Fan (Shajed)

#include <bits/stdc++.h>
using namespace std;

class Fan
{
private:
    int speed;
    bool isOn;
    double radius;
    string color;
public:
    const int SLOW = 1, MEDIUM = 2, FAST = 3;
    Fan()
    {
        speed = SLOW;
        isOn = false;
        radius = 5;
        color = "blue";
    }
    void setSpeed(int spd)
    {
        speed = spd;
    }
    void setOn()
    {
        isOn = true;
    }
    void setRadius(double rds)
    {
        radius = rds;
    }
    void setColor(string clr)
    {
        color = clr;
    }

    string getSpeed()
    {
        if(speed == SLOW)
            return "SLOW";
        if(speed == MEDIUM)
            return "MEDIUM";
        if(speed == FAST)
            return "FAST";
    }
    bool getIsOn()
    {
        return isOn;
    }
    double getRadius()
    {
        return radius;
    }
    string getColor()
    {
        return color;
    }

    string toString()
    {
        string str;
        if(isOn)
        {
            str = str + "Speed : " + getSpeed() + "\n";
            str = str + "Color : " + getColor() + "\n";
            str = str + "Radius : " + to_string(getRadius()) + "\n\n";
        }
        else
        {
            str = str + "Color : " + getColor() + "\n";
            str = str + "Radius : " + to_string(getRadius()) + "\n";
            str = str + "fan is off\n\n";
        }
        return str;
    }
};

int main()
{
    Fan fan1, fan2;

    fan1.setSpeed(fan1.FAST);
    fan1.setRadius(10);
    fan1.setColor("yellow");
    fan1.setOn();

    fan2.setSpeed(fan2.MEDIUM);
    fan2.setRadius(5);
    fan2.setColor("blue");

    cout<<fan1.toString();
    cout<<fan2.toString();
    return 0;
}