Of the abstraction. The values for getRadius() or getCircumference() in the above instance may be stored straight, or they might be calculated, it does not matter for the caller; the setters may possibly or won't have Unwanted side effects; it will not make a difference on the caller. @Jenix In https://propertyingurugram.in/dlf-to-invest-%e2%82%b9200-cr-for-expanding-delhis-vasant-kunj-mall-in-luxe-push/