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How to remove an element from XML document?

This example show you how to remove an element from XML document. First we load an XML file and display its original contents. After that we find the element <row>, and remove the <address> element from it.

package com.javacoderanch.example.jdom;

import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.output.XMLOutputter;
import org.jdom.output.Format;
import org.jdom.input.SAXBuilder;

import java.io.File;
import java.io.IOException;

public class JDOMRemoveElement {
    public static void main(String[] args) {
        SAXBuilder builder = new SAXBuilder();
        try {
            Document doc = builder.build(new File("userinfo.xml"));

            //
            // The lines below output the original userinfo.xml content
            //
            // <?xml version="1.0" encoding="UTF-8"?>
            // <rows>
            //   <row>
            //     <firstname>Alice</firstname>
            //     <lastname>Mallory</lastname>
            //     <address>Sunset Road</address>
            //   </row>
            // </rows>
            //            
            XMLOutputter out = new XMLOutputter(Format.getPrettyFormat());
            out.output(doc, System.out);

            //
            // Remove the address element from Alice information. First we
            // get the row element from the root element, and finally 
            // remove the address from the row. And the result will be:
            //
            // <?xml version="1.0" encoding="UTF-8"?>
            // <rows>
            //   <row>
            //     <firstname>Alice</firstname>
            //     <lastname>Mallory</lastname>
            //   </row>
            // </rows>
            //
            doc.getRootElement().getChild("row").removeChild("address");
            out.output(doc, System.out);
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}