题解 | 四舍五入

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;
        if(d-(int)d>=0.5){
            i = (int)d +1;
        }
        else i = (int)d;

        System.out.println(i);
    }
}

挺简单的 ，and 发现了更好的答案：

}