JSP newbie: My first JavaBean

Question

Hey guys. This is my first time with JSP, and I'm trying to create a JavaBean. I seem to be getting an error when I try to set up the following:
I have a folder called "test" which is the root of my app. Under this directory, I have a folder called "WEB-INF", then a folder called "classes" then the folder called "mathy". Under "mathy" I have a the java file called average.java along with the compiled class file.
The code for average.java is as follows:
package mathy;
import java.io.Serializable;
public class average implements Serializable {
private double total = 0;
public average(double n1, double n2, double n3) {
total = n1 + n2 + n3;
total = total / 3;
public double getAverage() {
return total;
then under the original "test" folder, I have a jsp page called "exp-1.jsp" with the following code:
<% mathy.average av1 = new mathy.average(34.4, 56.1, 694.3); %>
Now, I'm not trying to execute any methods, just trying to see if a bean can be made. But now luck. Can anyone help? Thanks, I really appreciate it.
I get the following error by the way with Tomcat Version 4.0-b5:
A Servlet Exception Has Occurred
org.apache.jasper.JasperException: Unable to compile class for JSPC:\jakarta-tomcat-4.0-b5\work\localhost\test\exp_0002d4_jsp.java:55: Class mathy.average not found.
mathy.average av1 = new mathy.average(34.4, 56.1, 694.3);
^
C:\jakarta-tomcat-4.0-b5\work\localhost\test\exp_0002d4_jsp.java:55: Class mathy.average not found.
mathy.average av1 = new mathy.average(34.4, 56.1, 694.3);
^
2 errors

Answer 1

it's fine to put package mathy. I use this method all the time. After that, you have to put this line at the top of your jsp page <jsp:useBean id="name_of_bean" scope="application" class="mathy.NameOfYourClass" />.
If you can't have your last modified jsp file, try the following steps:
1) Shutdown Tomcat and Start Tomcat again.
2) Delete your root directory on tomcat\work\your_root_directory
3) Close your IDE and open again.
Any one of the steps above will be abled to solve your problems. Otherwise, just let me know.
Good Luck.