Multiple Inheritance in Object-Oriented Programming
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Questions and Answers

Which statement best describes the relationship between 'Television', 'Radio', 'Electronic Device', and 'TaxableProperty'?

  • 'Television' and 'Radio' are sub-classes of both 'Electronic Device' and 'TaxableProperty'.
  • 'Television' is a sub-class of 'Electronic Device' and 'TaxableProperty', while 'Radio' is only a sub-class of 'Electronic Device'. (correct)
  • 'Television' and 'Car' are sub-classes of 'TaxableProperty', while 'Radio' is a sub-class of 'Electronic Device'.
  • 'Television' is a sub-class of both 'Electronic Device' and 'TaxableProperty', but 'Radio' is not a sub-class of either.

    • Why can't 'Radios' be a sub-class of 'TaxableProperty'?

  • Radios are exempt from taxation. (correct)
  • Radios do not inherit any properties from 'TaxableProperty'.
  • Radios are not included in the class hierarchy.
  • Radios are considered non-electronic devices.

    • In the context of the text, why do many designers avoid multiple inheritance?

  • It leads to overly complex class structures. (correct)
  • It makes it difficult to define sub-classes.
  • It results in conflicts between base classes.
  • It restricts the properties that can be inherited.

    • What would be the most appropriate classification for a 'Car' based on the information provided?

    <p>'Car' is not categorizable under either 'Electronic Device' or 'TaxableProperty'.</p> Signup and view all the answers

    How does the inheritance hierarchy differ between 'Television' and 'Radio'?

    <p>'Television' inherits properties from both 'Electronic Device' and 'TaxableProperty', while 'Radio' only inherits from 'Electronic Device'.</p> Signup and view all the answers

    What is the purpose of CRC cards in object-oriented analysis and design?

    <p>Identify classes, responsibilities, and collaborators</p> Signup and view all the answers

    Why are CRC cards considered portable?

    <p>Because they are physical objects</p> Signup and view all the answers

    How do CRC cards help in keeping object-oriented analysis and design at an appropriate level?

    <p>By being tangible and having limited information capacity</p> Signup and view all the answers

    What do class responsibilities represent according to the text?

    <p>The class's state and behavior</p> Signup and view all the answers

    When can CRC cards be handed over between software engineers?

    <p>When classes are being discovered and reviewed</p> Signup and view all the answers

    What is a key benefit of using CRC cards during group meetings?

    <p>Facilitating easy examination of system design by participants</p> Signup and view all the answers

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