Of the abstraction. The values for getRadius() or getCircumference() in the above case in point might be saved directly, or they may be calculated, it does not issue on the caller; the setters could possibly or won't have Uncomfortable side effects; it will not make any difference to your caller. https://propertyingurugram.in/landmark-group-to-invest-rs-400-cr-for-construction-of-gurugram-housing-project/