08 클래스(2)-생성자와 소멸자

1.Point 클래스

(1)Point.h

#pragma once
class Point
{
private:
	int x;
	int y;

public:
	~Point(); //소멸자
	Point();
	Point(const int& X, const int& Y);
	void init(const int& X, const int& Y);
	void setXY(const int& X, const int& Y);
	void move(const int& dist);
	void showPoint() const;
	int getX() const;
	int getY() const;


};

 

(2)Point.cpp

#include "Point.h"
#include<iostream>
using namespace std;
Point::~Point() {
	cout << "포인트 소멸자" << endl;
}

Point::Point()
	:x(0),y(0)
{
	cout << "디폴트 생성자" << endl;
}
Point::Point(const int& X, const int& Y) 
	:x(X),y(Y)
{
	cout << "인자있는 생성자" << endl;
}
void Point::move(const int& dist) {
	x += dist;
	y += dist;

}
void Point::init(const int& X, const int& Y) {
	x = X;
	y = Y;
}
void Point::showPoint() const {
	cout << x << "," << y << endl;
}
int Point::getX()const {
	return x;
}
int Point::getY()const {
	return y;
}

 

2.Rectangle 클래스

(1)Rectangle.h

#pragma once
#include"Point.h"
class Rectangle
{
private:
	Point LT;
	Point RB;
public:
	~Rectangle();
	Rectangle();
	Rectangle(const int& x1, const int& y1, const int&x2, const int& y2);
	void init(const int& x1,const int& y1,const int&x2,const int& y2);
	void showRectangle()const;
	Point getLT() const;
	Point getRB() const;
	int getArea(const Point& LT, const Point&RB);



};

 

(2)Rectangle.cpp

#include "Rectangle.h"
#include<iostream>
using namespace std;
Rectangle::~Rectangle() {
	cout << "Rectangle 소멸자" << endl;
}
Rectangle::Rectangle()
	:LT(100,100),RB(200,200)
{
	cout << "Rectangle 디폴트 생성자" << endl;
	LT.init(100, 100);
	RB.init(100, 100);
}
Rectangle::Rectangle(const int& x1, const int& y1, const int&x2, const int& y2) 
	:LT(x1,y1),RB(x2,y2)
{
	cout << "Rectangle 인자있는 생성자" << endl;
}

void Rectangle:: init(const int& x1, const int& y1, const int&x2, const int& y2) {
	LT.init(x1, y1);
	RB.init(x2, y2);

}
void Rectangle::showRectangle()const {
	LT.showPoint();
	RB.showPoint();
}
Point Rectangle::getLT() const {
	return LT;
}
Point Rectangle::getRB() const {
	return RB;
}
int Rectangle::getArea(const Point& LT, const Point&RB) {
	return (RB.getX() - LT.getX())*(RB.getY() - LT.getY());
}

 

3. main 함수

#include<iostream>

#include"Rectangle.h"
using namespace std;

void move(Point& pt, const int& dist) {
	pt.move(dist);
}
int main() {
	//Point pt1;
	//pt1.init(100, 100);
	//pt1.showPoint();
	//move(pt1, 10);

	//Rectangle rect;
	//rect.init(100, 100, 200, 200);
	//rect.showRectangle();

	//Point pt;
	//Point pt2(10, 20);
	//Point* p = new Point();
	//delete p;

	Rectangle rect(100, 100, 200, 200);


	return 0;
}