diff -u -r1.2 -r1.3
--- WeightedList.java	9 Feb 2009 19:43:13 -0000	1.2
+++ WeightedList.java	11 Feb 2009 23:31:42 -0000	1.3
@@ -12,7 +12,7 @@

  * memory and speed to an object of <tt>ArrayList</tt> type.
  *
  * @author D. Onoprienko

- * @version $Id: WeightedList.java,v 1.2 2009/02/09 19:43:13 onoprien Exp $

+ * @version $Id: WeightedList.java,v 1.3 2009/02/11 23:31:42 onoprien Exp $

  */
 public class WeightedList<E> extends ArrayList<E> {
   

@@ -63,7 +63,7 @@

 
   /** Returns weight of the element with the specified index. */
   public double getWeight(int index) {

-    return _w[index];

+    return (_w == null) ? 1. : _w[index];

   }
 
   /** Returns weight of the specified element. */