Point 클래스를 상속받는 ColorPoint 클래스

#include <iostream>
#include <string>
using namespace std;

class Point {
	int x, y; 
public:
	void set(int x, int y) { this->x = x; this->y = y; }
	void showPoint() {
		cout << "(" << x << "," << y << ")" << endl;
	}
};

class ColorPoint : public Point { 
	string color;
public:
	void setColor(string color) { this->color = color; }
	void showColorPoint();
};

void ColorPoint::showColorPoint() {
	cout << color << ":";
	showPoint(); 
}

int main() {
	cout << "2018305065 전유정" << endl << endl;
	Point p; 
	ColorPoint cp1, cp2;
	cp1.set(3, 4);
	cp1.setColor("Red"); 
	cp1.showColorPoint();
	cp1.set(10, 100);
	cp1.setColor("Blue");
	cp1.showColorPoint();
}