用JAVA编写程序，输入半径和高，通过圆柱的底面积公式和体积公式来计算圆柱的底面积和体积！

eg:

代码：

import java.util.Scanner;
public class bb{
public static void main(String[] args){
　　final double PI = 3.14159;
　　System.out.print("please input radius and height:");
　　Scanner input = new Scanner(System.in);　　
　　double radius = input.nextDouble();
　　double height = input.nextDouble();
　　double area = PI * radius * radius;
　　double volumn = area * height;
　　System.out.println("The area is "+area);
　　System.out.println("The volumn is "+volumn);
}
}

结果:

计算圆柱的底面积和体积