Polymorphic Method Parameter

The Speaker class has a method Announce(Animal a). Because the parameter type is the base class Animal, the same method works for ANY subclass, and a.Sound() runs the subclass's version. Complete Announce so it returns Animal says:  followed by a.Sound(). Do NOT write a Main method.

For a Cow (whose Sound() returns Moo) the program prints the output shown in Expected Output.

Expected Output:

Animal says: Moo↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Polymorphism

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