Of this abstraction. The values for getRadius() or getCircumference() in the above example may be saved directly, or they might be calculated, it won't subject into the caller; the setters may well or might not have side effects; it doesn't make any difference towards the caller. Xbox Live and Microsoft https://whitelandsector103gurgaon.art.blog/2025/07/08/smart-world-one-dxp-sector-113-gurgaon-leads-the-future-of-intelligent-living/