题解 | #四舍五入#

解题思路就是使用math的四舍五入方法 round()

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);
    }
}