//Driver.java

public class Driver
{
    public static void display
    (
        Measurable figure
    )
    {
        double perimeter = figure.getPerimeter();
        double area = figure.getArea();
        System.out.println("Perimeter = " + perimeter + "; area = " + area);
    }

    public static void main(String[] args)
    {
        Measurable box = new Rectangle(5.0, 5.0);
        Measurable disc = new Circle(5.0);
        display(box);
        display(disc);
    }
}