public class Link
{
  private Object element=null;
  private Link next=null;
  public Link(Object obj,Link nextObj)
  {
    element=obj;
    next=nextObj;
  }

  public Link(Link nextObj)
  {
    next=nextObj;
  }

  public Link next()
  {
    return next;
  }

  public Link setNext(Link nextObj)
  {
    return next=nextObj;
  }

  public Object element()
  {
    return element;
  }

  public Object setElement(Object obj)
  {
    return element=obj;
  }
}