Of this abstraction. The values for getRadius() or getCircumference() in the above illustration can be saved immediately, or they could be calculated, it isn't going to subject to your caller; the setters may well or won't have side effects; it does not matter into the caller. 近年来这方面的研究开发主要是围绕结构 、 合成 、 https://buycommercialshopingurgaon.finance.blog/2025/05/12/m3m-antalya-hills-sector-79-gurgaon-modern-luxury-project/