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Polymorphism: SCJP 1.5 Part2 - Question: 18.

Alam Ameghino
Ranch Hand

Joined: Jun 01, 2011
Posts: 60
Hi friends.

This is a question about polymorphism.

The exercise is the next:

The options are:

1.) #1
2.) #2
3.) #3
4.) #4
5.) Nowhere, since this program does not compile
6.) This program is not valid and hence there is no poymorphism

The correct answers are 2) y 3), but for me it is wrong. For me there isn't polymorphism in previous example.


Polymorphism is present in the next exercise. Here, in runtime, JVM decide what m() method is called.

Am I right?

Thanks!
Alam Ameghino
Ranch Hand

Joined: Jun 01, 2011
Posts: 60
Sorry, and the explication is: "Polymorphism is exhibited wherever a base class calls a subclass implementation".
 
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subject: Polymorphism: SCJP 1.5 Part2 - Question: 18.