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Q. If class Dog has a subclass Retriever, which of the following is true?

  • (A) Because of single inheritance, Dog can have no other subclasses.
  • (B) Because of single inheritance, Retriever can extend no other class except Dog.
  • (C) The relationship between these classes implies that Dog “is-a” Retriever.
  • (D) The relationship between these classes implies that Retriever “has-a” Dog.
  • Correct Answer - Option(B)
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  • Filed under category Java
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