package 矩形与正方形(LSP); /** * 闈㈢Н璁$畻宸ュ叿绫伙紙闈?public锛? * @author 方初阳 * @version 1.0 * @created 23-10月-2025 20:05:04 */ class ShapeCalculator { public ShapeCalculator(){ } public void finalize() throws Throwable { } /** * * @param shape */ public double calculateArea(Shape shape){ return 0; } }//end ShapeCalculator