1. main()의 실행 결과가 다음과 같도록 Tower 클래스를 작성하라.
mian.cpp
#include <iostream>
#include "Tower.h"
using namespace std;
int main() {
Tower myTower;
Tower seoulTower(100);
cout << "높이는 " << myTower.getHeight() << "미터" << endl;
cout << "높이는 " << seoulTower.getHeight() << "미터 " << endl;
}
Tower.h
#ifndef TOWER_H
#define TOWER_H
class Tower {
int height;
public:
Tower();
Tower(int n);
int getHeight();
};
#endif
Tower.cpp
#include <iostream>
#include "Tower.h"
using namespace std;
int main() {
Tower myTower;
Tower seoulTower(100);
cout << "높이는 " << myTower.getHeight() << "미터" << endl;
cout << "높이는 " << seoulTower.getHeight() << "미터 " << endl;
}
2. 날짜를 다루는 Date 클래스를 작성하고자 한다. Date를 이용하는 main()과 실행 결과는다음과 같다. 클래스 Date를 작성하여 아래 프로그램에 추가하라.
main.cpp
#include <iostream>
#include "Date.h"
using namespace std;
int main() {
Date birth(2024, 3, 20);
Date independenceDay("1945/8/15");
independenceDay.show();
cout << birth.getYear() << ',' << birth.getMonth() << ',' << birth.getDay() << endl;
}
Date.h
#ifndef DATE_H
#define DATE_H
#include <string>
using namespace std;
class Date {
int year, month, day;
public:
Date(int y, int m, int d);
Date(string date); // string 때문에 include <string>이랑 using namespace std 사용
int getYear();
int getMonth();
int getDay();
void show();
};
#endif
Date.cpp
#include <iostream>
#include <string>
#include "Date.h"
using namespace std;
Date::Date(int y, int m, int d) {
year = y;
month = m;
day = d;
}
Date::Date(string date) {
int index;
year = stoi(date);
index = date.find('/');
month = stoi(date.substr(index + 1));
index = date.find('/');
day = stoi(date.substr(index + 1));
}
int Date::getYear() {
return year;
}
int Date::getMonth() {
return month;
}
int Date::getDay() {
return day;
}
void Date::show() {
cout << year << "년" << month << "월" << day << "일" << endl;
}3.
main.cpp
#include <iostream>
#include "Account.h"
using namespace std;
int main() {
Account a("kiate", 1, 5000);
a.deposit(50000);
cout << a.getOwner() << "의 잔액은 " << a.inquiry() << endl;
int moeny = a.withdraw(20000);
cout << a.getOwner() << "의 잔액은 " << a.inquiry() << endl;
}
Account.h
#ifndef ACCOUNT_H
#define ACCOUNT_H
#include <string>
using namespace std;
class Account {
string name;
int id;
int balance;
public:
Account(string n, int i, int b);
void deposit(int money);
string getOwner();
int withdraw(int money);
int inquiry();
};
#endif
Account.cpp
#include <string>
#include "Account.h"
Account::Account(string n, int i, int b) {
name = n;
id = i;
balance = b;
}
void Account::deposit(int money) {
balance += money;
}
int Account::withdraw(int money) {
if (balance >= money) {
balance -= money;
return money;
}
else {
return 0;
}
}
string Account::getOwner() {
return name;
}
int Account::inquiry() {
return balance;
}4.
main.cpp
#include <iostream>
#include "CoffeeMachine.h"
using namespace std;
int main() {
CoffeeMachine java(5, 10, 3);
java.drinkEspresso();
java.show();
java.drinkAmericano();
java.show();
java.drinkSugarCoffee();
java.show();
java.fill();
java.show();
}
CoffeeMachine.h
#include <iostream>
#include "CoffeeMachine.h"
using namespace std;
int main() {
CoffeeMachine java(int c, int w, int s);
java.drinkEspresso();
java.show();
java.drinkAmericano();
java.show();
java.drinkSugarCoffee();
java.show();
java.fill();
java.show();
}
CoffeeMacine.cpp
#include <iostream>
#include "CoffeeMachine.h"
using namespace std;
CoffeeMachine::CoffeeMachine(int c, int w, int s) {
coffee = c;
water = w;
sugar = s;
}
void CoffeeMachine::show() {
cout << "커피 머신 상태,\t";
cout << "커피:" << coffee << "\t";
cout << "물:" << water << "\t";
cout << "설탕:" << sugar << endl;
}
void CoffeeMachine::drinkEspresso() {
if (coffee < 1 || water < 1) {
cout << "재료 부족" << endl;
return;
}
coffee--;
water--;
}
;
void CoffeeMachine::drinkAmericano() {
if (coffee < 1 || water < 2) {
cout << "재료 부족" << endl;
return;
}
coffee--;
water -= 2;
}
void CoffeeMachine::drinkSugarCoffee() {
if (coffee < 1 || water < 2 || sugar < 1) {
cout << "재료 부족" << endl;
return;
}
coffee--;
water -= 2;
sugar--;
}
void CoffeeMachine::fill() {
coffee = water = sugar = 10;
}5.
main.cpp
#include <iostream>
#include "Random.h"
using namespace std;
int main(){
Random r;
cout << "-- 0에서 " << RAND_MAX << "까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.next();
cout << n << ' ';
}
cout << endl << endl << "-- 2에서 " << "4까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.nextInRange(2, 4);
cout << n << ' ';
}
cout << endl;
}
Random.h
#include <cstdlib>
#include <ctime>
#include "Random.h"
Random::Random() {
srand((unsigned)time(NULL));
}
int Random::next() {
return rand();
}
int Random::nextInRange(int a, int b) {
return a + rand() % (b - a + 1);
}
Random.cpp
#include <iostream>
#include "Random.h"
using namespace std;
int main(){
Random r;
cout << "-- 0에서 " << RAND_MAX << "까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.next();
cout << n << ' ';
}
cout << endl << endl << "-- 2에서 " << "4까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.nextInRange(2, 4);
cout << n << ' ';
}
cout << endl;
}6.
main.cpp
#include <iostream>
#include "EvenRandom.h"
using namespace std;
int main()
{
EvenRandom r;
cout << "-- 0에서 " << RAND_MAX << "까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.next();
cout << n << ' ';
}
cout << endl << endl << "-- 2에서 " << "4까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.nextInRange(2, 10);
cout << n << ' ';
}
cout << endl;
}
EvenRandom.h
#ifndef EVENRANDOM_H
#define EVENRANDOM_H
class EvenRandom {
public:
EvenRandom();
int next();
int nextInRange(int a, int b);
};
#endif
EvenRandom.cpp
#include <iostream>
#include "EvenRandom.h"
using namespace std;
int main()
{
EvenRandom r;
cout << "-- 0에서 " << RAND_MAX << "까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.next();
cout << n << ' ';
}
cout << endl << endl << "-- 2에서 " << "4까지의 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.nextInRange(2, 10);
cout << n << ' ';
}
cout << endl;
}7.
main.cpp
#include <iostream>
#include "SelectableRandom.h"
using namespace std;
int main()
{
SelectableRandom r;
cout << "-- 0에서 " << RAND_MAX << "까지의 짝수 랜덤 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.next();
cout << n << ' ';
}
cout << endl << endl << "-- 2에서 " << "4까지의 랜덤 홀수 정수 10개 --" << endl;
for (int i = 0; i < 10; i++)
{
int n = r.nextInRange(2, 10);
cout << n << ' ';
}
cout << endl;
}
SelectableRandom.h
#ifndef SELECTABLERANDOM_H
#define SELECTABLERANDOM_H
class SelectableRandom {
public:
SelectableRandom();
int next();
int nextInRange(int a, int b);
};
#endif
SelectableRandom.cpp
#include <cstdlib>
#include <ctime>
#include "SelectableRandom.h"
SelectableRandom::SelectableRandom() {
srand((unsigned)time(NULL));
}
int SelectableRandom::next() {
int n;
while (true) {
n = rand();
if (n % 2 == 0) return n;
}
}
int SelectableRandom::nextInRange(int a, int b) {
int n;
while (true) {
n = a + rand() % (b - a + 1);
if (n % 2 == 1) return n;
}
}8. 매개변수 타입이 다른 생성자
main.cpp
#include <iostream>
#include "Integer.h"
using namespace std;
int main()
{
Integer n(30);
cout << n.get() << ' ';
n.set(50);
cout << n.get() << ' ';
Integer m("300");
cout << m.get() << ' ';
cout << m.isEven();
cout << endl;
}
Integer.h
#ifndef INTEGER_H
#define INTEGER_H
#include <string>
using namespace std;
class Integer {
int integer;
public:
Integer(int i) { integer = i; }
Integer(string i) { integer = stoi(i); }
int get() { return integer; }
bool isEven() { return integer % 2 == 0; }
void set(int i) { integer = i; }
};
#endif9.
main.cpp
#include <iostream>
#include "Oval.h"
using namespace std;
int main()
{
Oval a, b(3, 4);
a.set(10, 20);
a.show();
cout << b.getWidth() << "," << b.getHeight() << endl;
}
Oval.h
#ifndef OVAL_H
#define OVAL_H
class Oval {
int width, height;
public:
Oval(int w, int h);
Oval();
~Oval();
int getWidth();
int getHeight();
void set(int w, int h);
void show();
};
#endif
Oval.cpp
#include <iostream>
#include "Oval.h"
using namespace std;
Oval::Oval(){
width = height = 1;
}
Oval::Oval(int w, int h) {
width = w;
height = h;
}
Oval::~Oval() {
cout <<"Oval 소멸 : width:" << width << ", height:" << height << endl;
}
int Oval::getHeight() {
return height;
}
int Oval::getWidth() {
return width;
}
void Oval::set(int w, int h) {
width = w;
height = h;
}
void Oval::show() {
cout << "타원의 너비:" << width << ", 타원의 높이: " << height << endl;
}10.
main.cpp
#include <iostream>
#include "Cal.h"
using namespace std;
int main(){
Add a;
Sub s;
Mul m;
Div d;
int num1, num2;
char op;
while (true) {
cout << "두 정수와 연산자를 입력하세요>>";
cin >> num1 >> num2 >> op;
switch (op) {
case '+':
a.setValue(num1, num2);
cout << a.calculate() << endl;
break;
case '-':
s.setValue(num1, num2);
cout << s.calculate() << endl;
break;
case '*':
m.setValue(num1, num2);
cout << m.calculate() << endl;
break;
case '/':
d.setValue(num1, num2);
cout << d.calculate() << endl;
break;
}
}
}
Cal.h
#ifndef Cal_H
#define Cal_h
class Add {
int a, b;
public:
void setValue(int x, int y);
int calculate();
};
class Sub {
int a, b;
public:
void setValue(int x, int y);
int calculate();
};
class Mul {
int a, b;
public:
void setValue(int x, int y);
int calculate();
};
class Div {
int a, b;
public:
void setValue(int x, int y);
int calculate();
};
#endif
Cal.cpp
#include "Cal.h"
void Add::setValue(int x, int y) {
a = x;
b = y;
}
int Add::calculate() {
return a + b;
}
void Sub::setValue(int x, int y) {
a = x;
b = y;
}
int Sub::calculate() {
return a - b;
}
void Mul::setValue(int x, int y) {
a = x;
b = y;
}
int Mul::calculate() {
return a * b;
}
void Div::setValue(int x, int y) {
a = x;
b = y;
}
int Div::calculate() {
return a / b;
}11.
main.cpp
#include <iostream>
#include "Box.h"
using namespace std;
int main(){
Box b(10, 2);
b.draw();
cout << endl;
b.setSize(7, 4);
b.setFill('^');
b.draw();
}
Box.h
#ifndef BOX_H
#define BOX_H
class Box {
int width, height;
char fill;
public:
Box(int x, int h);
void setFill(char f);
void setSize(int w, int h);
void draw();
};
#endif
Box.cpp
#include <iostream>;
#include "Box.h"
using namespace std;
Box::Box(int w, int h) {
setSize(w, h); fill = '*';
}
void Box::setFill(char f) {
fill = f;
}
void Box::setSize(int w, int h) {
width = w;
height = h;
}
void Box::draw() {
for (int n = 0; n < height; n++) {
for (int m = 0; m < width; m++) cout << fill;
cout << endl;
}
}
12.
main.cpp
#include <iostream>
#include "Ram.h"
using namespace std;
int main(){
Ram ram;
ram.write(100, 20);
ram.write(101, 30);
char res = ram.read(100) + ram.read(101);
ram.write(102, res);
cout << "102 번지의 값 = " << (int)ram.read(102) << endl;
}
Ram.h
#ifndef RAM_H
#define RAM_H
class Ram{
char mem[100 * 1024];
int size;
public:
Ram();
~Ram();
char read(int address);
void write(int address, char value);
};
#endif
Ram.cpp
#include <iostream>
#include "Ram.h"
using namespace std;
Ram::Ram() {
size = 100 * 1024;
for (int i = 0; i < size; i++) {
mem[i] = 0;
}
}
Ram::~Ram() {
cout << "메모리 제거됨" << endl;
}
void Ram::write(int address, char value) {
mem[address] = value;
}
char Ram::read(int address) {
return mem[address];
}'C++' 카테고리의 다른 글
| [명품 C++ Programming] 6장 실습 문제 (0) | 2025.04.28 |
|---|---|
| [명품 C++ Programming] 5장 실습 문제 (0) | 2025.04.27 |
| [명품 C++ Programming] 3장 Open Challenge (지수 표현 클래스 만들기) (0) | 2025.04.26 |
| [명품 C++ Programming] 4장 실습 문제 (0) | 2025.04.08 |
| [명품 C++ Programming] 2장 실습 문제 (2) | 2025.01.14 |
