static void Main(string[] args)
{
Customer cust = new Customer();
string firstname;
string lastname;
string gender;
Console.WriteLine("what is your first name?");
firstname = Console.ReadLine();
cust.setFirstName(firstname);
Console.WriteLine("what is your last name?");
lastname = Console.ReadLine();
cust.setLastName(lastname);
Console.WriteLine("what is your gender?");
gender = Console.ReadLine();
cust.setGender(gender);
int account_number;
string account_type;
string currency;
Console.WriteLine("what is your account number?");
account_number = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("what type account do you have");
account_type = Console.ReadLine();
Console.WriteLine("in which currency?");
currency = Console.ReadLine();
Account acc = new Account(account_number, account_type, currency);
Console.WriteLine("Enter amount to deposit");
double depositAmount;
depositAmount = Convert.ToDouble(Console.ReadLine());
acc.deposit(depositAmount);
Console.WriteLine("Enter amount to withdraw");
double withdrawAmount;
withdrawAmount = Convert.ToDouble(Console.ReadLine());
acc.withdraw(withdrawAmount);
}