Question

C++

Develop a Circle class that, like the Rectangle class above, provides methods to compute perimeter and area. The Rectangle instance variables are not appropriate for circles; specifically, circles do have corners, and there is no need to specify a width and height. A center point and a radius more naturally describe a circle. Build your Circle class appropriately.

Answer 1

//C++ program

#include<iostream>
using namespace std;

typedef struct Point{
   float x;
   float y;
}point;

class Circle{
   private:
       float radius;
       point center;
   public:
       Circle(){
           radius = 0;
           center.x = 0;
           center.y = 0;
       }
       Circle(float x , float y, float r){
           center.x = x;
           center.y = y;
           radius = r;
       }
       void setCenter(float x , float y){
           center.x = x;
           center.y = y;
       }
      
       point getCenter(){
           return center;
       }
      
       void setRadius(float r){
           radius = r;
       }
       float getRadius(){
           return radius;
       }
       float Perimeter(){
           return 2*3.14*radius;
       }
       float Area(){
           return 3.14*radius*radius;
       }
};