题解 | #牛牛学说话之-浮点数#
牛牛学说话之-浮点数
http://www.nowcoder.com/practice/7c3bf58fac1a4eb69fa32c2d2c379bac
import java.util.Scanner;
import java.text.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
float a = sc.nextFloat();
DecimalFormat decimalFormat=new DecimalFormat("0.000");
System.out.println(decimalFormat.format(a));
}
}