Part $1-$ Creating the New Application

$1.$ Create and call a function to:

$*$ Open a text file for storing the user information. The file must be opened so that entered data is added to the data already in the file.

$*$ Use a loop to read the current records from the text file and save the user ID into a list object for validation purposes.

$2.$ Create and call a function to use a loop that will obtain user input until terminated by the user typing "END"

$*$ Allow the user to input a user ID$,$ password, and authorization code. Validate that the user ID does not already exist in the list object and that only "Admin" or "User" is entered as an authorization code.

$*$ Write the user ID$,$ Password, and validation code as a pipe delimited list to the text file and add the user ID to the list object if all validations have passed.

$3.$ After the user terminates the data entry loop, create and call a new function that will:

$*$ Open the text file that contains the user login information.

$*$ Display the user ID$,$ password, and authorization code for all users.

Part $2-$ Updating the existing application

$*$ Define a class named login$.$ The class should have three properties:

$-$ User ID

$-$Password

$-$ Authorization

$*$ Create and call a function for login process:

$-$ Open the text file with the user login information

$-$Read each record from the file and store the user ID$,$ password, and authorization code in a list object. $($Note: multipe list objects may be needed for this funtionality$)$

$-$Enter a user ID

$-$ Enter password

$-$Validate the user ID by reading the list object. If the user does not exist, display an appropriate message and exit the application.

$-$If the user is vaild, verify that the password matches. If the password does not match, display and appropriate message and exit the application.

$\_$ If the user ID is valid and passworf matches

$\_\_\_\_\_1.$ Create an object from the class login$.$

$\_\_\_\_\_2.$ Store the user ID$,$ password, and authentication code in the properties

Part $3-$ Modify code for authorization functionality

$*$ if the authorization code stored in the object is "Admin", allow the user to enter and display data.

$*$ If the authorization code stored in the object is "User", allow the user to display data only.

$*$Modify the display of the data and totals to first display the user ID$,$ password and authorization code using the properties in the object.