class testNode{
  public static void main(String[] args){
    Node node1 = new Node("Daniel");
    Node node2 = new Node("Beyer");
    Node node3 = new Node("Olsen");
    Node node4 = new Node("Kristiansen");



    Node head = node1; //head = den foerste i listen!
    Node tail = node4;

    node1.settNeste(node2);
    node2.settNeste(node3);
    node3.settNeste(node4);

    node1.settNeste(null);

    Node iterNode = node1;
    while(iterNode != null){
      System.out.println(iterNode.hentData());
      iterNode = iterNode.hentNeste();
    }

  }

}

class Node{
  Node neste;
  String verdi;

  public Node(String verdi){
    this.verdi = verdi;
  }

  public void settNeste(Node n){
    neste = n;
  }

  public Node hentNeste(){
    return neste;
  }

  public String hentData(){
    return verdi;
  }
}