Lab: Inheritance

Extend your Account class using inheritance of class from Lab 4 for simplicity

---

class accountFX: public account

Methods

setExchangeRate(int rate)

convertMOPtoRMB(int amountInMOP)

exchangeRMBtoMOP(int amountInRMB)

Data members

RMB

exchangeRate, e.g. exchangeRate=1.25 (default value 1.25 in default constructor)

---

class accountSecurity: public account

/* Assuming there is no transaction fee (no bid-ask spread either) */

Methods

setHSBCpricePerShare(int price)

buyHSBC(int numberShares)

sellHSBC(int numberShares)

Data members

pricePerShare (default value MOP400 in default constructor)

numberSharesHSBC?

lab4:

#include

using namespace std;

class Account{

public:

//Constructor

Account(){ balance = interestRate = 0.0; term = 0;}

Account(double b, double r, int t){

balance = b;

interestRate = r;

term = t;

}

//Accessor

double getBalance() { return balance; }

double getInterestRate() { return interestRate;}

int getTerm() { return term;}

//Mutator

void Deposit(double amount){

balance += amount;

}

int WithDraw(double amount){

if (amount > balance) return -1;

else {

balance -= amount;

return 1;

}

}

void AdjustRate(double newRate){

interestRate = newRate;

}

void SetTerm(int newTerm){

term = newTerm;

}

void CalBalanceMaturity(){

double s = balance + balance * interestRate/100 * term/12;

cout << "After the term of " << term << "months" << endl;

cout << "Your account will have a balance (Maturity) of MOP " << s << endl;

}

private:

double balance;

double balanceMaturity;

double interestRate;

int term;

};

int main(){

Account a;

cout << "-----Operations on Henry's Account----- " << endl;

cout << "Your account has MOP " << a.getBalance() << endl;

cout << "The current interest rate is " << a.getInterestRate() << endl;

cout << "The deposit term is " << a.getTerm() << endl;

a.CalBalanceMaturity();

a.Deposit(5000);

a.AdjustRate(1.5);

a.SetTerm(6);

cout << "Your account has MOP " << a.getBalance() << endl;

cout << "The current interest rate is " << a.getInterestRate() << endl;

cout << "The deposit term is " << a.getTerm() << endl;

a.CalBalanceMaturity();

cout << "-----End of Operations on Henry's Account----- " << endl;

Account b(10000, 3, 18);

cout << "-----Operations on Raymond's Account----- " << endl;

cout << "Your account has MOP " << b.getBalance() << endl;

cout << "The current interest rate is " << b.getInterestRate() << endl;

cout << "The deposit term is " << b.getTerm() << endl;

b.CalBalanceMaturity();

b.WithDraw(2000);

b.AdjustRate(3);

b.SetTerm(18);

cout << "Your account has MOP " << b.getBalance() << endl;

cout << "The current interest rate is " << b.getInterestRate() << endl;

cout << "The deposit term is " << b.getTerm() << endl;

b.CalBalanceMaturity();

cout << "-----End of Operations on Raymond's Account----- " << endl;

return 0;

}