Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned example may very well be stored immediately, or they could be calculated, it will not matter into the caller; the setters may or won't have Unwanted effects; it won't make a difference on the caller. Google is https://propertyingurugram.in/hsvp-to-develop-11-new-sectors-in-gurugram-dist/