Of this abstraction. The values for getRadius() or getCircumference() in the above mentioned instance may very well be stored straight, or they may be calculated, it doesn't matter into the caller; the setters could or might not have Unwanted effects; it will not make any difference for the caller. Explore https://propertiesnoidacentral.blogspot.com/2025/06/crafted-for-visionaries-smart-world.html