Enthuware

You wrote in comment to first answer:

(Note that the absence of access control keyword in the method declaration in a class means package protected.)

Shouldn't it be "default" - which differs from "protected"?

Yes, it is default and it means "package protected", which is what the statement says as well.

Shouldn't 'public void compute();' be assumed to be an abstract method? and so should "void compute();"?

bniky1 wrote:Shouldn't 'public void compute();' be assumed to be an abstract method? and so should "void compute();"?

Yes, all non-static (and in Java 8, non-default) methods of an interface are abstract even if they are not explicitly declared to be so.

HTH,
Paul.

I don't understand why the book OCA Oracle Certified Associate - Jeanne Boyarsky doesn't contain this sentence:

An interface can have a static method but the method must have a body in that case.

admin wrote: ↑

Fri May 01, 2015 8:45 pm

Yes, it is default and it means "package protected", which is what the statement says as well.

So "package protected" means default, which is different than the normal "protected" modifier. I have never heard about "package protected".

There is no modifier named "package protected". This phrase is used just to explain the default accessibility. The default accessibility (which you get when you don't apply any modifier) is different from "protected" accessibility.

Hi,

I want to mention a small type.
The Fool interface spelled FooI, with and uppercase "i" not lowercase "L", in the code.

Sorry now I noticed that it supposed to be FooI.

what about the answer:
with the explanation: "Here, no such subclass of MyClass exists and so this definition will not compile."
But the question is about the declaration, not the definition, so it doesn’t really meet the conditions stated in the question.

You are right. The statement "(Assume that there is no other member in the interface.)" has now been added in this option.
thank you for your feedback!