Can't be changed.

At first I thought of this solution as well. However, take into account that the parameter is long for some reason. In real life applications this would be a code smell. This is not a safe cast as you have no control over the argument at runtime. At some point, a client may pass a long, as the type parameter is long, and then the casting will fail with an overflow of the long value.

description has been updated.

Java was updated on Codewars only a couple of months ago, so the solution hasn't had much time to collect votes.

I appreciate the feedback. I'll take time to evaluate the downfalls of the description to prepare a more comprehensive explaination of the task at hand.

Cheers.

That's why I immediately return False inside the loop. It stops execution and True is never returned.

oooooomg, what is this solution...? X/ (and why is it upvoted!?? X//)

The loop is not needed.