fixed output of numeric arrays to be space-separated

    private String toString(int[] iarray)

    {

        StringBuffer sb = new StringBuffer();

        StringBuilder sb = new StringBuilder();

        for (int i : iarray)

        {

            sb.append(Integer.toString(i));

            sb.append(",");

            sb.append(" ");

        }

        return sb.substring(0, sb.length() - 1); // trim trailing comma

        return sb.substring(0, sb.length() - 1); // trim trailing space

    }

    private String toString(Integer[] iarray)

    {

        StringBuffer sb = new StringBuffer();

        StringBuilder sb = new StringBuilder();

        for (Integer i : iarray)

        {

            sb.append(i.toString());

            sb.append(",");

            sb.append(" ");

        }

        return sb.substring(0, sb.length() - 1); // trim trailing comma

        return sb.substring(0, sb.length() - 1); // trim trailing space

    }

}