Question

In C# You will be prompting the user for a text string a list of bills they have every month.

a. This should be a comma separated list , bill1, bill2, bill3

b. Validate that this text string is not left blank.

3. Create a custom function called CreateBillArray

a. This function should accept the string variable that holds the bills.

b. Inside of the function, split the text string of the bills into a string array with each individual bill in its own array element.

c. Make sure to remove any spaces before or after the bill itself.

d. Return this string array back to the Main.

4. Create a custom function called BillCosts.

a. This function should accept the string array of bills.

b. Inside of this function create an array to hold the cost of each bill.

c. Loop through the bill string array and prompt the user for the cost of each individual bill. i. Make sure to validate this user prompt.

d. After you get each cost, Return this array to the Main.

5. Create a 3rd custom function called TotalOfBills.

a. This function should accept the decimal array of the bill costs as a parameter.

b. Inside of the function, create a variable to hold the total sum of all of the bills.

c. Create a loop and cycle through the array of costs and add them all up.

d. Return this monthly total for the bills back to the Main.

6. Now you will ask the user for one more piece of information, making sure you validate and convert it to the correct data type.

a. Prompt the user for the number of months that they would like to see.

7. Using the amount of months request and the average cost per month, calculate the amount they will owe in bills.

8. The final output to the user should be done in the Main and follow this format.

Answer 1

Create a new C# console application with the name Bills, add the below code in Program.cs

Program.cs

using System;

namespace Bills
{
class Program
{
static void Main(string[] args)
{
String strBills;
//prompt the user for a text string a list of bills they have every month
Console.Write("Enter the list of bills (comma separated list): ");
strBills = Console.ReadLine();
//Validate that this text string is not left blank
while (strBills.Trim() == "")
{
Console.WriteLine("List cannot be empty.");
//prompting the user for a text string a list of bills they have every month
Console.Write("Enter the list of bills (comma separated list): ");
strBills = Console.ReadLine();
}
//get the bills
String[] bills = CreateBillArray(strBills);
//get the cost of each bill
decimal[] costOfEachBill = BillCosts(bills);
//get the total of all the bills
decimal totalOfAllBills = TotalOfBills(costOfEachBill);

//Prompt the user for the number of months that they would like to see
int numOfMonths;
Console.Write("Enter the number of months you would like to see: ");
bool res = Int32.TryParse(Console.ReadLine(), out numOfMonths);
while (!res)
{
Console.Write("Enter the number of months you would like to see: ");
res = Int32.TryParse(Console.ReadLine(), out numOfMonths);
}

//calculate the amount owed
decimal amtOwed = numOfMonths * totalOfAllBills;

//display the results
Console.WriteLine("\nYour bills for 1 month come out to $" + totalOfAllBills.ToString("0.00"));
Console.WriteLine("For " + numOfMonths + " months, you will owe $" + amtOwed.ToString("0.00"));
Console.Write("\nPress any key to continue...");
Console.ReadKey();
}

//Function that takes the list of bills as String and returns a string array splitting the list
public static string[] CreateBillArray(String strBills)
{
//split the list based on comma
String[] bills = strBills.Split(',');
strBills = strBills.Trim();
//store the list in array
for (int i = 0; i < bills.Length; i++)
{
//remove the trailing spaces in the bills and store them in array
bills[i] = bills[i].Trim();
}
return bills;
}

//Function that prompts and reads the cost of each bill
public static decimal[] BillCosts(String[] bills)
{
//create an array to hold the cost of each bill
decimal[] costOfEachBill = new decimal[bills.Length];
//iterate through all the bill items
for (int i = 0; i < bills.Length; i++)
{
//prompt and read the cost of bill
Console.Write("Enter the cost of bill for " + bills[i] + ": ");
costOfEachBill[i] = Convert.ToDecimal(Console.ReadLine());
//if cost is not valid prompt for valid cost
while (costOfEachBill[i] <= 0)
{
Console.Write("Enter a valid cost of the bill.");
//prompt and read the cost of bill
Console.Write("Enter the cost of bill for " + bills[i] + ": ");
costOfEachBill[i] = Convert.ToDecimal(Console.ReadLine());
}
}
return costOfEachBill;
}

//Function that computes and returns the totalOfAllBills of all the bills
public static decimal TotalOfBills(decimal[] costOfEachBill)
{
decimal totalOfAllBills = 0;
//iterate through all the bills and compute the total cost of bills
for (int i = 0; i < costOfEachBill.Length; i++)
//add each bill to the total
totalOfAllBills = totalOfAllBills + costOfEachBill[i];
return totalOfAllBills;
}
}
}

Output:

file:///E:/DotNet/Bills/Bills/bin/Debug/Bills.EXE Enter the list of bills (comma separated list): bill1, bill2, bill3, bill4 Enter the cost of bill for bill11: 12.45 Enter the cost of bill for bill2: 10 Enter the cost of bill for bill3: 15.50 Enter the cost of bill for bil14: 9.45 Enter the number of months you would like to see: 5 Your bills for 1 month come out to $47.40 For 5 months, you will owe $237.00 Press any key to continue...