Of this abstraction. The values for getRadius() or getCircumference() in the above instance could be saved directly, or they might be calculated, it does not matter into the caller; the setters may well or won't have side effects; it would not make any difference to the caller. @Jenix In that https://propertyingurugram.in/destination-2026-gurugrams-own-metro-line-gets-key-green-signal/