class EdgeLink
   {
   public String sData;   	// name of neighbor
   public double weight; 	// weight of edge connecting to neighbor
   public EdgeLink next;        // next link in list
// -------------------------------------------------------------
   public EdgeLink(String id, double w,  EdgeLink newNext) // constructor
      {
      sData = id;
      weight = w;
      next = newNext;
      }
// -------------------------------------------------------------
   public void displayLink()      // display ourself
      {
      System.out.print("{" + sData + " " + weight + "} ");
      }
   }  // end class Link