5. (A) Design a class for single level inheritance using public and private type derivation

5. (A) Design a class for single level inheritance using public and private type derivation

Single level inheritance using public

	#include<iostream.h> #include<conio.h>
	class Shape
	{
	protected:
	float width, height;
	public:
	void set_data (float a, float b)
	{
	width = a;
	height = b;
	}
	};
	class Rectangle: public Shape
	{
	public:
	float area ()
	{
	return (width * height);
	}
	};
	class Triangle: public Shape
	{
	public:
	float area ()
	{
	return (width * height / 2);
	}
	};
	void main ()
	{
	clrscr();
	Rectangle rect;
	Triangle tri;
	rect.set_data (5,3);
	tri.set_data (2,5);
	cout <<"\narea of reactangle= "<< rect.area() << endl;
	cout <<"\narea of triangle= "<< tri.area() << endl;
	getch();
	}

Single level inheritance using private

	#include<iostream.h> #include<conio.h>
	class Shape
	{
	protected:
	float width, height;
	public:
	void set_data (float a, float b)
	{
	width = a;
	height = b;
	}
	};
	class Rectangle: private Shape
	{
	public:
	float area ()
	{
	set_data (5,3);
	return (width * height);
	}
	};
	class Triangle: private Shape
	{
	public:
	float area ()
	{
	set_data (2,5);
	return (width * height / 2);
	}
	};
	void main ()
	{
	clrscr();
	Rectangle rect;
	Triangle tri;
	cout <<"\narea of reactangle= "<< rect.area() << endl;
	cout <<"\narea of triangle= "<< tri.area() << endl;
	getch();
	}