examplestag.jsp
<%@ taglib prefix="foo" uri="/WEB-INF/exampletag.tld" %>
<% int num=5; %>
<br>
<pre>
<foo:loop index="i" count="<%=num%>">
body1here: i expr: <%=i%> i property: <jsp:getProperty name="i" property="value" /> 
  <foo:loop index="j" count="3">
  body2here: j expr: <%=j%> 
  i property: <jsp:getProperty name="i" property="value" />
  j property: <jsp:getProperty name="j" property="value" /> 
  </foo:loop>
</foo:loop>
</pre>