book_database.xml

<?xml version="1.0" encoding="UTF-8"?>
<Books>
    <Book>
        <Author>Patrick Naughton</Author>
        <Title>The Java Handbook</Title>
        <ISBN>0-07-882199-1</ISBN>
        <Amount>3</Amount>
    </Book>
    <Book>
        <Author>Robert C. Martin</Author>
        <Title>Clean Code</Title>
        <ISBN>978-0132350884</ISBN>
        <Amount>2</Amount>
    </Book>
</Books>