题解 | #四舍五入#

package base;

import java.util.Scanner;

public class Transfer {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

// 注意 hasNext 和 hasNextLine 的区别

while (in.hasNextDouble()) { // 注意 while 处理多个 case

double a = in.nextDouble();

int b = 0;

if ((a - (int) a) > 0.5)

b = (int) a + 1;

else

b = (int) a;

System.out.println(b);

}

}

}