About Question enthuware.ocpjp.v7.2.1305 :

[tn1408]

Could this method: public boolean add(Object o) be overloading the method: public boolean add(E e) of the ArrayList class?

[admin]

What happened when you tried it out ?
-Paul.

[dhunziker]

The actual compiler error is probably quite helpful here:

Code: Select all

Name clash: The method add(Object) of type BookList has the same erasure as add(E) of type ArrayList<E> but does not override it

You can still override the method using Book or overload it by using a type other than Object.

[ewebxml]

The explanation for option d) should say:

"Observe that BookList extends a typed ArrayList" instead of

"Observer that BookList extends a typed ArrayList".

Please confirm.

[admin]

Fixed.
Thank you for your feedback!