doubly linked-list

Question

Can someone review my code? if there were bugs...
https://code.sololearn.com/caWTDruIXDvG/#java

Answer 1

It looks pretty awesome codewise but in my opinion there are two issues.
0. if you implent the list interface you could even use your list as argument for library frameworks that accept any list.
1.If you programmed it generic you could even use it as a container for every class.