Java浮点除法

Java解决浮点除法

import java.util.Scanner;
import java.text.DecimalFormat;

public class Main{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        DecimalFormat res  = new DecimalFormat("0.000");
        System.out.println(res.format((float)a/b));
    }
}