How to calculate the total of a sum in JSTL
foreach, jsp, jstl, sum
Solution
Use `<c:set>` to initialize the total variable, use `<c:forEach>` to iterate over list and use another `<c:set>` to add the iterated value to the total.
<c:set var="total" value="${0}"/>
<c:forEach var="article" items="${list}">
<c:set var="total" value="${total + article.price}" />
</c:forEach>
See also Iterate over elements of List and Map using JSTL <c:forEach> tag.
Problem
How can I realise this with JSP and JSTL? ``` int total = 0; for (Article article : list) { total += article.price; } ```