Share member variables between sub class : Inheritance « Class « C++






Share member variables between sub class

Share member variables between sub class
  
#include <iostream>
using namespace std;

class AreaClass {
public:
  double height;
  double width;
};

class Rectangle : public AreaClass {
public:
  Rectangle(double h, double w) { 
     height = h; 
     width = w; 
  }
  double area() { 
     return height * width; 
  }
};

class Isosceles : public AreaClass {
public:
  Isosceles(double h, double w) { 
     height = h; 
     width = w; 
  }
  double area() { 
     return 0.5 * width * height; 
  }
};

class cylinder : public AreaClass {
public:
  cylinder(double h, double w) { 
     height = h; 
     width = w; 
  }
  double area()
  { 
    return (2 * 3.1416 * (width/2) * (width/2)) + (3.1416 * width * height); 
  }
};

int main()
{
  Rectangle rectangleObject(10.0, 5.0);
  Isosceles triangleObject(4.0, 6.0);
  cylinder cylinderObject(3.0, 4.0);

  cout << "Rectangle: " << rectangleObject.area() << endl;
  cout << "Triangle: " << triangleObject.area() << endl;
  cout << "Cylinder: " << cylinderObject.area() << endl;

  return 0;
}


           
         
    
  








Related examples in the same category

1.Public inheritancePublic inheritance
2.Three level public inherianceThree level public inheriance
3.Make field public during private inheritance
4.Demonstrate inheriting a protected base class.Demonstrate inheriting a protected base class.
5.A simple example of inheritance.A simple example of inheritance.
6.Virtual functions retain virtual nature when inherited.Virtual functions retain virtual nature when inherited.
7.Inherit base as privateInherit base as private
8.call contructor from parent class
9.Cascade constructor and destructor call
10.Call parent constructor and pass in parameter
11.Access control under inheritance