public class Driver {
     public static void main(String [] args) {
          List aList = new List();
          aList.display();
     }
}

public class List {
    private Node head;
    public List() {
        final int max = 3;
        int i;
        head = null;
        Node aNode = new Node(0);
        for (i = 0; i < max; i++) {
            aNode.num = i;
            add(aNode);
            aNode.next = null;
        }
    }
    public void add(Node aNode) {
        Node temp;
        if (head == null)
            head = aNode;
        else {
            temp = head;
            while (temp.next != null)
                temp = temp.next;
            temp.next = aNode;
        }
    }
    // Assume it displays the list properly from start to finish
    public void display() { 
        Node temp = head;
        while (temp != null) {
            System.out.print(temp);
            temp = temp.next;
        } // while loop                                                              
    } // display()                                                                  
} // Class List

public class Node {
    public int num;
    public Node next;
    public Node(int aNum) { num = aNum; next = null; }
    public String toString() { return(Integer.toString(num)); }
}