> In the end I got dinged for not using the Java Arrays library for copying an array (used a manual for loop)... This doesn't sound like a smart interviewer.

> In the end I got dinged for not using the Java Arrays library for copying an array (used a manual for loop)... This doesn't sound like a smart interviewer. They are testing your knowledge of the library ahead of understanding what's going on. I'm pretty sure I've interviewed some people who could pull out Array.Copy for the interview but couldn't tell you that it does pretty much the same as the for loop, and that is much more alarming.