ADD file via upload

Rectangle.java

@@ -0,0 +1,51 @@
+package 矩形与正方形（LSP）;
+
+
+/**
+ * 鐭╁舰绫伙紙闈?public锛?
+ * @author 方初阳
+ * @version 1.0
+ * @created 23-10月-2025 20:04:42
+ */
+class Rectangle implements Shape {
+
+	private double height;
+	private double width;
+
+	public Rectangle(){
+
+	}
+
+	public void finalize() throws Throwable {
+
+	}
+	/**
+	 * 
+	 * @param width
+	 * @param height
+	 */
+	public Rectangle(double width, double height){
+
+	}
+
+	@Override
+	public double getArea(){
+		return 0;
+	}
+
+	/**
+	 * 
+	 * @param height
+	 */
+	public void setHeight(double height){
+
+	}
+
+	/**
+	 * 
+	 * @param width
+	 */
+	public void setWidth(double width){
+
+	}
+}//end Rectangle