Reference no: EM131143486
Visual Basic Invoice Class Application
Class 1
Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables-(private)
- a part number (type String),
- a part description (type String),
- a quantity of the item being purchased (type int ) -in case of negative value set this to zero
- price per item (double) -in case of negative value set this to zero
Constructor
Your class should have a constructor(with 3 parameter) that initializes the four instance variables.
Methods
1. Provide a set and a get method for each instance variable.
2. In addition, provide a method named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0.0. Write a test application named
3. InvoiceTest that demonstrates class Invoice's capabilities. provide a method getInvoiceDetail that returns all the information(in the form of string) contained in the invoice object.
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