In the following Rectangle class declaration, the width, length, and area members are of...

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 getLength()

{ return length; }

double getArea()

{ return area; }

};