Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned illustration can be stored straight, or they could be calculated, it will not subject to the caller; the setters might or might not have Unwanted effects; it doesn't matter to the caller. Ways to routinely escape properties https://readytomoveservicedapartmentsnoida.blogspot.com/2025/06/transforming-workspaces-into-landmarks.html