using System;using System. Threading. Tasks.Dataflow;using SplashKitSDK;#nullable disablenamespace BankTaskpublic enum MenuOptionADD $\_$ACCOUNT, WITHDRAW, DEPOSIT, TRANSFER, PRINT, PRINT$\_$TRANSACTIONS, QUIT$\}$public class Programpublic static void Main$()\{$Bank bank $=$ new Bank$()$ ;MenuOption userSelection; do$\{$userSelection $=$ ReadUserOption$()$;switch $($userSelection$)$case MenuOption. ADD$\_$ACCOUNT:$\{$doAddAccount $($bank$)$ ; break;$\{$case MenuOption. WITHDRAW:DoWithdraw bank$)$ ; break;$\}$case MenuOption.DEPOSIT:DoDeposit $($bank$)$ ; break;case MenuOption. TRANSFER:Do Transfer $($bank$)$ ; break;$\}$case MenuOption. PRINT:$\{$DoPrint $($bank$)$ ; break;$\}$case MenuOption. PRINT$\_$TRANSACTIONS:$\{$bank$.$PrintTransactionHistory$()$;break;case MenuOption. QUIT:Console.WriteLine"Exiting."break;$\}\}$ while $($userSelection $!=$ MenuOption.QUIT$)$ ;$\}\{$private static MenuOption ReadUserOption$()$int option;do$\{$Console WriteLine $("$Menu:$")$;Console WriteLine$("1.$ Add Account:"$)$;Console.WriteLine$("2.$ Withdraw"$)$;Console WriteLine$("3.$ Deposit"$)$;Console WriteLine$("4.$ Transfer"$)$;Console WriteLine$("5.$ Print"$)$;Console.WriteLine$("6.$ Print Transaction History"$)$;Console.WriteLine$("7.$ Quit"$)$;Console.Write$("$Choose an option $(1-7)$: $")$;string input $=$ Console.ReadLine$)$;try $\{$option $=$ Convert.ToInt$32($input$)$;if $($option $1||$ option $7)\{$Console WriteLine$("$Invalid option. Please choose a numberbetween $1$ and $6.")$;option $=-1$;$\}\}$

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