Not a kata issue, it's a problem with your code, your loop never runs. Look at it carefully.

I see you're new here, but follow this guidelines:
When you think something is broken, first check how many completions there already are in the language you're using. In this case:

Java Completions	1653

So the most probably culprit when something doesn't work is in this case, your code. Then when in doubt, use Question label and post your code as I told you so someone can check where the problem is.

I've tried it and it worked just fine, could you post your code using proper markdown and marking your post as having spoiler content?