Of this abstraction. The values for getRadius() or getCircumference() in the above illustration might be stored straight, or they could be calculated, it won't make a difference into the caller; the setters could or won't have Unwanted effects; it would not make a difference into the caller. Google is integrating https://propertyingurugram.in/stations-in-gurgaon-and-rewari-on-proposed-delhi-ahmedabad-bullet-train-corridor/