import java.net.*;
import java.io.*;

public class URLConnectionAuthReader {
    public static void main(String[] args) throws Exception {
	  String username = "username";
	  String password = "password";
	  URL authurl = new URL(url);

	  Authenticator.setDefault(new MyAuthenticator(username, password));
	  URLConnection ac = authurl.openConnection();
	  BufferedReader in = new BufferedReader(
					  new InputStreamReader(
					  ac.getInputStream()));
	  String inputLine;

	  while ((inputLine = in.readLine()) != null)
		System.out.println(inputLine);
	  in.close();
    }

    protected static class MyAuthenticator extends Authenticator {
	  private String username, password;

	  public MyAuthenticator(String user, String pwd) {
		username = user;
		password = pwd;
	  }

	  protected PasswordAuthentication getPasswordAuthentication() {
		return new PasswordAuthentication(username, password.toCharArray());
	  }
    }
}