Of this abstraction. The values for getRadius() or getCircumference() in the above example may be saved specifically, or they might be calculated, it does not make any difference to the caller; the setters may or might not have Uncomfortable side effects; it would not make any difference to your caller. https://propertyingurugram.in/nitin-gadkari-to-launch-cloverleaf-that-links-2-e-ways-southern-peripheral-road-next-month/