Интересно будет выслушать рекомендации по поводу...

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;
import java.io.OutputStream;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
 
/*
 * NasdaqQuery.java
 *
 * Created on 12 August 2002, 14:24
 */
 
/**
 *
 * @author  Andrew Perepelytsya
 */
public class NasdaqQuery {
 
    private static final String SERVER_URI = 'http://quotes.nasdaq.com/quote.dll?page=xml&mode=stock&symbol=';
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        // create a SAX parser through JAXP
        SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
        
        // set content handler
        StockQuoteBuilder stockQuoteBuilder = new StockQuoteBuilder();
        parser.parse(sendRequest(args[0]), stockQuoteBuilder);
        
        StockQuote quote = stockQuoteBuilder.getStockQuote();
    }
    
    private static InputStream sendRequest(String symbol) throws MalformedURLException, IOException {
        URL url = new URL(SERVER_URI + symbol);
        HttpURLConnection conn = (HttpURLConnection)url.openConnection();
        
        return conn.getInputStream();
    }
}

import java.io.Serializable;
 
/*
 * StockQuoteBean.java
 *
 * Created on 12 August 2002, 19:34
 */
 
/**
 *
 * @author  Andrew Perepelytsya
 */
public class StockQuote implements Serializable {
    
    private String issueName;
    
    private String symbol;
    
    private String issuerWebSiteUrl;
    
    private String issuerLogoUrl;
    
    private double todaysHighPrice;
    
    private double todaysLowPrice;
    
    private double _52weekHighPrice;
    
    private double _52weekLowPrice;
    
    private double lastSalePrice;
    
    private double netChangePrice;
    
    private int shareVolumeQuantity;
    
    private double previousClosePrice;
    
    private double netChangePercent;
    
    private String tradeDateTime;
    
    /** Getter for property _52weekHighPrice.
     * @return Value of property _52weekHighPrice.
     */
    public double get_52weekHighPrice() {
        return _52weekHighPrice;
    }
    
    /** Setter for property _52weekHighPrice.
     * @param _52weekHighPrice New value of property _52weekHighPrice.
     */
    public void set_52weekHighPrice(double _52weekHighPrice) {
        this._52weekHighPrice = _52weekHighPrice;
    }
    
    /** Getter for property _52weekLowPrice.
     * @return Value of property _52weekLowPrice.
     */
    public double get_52weekLowPrice() {
        return _52weekLowPrice;
    }
    
    /** Setter for property _52weekLowPrice.
     * @param _52weekLowPrice New value of property _52weekLowPrice.
     */
    public void set_52weekLowPrice(double _52weekLowPrice) {
        this._52weekLowPrice = _52weekLowPrice;
    }
    
    /** Getter for property issueName.
     * @return Value of property issueName.
     */
    public String getIssueName() {
        return issueName;
    }
    
    /** Setter for property issueName.
     * @param issueName New value of property issueName.
     */
    public void setIssueName(String issueName) {
        this.issueName = issueName;
    }
    
    /** Getter for property issuerLogoUrl.
     * @return Value of property issuerLogoUrl.
     */
    public String getIssuerLogoUrl() {
        return issuerLogoUrl;
    }
    
    /** Setter for property issuerLogoUrl.
     * @param issuerLogoUrl New value of property issuerLogoUrl.
     */
    public void setIssuerLogoUrl(String issuerLogoUrl) {
        this.issuerLogoUrl = issuerLogoUrl;
    }
    
    /** Getter for property issuerWebSiteUrl.
     * @return Value of property issuerWebSiteUrl.
     */
    public String getIssuerWebSiteUrl() {
        return issuerWebSiteUrl;
    }
    
    /** Setter for property issuerWebSiteUrl.
     * @param issuerWebSiteUrl New value of property issuerWebSiteUrl.
     */
    public void setIssuerWebSiteUrl(String issuerWebSiteUrl) {
        this.issuerWebSiteUrl = issuerWebSiteUrl;
    }
    
    /** Getter for property lastSalePrice.
     * @return Value of property lastSalePrice.
     */
    public double getLastSalePrice() {
        return lastSalePrice;
    }
    
    /** Setter for property lastSalePrice.
     * @param lastSalePrice New value of property lastSalePrice.
     */
    public void setLastSalePrice(double lastSalePrice) {
        this.lastSalePrice = lastSalePrice;
    }
    
    /** Getter for property netChangePrice.
     * @return Value of property netChangePrice.
     */
    public double getNetChangePrice() {
        return netChangePrice;

import org.xml.sax.SAXException;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
import java.util.Stack;
import java.util.Collection;
import java.util.ArrayList;
 
/*
 * StockQuoteBuilder.java
 *
 * Created on 12 August 2002, 19:18
 */
 
/**
 *
 * @author  Andrew Perepelytsya
 */
public class StockQuoteBuilder extends DefaultHandler {
    
    private StockQuote quote;
    
    private Stack stack;
    
    private static final String NODE_EQUITY_QUOTE = 'equity-quote';
    private static final String NODE_ISSUE_NAME = 'issue-name';
    private static final String NODE_ISSUER_LOGO_URL = 'issuer-logo-url';
    private static final String NODE_ISSUER_WEB_SITE_URL = 'issuer-web-site-url';
    private static final String NODE_52_WEEK_HIGH_PRICE = 'fifty-two-wk-high-price';
    private static final String NODE_52_WEEK_LOW_PRICE = 'fifty-two-wk-low-price';
    private static final String NODE_LAST_SALE_PRICE = 'last-sale-price';
    private static final String NODE_NET_CHANGE_PRICE = 'net-change-price';
    private static final String NODE_NET_CHANGE_PERCENT = 'net-change-pct';
    private static final String NODE_PREVIOUS_CLOSE_PRICE = 'previous-close-price';
    private static final String NODE_SHARE_VOLUME_QUANTITY = 'share-volume-qty';
    private static final String NODE_TODAYS_HIGH_PRICE = 'todays-high-price';
    private static final String NODE_TODAYS_LOW_PRICE = 'todays-low-price';
    private static final String NODE_TRADE_DATETIME = 'trade-datetime';
    
    private static final Collection requiredNodes = new ArrayList();
    
    static {
        requiredNodes.add(NODE_52_WEEK_HIGH_PRICE);
        requiredNodes.add(NODE_52_WEEK_LOW_PRICE);
        requiredNodes.add(NODE_ISSUER_LOGO_URL);
        requiredNodes.add(NODE_ISSUER_WEB_SITE_URL);
        requiredNodes.add(NODE_ISSUE_NAME);
        requiredNodes.add(NODE_LAST_SALE_PRICE);
        requiredNodes.add(NODE_NET_CHANGE_PERCENT);
        requiredNodes.add(NODE_NET_CHANGE_PRICE);
        requiredNodes.add(NODE_PREVIOUS_CLOSE_PRICE);
        requiredNodes.add(NODE_SHARE_VOLUME_QUANTITY);
        requiredNodes.add(NODE_TODAYS_HIGH_PRICE);
        requiredNodes.add(NODE_TODAYS_LOW_PRICE);
        requiredNodes.add(NODE_TRADE_DATETIME);
    }
    
    public void characters(char[] values, int start, int length) throws SAXException {
        String node = null;
        if (!stack.empty()) {
            node = (String)stack.peek();
            
            if (!requiredNodes.contains(node)) return;
            
            if (node == NODE_ISSUE_NAME)
                quote.setIssueName(new String(values, start, length));
            
            else if (node == NODE_TODAYS_HIGH_PRICE)
                quote.setTodaysHighPrice(Double.parseDouble(new String(values, start, length)));
            
            else if (node == NODE_TODAYS_LOW_PRICE)
                quote.setTodaysLowPrice(Double.parseDouble(new String(values, start, length)));
            
            else if (node == NODE_52_WEEK_HIGH_PRICE) 
                quote.set_52weekHighPrice(Double.parseDouble(new String(values, start, length)));
            
            else if (node == NODE_52_WEEK_LOW_PRICE)
                quote.set_52weekLowPrice(Double.parseDouble(new String(values, start, length)));
                
            else if (node == NODE_LAST_SALE_PRICE)
                quote.setLastSalePrice(Double.parseDouble(new Str