the word (class) countablenoncountable?

[Tomara]

Hello

can we use the words (class)singular as un countable noun? I mean without using (a) article preceding it??

they hav class.

or is it countable only?

many thanks

[Torsten]

Class can be both countable as well as uncountable but the meanings are different:
I have a literature class on Friday. (I attend a literature course.)
These people have class. (They have style.)

TOEIC listening, photographs: After a car accident

[Tomara]

thanks Torsten

so the sentence : He has class
is not grammatically correct?
even in slang language?
bcause I read some times in the net the question:( do you have class?) is that slang?


another question pleas
if I make question
Do they have class?

would the answer be:
-yes I do
-yes I have

which one is the correct answer?

thank you

:)