实验八 接口

package 实验包;

public class interface_test {  

public static void main (String[] arges){  

yuanzhui a=new yuanzhui(2,5,6);  

yuanzhui b=new yuanzhui(1,3,3);  

System.out.println(a.Area());

 System.out.println(b.Area());  

System.out.println(a.volume());  

System.out.println(b.volume());  

System.out.println("体积较大的是："+Math.max(a.volume(), b.volume()));  

}

}

class yuanzhui implements Volume,Area{  

protected double r;

 protected double l;  

protected double h;  

public yuanzhui(double r,double l,double h){

 this.r=r;

 this.l=l;  

this.h=h;

 }  

public double volume(){  

return Math.PI*Math.pow(r,2)*h/3;

 }  

public double Area(){  

return Math.PI*this.r*this.r+this.r*this.l;

 } }

interface Volume{

 public double volume();

}

interface Area{

 public double Area();

}

 

 心得体会

不太会做这个实验，在同学的帮助下完成

以后会提前交作业，发誓不会再这么晚交。