题解 | #四舍五入#

解题思路

考察基础函数，Math包下的round用于四舍五入，ceil用于向上取整，floor用于向下取整。

代码实现

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double d= scanner.nextDouble();

        //write your code here......
        int i = (int)Math.round(d);

        System.out.println(i);
    }
}