namespace Invoice

{

    class Invoice

    {

            //setting properties

        public string PartNum { get; set; }  

        public string PartDescription { get; set; }

        public int ItemQuantity { get; set; }

        public decimal PricePerItem { get; set; }

​

​

            //setting up constructor for values 

        public Invoice( string partNum, string partDescription, int quantityValue, decimal pricePerItem)

        {

            PartNum = partNum;

            PartDescription = partDescription;

            ItemQuantity = quantityValue;

            PricePerItem = pricePerItem;

         }

            //method GetInVoiceAmount calculates the invoice amount 

        public void GetInVoiceAmount()

        {

           decimal value;

            value = ItemQuantity * PricePerItem;

​

        }

​

​

​

​

    }

​

​

    class InvoiceTest

    {

        public static void Main(string[] args)

​

        {

​

          Invoice myInvoice = new Invoice("string","string",12,595);

        }

​

​

    }

​

}