Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned illustration may be stored specifically, or they could be calculated, it will not make any difference for the caller; the setters may possibly or won't have Negative effects; it won't subject for the caller. 近年来这方面的研究开发主要是围绕结构 、 合成 https://commercialshopsingurgaon.fitness.blog/