Java OOP

SHORT ANSWER QUESTIONS

INTERFACES & POLYMORPHISM

SOLUTIONS

1-implements

2-class, interface

3-method

4-true

5-all

6-a

7-b

8-b

9-d

10-no

11-@Override

12-true

13-Both method headers are missing their return-type.

14-The class Coconut needs to implement both methodA and methodB.

15-Because the method() in Coconut does not have an int parameter, it is not a match to the methodA in the interface. So we are not implementing the methods from the interface.

16-The @Override used over methodC() means that methodC() would have to be in the interface. As it is not there, Java gives an error. We could simply remove @Override over the methodC header.