Is it, though? I think real cases might frequently be less complicated, in Java at least. As is evident from the candidate experiences that the original comment

Is it, though? I think real cases might frequently be less complicated, in Java at least. As is evident from the candidate experiences that the original commenter describes, there's a lot more complexity in strings than is immediately obvious. I agree with 'Gunax that that's likely to be tripping people up - as I mentioned in the comment to which you're replying, albeit in a somewhat recent edit, this has not nothing to do with why our own similar interview problems don't revolve around any operation on strings.