Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned example may be stored directly, or they could be calculated, it would not make a difference for the caller; the setters might or won't have Unintended effects; it doesn't make any difference for the caller. Note: If https://propertyingurugram.in/why-ganga-realty-liv-89-sector-89-gurgaon-is-the-ideal-choice-for-luxury-and-comfort/