When you type “hello, world” in Clojure REPL, why does it say 'nil'?

Question

I typed this into Clojure REPL (using the enclojure Netbeans plugin):

user=> \"hello, world\"
\"hello, world\"
nil

What\'s the nil about

Answer 1

Can't reproduce...

It doesn't do that for me on Clojure 1.0.0-

$ java -cp clo*.jar clojure.lang.Repl
Clojure 1.0.0-
user=> "hello, world"
"hello, world"
user=>