OOP 단계별 프로젝트 4

/*

BankAccount 클래스의 멤버함수 중 일부를 const로 선언하면서 Banking System의 버전을 0.3에서 0.4으로 업그레이드 시키겠다.

const로 선언이 가능한 모든 멤버함수를 const로 선언하자

*/

#include <iostream>

#include <cstring>

 

using namespace::std;

 

int Menu(void); //메뉴

void MakeBankAccount(void); //계좌 개설

void Deposit(int money); //입금

void Withdraw(int money); //출금

void ShowAccountInfo(void); //전체고객 잔액조회

 

class BankAccount

{

private:

        int AccountNumber; //계좌 번호

        char *Name; //고객 이름

        int Money; //고객의 잔액

public:

        BankAccount(int num, char *name, int money) :AccountNumber(num), Money(money) //생성자

        {

               Name = new char[strlen(name) + 1];

               strcpy(Name, name);

        }

        BankAccount(const BankAccount &copy) :AccountNumber(copy.AccountNumber), Money(copy.Money) //추가된 복사생성자(나름 간단), const 추가

        {

               Name = new char[strlen(copy.Name) + 1];

               strcpy(Name, copy.Name);

        }

        int GetNumber() const //const 추가

        {

               return AccountNumber;

        }

        void Deposit(int money)

        {

               Money += money;

        }

        int Withdraw(int money)

        {

               if (Money < money)

                       return 0;

 

               Money -= money;

               return money;

        }

        void ShowAccountInfo() const //const 추가

        {

               cout << "이름:" << Name << endl;

               cout << "계좌번호:" << AccountNumber << endl;

               cout << "잔고:" << Money << endl;

        }

        ~BankAccount() //소멸자

        {

               delete[]Name;

        }

};

 

BankAccount *Arr[10]; //계좌 포인터 배열

int AccountNum = 0; //계좌 개수

 

int main(void)

{

        int money;

        while (1)

        {

               int sel = Menu();

               switch (sel)

               {

               case 1:

                       MakeBankAccount();

                       break;

               case 2:

                       cout << "입금할 금액:";

                       cin >> money;

                       Deposit(money);

                       break;

               case 3:

                       cout << "출금할 금액:";

                       cin >> money;

                       Withdraw(money);

                       break;

               case 4:

                       ShowAccountInfo();

                       break;

               case 5:

                       for (int i = 0; i < AccountNum; i++) //포인터배열을 동적할당했으므로

                              delete Arr[i];

                       return 0;

               default:

                       cout << "잘못된 번호를 입력하셨습니다" << endl;

               }

        }

        return 0;

}

 

int Menu(void)

{

        int sel;

        cout << "-----Menu-----" << endl;

        cout << "1.계좌개설" << endl << "2.입금" << endl << "3.출금" << endl << "4.계좌정보 전체 출력" << endl << "5.프로그램 종료" << endl;

        cout << "선택";

        cin >> sel;

        return sel;

}

 

void MakeBankAccount()

{

        int accountNumber;

        char name[30];

        int money;

        cout << AccountNum + 1 << "사람 정보 입력" << endl;

        cout << "계좌번호 입력:";

        cin >> accountNumber;

        cout << "이름 입력:";

        cin >> name;

        cout << "잔액 입력:";

        cin >> money;

        cout << endl;

 

        Arr[AccountNum++] = new BankAccount(accountNumber, name, money); //계좌개설 완료 후 다음 사람으로

}

 

void Deposit(int money)

{

        int number;

        cout << "고객님의 계좌번호를 입력해주세요:";

        cin >> number;

        for (int i = 0; i <= AccountNum; i++)

        {

               if (Arr[i]->GetNumber() == number) //계좌번호가 같으면

               {

                       Arr[i]->Deposit(money);

                       cout << "입금이 완료되었습니다" << endl;

                       return;

               }

        }

        cout << "없는 계좌번호입니다" << endl;

}

 

void Withdraw(int money)

{

        int number;

        cout << "고객님의 계좌번호를 입력해주세요:";

        cin >> number;

        for (int i = 0; i <= AccountNum; i++)

        {

               if (Arr[i]->GetNumber() == number) //계좌번호가 같으면

               {

                       if (Arr[i]->Withdraw(money) == 0)

                       {

                              cout << "잔액이 부족합니다" << endl;

                              return;

                       }

                       cout << "출금이 완료되었습니다" << endl;

                       return;

               }

        }

        cout << "없는 계좌번호입니다" << endl;

}

 

void ShowAccountInfo(void)

{

        for (int i = 0; i < AccountNum; i++)

        {

               Arr[i]->ShowAccountInfo();

               cout << endl;

        }

}

개발환경:Visual Studio 2017

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[참고] 열혈 C++ 프로그래밍 윤성우 저