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I managed to do it with the next code but there must be an easier way.
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <c:if test="${fn:length(attachments) > 0}"> <c:forEach var="attachment" items="${attachments}" varStatus="loopCount"> <c:if test="${loopCount.count eq 1}"> attachment.id </c:if> </c:forEach> </c:if> 
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The get() method of the ArrayList class accepts an integer representing the index value and, returns the element of the current ArrayList object at the specified index. Therefore, if you pass 0 to this method you can get the first element of the current ArrayList and, if you pass list.
It is used for Catches any Throwable exceptions that occurs in the body and optionally exposes it. In general it is used for error handling and to deal more easily with the problem occur in program. The < c:catch > tag catches any exceptions that occurs in a program body.
The Jakarta Standard Tag Library (JSTL; formerly JavaServer Pages Standard Tag Library) is a component of the Java EE Web application development platform.
The < c:if > tag is used for testing the condition and it display the body content, if the expression evaluated is true. It is a simple conditional tag which is used for evaluating the body content, if the supplied condition is true.
You can access individual elements with the array [] operator:
<c:out value="${attachments[0].id}" /> This will work for arrays and lists. It won't work for maps and sets. In that case you must put the key of the element inside the brackets.
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Sets have no order, but if you still want to get the first element you can use the following:
<c:forEach var="attachment" items="${attachments}" end="0"> <c:out value="${attachment.id} /> </c:forEach> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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