15_simple-complex.xml

<?xml version="1.0" encoding="UTF-8"?>
<library xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="library.xsd">

    <!-- Simple Type Example -->
    <book>
        <title>Introduction to XML</title>
        <author>John Doe</author>
        <publicationYear>2022</publicationYear>
        <price>29.99</price>
    </book>

    <!-- Complex Type Example -->
    <bookstore>
        <book>
            <title>Web Development Basics</title>
            <author>Jane Smith</author>
            <publicationYear>2021</publicationYear>
            <details>
                <genre>Programming</genre>
                <pages>300</pages>
            </details>
        </book>
    </bookstore>

</library>

<!-- 
- The <price> element is defined as a simple type with the type xs:decimal.
- The <details> element is defined as a complex type with a sequence of child elements (<genre> and <pages>).
- The root element <library> allows a choice between <book> and <bookstore>.
- The <book> element is defined as a complex type with a choice of child elements including the simple type <price> and the complex type <details>.
- The <bookstore> element is defined as a complex type allowing a collection of <book> elements. 
-->