Single Inheritance

In this case of inheritance, a derived class inherits from only one base class. The single inheritance is the simplest form of Inheritance. 

In addition, single inheritance refers to a form of inheritance where there is only one base class and one derived class. 

Syntax:

class derived_class_name: visibility_mode base_class_name 

{ 

    :::::::::::::: // member of derived class

 };

Example:

#include <iostream.h>
// Base class
class Shape 
{
   public:
      void setWidth(int w)
      {
         width = w;
      }
      void setHeight(int h)
      {
         height = h;
      }
   protected:
      int width;
      int height;
};

// Derived class
class Rectangle: public Shape
{
   public:
      int getArea()
      { 
         return (width * height); 
      }
};

void main()
{
   Rectangle Rect;
 
   Rect.setWidth(5);
   Rect.setHeight(7);

   // Print the area of the object.
   cout << "Total area: " << Rect.getArea() << endl;

   getch();
}