//TestNode.java

public class TestNode
{
    public static void main(String[] args)
    {
        Node firstNode;
        firstNode = new Node(1);
        firstNode = new Node(3, firstNode);
        firstNode = new Node(5, firstNode);
        firstNode.setNext(firstNode.getNext().getNext());
        Node head = new Node(7, firstNode);
        head.getNext().setData(9);
        firstNode = null;

        Node currentNode = head;
        while (currentNode != null)
        {
            System.out.println(currentNode.getData());
            currentNode = currentNode.getNext();
        }
    }
}
/*  Output:
    7
    9
    1
*/