parse xml using dom java

Question

I have the bellow xml:

    
        
            wish
             


        

Answer 1

If you do not want to use the if statement you can use XPath to get the element you need directly.

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse("source.xml");
XPathFactory xPathfactory = XPathFactory.newInstance();
XPath xpath = xPathfactory.newXPath();
XPathExpression expr = xpath.compile("/*/listOfDocs/documents/document/topic");
NodeList nodes = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);

for (int i = 0; i < nodes.getLength(); i++) {
    System.out.println(nodes.item(i).getAttributes().getNamedItem("id"));
    System.out.println(nodes.item(i).getAttributes().getNamedItem("percentage"));
}

Please check GitHub project here.

Hope this helps.