Comp sci (java) regarding chains of nodes

[RedskinsFan]

I am currently stuck on this problem

 

Complete the following method that determines if two chains of nodes are equal, that is, they have the same strings in the same order. Note two empty chains are considered equal.

    public static boolean equals(Listnode<String> chain1, Listnode<String> chain2) {

I do not understand how i am supposed to compare the two chians without being able to use an index like you can for arrays.

ANy help would be greatly apprciated

[md65536]

I do not understand how i am supposed to compare the two chians without being able to use an index like you can for arrays.

How do you get access to the nodes in the lists?