은행계좌 관리 프로그램 버전4

프로그램 추가 조건

조건1) class에 const 선언을 추가할 것
조건2) 코드는 은행계좌 관리 프로그램 버전3를 가져와 변경할 것

 

실행결과

개좌개설 예시

입금기능 및 계좌정보 전체 출력 기능 예시

 

코드

#include <iostream>
#include<cstring>

using namespace std;
const int NAME_LEN = 20;

void ShowMenu(void);			//메뉴출력
void MakeAccount(void);			//계좌개설을 위한 함수
void DepositMoney(void);		//입    금
void WithdrawMoney(void);		//출    금
void ShowAllAccInfo(void);		//잔액조회

enum { MAKE = 1, DEPOSIT, WITHDRAW, INQUIRE, EXIT };

class Account
{
private:
	int accID;
	int balance;
	char* cusName;
public:
	Account(int id, int money, char* name)
		:accID(id), balance(money)
	{
		cusName = new char[strlen(name) + 1];
		strcpy(cusName, name);
	}
	Account(const Account& ref)
		:accID(ref.accID), balance(ref.balance)
	{
		cusName = new char[strlen(ref.cusName) + 1];
		strcpy(cusName, ref.cusName);
	}
	int GetaccID() const
	{
		return accID;
	}
	void Deposit(int money)
	{
		balance += money;
	}
	int Withdraw(int money)
	{
		if (balance < money)
			return 0;

		balance -= money;
		return money;
	}
	void ShowInfo() const
	{
		cout << "계좌ID: " << accID << endl;
		cout << "이 름: " << cusName << endl;
		cout << "잔 액: " << balance << endl;
	}
	~Account()
	{
		delete[]cusName;
	}
};

Account* accArr[100];		//Account 저장을 위한 배열
int accNum = 0;				//저장된 Account 수

int main(void)
{
	int choice;

	while (1)
	{
		ShowMenu();
		cout << "선택: ";
		cin >> choice;
		cout << endl;

		switch (choice)
		{
		case MAKE:
			MakeAccount();
			break;
		case DEPOSIT:
			DepositMoney();
			break;
		case WITHDRAW:
			WithdrawMoney();
			break;
		case INQUIRE:
			ShowAllAccInfo();
			break;
		case EXIT:
			for (int i = 0; i < accNum; i++)
				delete accArr[i];
			return 0;
		default:
			cout << "Illegal selection.." << endl;
		}
	}

	return 0;
}

void ShowMenu(void)
{
	cout << endl;
	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 MakeAccount(void)
{
	int id, balance;
	char name[NAME_LEN];

	cout << "[계좌개설]" << endl;
	cout << "계좌ID: ";	cin >> id;
	cout << "이 름: ";	cin >> name;
	cout << "입금액: ";	cin >> balance;
	cout << endl;

	accArr[accNum++] = new Account(id, balance, name);
}

void DepositMoney(void)
{
	int id, money;

	cout << "[입  금]" << endl;
	cout << "계좌ID: ";	cin >> id;
	cout << "입금액: "; cin >> money;

	for (int i = 0; i < accNum; i++)
	{
		if (accArr[i]->GetaccID() == id)
		{
			accArr[i]->Deposit(money);
			cout << "입금완료" << endl;
			return;
		}
	}
	cout << "유효하지 않은 ID 입니다." << endl;
}

void WithdrawMoney(void)
{
	int id, money;

	cout << "[출  금]" << endl;
	cout << "계좌ID: ";	cin >> id;
	cout << "출금액: ";	cin >> money;

	for (int i = 0; i < accNum; i++)
	{
		if (accArr[i]->GetaccID() == id)
		{
			if (accArr[i]->Withdraw(money) == 0)
			{
				cout << "잔액부족" << endl;
				return;
			}
			cout << "출금완료" << endl;
			return;
		}
	}
	cout << "유효하지 않은 ID 입니다." << endl;
}

void ShowAllAccInfo(void)
{
	for (int i = 0; i < accNum; i++)
	{
		accArr[i]->ShowInfo();
		cout << endl;
	}
}

 

<참고>

윤성우의 열혈 C++ 프로그래밍