Java Practice-It || 16.23 linkedNodes23 || ListNodes, LinkedLists

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

list [7] ... [3] /
Into this sequence of ListNode objects:

list [7] ... [42] /
(In other words, set the value of the last 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) { ... }
}

Problem: