Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned example may be stored straight, or they could be calculated, it will not subject to your caller; the setters might or may not have Uncomfortable side effects; it doesn't issue to your caller. Subscribe to The united https://medium.com/@m3mhomesgurgaon/where-elevation-meets-excellence-smart-world-sky-arc-gurgaon-3bbf11fff482