写出一个程序，接受一个正浮点数值，输出该数值的近似整数值。如果小数点后数值大于等于5,向上取整；小于5，则向下取整。

import java.util.Scanner;
 
public class Main{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        float num = scan.nextFloat();
        System.out.println(getInt(num));
    }
     
    public static int getInt(float a){
        int b = (int) a;
        if((a-b)>=0.5)
            return (b+1);
        else
            return b;
    }
}
添加笔记