I know nothing about XML-RPC-Plz help

Question

First of all let me tell you that I am fairly new to XML and XML-RPC and how to parse and manipulate it in java.
So please prepare yourself for some stupid questions and spare me for that;P.
Here is my task, which I still have no exact idea that how to do it?
Ive been told that this is our XML-RPC request is something like this
<?xml version="1.0"?>
<methodCall>
   <methodName>examples.getStateName</methodName>
   <params>
      <param>
         <value><i4>41</i4></value>
         </param>
      </params>
   </methodCall>Reply will be something like this
<?xml version="1.0"?>
<methodResponse>
   <params>
      <param>
         <value><string>South Dakota</string></value>
         </param>
      </params>
   </methodResponse>and the language is JAVA.
Now please tell me that, if I am using Java as my programming language and someone tells me all that I specified above, will the communication occur through java programms as all the tutorials specify?
OR
Do I need to send the simple XML file to the server and will receive another XML response file in return ?
Another question
If Java does every thing, then what is the use of giving XML request and response format?

Answer 1

If Java does every thing, then what is the use of
giving XML request and response format?Java does not do everything . Here is an illustrative example.
You need to get information from the XYZ server in China and use it to calculate a formula. Once the formula is calculated, you need to send the calculation to a server in Denmark.
The server in China is a .NET application.
The server in Denmark is a Perl application.
Your server in Kuwait is written in Java.
You send the XML request to the .NET application.
The .NET application processes the request and sends you an XML response.
Your server then does something with the response and sends a second XML request to Denmark.
The Perl application in Demark processes your request.