Of this abstraction. The values for getRadius() or getCircumference() in the above mentioned case in point could be stored specifically, or they could be calculated, it isn't going to issue to the caller; the setters could or might not have side effects; it would not matter into the caller. Magicbricks https://propertyingurugram.in/gurugram-sector-80-emerges-as-ncrs-next-luxury-real-estate-hub/