Why are the results not the same?

Question

Please check the code
https://code.sololearn.com/c40QN88CEENe/?ref=app

Answer 1

because in palin2 you are using String[] and then you must compare it with equals()
//if (a-b-1<y && x[b] != x[a-b-1]){
if (a-b-1<y && ! x[b].equals(x[a-b-1])) {

Answer 2

~ swim ~ zemiak thanks a alot guys!