Visual Basic Problem (INTRO TO VISUAL BASIC)

Cell Phone Packages

Cell Solutions, a cell phone provider, sells the following packages:

   800 minutes per month:  $45.00 per month

   1500 minutes per month:  $65.00 per month

   Unlimited minutes per month:  $99.00 per month

Customers may also select the following options:

   Email:  $25.00 per month

   Unlimited text messaging:  $10.00 per month

The provider sells the following phones:

   Model 100:  $29.95

   Model 110:  $49.95

   Model 200:  $99.95

 (A 6% sales tax applies to the sale of a phone.)

Additionally, the provider offers individual plans and family plans. With the Indi- vidual plan, the customer gets one phone. With the Family plan, the customer gets as many phones of the same model as he or she desires, and all the phones share the same minutes. Voicemail and text messaging fees are charged for each phone purchased under the Family plan.

Create an application that calculates a customer’s plan cost. The application’s main form should look similar to the one shown in Figure 7-69.

When the user clicks the Individual button, the form shown in Figure 7-70 should appear.

The user selects the phone model, options, and package. When the Calculate button is clicked, the charges are calculated and displayed.

When the user clicks the Family button on the main form, the form shown in Figure 7-71 should appear.

The user enters the number of phones, selects the phone model, options, and pack- age. When the Calculate button is clicked, the charges are calculated and displayed.