import java.io.*;
import java.net.*;
import java.nio.charset.Charset;

public class HelloWorld {

    public static void main (String[] args) {

        URL url;
        HttpURLConnection connection;
        BufferedReader readingData;

        String requestSite = "http://www.cbr.ru/scripts/XML_daily.asp";
        String responseLine;
        String responseData = null;

        try {
            url = new URL(requestSite);

            connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");

            readingData = new BufferedReader(new InputStreamReader(connection.getInputStream()));

            while ((responseLine = readingData.readLine()) != null) {
               responseData += responseLine;
            }

            readingData.close();

            System.out.println(responseData);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}