So now are there any differences between J-Pop and K-Pop atau are these international musical genres about the same?

Dude...

Do anda know what J-pop and K-pop mean?

Japanese pop Muzik and Korean pop music. The biggest difference is the language. If anda pay attention to what they are actually saying. There's a difference.

One is Korean.
One is Japanese.
Derp xP

It's pop Muzik (although other genres fall under Kpop and Jpop too). Pop Muzik has a similar sound wherever anda are in the world, only difference being the language being spoken.

Sometimes a deciding factor in people's preference between Kpop and Jpop lies within the visual side of Muzik videos, because both genres put an emphasis on the visual portrayal of the Muzik whether that's set, dancing, outfits etc.

Correct me if I'm wrong; K-pop puts lebih emphasis on dance then J-pop does. And I think J-pop has...stranger visuals. I also believe that J-pop tends to be lebih cutesy than sexy where as K-pop is the reverse.

But this is only based on my (probably) limited observation.