Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned example may very well be saved directly, or they may be calculated, it doesn't make a difference into the caller; the setters could or may not have Negative effects; it won't make any difference on the caller. https://propertyingurugram.in/tarc-to-demolish-central-delhi-mall-for-residential-project-invest-rs-700-crore/