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/**

* Description:

* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>

* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee

* <br/>This program is protected by copyright laws.

* <br/>Program Name:

* <br/>Date:

* @author Yeeku.H.Lee kongyeeku@163.com

* @version 1.0

*/

public class Circle extends Shape

{

private double radius;

public Circle(String color , double radius)

{

super(color);

this.radius = radius;

}

public void setRadius(double radius)

{

this.radius = radius;

}

// 重写Shape类的的计算周长的抽象方法

public double calPerimeter()

{

return 2 * Math.PI * radius;

}

// 重写Shape类的的返回形状的抽象方法

public String getType()

{

return getColor() + "圆形";

}

public static void main(String[] args)

{

Shape s1 = new Triangle("黑色" , 3 , 4, 5);

Shape s2 = new Circle("黄色" , 3);

System.out.println(s1.getType());

System.out.println(s1.calPerimeter());

System.out.println(s2.getType());

System.out.println(s2.calPerimeter());

}

}