열혈 C++ 프로그래밍 OOP 프로젝트 11

OOP프로젝트의 마지막 11에서는 예외처리 적용예정

허용되는 숫자보다 프로그램사용자로부터 더 작거나 큰 값을 입력받았을 경우

try catch문으로 예외처리

그 과정에서 AccountException.h 파일을 추가하고

숫자가 입력되거나 계산되는 부분에서 if문으로 먼저 확인하고 정상적이지 않은 값일 경우

throw로 Exception 클래스로 전달함

 

추가한 파일

1. AccountException.h

#ifndef __ACCOUNT_EXCEPTION_H__
#define __ACCOUNT_EXCEPTION_H__

class MinusException
{
private:
	int exval;
public:
	MinusException(int val) : exval(val) {}
	void ShowExceptionInfo(void) const
	{
		cout << "입(출)금액 " << exval << "은 유효하지 않습니다!" << endl;
	}
};

class InsuffException
{
private:
	int balance;
	int reqval;
public:
	InsuffException(int val, int req) : balance(val), reqval(req)
	{}
	void ShowExceptionInfo() const
	{
		cout << "잔액에서 " << reqval - balance << "가(이) 부족합니다!" << endl;
	}
};

#endif

 

exval, balance, reqval 등 변수는 예외처리과정에서 전달받는 값들

 

변경된 파일들

1. NormalAccount.h

#ifndef __NOMAL_H__
#define __NOMAL_H__

#include "Account.h"
#include "AccountException.h"

class NomalAccount : public Account
{
private:
	int interestInfo;
public:
	NomalAccount(const int id, int money, const String name, int interInfo)
		:Account(id, money, name), interestInfo(interInfo)
	{}
	virtual void Deposit(int money)
	{
		if (money < 0)
			throw MinusException(money);

		Account::Deposit(money);
		Account::Deposit(money * (interestInfo * 0.01));
	}
};
#endif

 

2. HighCreditAccount.h

#ifndef __HIGHCREDIT_H__
#define __HIGHCREDIT_H__

#include "NormalAccount.h"

class HighCreditAccount : public NomalAccount
{
private:
	int rating;
public:
	HighCreditAccount(const int id, int money, const String name, int interInfo, int rate)
		:NomalAccount(id, money, name, interInfo), rating(rate)
	{}
	virtual void Deposit(int money)
	{
		if (money < 0)
			throw MinusException(money);

		NomalAccount::Deposit(money);
		switch (rating)
		{
		case 1:
			Account::Deposit((int)money * 0.07);
			break;
		case 2:
			Account::Deposit((int)money * 0.04);
			break;
		case 3:
			Account::Deposit((int)money * 0.02);
			break;
		}
	}
};
#endif

 

3. Account.cpp

#include "Account.h"
#include "BankingCommonDec1.h"
#include "AccountException.h"

Account::Account(const int id, int money, const String name)
	:accId(id), balance(money)
{
	//cusName = new char[strlen(name) + 1];
	//strcpy_s(cusName, strlen(name) + 1, name);
	cusName = name;
}
//Account::Account(const Account& ac)
//	:accId(ac.accId), balance(ac.balance)
//{
//	cusName = new char[strlen(ac.cusName) + 1];
//	strcpy_s(cusName, strlen(ac.cusName) + 1, ac.cusName);
//}
int Account::GetAccId() const
{
	return accId;
}
void Account::Deposit(int money)
{
	if (money < 0)
		throw MinusException(money);

	balance += money;
}
int Account::WithDraw(int money)
{
	/*if (balance < money)
	{
		return 0;
	}*/
	if (money < 0)
		throw MinusException(money);
	
	if (balance < money)
		throw InsuffException(balance, money);

	balance -= money;
	return money;
}
void Account::ShowAccount() const
{
	cout << "계좌번호: " << accId << endl;
	cout << "고객이름: " << cusName << endl;
	cout << "잔 액: " << balance << endl << endl;
}
//08 Account 대입연산자 추가
//Account& Account::operator=(const Account& ac)
//{
//	accId = ac.accId;
//	balance = ac.balance;
//	delete[]cusName;
//	cusName = new char[strlen(ac.cusName) + 1];
//	strcpy_s(cusName, strlen(ac.cusName) + 1, ac.cusName);
//	return *this;
//}
//Account::~Account()
//{
//	delete[]cusName;
//}

 

4. AccountHandler.cpp ( try catch문이 들어갈 파일)

#include "Account.h"
#include "BankingCommonDec1.h"
#include "AccountHandler.h"
#include "NormalAccount.h"
#include "HighCreditAccount.h"
#include "AccountException.h"


AccountHandler::AccountHandler()
		:userIndex(0)
{ }

void AccountHandler::ShowMenu() {
	cout << "----- Menu -----" << endl;
	cout << "1. 계좌개설" << endl;
	cout << "2. 입 금" << endl;
	cout << "3. 출 금" << endl;
	cout << "4. 계좌정보 전체 출력" << endl;
	cout << "5. 프로그램 종료" << endl;
}

void AccountHandler::MakeAccount() {
	int interInfo;
	cout << "[계좌종류선택]" << endl;
	cout << "1.보통예급계좌 2.신용신뢰계좌" << endl;
	cout << "선택: ";
	cin >> interInfo;
	if (interInfo == NORMAL)
		MakeNomalAccount();
	else
		MakeCreditAccount();
}

void AccountHandler::MakeNomalAccount()
{
	int id;
	int money = 0;
	int interInfo;
	String userName;

	cout << "[보통예금계좌 개설]" << endl;
	cout << "계좌ID: ";
	cin >> id;
	cout << "고객이름: ";
	cin >> userName;
	cout << "이자율: ";
	cin >> interInfo;
	userList[userIndex++] = new NomalAccount(id, money, userName, interInfo);
	cout << endl;
}

void AccountHandler::MakeCreditAccount()
{
	int id;
	int money = 0;
	int interInfo;
	int rate;
	String userName;

	cout << "[신용신뢰계좌 개설]" << endl;
	cout << "계좌ID: ";
	cin >> id;
	cout << "고객이름: ";
	cin >> userName;
	cout << "이자율: ";
	cin >> interInfo;
	cout << "신용등급(1toA, 2toB, 3toC): ";
	cin >> rate;
	userList[userIndex++] = new HighCreditAccount(id, money, userName, interInfo, rate);
	cout << endl;
}

void AccountHandler::DepositMoney() {
	int tempId;
	int tempBalance;

	cout << "[입 금]" << endl;
	cout << "입금할 계좌번호: ";
	cin >> tempId;

	while (1)
	{
		cout << "입금할 금액: ";
		cin >> tempBalance;
		try
		{
			for (int i = 0; i < userIndex; i++)
			{
				if (tempId == userList[i]->GetAccId())
				{
					userList[i]->Deposit(tempBalance);
					cout << endl;
					return;
				}
			}
			cout << "유효하지 않은 ID 입니다." << endl << endl;
		}
		catch (MinusException& e)
		{
			e.ShowExceptionInfo();
			cout << "입금액을 재입력하세요." << endl;
		}
	}

	
}

void AccountHandler::WithdrawMoney() {
	int tempId;
	int tempBalance;

	cout << "[출 금]" << endl;
	cout << "출금할 계좌번호: ";
	cin >> tempId;

	while (1)
	{
		cout << "출금할 금액: ";
		cin >> tempBalance;
		try
		{
			for (int i = 0; i < userIndex; i++)
			{
				if (tempId == userList[i]->GetAccId())
				{

					if (userList[i]->WithDraw(tempBalance) == 0)
					{
						cout << "잔액 부족" << endl << endl;
						return;
					}
					cout << "출금완료" << endl;
					cout << endl;
					return;
				}
			}
			cout << "유효하지 않은 ID 입니다." << endl << endl;
		}
		catch (MinusException& e)
		{
			e.ShowExceptionInfo();
			cout << "입금액을 재입력하세요." << endl;
		}
		catch (InsuffException& e)
		{
			e.ShowExceptionInfo();
			cout << "출금액을 재입력하세요." << endl;
		}
	}

	
}

void AccountHandler::ShowAllAccount() {
	for (int i = 0; i < userIndex; i++)
	{
		userList[i]->ShowAccount();
	}
}

AccountHandler::~AccountHandler()
{
	for (int i = 0; i < userIndex; i++)
		delete userList[i];
}