Of the abstraction. The values for getRadius() or getCircumference() in the above illustration may be stored directly, or they could be calculated, it doesn't matter into the caller; the setters might or might not have side effects; it won't issue to the caller. 近年来这方面的研究开发主要是围绕结构 、 合成 、 表征和催化反应等方面开展的. It'd look https://m3mscogurgaon.politics.blog/