Looping through an ArrayList within a HashMap using JSTL
Many applications require working with complex data structures such as HashMaps containing ArrayLists. Iterating over such structures effectively is essential for data manipulation and display. JSTL provides a powerful tag library that simplifies this task.
Understanding JSTL Iteration
JSTL's
Iterating the HashMap and ArrayList
In your specific case, you need to iterate over the LinkedHashMap
<code class="html"><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <c:forEach items="${myMap}" var="entry"> <c:forEach items="${entry.value}" var="item"> <!-- Process each item in the ArrayList --> </c:forEach> </c:forEach></code>
Understanding the Code
The outer
Additional Considerations
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