15 Questions
What is the key to the Open Closed Principle?
Abstraction
What is the Open Closed Principle?
A module should be open for extension but closed for modification.
What does the LogOn function depend on according to the example?
Modem interface
What does the Liskov Substitution Principle state?
Subclasses should be substitutable for their base classes.
What does the Dependency Inversion Principle aim to achieve?
Decoupling high-level modules from low-level modules
What is the purpose of the Open Closed Principle?
The purpose of the Open Closed Principle is to allow modules to be open for extension but closed for modification, enabling changes in module behavior without altering the source code of the modules.
What does the Liskov Substitution Principle state?
The Liskov Substitution Principle states that subclasses should be substitutable for their base classes, meaning if a function takes an argument of type Base, it should be legal to pass in an instance of Derived to that function.
How does the Open Closed Principle relate to abstraction?
The Open Closed Principle is related to abstraction as it emphasizes that abstraction is the key to this principle, allowing for the extension of modules without modifying their source code.
According to the example, what does the LogOn function depend on?
According to the example, the LogOn function depends only upon the Modem interface, allowing for additional modems to be added without causing changes to the LogOn function.
What is the aim of the Dependency Inversion Principle?
The aim of the Dependency Inversion Principle is to invert the way high-level and low-level modules depend on each other, making high-level modules independent of the low-level implementation details.
According to the Open Closed Principle, a module should be open for _______ but closed for modification.
extension
Abstraction is the key to the _______ Closed Principle.
Open
The Liskov Substitution Principle states that subclasses should be substitutable for their _______ classes.
base
The Dependency Inversion Principle aims to invert the conventional dependencies and have high-level modules depend on _______ modules.
abstraction
The LogOn function depends only upon the _______ interface, according to the example.
Modem
Test your knowledge of class design principles including the Open Closed Principle, Liskov Substitution Principle, Dependency Inversion Principle, and Interface Segregation Principle.
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