Clarification request on question ID enthuware.ocajp.i.v7.2.983

[flex567]

Currently answer 4 is phrased like this

Code: Select all

Object o = b; Runnable r = (Runnable) b;

Could answer 4 be phrased like this:

Code: Select all

Runnable r = (Runnable) b;

Because unlike previous answers these 2 statements are not related.

[admin]

No, the option is fine as it is. You may see options that don't make much sense in practice but that test your Java knowledge nevertheless.

[Mikhail Volkov]

Hello! Please, tell me - did I paint correct schema for to solve this question? http://joxi.ru/52aEWXTEa8G720
I think, that when I have correct schema it is easier to find correct answer.
But I'm not sure...

In the fact I find very strange - make Interface as Type of reference... For Why?

[admin]

Yes, your class diagram is correct.