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?