...

Please pay me lots of money.

Assume you are use Tomcat server.

1. Create a directory under

$TOMCAT_HOME/webapps/your_project/WEB-INF/classes/your_bean
cd $TOMCAT_HOME/webapps/your_project/WEB-INF/classes/your_bean

vi YourBean.java
javac YourBean.java

2.
 cd ..

 vi YourServlet.java
 insert a line

import your_bean.YourBean;

javac YourServlet.java

3.

cd ..
vi web.xml

insert lines

<servlet>
        <servlet-name>YourServlet</servlet-name>
        <servlet-class>YourServlet</servlet-class>
</servlet>
...
<servlet-mapping>
        <servlet-name>YourServlet</servlet-name>
        <url-pattern>/servlet/YourServlet</url-pattern>
</servlet-mapping>

4
cd ../jsp

vi yourJSP.jsp

insert a line

<jsp:useBean id="yourJSP_ID" class="your_bean.YourBean" scope="page" />

5.
The URLs will be

http://your.host.domain:8080/your_project/servlet/YourServlet

http://your.host.domain:8080/your_project/jsp/yourJSP.jsp

Your can omitt :8080 if you know how to config Apache httpd.conf

Who do you think you are???!!!!!
Please learn the polite way.