Of this abstraction. The values for getRadius() or getCircumference() in the above illustration may very well be saved instantly, or they may be calculated, it does not matter towards the caller; the setters may well or might not have Unwanted effects; it isn't going to issue into the caller. See https://propertyingurugram.in/haryana-removes-provision-of-freezing-of-50-saleable-area-in-ddjay-housing-scheme/