Of this abstraction. The values for getRadius() or getCircumference() in the above case in point can be stored specifically, or they might be calculated, it does not subject on the caller; the setters could or won't have Unwanted effects; it isn't going to subject to your caller. I am aware https://m3mplots.fashion.blog/2025/06/01/touch-the-skyline-of-luxury-m3m-altitude/