Chapter 16.4, Problem 16.11CP

In the following Rectangle class declaration, the width, length, and area members are of type double. Rewrite the class as a template that will accept any numeric type for these members.

class Rectangle

{

private:

double width:

double length;

double area;

public:

void setData(double w, double l)

{ width = w; length =l;}

void calcArea()

{ area = width * length; }

double getWidth()

{ return width; }

double getLengthQ

{ return length; }

double getArea()

{ return area; }