XML traversing to find the node name

Question

Following is a string containing an XML file that specifies folder structure

     String xml ="<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
                    "<folder name=\"c\">" +
                        "<folder name=\"program files\">" +
                            "<folder name=\"uninstall information\" />" +
                        "</folder>" +
                        "<folder name=\"users\" />" +
                    "</folder>";

If user enter initial letter of the folder the method must return the folder name (following is part of it method i have tried)

DocumentBuilder builder = 
    DocumentBuilderFactory.newInstance().newDocumentBuilder();
            InputSource src = new InputSource();
            src.setCharacterStream(new StringReader(xml));
            Document doc = builder.parse(src);          
            List<String> listObj = new ArrayList<String>();
            if(doc.getElementsByTagName("folder").item(0) != null){
    System.out.println(doc.getElementsByTagName("folder").item(0).getNodeValue());}

But in my method i always get null. How do I iterate and find out the folder name?

Jens · Accepted Answer · 2017-03-29 09:47:24Z

1

name is an Attribute of the Folder tag, so you have to use the following code:

System.out.println(doc.getElementsByTagName("folder").item(0).getAttributes().getNamedItem("name").getNodeValue());

answered Mar 29, 2017 at 9:47

Jens

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