Parses ECB €-exchange rates feed into objects arraylist-list <EuroExchangeRate> "ratesList"

ERParser.java

package exchangeRateApp;

import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import javax.swing.text.html.HTMLDocument.HTMLReader.IsindexAction;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class ERParser {
	public static void main(String[] args) throws Exception {
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		
		DocumentBuilder builder = factory.newDocumentBuilder();
		
		InputStream input = new URL("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml").openStream();
		
		Document document = builder.parse(input);
		
		List<EuroExchangeRate> ratesList = new ArrayList<>();
				
		NodeList nodeList = document.getDocumentElement().getChildNodes();
		
		for (int i = 0; i < nodeList.getLength(); i++) {
			if (nodeList.item(i).getNodeName() == "Cube") {
				NodeList upperNodes = nodeList.item(i).getChildNodes();
				
				for (int k = 0; k < upperNodes.getLength(); k++) {
					Node upperNode = upperNodes.item(k);
					if (upperNode instanceof Element) {
						String updateTime =  upperNode.getAttributes().getNamedItem("time").getNodeValue();
						NodeList childNodes = upperNode.getChildNodes();
						for (int j = 0; j < childNodes.getLength(); j++) {
							Node node = childNodes.item(j);
							if (node instanceof Element) {
								EuroExchangeRate exRate = new EuroExchangeRate ();
								exRate.time = updateTime;
								exRate.currency = node.getAttributes().getNamedItem("currency").getNodeValue();
								exRate.rate = node.getAttributes().getNamedItem("rate").getNodeValue();
								ratesList.add(exRate);
							}
						}
					}
				}
			}
			
		}
		// test output
		//for (EuroExchangeRate exchangeRate : ratesList) {
		//	System.out.println(exchangeRate);
		//}
	}
}

EuroExchangeRate.java

package exchangeRateApp;

class EuroExchangeRate {
	String time;
	String currency;
	String rate;
	
	public String toString() {
		return "EUR to "+currency+": "+rate+ " (date: "+time+")";
	}	
}