How to do integer arithmetic in JSTL?

Question

I have a foreach loop where I am presenting database results and showing them to the user in 'chunks' (similar to search engine). At the bottom, I also want to have a line of page numbers which refer to the chunks (e.g. 1 2 3 4 ...), and this is where I am having a problem. An integer division in the c:out or in the forEach loop seems to switch JSTL into floating point arithmetic mode, and that results in the <c:out> below producing non-integer values: 1.0 2.0 3.0 .... Is there a way to force it to do integer arithmetic? Or, possibly to format what c:out produces to drop the ".0" part?
Here's the code:
        <c:forEach var="index"
                  begin="0" end="${searchResultSize}" step="${chunkSize}">
                    <!-- ...snip... build anchor tag ... -->
                    <c:out value="${(index/chunkSize)+1}"/></a>
        </c:forEach>I modified the above to take the calculation our of the c:out, but had same result (1.0 2.0 3.0, etc):
            <c:forEach var="index"
                  begin="0" end="${searchResultSize/chunkSize}" step="1">
                     <!-- ...snip... build anchor tag ... -->
                    <c:out value="${index+1}"/></a>
            </c:forEach>

Answer 1

To format numbers you use the format tag library, also included with the JSTL
<fmt:formatNumber value="${(index/chunkSize)+1}" type="number" maxFractionDigits="0" />
Cheers,
evnafets