Notes

/*Write a class that can calculate the area for the following shapes:
Square, Circle, Rectangle
The class name should be SHAPE. The class constructor must accept 5 parameters as follows:
SHAPE(int square_w, int square_h, int circle_r, int rectangle_w, int rectangle_h). You should also have another constructor that takes 0 parameters and initializes the class attributes (all of them) to 0.
Make sure the class attributes are set to private and class methods are set to public.
Write a modifier for each attribute. */

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

class SHAPE {
private:
double radius, height, width;

public:
double area;
SHAPE(int, int, int, int, int);
SHAPE();


int setWidthAndHeight(int, int);

int setRadius(int);

};

SHAPE::SHAPE() {
radius = 0;
height = 0;
width = 0;
area = 0;
}

SHAPE::SHAPE(int square_w, int square_h, int circle_r, int rectangle_w, int rectangle_h)
{
width = square_w;
height = square_h;
radius = circle_r;
width = rectangle_w;
height = rectangle_h;
}

int SHAPE::setWidthAndHeight(int height, int width) {
area = height * width;
return area;
}

int SHAPE::setRadius(int radius) {
area = radius * radius * 3.14159265;
return area;
}

string myToUpper(std::string input) {
for (auto &it : input) {
it = ::toupper(it);
}
return input;
}

int main()
{

string choice;
SHAPE shape;
cout << "This program solves the area of circles, squares, and rectangles! nPlease select which shape you would like to solve: ";
cin >> choice;

if (myToUpper(choice) == "SQUARE") {
int width;
cout << "Type the lenght of the square ";
cin >> width;
cout << "Area of square : " << shape.setWidthAndHeight(width, width) << endl;
}

else if (myToUpper(choice) == "RECTANGLE") {
int width, height;
cout << "Type width and height of the rectangle ";
cin >> width >> height;
cout << "Area of a rectangle: " << shape.setWidthAndHeight(width, height) << endl;
}

else if (myToUpper(choice) == "CIRCLE") {
int radius;
cout << "What is the radius of the circle ";
cin >> radius;
cout << "Area of a circle: " << shape.setRadius(radius) << endl;
}

else {
cout << "Sorry, that's not one of the options.n";
}

return 0;
}