public class Circle {
    private double radius;

    public Circle(double radius) {
        this.radius = radius;
    }

    public void setRadius(double radius) {
        radius = radius;
    }

    public double getArea() {
        return Math.PI * this.radius * this.radius;
    }
}

After the following code is executed, what is the area returned by getArea()?

Circle c = new Circle(1.0);
c.setRadius(2.0);
System.out.println(c.getArea());