Interface.java

interface Drawable {
    void draw();
}

interface Resizable {
    void resize(double factor);
}

class Circle implements Drawable, Resizable {
    double radius = 5.0;

    @Override
    public void draw() {
        System.out.println("Drawing a circle with radius: " + radius);
    }

    @Override
    public void resize(double factor) {
        radius *= factor;
        System.out.println("Resized circle radius: " + radius);
    }

}

public class Main {
    public static void main(String[] args) {
        Circle circle = new Circle();
        circle.draw();
        circle.resize(2);
        circle.draw();
    }
}