#include<iostream>

using namespace::std;

template<typename T>

class Stack

{

T arr[5];

int index;

int front;

public:

Stack() : index(0)  {};

void Push(T num) 

{

arr[index++] = num;

}

void Pop()

{

cout << arr[--index] << endl;

}

void Empty()

{

}

};

int main()

{

Stack<int> st;

st.Push(10);

st.Push(20);

st.Push(30);

st.Pop();

st.Pop();

st.Pop();

}

#include <iostream>

#include <cstring>

using namespace std;

const int NAME_LEN = 20;

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

class Account

{

int id;      // 계좌번호

int balance;    // 잔    액

char *name;   // 고객이름

public:

Account(int id, char *name, int balance);

Account(const  Account& _Account);

~Account();

int getID() const; //계좌조회

virtual void AddMoney(int money); //입금

void MinMoney(int money); //출금

int getBalance() const; //잔액조회

char* getName() const; //이름

virtual void ShowAllData();

};

Account::Account(int id, char *name, int balance) {

this->id = id;

this->name = new char[strlen(name) + 1];

strcpy(this->name, name);

this->balance = balance;

}

Account::Account(const  Account& _Account)

{

this->id = _Account.id;

this->name = new char[strlen(_Account.name) + 1];

strcpy(this->name, _Account.name);

this->balance = _Account.balance;

}

Account::~Account()

{

delete name;

}

int Account::getID() const

{

return id;

}

void Account:: AddMoney(int money)

{

this->balance += money;

}

int Account:: getBalance() const

{

return balance;

}

void Account:: MinMoney(int money)

{

balance -= money;

}

char* Account:: getName() const

{

return name;

}

void Account::ShowAllData()

{

cout << "ID : " << id << endl;

cout << "이름 : " <<name << endl;

cout << "잔액 : " << balance << endl;

}

//신용계좌 입금시 1프로 추가

class FaithAccount : public Account

{

public:

FaithAccount(int id, char *name, int balance) : Account(id, name, balance + balance * 0.01)

{

}

void AddMoney(int money)

{

Account::AddMoney(money + money * 0.01);

}

};

//기부계좌 입금액 1프로 기부 기부총액 저장

class ContriAccount : public Account

{

int contri_sum; //기부금 합

public:

ContriAccount(int id, char *name, int balance) : Account(id, name, balance - balance * 0.01)

{

contri_sum += balance * 0.01;

}

void AddMoney(int money)

{

Account::AddMoney(money - money * 0.01);

contri_sum += money * 0.01;

}

void ShowAllData()

{

Account::ShowAllData();

cout << "총기부액 : " << contri_sum << endl;

}

};

class AccManger

{

Account* pArr[100];   // Account 저장을 위한 배열

int index;        // 저장된 Account 수

public:

AccManger() :index(0)

{};

void ShowMenu(void);       // 메뉴출력

void MakeAccount(void);    // 계좌개설을 위한 함수

void DepositMoney(void);       // 입    금

void WithdrawMoney(void);      // 출    금

void Inquire(void);     // 잔액조회

};

int main(void)

{

int choice;

AccManger ac;

while (1)

{

ac.ShowMenu();

cout << "선택: ";

cin >> choice;

cout << endl;

switch (choice)

{

case MAKE:

ac.MakeAccount();

break;

case DEPOSIT:

ac.DepositMoney();

break;

case WITHDRAW:

ac.WithdrawMoney();

break;

case INQUIRE:

ac.Inquire();

break;

case EXIT:

return 0;

default:

cout << "Illegal selection.." << endl;

}

}

return 0;

}

void AccManger::ShowMenu(void)

{

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 AccManger::MakeAccount(void)

{

int id;

char name[NAME_LEN];

int balance;

int sel;

cout << "1. 일반계좌 개설" << endl;

cout << "2. 신용계좌 개설" << endl;

cout << "3. 기부계좌 개설" << endl;

cout << ">>";

cin >> sel;

cout << "[계좌개설]" << endl;

cout << "계좌ID: "; cin >> id;

cout << "이  름: "; cin >> name;

cout << "입금액: "; cin >> balance;

cout << endl;

if (sel == 1)

pArr[index++] = new Account(id, name, balance);

else if (sel == 2)

pArr[index++] = new FaithAccount(id, name, balance);

else if (sel == 3)

pArr[index++] = new ContriAccount(id, name, balance);

else

cout << "오류"<<endl;

}

void AccManger::DepositMoney(void)

{

int money;

int id;

cout << "[입    금]" << endl;

cout << "계좌ID: "; cin >> id;

cout << "입금액: "; cin >> money;

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

{

if (pArr[i]->getID() == id)

{

pArr[i]->AddMoney(money);

cout << "입금완료" << endl << endl;

return;

}

}

cout << "유효하지 않은 ID 입니다." << endl << endl;

}

void AccManger::WithdrawMoney(void)

{

int money;

int id;

cout << "[출    금]" << endl;

cout << "계좌ID: "; cin >> id;

cout << "출금액: "; cin >> money;

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

{

if (pArr[i]->getID() == id)

{

if (pArr[i]->getBalance()<money)

{

cout << "잔액부족" << endl << endl;

return;

}

pArr[i]->MinMoney(money);

cout << "출금완료" << endl << endl;

return;

}

}

cout << "유효하지 않은 ID 입니다." << endl << endl;

}

void AccManger::Inquire(void)

{

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

{

pArr[i]->ShowAllData();

}

}

#include<iostream>

using namespace std;

class Calculator

{

private:

float sum;

int add_num;

int min_num;

int div_num;

int mul_num;

public:

void Init()

{

sum=0;

add_num=0;

min_num=0;

div_num=0;

mul_num=0;

}

float Add(float s1,float s2)

{

add_num++;

sum=s1+s2;

return sum;

}

float Min(float s1,float s2)

{

min_num++;

sum=s1-s2;

return sum;

}

float Div(float s1,float s2)

{

div_num++;

sum=s1/s2;

return sum;

}

float mul(float s1,float s2)

{

mul_num++;

sum=s1*s2;

return sum;

}

void ShowOpCount()

{

cout<<"덧셈 :"<<add_num<<" 뺼셈 : "<<min_num<<" 나눗셈 : "<<div_num<<" 곱셈 : "<<mul_num<<endl;

}

};

int main(void)

{

Calculator cal;

cal.Init();

cout<<"3+5="<<cal.Add(3,5)<<endl;

cout<<"3/5="<<cal.Div(3,5)<<endl;

cout<<"12*4="<<cal.Min(12,4)<<endl;

cout<<"12/4="<<cal.Div(12,4)<<endl;

cal.ShowOpCount();

return 0;

}

#include<iostream>

#include<string>

using namespace std;

class Printer{

private:

char str[100];

public:

void SetString(char *string);

void ShowString();

};

void Printer::SetString(char *string)

{

strcpy(str,string);

}

void Printer::ShowString()

{

cout<<str<<endl;

}

int main()

{

Printer pnt;

pnt.SetString("Hello world!");

     pnt.ShowString();

     pnt.SetString("I love C++");

     pnt.ShowString();

     return 0;

return 0;

}

/* 

 * 윤성우 1장 OOP 단계별 프로젝트

 */

#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};

typedef struct 

{

int accID;      // 계좌번호

int balance;    // 잔    액

char cusName[NAME_LEN];   // 고객이름

} Account;

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:

return 0;

default:

cout<<"Illegal selection.."<<endl;

}

}

return 0;

}

void ShowMenu(void)

{

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;

char name[NAME_LEN];

int balance;

cout<<"[계좌개설]"<<endl;

cout<<"계좌ID: "; cin>>id;

cout<<"이  름: "; cin>>name;

cout<<"입금액: "; cin>>balance;

cout<<endl;

accArr[accNum].accID=id;

accArr[accNum].balance=balance;

strcpy(accArr[accNum].cusName, name);

accNum++;

}

void DepositMoney(void)

{

int money;

int id;

cout<<"[입    금]"<<endl;

cout<<"계좌ID: "; cin>>id;

cout<<"입금액: "; cin>>money;

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

{

if(accArr[i].accID==id)

{

accArr[i].balance+=money;

cout<<"입금완료"<<endl<<endl;

return;

}

}

cout<<"유효하지 않은 ID 입니다."<<endl<<endl;

}

void WithdrawMoney(void)

{

int money;

int id;

cout<<"[출    금]"<<endl;

cout<<"계좌ID: "; cin>>id;

cout<<"출금액: "; cin>>money;

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

{

if(accArr[i].accID==id)

{

if(accArr[i].balance<money)

{

cout<<"잔액부족"<<endl<<endl;

return;

}

accArr[i].balance-=money;

cout<<"출금완료"<<endl<<endl;

return;

}

}

cout<<"유효하지 않은 ID 입니다."<<endl<<endl;

}

void ShowAllAccInfo(void)

{

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

{

cout<<"계좌ID: "<<accArr[i].accID<<endl;

cout<<"이  름: "<<accArr[i].cusName<<endl;

cout<<"잔  액: "<<accArr[i].balance<<endl<<endl;

}

}