题解 | #取近似值#
取近似值
https://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
import java.util.Scanner; import java.math.*; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); String s = in.nextLine(); BigDecimal bigDecimal = new BigDecimal(s); BigDecimal bigDecimal1 = bigDecimal.setScale(0, BigDecimal.ROUND_HALF_UP); System.out.println(bigDecimal1); } }