PasswordAuthentication class in Java

java.net.PasswordAuthentication

The class PasswordAuthentication is a data holder that is used by

Authenticator. It is simply a repository for a username and a password.

Methods

1. PasswordAuthentication(String userName, char[] password)

java.net.PasswordAuthentication.PasswordAuthentication(String userName, char[] password)

This method takes two arguments. This method creates a new PasswordAuthentication object from the given username and password.

Note that the given user password is cloned before it is stored in the new PasswordAuthentication object.

Parameters: Two parameters are required for this method.

Username: the user name.

password: the user's password

Java

package com.PasswordAuthentication;

import java.net.PasswordAuthentication;

public class PasswordAuthentication1 {
    public static void main(String[] args) {

        String userName = "admin";
        char password[] = { 'h', 'e', 'l', 'l', 'o' };
        PasswordAuthentication passwordAuthentication =
           new PasswordAuthentication(userName, password);

        System.out.println(passwordAuthentication);
    }
}

Output:

java.net.PasswordAuthentication@26f0a63f

2. getPassword()

char[] java.net.PasswordAuthentication.getPassword()

This method returns the user password.

Note that this method returns a reference to the password. It is the caller's responsibility to zero out the password information after it is no longer needed.

Parameters: NA

Returns: the password

Exceptions: NA

Java

package com.PasswordAuthentication;

import java.net.PasswordAuthentication;

public class PasswordAuthenticationgetPassword {
    public static void main(String[] args) {

        String userName = "admin";
        char password[] = { 'h', 'e', 'l', 'l', 'o' };
        PasswordAuthentication passwordAuthentication = 
                new PasswordAuthentication(userName, password);

        System.out.println(passwordAuthentication.getPassword());
    }
}

Output:

hello

3. getUserName()

String java.net.PasswordAuthentication.getUserName()

Returns the user name.

Parameters: NA

Returns: the user name.

Exceptions: NA

Java

package com.PasswordAuthentication;

import java.net.PasswordAuthentication;

public class PasswordAuthenticationgetUserName {
    public static void main(String[] args) {

        String userName = "admin";
        char password[] = { 'h', 'e', 'l', 'l', 'o' };
        PasswordAuthentication passwordAuthentication =
               new PasswordAuthentication(userName, password);

        System.out.println(passwordAuthentication.getUserName());
    }
}

Output:

admin