in JAVA

Write a program named MapDemo that uses a HashMap to keep track of the users that have access to a companys intranet site. The map should include the users ID and password. The program should include the following methods:

• public static void addUser(String userId, String password) the method adds users to a map and displays an appropriate message (see example output).
• public static void displayNumberOfUsers() the method displays the number of users in the map, if the map is empty the following message is displayed: There are currently no users.
• public static void displayUsers() the method displays each users user ID and password on a separate line.
• public static void deleteUser(String userId, String password) the method deletes the user if the user information passed into the method matches a user in the map. If the user has been deleted or not deleted, display an appropriate message (see example output).
• public static void updateUserPassword(String userId, String oldPassword, String newPassword) - the method updates the users password if the user information passed into the method matches a user in the map. If the user has been updated or not updated, display an appropriate message (see example output).
• public static void displayUserPassword(String userId) The method displays the users password if the user ID exists in the map; if the user ID does not exist in the map, display an appropriate message (see example output).
• public static void sortUsers() The method sorts the map in alphabetical order by user ID and displays each users user ID and password on a separate line.

*****The program must include the follow steps:*****

Create an empty HashMap.

Call the displayNumberOfUsers method.

Add the following users to the map by calling the addUser method:

User ID password

dav79684 A82Ty6AGCMqp#

jai88735 !bSWGvFKmd5Ef

adr93442 DqTEcbxX3U3X$

tav36140 &nzK6YFdR74hY

kry52417 rxS5Yf2GeJeZ@

hen22919 #7BV5WMZmUQgp

Call the displayNumberOfUsers method.

Call the displayUsers method.

Attempt to delete the following users by calling the deleteUser method:

• user ID - tav36140 password - &nzK6YFdR74hY
• user ID - hen22919 password - #7BV5WMZmUQg (delete should fail as the passwords do not match)

Add the following users by calling the addUser method:

• user ID - tim15610 password - RhKEsNm5GaYt!
• user ID - ben57543 password - $MyCg7NLg9uCS

Attempt to update the following users passwords by calling the updateUserPassword method:

• user ID - adr93442 old password - DqTEcbxX3U3X$ new password - N7PF4TazRz4N&

• user ID - kry52417 old password - rxS5Yf2GeeZ@ new password - dSPYyNvb9hLH (update should fail as the old password and existing password do not match)

Call the displayUsers method.

Attempt to display the following users passwords by calling the displayUserPassword method:

• tim15610
• tav36140 (the user does not exist)

Call the sortUsers method.