That's true. I just did not find any simple working version for Java, wanted to practice here at CodeWars.

Hi mwaslki,

I see what you mean. I'm the author of the original Kata Ruby and JavaScript versions. A new Kata goes through a beta process before being published. Alternative language versions do not seem to. It would be great if there was an approval process whereby original Kata authors could accept/reject language forks, but that doesn't seem to exist yet.

I've updated the examples for the Haskel and Java versions. Thank you for pointing this out, and I hope that helps.

Are the examples not explicit?

greet("JACK") # returns "Hello Jack!"

Same problem with Java.