is the Open/Closed Principle important in software development?
It promotes code duplication.
It complicates the development process.
It increases the risk of introducing bugs during modification.
It makes code less readable.
In the context of ISP, why are 'role interfaces' considered good practice?
They are only applicable to abstract classes, not interfaces.
They define a broad set of methods used by many unrelated classes.
They are specific to how a particular client uses a class, regardless of its primary responsibility.
They violate the Single Responsibility Principle.
How does using interfaces contribute to the Open/Closed Principle?
Interfaces define a contract that can be implemented by multiple classes, enabling flexibility.
Interfaces make code execution slower.
Interfaces force tight coupling between classes.
Interfaces allow for direct modification of existing class code.
A class EmailService implements an interface ICommunication with methods sendEmail(), sendSMS(), and makeCall(). Only the email functionality is relevant to EmailService. How can this design be improved according to ISP?
EmailService
ICommunication
sendEmail()
sendSMS()
makeCall()
Throw an exception in EmailService for the unused methods: sendSMS() and makeCall().
Create separate interfaces: IEmailService, ISMSService, and ICallService, and have EmailService implement only IEmailService.
IEmailService
ISMSService
ICallService
Keep the current design, as it provides a single point of access for all communication methods.
Move all methods (sendEmail(), sendSMS(), makeCall()) to the EmailService class.