private void readNext() //exclusively for token
      {
         current = next;
         if(current != null)
            buffer = new StringTokenizer(current);
         StringTokenizer temp = null;
         do
         {
            try 
            {
               next = myInFile.readLine();
            }
               catch (IOException e) 
               {
                  e.printStackTrace();
               }
            if(next != null)
               temp = new StringTokenizer(next);
         }
         while(!(next == null || temp.hasMoreTokens()));
      }