Java 实现柱体体积计算：周长乘高加两倍面积

public class Column extends Rectangle { int height; public Column(int length, int wide, int height) { super(length, wide); this.height = height; } public void surfaceArea() { } public void volume() { int perimeter = (length + wide) * 2; int area = length * wide; int volume = perimeter * height + 2 * area; System.out.println("周长乘高加上两倍的面积为：" + volume); } }