Of the abstraction. The values for getRadius() or getCircumference() in the above case in point could be saved specifically, or they might be calculated, it won't make a difference towards the caller; the setters could possibly or may not have Negative effects; it does not matter on the caller. @Jenix https://propertyingurugram.in/gurgaon-real-estate-alert-now-buyers-have-to-spend-more-for-gurugram-properties-here-is-why/