Putting code to my Jsf and Jsff pages and calling Java class

I want guidance on how to write simple code on adf pages
1. I have adf pages (.jsf and .jsff) where I have input text fields and command buttons, I want to put custom code on the command button such that when you click on any of the buttons at runtime, the code will be executed.
2. In my application, I have a java class which I have written, I need to click on any of the buttons at runtime, the application will call the java class and execute the class. Essentially, taking parameters from my adf page(s) (.jsf and .jsff) to the java class and also returning parameters after execution.

The version of my Jdev. is 11.1.2.3.0
Which docs?.... I will be grateful if you can point to the particular doc fro me.
1) Can you pls tell me in one of few sentences how to add method and set the actionListener property.
2) in question number 2, I am totally lost... Let me explain my self again to clarify the situation. In my adf page, I have a button and three input texts,my purpose is that at runtime, when a user click on the button, the values in the first two input texts will be passed to the java class as parameters, it is expected to use these parameters to process some form of calculations and return a value which I will place on the third input field.

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Hi guys,
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Hi there,
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HI,
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You want to dynamically create and compile Java classes.
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hey there,
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Hi Everybody!
Unfortunately, I find both in the web and in books not really advice. And slowly I have the feeling that something is either really lazy or I'm just incapable! :-)
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Edited by: Fools on Sep 13, 2010 5:48 AM

One approach is to have a backing bean for each JSF. Say you have shoppingPage.jsf, you could also have a managed bean called ShoppingPage. If this bean holds references to the other beans then it is easy to reference everything via the first bean.
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Otherwise it get a bit complicated because there may be several users on your website so you need to identify the objects relating to a particular user. Take a look at http://balusc.blogspot.com/2006/06/communication-in-jsf.html

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Duplicate message.
type persistance.DBManager not found
Add a Dependency on the Model project in the View project. In Project Properties select the Dependencies node to add dependencies.
Edited by: dvohra16 on Jun 19, 2011 8:37 AM

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Errors for FUNCTION GET_IMAGE:
LINE/COL ERROR
0/0 PL/SQL: Compilation unit analysis terminated
3/1 PLS-00311: the declaration of
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Regards,
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Joey

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Putting code to my Jsf and Jsff pages and calling Java class

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