Inheritance and Object Methods Summary
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Questions and Answers

Which concept ensures that the base class's integrity is maintained in object-oriented programming?

  • Inheritance (correct)
  • Polymorphism
  • Encapsulation
  • Abstraction
  • In object-oriented programming, which class do all classes inherit from directly or indirectly?

  • Object (correct)
  • Root
  • Main
  • Base
  • Which concept allows a class to acquire methods from another class either directly or through a chain of inheritance?

  • Inheritance (correct)
  • Aggregation
  • Composition
  • Overloading
  • In the context of object-oriented programming, what is the purpose of Figure-12 mentioned in the text?

    <p>Summarizing methods inherited by all classes</p> Signup and view all the answers

    What type of relationship is established between two classes when one class inherits from another?

    <p>Parent-Child</p> Signup and view all the answers

    What is the main benefit of using inheritance in object-oriented programming?

    <p>Promotes software reusability</p> Signup and view all the answers

    Which access modifier is typically used to give derived classes access to base-class members?

    <p>Protected</p> Signup and view all the answers

    What is the purpose of using 'base' in derived classes in C#?

    <p>To access base-class members</p> Signup and view all the answers

    Which relationship does inheritance represent in object-oriented programming?

    <p>Is-a relationship</p> Signup and view all the answers

    In object-oriented programming, what does a derived class do in relation to a base class?

    <p>Add its own fields and methods to specialize</p> Signup and view all the answers

    How are objects treated in relation to their inheritance hierarchy?

    <p>Derived-class objects are treated as objects of their base class</p> Signup and view all the answers

    Which keyword declares that a derived-class method overrides a virtual or abstract base-class method?

    <p>override</p> Signup and view all the answers

    What happens when a method is overridden with a more restrictive access modifier?

    <p>It breaks the is-a relationship</p> Signup and view all the answers

    Which class represents an employee that receives a base salary in addition to a commission?

    <p>BasePlusCommissionEmployee</p> Signup and view all the answers

    What can copying and pasting code from one class to another lead to?

    <p>Errors and duplicated code</p> Signup and view all the answers

    Why must a derived-class constructor call its base-class constructor?

    <p>To ensure proper initialization of inherited instance variables</p> Signup and view all the answers

    What does the virtual keyword allow in a base-class method?

    <p>Enables overriding in derived classes</p> Signup and view all the answers

    Inheritance enables a derived class to access which type of members of its base class?

    <p>Protected members via public properties</p> Signup and view all the answers

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