第二章编程练习题2.2

import java.util.Scanner;


public class Main2 {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		double radius = input.nextDouble();//圆的半径
		double length = input.nextDouble();//圆的高度
		double area = Math.PI* radius *radius;
		double volume =area * length;
		System.out.println("面积"+area+"---"+"体积"+volume);
	}
	
}