// File: ex7-4.cpp

#include <iostream>
using namespace std;

class Account
{
protected:
    long acct_no;
    double balance;
    double int_rate;	// annual interest rate
public:
    Account(long acc_no,double init_bal,double i_rate);
    void deposit(double amount);
    void withdraw(double amount);
    void month_end(void);
    void display(void);
};

Account::Account(long acc_no,double init_bal,double i_rate)
{
	cout << "* New Account\t";
	acct_no = acc_no;
	balance = init_bal;
	int_rate = i_rate;
	display();
}

void Account::deposit(double amount)
{
	cout << "Account: " << acct_no << "  deposit = " << amount << endl;
	balance += amount;
}

void Account::withdraw(double amount)
{
	cout << "Account: " << acct_no << "  withdraw = " << amount << endl;
	balance -= amount;
}

void Account::display(void)
{
	cout << "Account: " << acct_no << "  balance = " << balance << endl << endl;
}

void Account::month_end(void)
{
	cout << "Account month-end processing: " << acct_no << endl;
	balance *= (1.+int_rate/12.);
	display();
}

class SavingsAccount : public Account
{
public:
    SavingsAccount(long acc_no, double init_bal = 50., double i_rate = .05)
		: Account(acc_no,init_bal,i_rate) { }
};


class CheckingAccount : public Account
{
private:
    double min_balance;
    double service_charge;
public:
    CheckingAccount(long, double, double = 300.,double = 2.,double = .04);
    void process_check(double amt) { withdraw(amt); }
    void month_end(void);
};

CheckingAccount::CheckingAccount(long acc_no, double init_bal,
								 double min_bal, double service_chg, double i_rate)
								 : Account(acc_no,init_bal,i_rate)
{
	min_balance = min_bal;
	service_charge = service_chg;
}

void CheckingAccount::month_end(void)
{
	cout << "checking Account month-end processing: " << acct_no << endl;
	balance *= (1.+int_rate/12.);
	if (balance < min_balance) balance -= service_charge;
	display();
}

int main(void)
{
	SavingsAccount Mysavings(1234560L,500.);
	CheckingAccount Mychecking(1234561L,1000.);
	Mysavings.deposit(100.);
	Mysavings.display();
	Mysavings.withdraw(200.);
	Mysavings.display();
	Mychecking.deposit(100.);
	Mychecking.display();
	Mychecking.process_check(200.);
	Mychecking.display();
	Mysavings.month_end();
	Mychecking.month_end();
	return 0;
}