Inheritance
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Questions and Answers

What is a superclass in Java?

  • A class that cannot be subclassed
  • Any class above a specific class in the class hierarchy (correct)
  • A class that is not part of the Java API
  • A class that can only have one subclass
  • How is a class derived in Java?

  • By using the derives keyword
  • By using the inherits keyword
  • By using the extends keyword (correct)
  • By using the inheritsFrom keyword
  • What is a subclass in Java?

  • A class that cannot inherit from a superclass
  • Any class below a specific class in the class hierarchy (correct)
  • A class that is not part of the Java API
  • A class that is not allowed to override methods
  • What is a benefit of inheritance in OOP?

    <p>Reusability – Once a behavior (method) is defined in a superclass, that behavior is automatically inherited by all subclasses</p> Signup and view all the answers

    What does a subclass need to implement in relation to its superclass?

    <p>Only the differences between itself and the parent</p> Signup and view all the answers

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