N-queen Problem using java simply explained

[@chitranshsinghchauhan6338]

Thanks bro really helped.

[@justdeepakstuff]

Efficiently explained.

[@AbhishekKumar-wy7bp]

Thanks Deepak :)

[@abhineshparihar]

Good work bro

[@AbhishekKumar-wy7bp]

Thanks Abhinesh. Hope you are doing well (y)