The code below is a working program, but I just can't figure out how to correct the loop. I need it to loop back at the complection of case A, B, C and to end with case X.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AtmProject
{
class Program
{
static void Main(string[] args)
{
// Declare an initialize variables
string sChoice = String.Empty;
string sResponse = String.Empty;
Double bBal = 500.00;
Double aDeposit = 0.0;
Double nBal = 0.0;
Double aWithdraw = 0.0;
do
{
// Show the menu
ShowMenu();
// Get the user's choice and store it in a string as an upper case letter
sChoice = Console.ReadLine().ToUpper();
// This validates that the user made a correct choice
while ((sChoice != "A") && (sChoice != "B") && (sChoice != "C") && (sChoice != "X"))
{
Pause("Please enter a choice from the menu!");
ShowMenu();
//sChoice = Console.ReadLine().ToUpper;
}
// Based on the user's choice, switch to the correct segment
switch (sChoice)
{
// in case they choose A
// Ask for an amount
// Obtain the amount and store it as a string
case "A":
Console.Write("\n\tPlease enter the amount to deposit. ");
sResponse = Console.ReadLine();
// try to convert the amount to a value of type double and store it
try
{
aDeposit = Convert.ToDouble(sResponse);
// Add the amount to the current balance
nBal = Convert.ToDouble(bBal + aDeposit);
// Tell the user his new balance
Console.WriteLine("\n\tYour new balance is {0}", nBal);
}
catch (Exception ex)
{
// if there is an error, catch it and close the program
Console.WriteLine("\n\t" + ex.Message);
Pause("\n\tInvalid amount. This transcation is cancelled...");
return;
}
break;
// in case the choose B
// Ask for an amount
// obtain the amount and store it as an amount
case "B":
Console.Write("\n\tPlease enter the amount to withdraw. ");
sResponse = Console.ReadLine();
// try to convert the amount to a value of type double and store it
try
{
aWithdraw = Convert.ToDouble(sResponse);
// subtract the amount from the current balance
nBal = (bBal - aWithdraw);
// tell the user his new balance
Console.WriteLine("\n\tYour new balance is {0}", nBal);
}
catch (Exception ex)
{
// if there is an error, catch it and close the program
Console.WriteLine("\n\t" + ex.Message);
Pause("\n\tInvalid amount. This transcation is cancelled...");
return;
}
break;
// in case they choose C
// just tell the user his balance
case "C":
Console.WriteLine("\n\tYour current balance is {0}", bBal);
break;
// in case they choose X
// tell the user goodbye
case "X":
Console.WriteLine("\n\tThanks for banking with us.");
Console.WriteLine("\n\tHave a nice day!!");
return;
default:
Pause("Invalid selection. This transcation is cancelled...");
return;
}
// keep looping while the user's choice isn't X
} while (sResponse == "A" );
Pause("\n\tHave a nice Day!!");
}
static void Pause(String s)
{
Console.WriteLine("\n\t" + s);
Console.WriteLine("\n\tPress <enter> to Continue.");
Console.ReadLine();
}
static void ShowMenu()
{
Console.Clear();
Console.WriteLine("\n\n\tBanking Application Basic Menu");
Console.WriteLine("\n\tA) Deposit Funds");
Console.WriteLine("\tB) Withdraw Funds");
Console.WriteLine("\tC) Check Balance");
Console.WriteLine("\n\tX) Exit The System");
Console.Write("\n\tSelect an option: ");
}
}
}
