# 7. The Donut Shoppe sells four varieties of doughnuts: Glazed (\$1.0...

## Question

7. The Donut Shoppe sells four varieties of doughnuts: Glazed (\$1.05), Sugar (\$1.05),
Chocolate (\$1.25), and Filled (\$1.50). It also sells regular coffee (\$1.50) and cappuccino (\$2.75). The store manager wants you to create an application that displays a customer's subtotal, 6% sales tax, and total due. Create a Windows Forms application. Use the following names for the project and solution, respectively: Donut Project and Donut Solution. When coding the application, use one independent Sub procedure to determine the subtotal, which is the total cost without the sales tax. Use a function to determine the sales tax. Use an event-handling Sub procedure to clear the output. Save the solution and then start and test the application.

Restrictions:
1) Use only Sub routines for this assignment
2) Your calculate button cost MUST look like this:
Private Sub btnCalc_Click(sender As Object, e As EventArgs) Handles btnCalc.Click
calcSub()
calcTax()
calcTotal()

## Solution Preview

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Option Strict On

Public Class Form1

Private subTotal As Double
Private tax As Double

End Sub

Private Sub btnExit_Click(sender As Object, e As EventArgs) Handles btnExit.Click
Me.Close()
End Sub

Private Sub btnCalc_Click(sender As Object, e As EventArgs) Handles btnCalc.Click
calcSub()
calcTax()
calcTotal()
End Sub

Private Sub calcSub()
subTotal = 0.0
subTotal += 1.05
subTotal += 1.05
subTotal += 1.25
subTotal += 1.5
End...

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