XML VB.Net

Imports System.Xml
Imports System.Xml.Serialization
Imports System.IO
Public Class MainClass1
    Public Shared Sub Main()
        Dim settings As New XmlWriterSettings()
        settings.Indent = True
        settings.IndentChars = "    "
        Using writer As XmlWriter = XmlWriter.Create("books.xml", settings)
            writer.WriteStartElement("book")
            writer.WriteElementString("price", "9.9")
            writer.WriteEndElement()
            writer.Flush()
        End Using
    End Sub
End Class