shaper.java

来自「java小程序」· Java 代码 · 共 9 行

public class ShapeR extends Shape
{
private double w,h;
public ShapeR() {w=0;h=0;}
public ShapeR(double ww,double hh){w=ww;h=hh;}
public double perimeter(){return (w+h)*2;}
public String getType(){return "矩形";}
}