> Compile Error
> 
> Main.java:5: class HangOver is public, should be declared in a file named HangOver.java
> public class HangOver {
>        ^
> 1 error
> 程序如下
> package HangOver;
>  
> import java.util.Scanner;
> 
> public class HangOver {
> 
> 	
> 	public static void main(String[] args) {
> 		float n, length, getNumber = 0;
> 		Scanner getNumber1 = new Scanner(System.in);
> 		getNumber = getNumber1.nextFloat();
> 		for (n = 1, length = 0; length < getNumber; n++) {
> 			length = length + 1 / (n + 1);
> 
> 		}
> 		System.out.println(n - 1);
> 
> 	}
> 
> }
> 
>