Changing XML values in Android/Java

I want to take an XML file as input which contains the following:

<?xml version='1.0' encoding='utf-8' standalone='yes'>
<map>
    <int name="count" value="10" />
</map>

and, read and change the value from 10 to any other integer value.

How can I do this in Android/Java. I'm new to Android and Java and all the tutorials available on the internet are way too complicated.

Thank You