I sense a sarcasm.nice java mate
When I use Eclipse, I do have a tendency to copy bits and pieces of code around, because it's faster than typing them out again. And in the project I was working on today, I did indeed intend to use print() rather than println(), as I had a bunch of things to print out all on the same line and it's easier and faster than concatenating them.
As for why I copied half of the print statement specifically... I have no idea. Probably while writing these lines:
Code:
System.out.print(n.getKey());
if(!q.isEmpty()) {
System.out.print(", ");
} else {
break;
}