Of the abstraction. The values for getRadius() or getCircumference() in the above example could be saved immediately, or they may be calculated, it will not make a difference to the caller; the setters could possibly or may not have Unwanted effects; it does not make any difference on the caller. https://newresidentialprojectnoida.blogspot.com/2025/06/transforming-workspaces-into-landmarks.html