1 
   2 public class Aggregate {
   3 
   4   private Aggregate();
   5 
   6   private static double hypot(double arg0,
   7     double arg1);
   8 
   9   public static void main(java.lang.String[] arg0);
  10 
  11   public boolean equals(Aggregate arg0);
  12 
  13   public int hashcode();
  14 }