import java.io.File;

/**

* Created by dshook on 5/6/15.

*/

public class Circle implements Measurable{

private double radius;

public Circle() {

this.radius = 10.0;

}

public void setRadius(double r) {

}

public Circle(double r) {

if (r < 0) {

throw new IllegalArgumentException();

}

this.radius = r;

}

public static double getArea(double r) {

return Math.PI * r * r;

}

@Override

public double getArea() {

return Math.PI * this.radius * this.radius;

}

@Override

public double getPerimeter() {

return 2 * Math.PI * this.radius;

}

public static void main(String[] args) {

Measurable circle = MeasurableFactory.getShape(1);

System.out.println(circle.getArea());

Measurable square = MeasurableFactory.getShape(4);

System.out.println(square.getArea());

}

}