//********************************************************************

// FiIe: figure. h

// Abstract class figure contains operators and attributes common

// to all figures.

//********************************************************************

#ifndef FIGURE_H

#define FIGURE_H

class figure

{

// Member functions (common to all figures)

public:

// Read figure attributes

virtual void readFigure ( ) = 0 ;

// Compute the area

virtual void computeArea ( ) = 0 ;

// Compute the perimeter

virtual void computePerim( ) = 0;

virtual void displayFig( );

// Display information about the figure

// Attributes common to all figures

protected:

float area; // The area of the figure

float perimeter; // The perimeter of the figure

};

#endif