Java by API/java.net/PasswordAuthentication

new PasswordAuthentication(String userName, char[] password)

   <source lang="java">
 

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>