18 Questions
Which concept ensures that the base class's integrity is maintained in object-oriented programming?
Inheritance
In object-oriented programming, which class do all classes inherit from directly or indirectly?
Object
Which concept allows a class to acquire methods from another class either directly or through a chain of inheritance?
Inheritance
In the context of object-oriented programming, what is the purpose of Figure-12 mentioned in the text?
Summarizing methods inherited by all classes
What type of relationship is established between two classes when one class inherits from another?
Parent-Child
What is the main benefit of using inheritance in object-oriented programming?
Promotes software reusability
Which access modifier is typically used to give derived classes access to base-class members?
Protected
What is the purpose of using 'base' in derived classes in C#?
To access base-class members
Which relationship does inheritance represent in object-oriented programming?
Is-a relationship
In object-oriented programming, what does a derived class do in relation to a base class?
Add its own fields and methods to specialize
How are objects treated in relation to their inheritance hierarchy?
Derived-class objects are treated as objects of their base class
Which keyword declares that a derived-class method overrides a virtual or abstract base-class method?
override
What happens when a method is overridden with a more restrictive access modifier?
It breaks the is-a relationship
Which class represents an employee that receives a base salary in addition to a commission?
BasePlusCommissionEmployee
What can copying and pasting code from one class to another lead to?
Errors and duplicated code
Why must a derived-class constructor call its base-class constructor?
To ensure proper initialization of inherited instance variables
What does the virtual keyword allow in a base-class method?
Enables overriding in derived classes
Inheritance enables a derived class to access which type of members of its base class?
Protected members via public properties
This quiz covers the topic of inheritance in object-oriented programming, highlighting how all classes inherit directly or indirectly from the object class. The quiz also discusses the preservation of the base class integrity and provides a summary of object methods inherited by all classes.
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