"Der ist nett, nicht?" would mean "He/This guy is nice/friendly, isn't he?""Der ist nicht nett" (different grammar) would mean "He/this guy isn't nice/friendly".
What is the point?orWhat is the meaning?
Ist der beste koch der Welt translates as is the world's best chef/cook.
O Fortuna from Carmina Burana
What is the key for ourpcgamenet.