How to invoke a 6 parameter java class within jsp

i have just begun to learned jsp and java recently, so have the question below:
Situation:
My boss asked me to do a project for doing online data mining.
He requested the thing below:
1. Write a webpage by jsp with some textfield or pull down meun to get the parameter for getting the opinion and the parameter needed for the java class.
2. When the user click the buttom in the website, then the java class have to be invoked.
Questions:
1. ask i put the .java in the server, i can simply use cmd and type the following command:
java -Xmx800M P05context 1 1 3 6 F01xyz.txt F10xyz.txt
which F01xyz is the prepared text file for the java class to read and the F10xyz.txt is the output file generated by the P05context.class
but i don't know how to invoke the P05context.class by jsp
My boss have suggested me two ways to do this:
a. write a java virtual class to execute the java program.
but i don't know how to write.
i think conceptualy will be like this :
public class run_java
public void run java(parameter1,parameter2....,parameter6)
//run the cmd command
//java -Xmx800M P05context 1 1 3 6 F01xyz.txt F10xyz.txt
b. write a javabean in the jsp. and i have try to use this code(at the end of the message:
but the tomcat server reply a internal error to me
how cani do ?
the jsp file-->
<jsp:useBean id="test" scope="session" class ="P05context" />
<html>
<head></head>
<body>
<% test.P05context(1,1,3,6,F01xyz.txt,F10xyz.txt); %>
</body>
</html>

I still don't see why the form (the origin of the request) has to be a JSP, As you say, it might be static but forms I've written have usually had some kind of menu framework arround them and other variables. Also if the input is invalid you usually want to re-present the form, with an error message and the fields pre-populated according to what the user put in before. That does require a JSP and you may as well use the same JSP for an empty, as for a rejected request.
the response to the form should be handled by a servlet. Both is HTML, but the
form is static, and the reply dynamic. Using the combination; a servlet to do the data processing and a JSP to format the results is more flexible in a number of ways. For example, suppose you find the need to present the data form in, say, Greek? You don't want the processing to be duplicated in English and Greek versions of the results JSP.
Suppose the boss wants to turn a graphics designer loose on your HTML. Don't want him mucking about with your processing code do you.
The servlet typically takes the function of controller in the model/view/controller paradigm.
Code in a servlet is cleaner, better formatted and easier to access with a debugger.

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>
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