non-square rhombus non-square rectangle isosceles

non-square rhombus non-square rectangle isosceles square When is a rhombus a square?什么意思 从矩形类 Rectangle ,继承出正方形类Square,重写Square类,考虑Square的构造方法该如何写； I will make a hat ( ) a rectangle and a square A on B to C w eighty fifty forty thirty rectangle square triangle 这些单词是剑桥英 non binding NON SPARATE non-flowering non-Javadoc non-diversifiable square是什么意思