Danielle, Edward, and Francis are three salespeople at Holiday Homes. Write an application named HomeSales that prompts the user for a salesperson initial (D, E, or F ). Either uppercase or lowercase initials are valid. While the user does not type Z, continue by prompting for the amount of a sale. Issue an error message for any invalid initials entered. Keep a running total of the amounts sold by each salesperson. After the user types Z or z for an initial, display each salesperson’s total and a grand total for all sales.

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Explanation:

Program source code

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using static System.Console;

namespace _5HomeSalesConsole

{

class HomeSales

{

static void Main(string[] args)

{

//initial == "D" || initial == "d" || initial == "E" || initial == "e" || initial == "F" || initial == "f"

WriteLine("Holiday Homes Salespeople include:\nDanielle\nEdward\nFrancis");

string initial = "";

//WriteLine("initial={0}" ,initial);

double dAmount = 0.00;

double eAmount = 0.00;

double fAmount = 0.00;

double grandTotal = 0.00;

while (initial != "z")

{

Write("\nEnter a salesperson's first initial: ");

initial = ReadLine().ToLower();

if (initial == "d" || initial == "e" || initial == "f")

{

Write("Enter sales amount: ");

double salesAmount = Convert.ToDouble(ReadLine());

if (initial == "d")

dAmount += salesAmount;

else if (initial == "e")

eAmount += salesAmount;

else if (initial == "f")

fAmount += salesAmount;

grandTotal = dAmount + eAmount + fAmount;

}

}

WriteLine("\nDanielle's Amount: {0:c}"

+ "\nEdward's Amount: {1:c}"

+ "\nFrancis' Amount: {2:c}"

+ "\n\nGrand Total: {3:c}", dAmount, eAmount, fAmount, grandTotal);

}

}

}

c

explanation: