Of this abstraction. The values for getRadius() or getCircumference() in the above instance can be stored immediately, or they could be calculated, it will not make any difference for the caller; the setters may or may not have Unwanted side effects; it will not make any difference to your caller. https://propertyingurugram.in/dlf-expects-high-consumer-interest-for-luxury-residential-low-rise-projects/