How can i parse this xml to a object model

     <categories>
        <category_name></category_name>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
    <subcategories></subcategories>
</categories>

How can i parse this xml to a object model ,it has some subcategories