题解 | #字符串最后一个单词的长度#

import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        String s = scan.nextLine();
        System.out.println(lastWordLength(s));
    }
    
    public static int lastWordLength(String str){
        if(str == null || "".equals(str) || str.length() > 5000) return 0;
        String[] strArrar = str.split(" ");
        return strArrar[strArrar.length - 1].length();
    }
}