Of this abstraction. The values for getRadius() or getCircumference() in the above mentioned example could possibly be stored specifically, or they could be calculated, it would not issue to your caller; the setters may or won't have Negative effects; it will not make a difference to your caller. If the https://medium.com/@CommercialPropertyGurgaon/smart-world-sky-arc-defines-urban-elegance-in-sector-69-gurgaon-fc9022cf2707?postPublishedType=initial