What is the output of this code?

public class Circle {
    private double radius;
    public double getRadius() {
        return radius;
    }
    public void setRadius(double radius) {
        if (radius > 0) {
            this.radius = radius;
        }
    }
}

public class Test {
    public static void main(String[] args) {
        Circle circle = new Circle();
        circle.setRadius(-5);
        System.out.println(circle.getRadius());
    }
}