test question

[chrisben]

Run into a question in a test recently, not quite sure what is the right answer? Any suggestion?

Thanks


What kind of variable do you use if you need to share a variable from one instance of a class to the next?

1 volatile
2 register
3 static
4 protected
5 auto

[Return 0]

This is an easy one. You should try and figure this out first.

[chrisben]

i think only static make sense to have a single variable shared by the same type of classes. but the sentence of "from one instance of a class to the next" confuse me a little bit. not sure whether that is what it asks me.
thanks

[helios]

It's not very well redacted, but yes, the answer is 3.