C# Please Create a class called Invoice that a hardware store might use to repre
ID: 3721972 • Letter: C
Question
C# Please
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: a part number (type string), a part description (type string), a quantity of the item being purchased (type int) and a price per item (decimal). Your class should have a constructor that initializes the four values. Provide a property with get and set accessors for every instance variable. For the Quantity and PricePerItem properties, if the value passed to the set accessor is negative, the value of the instance variable should be left unchanged. In addition, provide a method GetInvoiceAmount that calculates the invoice amount (i.e. multiplies the quantity by the price per item), then returns the amount as a decimal value. Write a test application named InvoiceTest that demonstrates class Invoice’s capabilities. In this test application, ask the user to enter part number, part description, quantity and price per item. Use the get accessor to retrieve and display the data stored in the instance variables. Use the GetInvoiceAmount method to calculate the invoice amount. Display the invoice amount.
Explanation / Answer
using System.IO;
using System;
public class Invoice
{
public Invoice() {
}
public Invoice(string partNumber, string itemDescription, double unitPrice, int quantityPurchased) {
this.partNumber = partNumber;
this.itemDescription = itemDescription;
this.UnitPrice = unitPrice;
this.QuantityPurchased = quantityPurchased;
}
public string partNumber {
get;
set;
}
public string itemDescription {
get;
set;
}
public double UnitPrice {
get;
set;
}
public int QuantityPurchased {
get;
set;
}
public double GetInvoiceAmount () {
return QuantityPurchased * UnitPrice;
}
}
class InvoiceTest
{
static void Main()
{
Invoice invoice = new Invoice("111", "Bike", 1000.95, 2);
Console.WriteLine("Invoice Amount: "+invoice.GetInvoiceAmount());
Console.ReadLine();
}
}
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