Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned example might be stored immediately, or they could be calculated, it isn't going to issue on the caller; the setters may possibly or may not have side effects; it won't make a difference for the caller. There's https://m3mdwarkaexpresswaysector107.blogspot.com/2025/05/m3m-manesar-gurgaon-future-of-elegant.html