题解 | 字符串最后一个单词的长度

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.nextLine();
        String[] str2 = str.split(" ");
        String str3 = str2[str2.length - 1];
        int len = str3.length();
        System.out.println(len);

        scanner.close();
    }
}