What does the following code do$?$ Is it correct? If not Correct it$.$

private void Guess $($E e$,$ Node predecessor, Node successor$)\{$

Node newest $=$ new Node $,$ null, null$)$;

predecessor.setNext$($newest$)$;

newest.setPrev$($predecessor$)$

successor.setPrev$($newest$)$;

newest.setNext$($successor$)$;

size$++$; $\}$

Write an algorithm to check equality of two link lists.