// File: account.h
// Header file for the account class
class account
{
protected:
   double balance;     // current balance
public:
   account(double bal); // the constructor
   account(void);       // default constructor
   void deposit(double amt);
   double getBalance(void);
}; // account


// File: account.cpp
// implementation file for the account class
#include "account.h"
account::account(double bal)
{
   balance = bal;
}

account::account(void)
{
   balance = 0;
}

void account::deposit(double amt)
{
   balance += amt;
}

double account::getBalance(void)
{
   return balance;
}

// file accountDemo.cpp
#include <iostream.h>
#include "account.h"

void main(void)
{
   account a(50.45), b;   // a has $50.45, b has $0.0 initially

   a.deposit(30);
   cout << " account a now has $" << a.getBalance() << endl;
   b.deposit(130);
   cout << " account a now has $" << b.getBalance() << endl;
}