CHAPTER 52 — More About Polymorphism

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created: 2/20/99; revised: 7/16/99, 01/24/00, 07/22/02, 06/05/03

CHAPTER 52 — More About Polymorphism

This chapter continues the discussion of polymorphism begun in the previous chapter. Recall that polymorphism is when a reference variable may at different times in a program refer to objects of different (but related) classes.

Chapter Topics:

  • Signature of a method
  • Overriding abstract methods
  • Arrays of related objects
  • The Object class
  • The instanceof operator

QUESTION 1:

(Review: ) What is a method's signature?

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