public void add(person p)
 {
     if (first.p.name == null)
     {
         first = new PersonNode(p);
     }
     else
     {
         PersonNode curr = first;
         while (curr.hasNext())
         {
             curr = curr.next;
         }
         curr.next = new PersonNode(p);
     }
 }
 public void getPerson(String name)
 {
     PersonNode curr = first;
 }
 public PersonLinkedList(person p)
 {
     first = new PersonNode(p);
 }
 public PersonLinkedList()
 {
     first = new PersonNode();
 }