1: //Driver.java 2: 3: public class Driver 4: { 5: public static void display 6: ( 7: Measurable figure 8: ) 9: { 10: double perimeter = figure.getPerimeter(); 11: double area = figure.getArea(); 12: System.out.println("Perimeter = " + perimeter + "; area = " + area); 13: } 14: 15: public static void main(String[] args) 16: { 17: Measurable box = new Rectangle(5.0, 5.0); 18: Measurable disc = new Circle(5.0); 19: display(box); 20: display(disc); 21: } 22: }