GetNodeValue and SetNodeValue not getting the whole content

Question

Hi!
I've been having some problem with GetNodeValue and setNodeValue and I was wondering if anyone can help me...
for example, Let's say a portion of my XML Document has:
<Buyer>Tommy Jones</Buyer>
<Item> Used Cars </Item>
nodes... and I'm trying to do getNodeValue() on Buyer... and it returns only a portion of the Node Value... "Tommy Jo". I had to make a ChildNodeList and append all the child nodes Values to get the full content "Tommy Jones".
and when I do a setNodeValue(), trying to replace Item, with Value, "New", I would get an output like: "Newd Cars" or even "Newsed Cars"... very inconsistent even though I used same method at different places.
Question 1: Shouldn't getNodeValue() return the whole actual value, rather than making me go through "imaginary" childNodes (that I apparently don't see anywhere) to append the text to get the full value? So I guess my first question is why is this happening?
Question 2:
What can I do besides going through all the Child elements under Buyer and Item to append/remove to get the full content using getNodeValue()and setNodeValue() methods?
Thank you so much for your time and help.

Answer 1

Document document;
document.getElementByTagName("tagName").item(0).getFirstChild().getNodeValue();
returns the text value in a element.
document.getElementByTagName("tagName").item(0).getFirstChild().setNodeValue(String nodeValue);
sets the text value of a element node.