public static void Main(string[] args)
{
Account account = new Account("Marnie", "S12345678", "HKD");
account.SetAccountStatus(true);
Console.WriteLine("Account Number: " + account.GetAccountNumber() + "\n" +
"Account Name: " + account.GetAccountName() + "\n" +
"Currency: " + account.GetCurrency() + "\n" +
"Status: " + account.GetAccountStatus() + "\n");
Transaction transaction = new Transaction(account);
transaction.Withdrawal(49);
Console.WriteLine("Balance is " + transaction.GetBalance().ToString());
}