eval-expression that shows the current character

Question

What is the correct eval expression which shows the current character in the message area?

I tried the following but they don't work.

(message (char-after))
(message '(char-after))
(message 'char-after)
(message char-after)

Answer 1

Just convert the result of (char-after) to string:

(message (string (char-after)))