The exam questions at the end of Ch5 in the OCA8 book asks what is and isn't true about interfaces.
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?
"Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain