how to write an El expression

Hi.
i am facing a very silly mistake can anyone figure out.

my jsp code is

<%
String[] names={"Chidanand","Aman","Saurabh","Rinku","Hardeep"};
request.setAttribute("attr",names);

%>
The names for the zeroth index is: ${attr[0]}

Now its not working ...... can anyone tell me whether i am correct or not. means is it correct to call the zeroth index of the string is by ${attr["0"]}

please tell me

Add this line to your jsp.
<%@ page isELIgnored="false" %>

Originally posted by Balasubramani Dharmalingam:
Add this line to your jsp.
<%@ page isELIgnored="false" %>

when i use this expression in my jsp it gives the Error message.

org.apache.jasper.JasperException: /second.jsp(4,0) Page directive has invalid attribute: isELIgnored

please tell me the above problem how to resolve this problem.

Which Server you are using?, check it out whether it supports JSP 2.0 from its Docs.If using Tomcat, try to use Tomcat 5.5.

Shrinivas

I am using tomcat 4.1 which i suppose it doesn't support EL. Please tell me.

Tomcat 4.1 supports JSP 1.2, In JSP1.2 there is no attribute "isELIgnored" for page directive it is added from JSP 2.0 only.

So use this
<c

ut val="${attr[0]}"/>
instead of ${attr[0]}

In JSP2.0 complained servers(eg.Tomcat 5.X) u can use like
<%@ page isELIgnored="false" %>

Attrbute vale is ${attr[0]}.

sorry use this
<c

ut value="${attr[0]}"/>
instead of ${attr[0]}

No i tried nothing comes up in the out put. even the error hasn't comeup this time nor the output came.
Please help me
I struck i dont understand what to do.............
cant proceed forward in HFSJ.

do u have jstl.jar and standard.jar in lib folder of application..?

If no means just copy these two jars from
$CATALINA_HOME/webapps/jsp-examples/WEB-INF/lib to
$CATLAINA_HOME/webapps/<your-application>/WEB-INF/lib

Originally posted by Balasubramani Dharmalingam:
do u have jstl.jar and standard.jar in lib folder of application..?

If no means just copy these two jars from
$CATALINA_HOME/webapps/jsp-examples/WEB-INF/lib to
$CATLAINA_HOME/webapps/<your-application>/WEB-INF/lib

Hi balasubramani.

I dont have jstl.jar and standard.jar in lib forlder i can't understand the cataline home could you tell me little wider so that i can find the two files and store at their respective place.

$CATALINA_HOME >>> where u have installed tomcat.

Example: c:\tomcat\

and add the below line to ur jsp.

<%@ taglib uri="http://java.sun.com/jsp/core" prefix="c" %>

Originally posted by Balasubramani Dharmalingam:
do u have jstl.jar and standard.jar in lib folder of application..?

If no means just copy these two jars from
$CATALINA_HOME/webapps/jsp-examples/WEB-INF/lib

the path C:\Tomcat 4.1\webapps
after this jsp-example folder is not in my dir structure. Instead of jsp-example. I have example folder. but if i follow the path through web-inf then i dont have the lib folder.
Please tell me what to do

get it from here http://www.axint.net/apache/java-repository/jstl/jars/jstl-1.0.jar
http://www.axint.net/apache/java-repository/taglibs/jars/standard-1.0.jar

Hi bala

I stored into the respective dir structure but the out put hasn't come up event the error is not their

This time it gives the error.
Error is :

This absolute uri (http://java.sun.com/jsp/core) cannot be resolved in either web.xml or the jar files deployed with this application

sorry replace
<%@ taglib uri="http://java.sun.com/jsp/core" prefix="c" %>
by <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>