(열혈 C++ 프로그래밍) 문제 04-2

다양한 클래스의 정의

 

 

 

 

 

 

 

문제1

#include <iostream>
using namespace std;

class Point
{
private:
	int xpos, ypos;
public:
	void Init(int x, int y){
		xpos = x;
		ypos = y;
	}
	void ShowPointInfo() const {
		cout << "[" << xpos << ", " << ypos << "]" << endl;
	}
};

class Circle
{
private:
	Point dot;
	int radius;
public:
	void Init(int x, int y, int r) {
		dot.Init(x, y);
		radius = r;
	}
	void ShowCircleInfo() const {
		cout << "radius: " << radius << "\n";
		dot.ShowPointInfo();
	}
};

class Ring
{
private:
	Circle innerCircle, outerCircle;
public:
	void Init(int x1, int y1, int r1, int x2, int y2, int r2) {
		innerCircle.Init(x1, y1, r1);
		outerCircle.Init(x2, y2, r2);
	}
	void ShowRingInfo() {
		cout << "Inner Circle Info...\n";
		innerCircle.ShowCircleInfo();
		
		cout << "Outer Circle Info...\n";
		outerCircle.ShowCircleInfo();
	}
};

int main(void)
{
	Ring ring;
	ring.Init(1, 1, 4, 2, 2, 9);
	ring.ShowRingInfo();
	return 0;
}