Class Header File

class Rectangle {
private://Data Members are private
	double length;
	double width;
public://Functions are private
	Rectangle();//constructor
	Rectangle(double, double); // parametrized constructor
	~Rectangle(); // destructor
	void setLength(double);
	void setWidth(double);
	double getLength()const;
	double  getWidth()const;
	double getArea()const;
	double getPerimeter()const;
	void draw()const;
	//******************************
	//const functions are those in which we cannot change the value of data members(length/width)
	//for e.g:all getters functions 
	//**constructors ,destructors ,and settors(mutators) can not be const!
	//******************************
};