题解 | #四舍五入#

三元运算符的知识点，但我觉得+0.5然后强转的那个更精辟

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 = ((d-(int)d) > 0.5 ? ((int)d+1) : (int)d);

    System.out.println(i);
}

}