Of this abstraction. The values for getRadius() or getCircumference() in the above example may very well be saved specifically, or they may be calculated, it would not issue to the caller; the setters could possibly or may not have side effects; it doesn't make any difference to the caller. 近年来这方面的研究开发主要是围绕结构 https://sscendanaandkiavasgurgaon.blogspot.com/2025/07/m3m-industrial-plots-sector-9-manesar.html