How Do I read a String as an XML and reply?

Hello there to everyone reading my Post !
I am entering a total new subject in my learning about Java Programming, where I will need to interact with a server, I was wondering If somebody could help me with a Question I have; here it is:
A server provided me a Socket, (and that is of course an IP address and a Port), And I am supposed to connect to that server using a Java program that connects to servers using a Socket class, then I am supposed to send a String representing a valid XML, and then the server replies me With another String representing a valid XML which I am supposed to store in a String type.
Is this exact write/read operation possible? If so, could someone please give me some code to solve this problem?
PD: The server Does this operation only: recieve/send Strings. as its called transactional switch.
Sorry If I have put this Query in the Wrong Forum, I have put it in Networking also, just in case. Excuse me for any inconveniences.
Message was edited by:
BCE_Jose

I am supposed to send a String representing a valid XML.what do you mean? do you want to send value that you get from XML doc or what? cos i don't understand about "String representing a valid XML". is it XML document exists or not? can you give us more detail about what you asking for.

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