#include<stdlib.h>

#include<iostream>

using namespace std;

class Coordinate

{

public:

? Coordinate();

? ~Coordinate();

? void setX(int x);

? int getX();

? void setY(int y);

? int getY();

?private:

? int m_iX;

? int m_iY;

};

Coordinate::Coordinate()

{

cout<<"Coordinate"<<endl;

}

Coordinate::~Coordinate()

{

cout<<"~Coordinate"<<endl;

}

void Coordinate::setX(int x)

{

m_iX=x;

}

int Coordinate::getX()

{

return m_iX;

}

void Coordinate::setY(int y)

{

m_iY=y;

}

int Coordinate::getY()

{

return m_iY;

}

class Line

{

public:

Line();

~Line();

void setA(int x,int y);

void setB(int x,int y);

void printInfo();

private:

Coordinate m_coorA;

Coordinate m_coorB;

};

Line::Line()

{

cout<<"Line"<<endl;

}

Line::~Line()

{

cout<<"~Line"<<endl;

}

void Line::setA(int x,int y)

{

m_coorA.setX(x);

m_coorA.setY(y);

}

void Line::setB(int x,int y)

{

m_coorB.setX(x);

m_coorB.setY(y);

}

void Line::printInfo()

{

cout<<"("<<m_coorA.getX()<<","<<m_coorA.getY()<<")"<<endl;

cout<<"("<<m_coorB.getX()<<","<<m_coorB.getY()<<")"<<endl;

}

int main(void)

{

Line*p=new Line();

delete p;

p=NULL;

system("pause");

return 0;

}