How does using interfaces contribute to the Open/Closed Principle?
Interfaces allow for direct modification of existing class code.
Interfaces force tight coupling between classes.
Interfaces define a contract that can be implemented by multiple classes, enabling flexibility.
Interfaces make code execution slower.
What could be a potential downside of excessively applying the Interface Segregation Principle?
It can lead to a higher number of interfaces, potentially increasing code complexity.
It violates the principles of object-oriented programming.
It makes the code more difficult to unit test.
It reduces code reusability.
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()
Keep the current design, as it provides a single point of access for all communication methods.
Create separate interfaces: IEmailService, ISMSService, and ICallService, and have EmailService implement only IEmailService.
IEmailService
ISMSService
ICallService
Throw an exception in EmailService for the unused methods: sendSMS() and makeCall().
Move all methods (sendEmail(), sendSMS(), makeCall()) to the EmailService class.
Which of the following is the most accurate description of SOLID principles?
Strict rules that must be followed in all programming scenarios
Guidelines that help write more maintainable and scalable software
Tools for automatically generating code
Advanced design patterns for specific software architectures
What is a potential drawback of NOT following SRP?
Classes become more reusable and easier to understand.
Changes in one part of the code are less likely to affect other parts.
The codebase becomes more difficult to maintain and prone to bugs.
Classes become more focused and have a clearer purpose.
What is the core idea behind the Interface Segregation Principle (ISP)?
Subclasses should be substitutable for their base classes.
Clients should not be forced to depend on methods they don't use.
Classes should have only one responsibility.
Code should be open for extension but closed for modification.
In the context of LSP, what is meant by 'substitutability'?
The ability to change the behavior of a superclass by modifying its subclass.
The practice of always using abstract classes instead of concrete classes.
The idea that all methods in a subclass should be static.
The capability to use a subclass object wherever a superclass object is expected without causing issues.
How can SOLID principles impact team collaboration in software development?
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
By automating code review processes
How does the Interface Segregation Principle contribute to loose coupling in software design?
By encouraging the use of global variables for communication between classes.
By minimizing dependencies between classes to only what is absolutely necessary.
By promoting the use of concrete classes instead of interfaces.
By reducing the need for unit testing.
Which of the following best describes the Dependency Inversion Principle (DIP)?
Abstractions should depend on concrete implementations.
Both high-level and low-level modules should depend on abstractions.
High-level modules should depend on low-level modules.
Low-level modules should depend on high-level modules.