Specialized Visitor Design for Segregating Traversal (Criteria Based) and Operation

#include <string>
#pragma once

using namespace std;
class Account
{
public:

	Account(void)
		: _acountNum("")
		, _balance(0)
		, _pin(0)
	{
	}

	virtual ~Account(void)
	{
	}

private:
	string _acountNum;
	double _balance;
	int _pin;

public:
	string getAccountNum() { return _acountNum; }
	double getBalance() { return _balance; }
	int getPin() { return _pin; }

	void setAccountNum(string accntNum) { _acountNum = accntNum; }
	void setBalance(double balance) { _balance = balance; }
	void setPin(int pin) { _pin = pin; }
};