Of this abstraction. The values for getRadius() or getCircumference() in the above mentioned example may be saved instantly, or they could be calculated, it will not make any difference to the caller; the setters could possibly or may not have Uncomfortable side effects; it isn't going to make a difference https://propertyingurugram.in/demand-for-plots-and-independent-floors-stages-strong-comeback-in-pandemic-overtakes-apartments/