Your project will need to be a complete GUI, using Java, and adopt the following features:

$1$

$.$

$$Login Screen

a

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$$User information should be stored in a database

$($

postgres

$)$

$.$

$$When a user signs

in

$,$

$$you must determine whether the user is a customer, employee, or manager as

this will determine the menu options they have.

$2$

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$$Create Account

a

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$$There should be two

$$

Create Account

$$

$$options: Create Customer, and Create

Employee. Customer creation will ask for the following information: user name,

password, first name, last name, email address, and address. In the case of

employee creation, the same information is required, except address. You should

additionally ask for the new employee

$$

s position

$($

employee

$,$

$$manager$,$ etc

$)$

$.$

i

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$$Managers can add both employees and customers

ii

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$$Employees can add customers

iii. Customers can add themselves

$3$

$.$

$$Shopping Page

a

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$$Once signed in as a customer, the user will have the option to search for items,

select an item, enter a quantity, and add this to their cart. The cart should be

saved to your database

$($

postgres

$)$

$,$

$$so that the next time the user signs in

$,$

$$their

cart is still available.

b

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$$The items your application uses should be saved in a data structure of your

choice, not the database. You can use linked lists, etc for this purpose.

$4$

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$$Check Out

a

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$$The user should have the option to checkout at any time. Checking out will create

a new

$$

order

$$

$$that is saved to the database

$($

postgres

$)$

$,$

$$clear the user

$$

s current

cart, and then display a message stating

$$

Your order for number items

$($

$price

$)$

was completed successfully.

$$

$($

Substituting number for the number of items in

their cart and price with the total price of all the items in their cart

$)$

$.$

$$The order is

then moved to the pending order for approval.

$5$

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$$Pending Orders

a

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$$Only available to employees and managers, the pending orders page will allow

the user to process a completed order. Remember that the pending orders

should

$$

ve been saved to the database

$($

postgres

$)$

$,$

$$so the employee can mark

these as completed.

$6$

$.$

$$Item Modifications

a

$.$

$$Only available to employees, this page will allow the user to search for an

existing item, then update it

$$

s quantity and price. The user should also be able to

add new items to the application

$($

utilizing the data structure used to store the

items

$)$

$,$

$$as well as delete items.

$7$

$.$

$$Logout

a

$.$

$$At any time, a user should be able to logout

$.$

$$In the case of a customer logging

out, their cart should be saved to the database, so it can be loaded the next time

they sign in

$.$