public DepositAccount(Customer customer, decimal balance, decimal interestRate) : base(customer, balance, interestRate) { }
public MortgageAccount(Customer customer, decimal money, decimal interestRate) : base(customer, money, interestRate) { }
public BankAccount(Customer customer, decimal balance, decimal interestRate) { this.Customer = customer; this.Balance = balance; this.InterestRate = interestRate / 12 / 100; }