Write the code necessary to convert the following sequence of ListNode objects:

list -> [7] -> ... -> [16] / 

Into this sequence of ListNode objects:

list -> [42] -> ... -> [42] / 

(In other words, set the value of every node to be 42.)

Assume that you are using ListNode class as defined in the textbook:

public class ListNode { public int data; // data stored in this node public ListNode next; // a link to the next node in the list public ListNode() { ... } public ListNode(int data) { ... } public ListNode(int data, ListNode next) { ... } }