Export the data of a chart to Excel format

Question

I developed Histogram and Bar diagram in java Graphics2D pkg. I want to export the data of the chart in Excel format so that the file can be opened in Excel tool.

Answer 1

Is this something that might help....
<!-- Loop through the range to create a poplist -->
<%
java.util.ArrayList alDepartments = new java.util.ArrayList();
%>
<select name="DepartmentId">
<c:forEach var="listEntry" items="${bindings.DepartmentsListView1.rangeSet}">
<c:set var="thisdept" value="${listEntry.DepartmentId}"/>
<%
//<c:out value='${listEntry.DepartmentId}'/>
String strThisDept = ((Number) pageContext.getAttribute("thisdept")).toString();
System.out.println( strThisDept );
alDepartments.add( strThisDept );
%>
<c:choose>
<c:when test="${listEntry.DepartmentId eq bindings['DepartmentId'].attributeValue}">
<option value="<c:out value='${listEntry.DepartmentId}'/>" selected="true">
<c:out value="${listEntry.DepartmentName}"/>
</option>
</c:when>
<c:otherwise>
<option value="<c:out value='${listEntry.DepartmentId}'/>">
<c:out value="${listEntry.DepartmentName}"/>
</option>
</c:otherwise>
</c:choose>
</c:forEach>
<%
session.setAttribute("sessionalDepartments", alDepartments );
%>
</select>