Jam's story
명품 C++ programming 9장 실습 문제 본문
#include <iostream>
using namespace std;
class Converter {
protected:
double ratio;
virtual double convert(double src) = 0;
virtual string getSourceString() = 0;
virtual string getDestString() = 0;
public:
Converter(double ratio) { this->ratio = ratio; }
void run() {
double src;
cout << getSourceString() << "을 " << getDestString() << "로 바꿉니다. ";
cout << getSourceString() << "을 입력하세요>> ";
cin >> src;
cout << "변환 결과: " << convert(src) << getDestString() << endl;
}
};
class WonToDollar : public Converter {
public:
WonToDollar(double ratio=0.0) : Converter(ratio) {}
double convert(double src) { return src / ratio; }
string getSourceString() { return "원"; }
string getDestString() { return "달러"; }
};
int main() {
WonToDollar wd(1010);
wd.run();
return 0;
}
1-2
#include <iostream>
using namespace std;
class Converter {
protected:
double ratio;
virtual double convert(double src) = 0;
virtual string getSourceString() = 0;
virtual string getDestString() = 0;
public:
Converter(double ratio) { this->ratio = ratio; }
void run() {
double src;
cout << getSourceString() << "을 " << getDestString() << "로 바꿉니다. ";
cout << getSourceString() << "을 입력하세요>> ";
cin >> src;
cout << "변환 결과: " << convert(src) << getDestString() << endl;
}
};
class KmToMile : public Converter{
public:
KmToMile(double ratio=0.0) : Converter(ratio) { }
double convert(double src) { return src / ratio; }
string getSourceString() { return "Km"; }
string getDestString() { return "Mile"; }
};
int main() {
KmToMile toMile(1.609344);
toMile.run();
return 0;
}3
#include <iostream>
using namespace std;
class LoopAdder {
string name;
int x, y, sum;
void read();
void write();
protected:
LoopAdder(string name = "") { this->name = name; }
int getX() { return x; }
int getY() { return y; }
virtual int calculate() = 0;
public:
void run();
};
void LoopAdder::read() {
cout << name << ":" << endl;
cout << "처음 수에서 두번째 수까지 더합니다. 두 수를 입력하세요 >> ";
cin >> x >> y;
}
void LoopAdder::write() {
cout << x << "에서 " << y << "까지의 합 = " << sum << "입니다." << endl;
}
void LoopAdder::run() {
read();
sum = calculate();
write();
}
class ForLoopAdder : public LoopAdder {
public:
ForLoopAdder(string name = " ") : LoopAdder(name) {}
int calculate() {
int sum = 0;
for (int i = getX(); i <= getY(); i++) {
sum += i;
}
return sum;
}
};
class WhileLoopAdder : public LoopAdder{
public:
WhileLoopAdder(string name = " ") :LoopAdder(name) {
cout << name << ":";
}
int calculate() {
int sum = 0;
int x = getX();
while (x <= getY()) {
sum += x;
x++;
}
return sum;
}
};
class DoWhileLoopAdder : public LoopAdder {
public:
DoWhileLoopAdder(string name = " ") :LoopAdder(name) {
cout << name << ":";
}
int calculate() {
int sum = 0;
int x = getX();
do {
sum += x;
x++;
} while (x <= getY());
return sum;
}
};
int main() {
WhileLoopAdder whileLoop("while Loop");
DoWhileLoopAdder doWhileLoop("Do while Loop");
whileLoop.run();
doWhileLoop.run();
return 0;
}
4
#include <iostream>
using namespace std;
class LoopAdder {
string name;
int x, y, sum;
void read();
void write();
protected:
LoopAdder(string name = "") { this->name = name; }
int getX() { return x; }
int getY() { return y; }
virtual int calculate() = 0;
public:
void run();
};
void LoopAdder::read() {
cout << name << ":" << endl;
cout << "처음 수에서 두번째 수까지 더합니다. 두 수를 입력하세요 >> ";
cin >> x >> y;
}
void LoopAdder::write() {
cout << x << "에서 " << y << "까지의 합 = " << sum << "입니다." << endl;
}
void LoopAdder::run() {
read();
sum = calculate();
write();
}
class ForLoopAdder : public LoopAdder {
public:
ForLoopAdder(string name = " ") : LoopAdder(name) {}
int calculate() {
int sum = 0;
for (int i = getX(); i <= getY(); i++) {
sum += i;
}
return sum;
}
};
class WhileLoopAdder : public LoopAdder{
public:
WhileLoopAdder(string name = " ") :LoopAdder(name) {
cout << name << ":";
}
int calculate() {
int sum = 0;
int x = getX();
while (x <= getY()) {
sum += x;
x++;
}
return sum;
}
};
class DoWhileLoopAdder : public LoopAdder {
public:
DoWhileLoopAdder(string name = " ") :LoopAdder(name) {
cout << name << ":";
}
int calculate() {
int sum = 0;
int x = getX();
do {
sum += x;
x++;
} while (x <= getY());
return sum;
}
};
int main() {
WhileLoopAdder whileLoop("while Loop");
DoWhileLoopAdder doWhileLoop("Do while Loop");
whileLoop.run();
doWhileLoop.run();
return 0;
}
5
#include <iostream>
using namespace std;
class AbstractGate {
protected:
bool x, y;
public:
void set(bool x, bool y) { this->x = x; this->y = y; }
virtual bool operation() = 0;
};
class ANDGate : public AbstractGate {
public:
bool operation() {
return x & y;
}
};
class ORGate : public AbstractGate {
public:
bool operation() {
return x | y;
}
};
class XORGate : public AbstractGate {
public:
bool operation() {
return x ^ y;
}
};
int main() {
ANDGate andGate;
ORGate orGate;
XORGate xorGate;
andGate.set(true, false);
orGate.set(true, false);
xorGate.set(true, false);
cout.setf(ios::boolalpha);
cout << andGate.operation() << endl;
cout << orGate.operation() << endl;
cout << xorGate.operation() << endl;
return 0;
}6
#include <iostream>
using namespace std;
class AbstractStack {
public:
virtual bool push(int n) = 0;
virtual bool pop(int& n) = 0;
virtual int size() = 0;
};
class IntStack : public AbstractStack {
int stack[10] = { 0 };
int top = -1;
public:
bool push(int n) {
if (size() + 1 >= 10) {
cout << "stack 이 꽉찼어요 "<<endl;
return false;
}
stack[++top]=n;
return true;
}
bool pop(int& n) {
if (size() < 0) {
cout << "stack이 비었음" << endl;
return false;
}
n = stack[top--];
return true;
}
int size() {
return top;
}
void show() {
cout << "{";
for (int i = 0; i <= top; i++) {
cout << stack[i] << ' ';
}
cout << "}" << endl;
}
};
int main() {
IntStack intStack;
intStack.push(1);
intStack.push(2);
intStack.push(3);
intStack.push(4);
intStack.push(5);
intStack.push(6);
intStack.show();
int n;
intStack.pop(n);
cout << n << " is popped" << endl;
intStack.show();
return 0;
}7
#include <iostream>
using namespace std;
class Shape {
protected:
string name;
int width, height;
public:
Shape(string n = "", int w = 0, int h = 0) { name = n; width = w; height = h; }
virtual double getArea() { return 0; }
string getname() { return name; }
};
class Oval : public Shape {
public:
Oval(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return 3.14 * width * height; }
};
class Rect : public Shape {
public:
Rect(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return width * height; }
};
class Triangular : public Shape {
public:
Triangular(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return 0.5* width * height; }
};
int main() {
Shape* p[3];
p[0] = new Oval("빈대떡", 10, 20);
p[1] = new Rect("찰떡", 30, 40);
p[2] = new Triangular("토스트", 30, 40);
for (int i = 0; i < 3; i++) {
cout << p[i]->getname() << " 넓이는 " << p[i]->getArea() << endl;
}
for (int i = 0; i < 3; i++) delete p[i];
return 0;
}8
#include <iostream>
using namespace std;
class Shape {
protected:
string name;
int width, height;
public:
Shape(string n = "", int w = 0, int h = 0) { name = n; width = w; height = h; }
virtual double getArea() = 0;
string getname() { return name; }
};
class Oval : public Shape {
public:
Oval(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return 3.14 * width * height; }
};
class Rect : public Shape {
public:
Rect(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return width * height; }
};
class Triangular : public Shape {
public:
Triangular(string name, int width, int height) : Shape(name, width, height) {}
double getArea() { return 0.5* width * height; }
};
int main() {
Shape* p[3];
p[0] = new Oval("빈대떡", 10, 20);
p[1] = new Rect("찰떡", 30, 40);
p[2] = new Triangular("토스트", 30, 40);
for (int i = 0; i < 3; i++) {
cout << p[i]->getname() << " 넓이는 " << p[i]->getArea() << endl;
}
for (int i = 0; i < 3; i++) delete p[i];
return 0;
}9
#include <iostream>
using namespace std;
class Printer {
string model; //모델
string manufacturer; //제조업체
int printedCount, availableCount; //인쇄매수, 인소9ㅐ종이장ㄴ량
protected:
Printer(string m = " ", string ma = "", int a = 0) {
this->model = m;
this->manufacturer = ma;
this->availableCount = a;
this->printedCount = 0;
}
//getter, setter
string getModel() { return model; }
string getManufacturer() { return manufacturer; }
int getPrintedCount() { return printedCount; }
int getAvailableCount() { return availableCount; }
void setModel(string model) { this->model = model; }
void setManufacturer(string manufacturer) { this->manufacturer = manufacturer; }
void setPrintedCount(int printedCount) { this->printedCount = printedCount; }
void setAvailableCount(int availableCount) { this->availableCount = availableCount; }
bool isValidPrint(int pages) {
if (availableCount >= pages) return true;
else return false;
}
virtual void print(int pages) = 0;
virtual void show() = 0;
};
class InkJetPrinter : public Printer {
int availableInk;
public:
InkJetPrinter(string m = " ", string ma = "", int a = 0, int i = 0) : Printer(m, ma, a) {
availableInk = i;
}
bool isValidInkJetPrint(int pages) {
if (availableInk>= pages) return true;
else return false;
}
void print(int pages) {
if (isValidPrint(pages)) {
if (isValidInkJetPrint(pages)) {
setPrintedCount(getPrintedCount() + pages);
setAvailableCount(getAvailableCount() - pages);
setAvailableInk(getAvailableInk() - pages);
cout << "프린트하였습니다" << endl;
}
else {
cout << "잉크가 부족하여 프린트할 수 없습니다." << endl;
}
}
else cout << "용지가 부족하여 프린트할 수 없습니다." << endl;
}
void show() {
cout << getModel() << ", " << getManufacturer() << ", 남은 종이" << getAvailableCount() << "남은 토너" << availableInk << endl;
}
int getAvailableInk() { return availableInk; }
void setAvailableInk(int availableInk){
this->availableInk = availableInk;}
};
class LaserPrinter : public Printer {
int availableToner;
public :
LaserPrinter(string m = "", string mo = "", int a = 0, int t = 0) : Printer(m, mo, a) {
availableToner = t;
}
bool isValidPrint(int pages) {
if (availableToner > pages) {
return true;
}
else return false;
}
bool isValidToner(int pages) {
if (availableToner >= pages) {
return true;
}
else { return false; }
}
void print(int pages) {
if (isValidPrint(pages)) {
if (isValidToner(pages)) {
setPrintedCount(getPrintedCount() + pages);
setAvailableCount(getAvailableCount() - pages);
cout << "프린트하였습니다." << endl;
}
else {
cout << "잉크가 부족해요" << endl;
}
}
else {
cout << "용지가 부족해요" << endl;
}
}
void show() {
cout << getModel() << ", " << getManufacturer() << ", 남은 종이" << getAvailableCount() << "남은 토너" << availableToner << endl;
}
};
int main() {
InkJetPrinter* ink = new InkJetPrinter("officejet v40", "HP", 5, 10);
LaserPrinter *laser = new LaserPrinter("SCX-6x45", "삼성전자", 3, 20);
cout << "현재 작동중인 2대의 프린터는 아래와 같다" << endl;
cout << "잉크젯";
ink->show();
cout << "레이저";
laser->show();
int printer, paper;
char ch;
while (true) {
cout << endl << "프린터(1:잉크젯, 2:레이저)와 매수 입력>>";
cin >> printer >> paper;
switch (printer) {
case 1:
ink->print(paper); break;
case 2:
laser->print(paper); break;
default:
break;
}
ink->show();
laser->show();
cout << "계속 프린트할거야?" << endl;
cin >> ch;
if (ch == 'n')break;
else continue;
}
return 0;
}
'2021-2학기 > C++' 카테고리의 다른 글
| 명품 c++ programming 실습 문제 10장 (0) | 2021.11.30 |
|---|---|
| C++ programming 8장 실습문제 (0) | 2021.11.18 |
| 명품 c++programming 7장 실습문제 (0) | 2021.11.13 |
| 프렌드와 연산자 중복 (0) | 2021.11.12 |
| 4장 (0) | 2021.10.26 |
Comments