Simple way to Count Number of XML Elements in Java • Crunchify

packagecom.crunchify;

 

importjava.io.BufferedReader;

importjava.io.File;

importjava.io.FileInputStream;

importjava.io.FileNotFoundException;

importjava.io.IOException;

importjava.io.InputStreamReader;

importjavax.xml.parsers.DocumentBuilderFactory;

importorg.w3c.dom.Document;

importorg.w3c.dom.NodeList;

 

/**

* @author Crunchify.com

*/

 

publicclassCrunchifyCountXMLElements{

 

    publicstaticvoidmain(String[]args)throwsIOException{

        StringinputFile=“https://cdn.crunchify.com/wp-content/uploads/code/Company.xml”;

 

        try{

            // Reads text from a character-input stream

            BufferedReader reader=newBufferedReader(newInputStreamReader(System.in));

 

            // Defines a factory API that enables applications to obtain a parser that produces DOM object trees from XML documents.

            DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();

 

            // The Document interface represents the entire HTML or XML document. Conceptually, it is the root of the document tree, and provides the primary access to the document’s data.

            Document doc=factory.newDocumentBuilder().parse(inputFile);

 

            // Get input element from user

            System.out.print(“Enter element name: “);

            Stringelement=reader.readLine();

 

            // Returns a NodeList of all the Elements in document order with a given tag name and are contained in the document.

            NodeList nodes=doc.getElementsByTagName(element);

            System.out.println(“nHere you go => Total # of Elements: “+nodes.getLength());

 

        }catch(Exceptione){

            System.out.println(e);

        }

    }

}