java圆柱面积体积 scanner

import java.util.Scanner;

public class hello {
    public static void main(String[] args) {

        System.out.println("输入 半径");
        Scanner scanner = new Scanner(System.in);

        int r = scanner.nextInt();

        System.out.println("输入 高度");
        int h = scanner.nextInt();

        System.out.println("半径:" + r + "高度:" + h);
        scanner.close();

        int s = (int) (r * h * Math.PI);
        int v = s * h;

        System.out.println("圆柱面积" + s + "圆柱体积" + v);
    }
}