백준 1152번 자바 성공코드

import java.util.Scanner;
 
public class Main {
    
    public static void main(String[] args)  {
        
        Scanner scanner = new Scanner(System.in);
 
        String num=scanner.nextLine().trim();
        
        String[] name = num.split(" ");
        
        
        
        if(num.isEmpty())
            System.out.println(0);
        else
            System.out.println(name.length);
}}