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Create a Visual Paradigm project containing the complete class diagram for an application. Make sure to show all the class relationships, fields and methods in the diagram.

$1.$ Bill

$*$ Fields:

$*$ double ItemsPrice

$*$ double HST

$*$ double Tip

$*$ double TotalPrice

$*$ Constructor:

$*$ Bill$($List selectedDishes$)$

$*$ Methods:

$*$ None $($all properties are read$-$only$)$

$2.$ Dish

$*$ Fields:

$*$ string Name

$*$ double Price

$*$ string Description

$*$ string Image

$*$ Constructor:

$*$ Dish$($string name, double price, string description, string image$)$

$*$ Methods:

$*$ None $($fields are directly set by the constructor$)$

$3.$ OrderManager

$*$ Fields:

$*$ static OrderManager $\_$instance

$*$ List $\_$selectedDishes

$*$ Constructor:

$*$ private OrderManager$()$

$*$ Methods:

$*$ public static OrderManager Instance

$*$ public void Add$($Dish dish$)$

$*$ public void Remove$($Dish dish$)$

$*$ public List GetSelectedDishes$()$

$4.$ OrderPage

$*$ Fields:

$*$ ListView DishesListView

$*$ Constructor:

$*$ public OrderPage$()$

$*$ Methods:

$*$ private void LoadDishes$()$

$*$ private async void OnDishSelected$($object sender$,$ ItemTappedEventArgs e$)$

$*$ private async void OnViewOrderClicked$($object sender$,$ EventArgs e$)$

$5.$ SummaryPage

$*$ Fields:

$*$ Bill Bill

$*$ Constructor:

$*$ public SummaryPage$()$

$*$ Methods:

$*$ None $($binding context is set in the constructor$)$

$6.$ ViewOrderPage

$*$ Fields:

$*$ ListView OrderListView

$*$ Constructor:

$*$ public ViewOrderPage$()$

$*$ Methods:

$*$ private void OnRemoveDish$($object sender$,$ ItemTappedEventArgs e$)$

$*$ private async void OnAddMoreItemsClicked$($object sender$,$ EventArgs e$)$

$*$ private async void OnCheckOutClicked$($object sender$,$ EventArgs e$)$

$7.$ App

$*$ Fields:

$*$ None

$*$ Constructor:

$*$ public App$()$

$*$ Methods:

$*$ None $($initializes the application and sets the MainPage$)$

$8.$ AppShell

$*$ Fields:

$*$ None

$*$ Constructor:

$*$ public AppShell$()$

$*$ Methods:

$*$ None $($sets up the application shell$)$

$9.$ MainPage

$*$ Fields:

$*$ None

$*$ Constructor:

$*$ public MainPage$()$

$*$ Methods:

$*$ private async void OnStartOrderClicked$($object sender$,$ EventArgs e$)$

Relationships

$1.$ OrderPage $-$ uses OrderManager to add dishes to the order.

$2.$ ViewOrderPage $-$ uses OrderManager to remove dishes from the order and shows the list of selected dishes.

$3.$ SummaryPage $-$ creates a Bill object using the selected dishes from OrderManager and displays the summary.

$4.$ MainPage $-$ navigates to OrderPage when the "Start your order" button is clicked.

$5.$ AppShell $-$ sets up the navigation for the application.

$6.$ App $-$ initializes the application and sets AppShell as the main page.