public PankkiTili()
{
accountNumber = BankDefaults.createAccountNumber();
}
public PankkiTili(double initialSaldo)
{
accountNumber = BankDefaults.createAccountNumber();
saldo = initialSaldo;
}
public Asiakas(string nimi)
{
name = nimi;
customerNumber = BankDefaults.createCustomerNumber();
}