명품 C++ Programming 실습문제 8장 4번

#include <iostream>
#include <string>
using namespace std;
 
class Point {
    int x, y;
public:
    Point(int x, int y) { this->x = x; this->y = y; }
    int getX() { return x; }
    int getY() { return y; }
protected:
    void move(int x, int y) { this->x = x; this->y = y; }
};
 
class ColorPoint :public Point {
    string color;
public:
    ColorPoint(int x = 0, int y = 0, string color = "BLACK") :Point(x, y) { this->color = color; }
    void setPoint(int x, int y) { move(x, y); }
    void setColor(string color) { this->color = color; }
    void show() { cout << color << "색으로 (" << getX() << ", " << getY() << ")에 위치한 점입니다.\n"; }
};
 
int main() {
    ColorPoint zeroPoint;
    zeroPoint.show();
 
    ColorPoint cp(5, 5);
    cp.setPoint(10, 20);
    cp.setColor("BLUE");
    cp.show();
}