AS - OOP Encapsulation and Inheritance Retrieval Quiz

What is encapsulation in object-oriented programming?

• A method to override existing methods

• A process to define new classes from scratch

• A mechanism to hide technical details within an object

• A way to inherit properties from another class

What is the purpose of a 'get' method in encapsulation?

• To delete an attribute

• To create a new attribute

• To inspect the current value of an attribute

• To change the value of an attribute

In the context of inheritance, what is a superclass?

• A class that only contains private methods

• A class that cannot be inherited

• A class that defines attributes common to all subclasses

• A class that inherits attributes from another class

Which of the following is an advantage of inheritance?

• It increases the complexity of the code

• It requires rewriting all methods

• It allows code reusability

• It prevents code from being tested

What is a derived class?

• A class that only contains static methods

• A class that inherits attributes and methods from another class

• A class that is used as a template

• A class that cannot be instantiated

How does encapsulation improve software quality?

• By making all methods public

• By keeping related code together in one place

• By allowing direct access to all attributes

• By eliminating the need for testing

What happens if no 'set' method is provided for an attribute?

• The attribute can be changed directly

• The attribute cannot be altered

• The attribute is automatically deleted

• The attribute becomes public

What is the role of a base class in inheritance?

• To define additional properties for subclasses

• To prevent any class from being derived

• To provide attributes and methods to derived classes

• To inherit properties from derived classes

How does inheritance support code reusability?

• By preventing any code modifications

• By making all classes abstract

• By allowing new classes to be created from existing ones

• By requiring new code for all methods

What is a key benefit of using inheritance in OOP?

• It complicates the class hierarchy

• It increases development time

• It allows for the reuse of tested code

• It requires more testing for base classes