Compile Java File: AuthenticatorgetRequestingProtocolExample2

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.Authenticator; 
import java.net.InetAddress; 
import java.net.MalformedURLException; 
import java.net.PasswordAuthentication; 
import java.net.URL; 
public class AuthenticatorgetRequestingProtocolExample2   
{ 
    public static void main(String[] args)  
    { 
        try { 
             ClassAuthenticator obj1 =new ClassAuthenticator();
            Authenticator.setDefault(new ClassAuthenticator()); 
            obj1.getPasswordAuthentication() ;
            URL url = new URL("https://www.javaTpoint.com"); 
            BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); 
            System.out.println("Protocol Used:  " +url.getProtocol());
            String line; 
            while ((line = in.readLine()) != null) { 
                System.out.println(line); 
            } 
            in.close(); 
          } catch (MalformedURLException e) { 
            System.out.println("Malformed URL: " + e.getMessage()); 
        } catch (IOException e) { 
            System.out.println("I/O Error: " + e.getMessage()); 
        } 
    } 
  
    public static class ClassAuthenticator extends Authenticator  
    { 
        protected PasswordAuthentication getPasswordAuthentication()  
        { 
            String name = getRequestingProtocol(); 
            System.out.println("  " +name ); 
            String username = "javaTpoint"; 
            String password = "tutorial"; 
            return new PasswordAuthentication(username, password.toCharArray()); 
        } 
    } 
}

Output

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