$[$Acu$$a$]$ Consider the following method that displays the contents of a stack implemented with a linked list $($i$.$e$.,$ LinkedStack from a previous module$)$:

public String toString$()\{$

LinearNode iter $=$ top;

String result $="($top$)"$;

while$($iter $!=$ null$)\{$

result $+=""+$ iter.getElement$().$toString$()$;

iter $=$ iter.getNext$()$;

$\}$

return result;

$\}$