- Examples

#include <iostream>
class Account{
public:
   Account(double b): balance(b){}
   void deposit(double amt){
     balance += amt;
   }
   void withdraw(double amt){
     balance -= amt;
   }
   double getBalance() const {
     return balance;
   }
private:
   double balance;
};
class BankAccount: public Account{
public:
  // using Account::Account;
  BankAccount(double b): Account(b){}
  void addInterest(){
    deposit( getBalance()*0.05 );
  }
};
int main(){
  std::cout << std::endl;
  BankAccount bankAcc(100.0);
  bankAcc.deposit(50.0);
  bankAcc.deposit(25.15);
  bankAcc.withdraw(30);
  bankAcc.addInterest();
  std::cout << "bankAcc.getBalance(): " << bankAcc.getBalance() << std::endl;
  std::cout << std::endl;
}