浮点数取近似数

 

import java.io.*;

import java.util.*;

public class Main {

public static void main(String[] args) throws IOException {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

int res = 0;

String str = br.readLine();

StringBuilder sb = new StringBuilder();

String[] split = str.split("\\.");

sb.append(split[0]);

if (split[1].toCharArray()[0] < '5') {

res = Integer.parseInt(sb.toString());

} else {

res = Integer.parseInt(sb.toString()) + 1;

}

System.out.println(res);

}

}