// CSE 143, Winter 2009, Marty Stepp
// This class contains the example from lecture.

public class ListTest {
    public static void main(String[] args) {
        // list -> 10 -> 20
        ListNode list = new ListNode(10, new ListNode(20));
    
        // list -> 30 -> 10 -> 20
        ListNode newNode = new ListNode(30, list);
        list = newNode;
        
        // or, we could have written:
        // list = new ListNode(30, list);
        

        // list -> 30 -> 10 -> 20 -> 40
        list.next.next.next = new ListNode(40);
        System.out.println(list.data + " " + list.next.data + " " + 
                list.next.next.data + " " + list.next.next.next.data);
    }
}