Console.WriteLine()
while
choice == "yes" || choice == "yes."
if (choice == "yes" || choice == "yes.")
true
false
string choice;do{ // ask about withdrawing, depositing, etc. // do the withdrawal, deposit, etc. // ask if the user wants to go again, so now choice has a value}while (/* what goes here? */);
Console.ReadLine().ToLower()
choice