$4.$Write statements to remove the middle object from a arrayList$/$list and place it at the end.

$($Note: You can use the part of the code from your textbook$/$lecture slide OR you can pseudocode$/$code your logic using ArrayList$/$List$).$

$5.$ Write an algorithm to reverse a singly linked list, so that the last element become the first and so on$.$ Do NOT use Deletion $-$ rearrange the pointers.