Calling bean using jsp

i've installed tomcat v3.3.2, and set the environment variable as normal procedure has mentioned..i have j2sdk 1.4.2_08, and recently has try to expirment calling java beans using jsp file located at D:\jakarta-tomcat-3.3.2\webapps\helloworld.jsp, and my bean file is located at D:\jakarta-tomcat-3.3.2\webapps\ROOT\WEB-INF\classes\com\bean\test\hellobean.class, and my hellobean.java source is :
package com.bean.test;
public class hellobean implements java.io.Serializable
private String Name;
public hellobean() {}
public String getName()
{return Name;}
public void setName(String Name)
{this.Name=Name;}
and my jsp file source:
<html>
<body>
<jsp:useBean id="hello" class="hellobean">
<jsp:setProperty name="hello" property="Name" value="Alan"/>
</jsp:useBean>
<h1>hello, <jsp:getProperty name="hello" property="Name"/></h1>
</body>
</html>
and when i run start.bat and type http://localhost:8080/helloworld.jsp, it gave me this error:
Error: 500
Location: /helloworld.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: hellobean
     at org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:140)
     at org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerator.java:59)
     at org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(JspParseEventListener.java:747)
     at org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventListener.java:176)
     at org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseEventListener.java:131)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:169)
     at org.apache.tomcat.facade.JasperLiaison.jsp2java(JspInterceptor.java:765)
     at org.apache.tomcat.facade.JasperLiaison.processJspFile(JspInterceptor.java:706)
     at org.apache.tomcat.facade.JspInterceptor.preInitCheck(JspInterceptor.java:493)
     at org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:413)
     at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:874)
     at org.apache.tomcat.core.ContextManager.service(ContextManager.java:790)
     at org.apache.coyote.tomcat3.Tomcat3Adapter.service(Tomcat3Adapter.java:64)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:793)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)
     at java.lang.Thread.run(Thread.java:534)
Root cause:
java.lang.ClassNotFoundException: hellobean
     at org.apache.tomcat.util.depend.DependClassLoader12Impl.loadClassInternal1(DependClassLoader12.java:205)
     at org.apache.tomcat.util.depend.DependClassLoader12Impl$1.run(DependClassLoader12.java:78)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.apache.tomcat.util.depend.DependClassLoader12Impl.loadClass(DependClassLoader12.java:76)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
     at org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:138)
     at org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerator.java:59)
     at org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(JspParseEventListener.java:747)
     at org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventListener.java:176)
     at org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseEventListener.java:131)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:169)
     at org.apache.tomcat.facade.JasperLiaison.jsp2java(JspInterceptor.java:765)
     at org.apache.tomcat.facade.JasperLiaison.processJspFile(JspInterceptor.java:706)
     at org.apache.tomcat.facade.JspInterceptor.preInitCheck(JspInterceptor.java:493)
     at org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:413)
     at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:874)
     at org.apache.tomcat.core.ContextManager.service(ContextManager.java:790)
     at org.apache.coyote.tomcat3.Tomcat3Adapter.service(Tomcat3Adapter.java:64)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:793)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)
     at java.lang.Thread.run(Thread.java:534)
can anybody help me? thanks

Hi
Same problem as above and did everything as posted here in the page, but still doesn't solve my problem.
Here's the bean :
package com.partha;
public class CounterBean
private int counter=0;
public int getCounter()
return counter;
public void incrementCounter()
counter++;
Here's the JSP Page :
<%@ page language="java" %>
<jsp:useBean id="session_counter" class="com.partha.CounterBean" scope="session"/>
<jsp:useBean id="application_counter" class="com.partha.CounterBean" scope="application" />
<html>
     <head>
          <title>Exercise 3</title>
     </head>
     <body>
          <%= session_counter.incrementCounter() %>
          <%= application_counter.incrementCounter()%>
          The number of times this session was accessed :
          <jsp:getProperty name="session_counter" property="counter" />
          <br>
          The number of times this page was accessed :
          <jsp:getProperty name="application_counter" property="counter" />
     </body>
</html>
I am still getting a classnot found exception . Here's what I am getting :
java.lang.ClassNotFoundException: com.partha.FormBean
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1407)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1252)
     at org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:133)
     at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:650)
     at org.apache.jasper.compiler.Node$GetProperty.accept(Node.java:507)
     at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:983)
     at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1025)
Please help me out ..

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