Kotlin is a statically typed, general-purpose programming language with type inference. The syntax is clean and easy to understand. Kotlin is interoperable with existing Java code, which means that it can be used to develop Android applications.
XML is a markup language that is used to store data. It is human-readable and can be read by machines. XML is a popular choice for storing data because it is platform-independent and can be easily translated into other formats.
Kotlin and XML can be used together to parse and serialize data. In this article, we will learn how to use Kotlin to parse and serialize XML data.
Parsing XML with Kotlin is simple and easy. Kotlin has a built-in library for XML processing, which makes it easy to parse XML data.
First, we need to import the XML processing library:
import kotlin.xml.*
Then, we can parse XML data using the parse
function:
val xmlData = """
<books>
<book>
<title>Kotlin in Action</title>
<author>Dmitry Jemerov</author>
<year>2017</year>
</book>
<book>
<title>Effective Java</title>
<author>Joshua Bloch</author>
<year>2008</year>
</book>
</books>
""".trimIndent()
val books = xmlData.parseAsXml().books.book
for (book in books) {
println("Title: ${book.title}")
println("Author: ${book.author}")
println("Year: ${book.year}")
println()
}
In the example above, we first create a String containing XML data. Then, we use the parseAsXml
function to parse the XML data. The parseAsXml
function returns an XmlDocument
, which contains a books
element. The books
element contains a book
element for each book in the XML data.
We use a for
loop to iterate over the book
elements. For each book
element, we print the title, author, and year.
Kotlin also makes it easy to serialize XML data. We can use the toXmlString
function to convert XML data to a String:
val xmlData = books.toXmlString()
The toXmlString
function takes an XmlDocument
and converts it to a String. In the example above, we use the toXmlString
function to convert the books
element to a String.
Kotlin and XML are a great combination for parsing and serializing data. Kotlin makes it easy to parse and serialize XML data.