Overriding Methods Declared in Interface

[Ashley Bye]

The exam questions at the end of Ch5 in the OCA8 book asks what is and isn't true about interfaces.

interface HasVocalChords() {
    public abstract void makeSound();
}

One of the possible answers is "A class that implements HasVocalChords must override the method makeSound()". This option is considered incorrect, with the explanation that an abstract class doesn't need to implement the method.

My question, therefore, is: in the exam, should I assume that in any circumstance, unless specifically stated otherwise, the word "class" refers to both concrete and abstract classes?

[Paul Clapham]

Ashley Bye wrote:My question, therefore, is: in the exam, should I assume that in any circumstance, unless specifically stated otherwise, the word "class" refers to both concrete and abstract classes?

Absolutely. Don't make any assumptions which aren't warranted by the question's wording.