Of this abstraction. The values for getRadius() or getCircumference() in the above example might be stored instantly, or they might be calculated, it will not make any difference to the caller; the setters could or may not have side effects; it would not make a difference to your caller. not https://propertiesyamunaexpressway.blogspot.com/2025/06/timeless-elegance-meets-urban-grandeur.html