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  1. #include <iostream>
  2. using namespace std;
  3. class Rectangle;
  4.  
  5. class Circle{
  6. float radius;
  7. float area;
  8.  
  9. public:
  10.     Circle(float r)
  11.     {
  12.         radius = r;
  13.         area =3.1416*radius*radius;
  14.     }
  15.     void display_Circle()
  16.     {
  17.         cout<<"Area of Circle : " <<area<<endl;
  18.     }
  19.     friend void compare(Circle c, Rectangle r);
  20.  
  21. };
  22. class Rectangle
  23. {
  24.    float length;
  25.    float width;
  26.    float area;
  27.  
  28.    public:
  29.    Rectangle(float l, float w)
  30.    {
  31.        length = l;
  32.        width = w;
  33.        area = length * width;
  34.    }
  35.    void display_Rectangle()
  36.     {
  37.         cout<<"Area of Rectangle : " <<area<<endl;
  38.     }
  39.     friend void compare(Circle c, Rectangle r);
  40.  
  41. };
  42. void compare(Circle c, Rectangle r)
  43. {
  44.     if (c.area == r.area)
  45.     {
  46.         cout<<"Area of Circle and Rectangla are Equal" <<endl;
  47.     }
  48.     else if(c.area>r.area)
  49.     {
  50.         cout<<"Area of Circle is Larger" <<endl;
  51.     }
  52.     else
  53.     {
  54.         cout<<"Area of Rectangle is Larger" <<endl;
  55.     }
  56.  
  57. }
  58.  
  59.  
  60. int main()
  61. {
  62.     Circle obj1(2.0);
  63.     Rectangle obj2(2.0,2.6);
  64.     obj1.display_Circle();
  65.     obj2.display_Rectangle();
  66.     compare(obj1, obj2);
  67.  
  68. return 0;
  69. }
  70.  
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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Area of Circle : 12.5664
Area of Rectangle : 5.2
Area of Circle is Larger
https://ideone.com/MseWB3
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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