Basic JSP question

Hi,
I'm starting to use JSP, and I have a few basic questions. I've found some tutorials online, such as the J2EE tutorial, and some others through Google, that have been helpful. However, after reading some tutorials, I still have a basic question:
If I have a Java class file, can I access that class' methods through my web page using JSP, and then retrieve information from that class?
For example, if I have a class MyClass, a method myMethod, and an ArrayList<String> arr, would I be able to do something like this from my web page?
MyClass.myMethod();
MyClass.arr.get(0);If anyone can give me some advice, or possibly link me to a tutorial that will explain this, I will be very appreciative.

Yes you can, here is a quick example of how you could do that.
<%@ page language="java" contentType="text/html"
pageEncoding="ISO-8859-1"%>
<jsp:useBean id="myObject" scope="session" class="mypackage.MyClass" />
<html>
<body>
<%
myObject.myMethod();
%>
<%= myObject.arr.get(0) %>
</body>
</html>

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Hi
Answers to your questions ->
1. http://help.sap.com/saphelp_srm50/helpdata/en/e9/d0fc3729b5db48e10000009b38f842/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/74/ec7b3c91c1eb1ee10000000a114084/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/55/d77c3c3fd53228e10000000a114084/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/77/e97b3c91c1eb1ee10000000a114084/frameset.htm
2. Provided the necessary role is given to the Purchaser (Buyer) in the System.
a) Yes
b) Yes
3. http://help.sap.com/saphelp_srm50/helpdata/en/e5/f5e938b4ece075e10000000a114084/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/70/00c73a584611d6b21700508b5d5211/frameset.htm
4. http://help.sap.com/saphelp_srm50/helpdata/en/2c/867d3ca2156c6ae10000000a114084/frameset.htm
The vendor ORG has to be seperately created through trasaction PPOCV_BBP before replicating the Vendors from the R/3 System.
http://help.sap.com/saphelp_srm50/helpdata/en/70/00c73a584611d6b21700508b5d5211/frameset.htm
5. http://help.sap.com/saphelp_srm50/helpdata/en/42/d3b671ba67136fe10000000a1553f7/frameset.htm
6. http://help.sap.com/saphelp_srm50/helpdata/en/29/d586398dcfd74fe10000000a11402f/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/05/9b8139437eac2ae10000000a11402f/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/f5/b4bcdac7c40c4dba53e3695d18236c/frameset.htm
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8.
http://help.sap.com/saphelp_srm50/helpdata/en/d3/4b9c3b122efc6ee10000000a114084/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/18/db183d30805c59e10000000a114084/frameset.htm
9.
You can use the following three routines to download locations from the backend system and store them as business partners in SAP Enterprise Buyer.
BBP_LOCATIONS_GET_ALL
To get all the location numbers from each backend system that is connected
BBP_LOCATIONS_GET_FROM_SYSTEM
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BBP_LOCATIONS_GET_SELECTED
To get selected locations
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For more information, see SAP Note 563180 Locations for EBP 4.0 plant replication
http://help.sap.com/saphelp_srm50/helpdata/en/62/fb7d3cb7f58910e10000000a114084/frameset.htm
http://help.sap.com/saphelp_srm50/helpdata/en/77/e97b3c91c1eb1ee10000000a114084/frameset.htm
10. PPOCA_BBP(Create) / PPOMA_BBP(Change) / PPOSA_BBP(Display).
Regards
- Atul

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saves a few lines..
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Bruce Eckel's Thinking in Java (Available online.)
Joshua Bloch's Effective Java
Bert Bates and Kathy Sierra's Head First Java.
James Gosling's The Java Programming Language. Gosling is
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