Question

I do not have much experience with jsp.
In java I can do, but it is not good to open a block <% %>

Answer 1

You can use JSTL foreach to iterate over the HashMap.

<c:forEach var="type" items="${yourMap}">
   Key is ${type.key}
   Value is ${type.value}
</c:forEach>

NOTE: If you are using Tomcat, you need to explicitly copy JSTL lib to classpath. With other servers I know of default comes with JSTL.