计算字符串最后一个单词的长度，单词以空格隔开。 java算法

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
    Scanner in = new Scanner(System.in);
    String s = in.nextLine();
    CodeLength(s);
 
}
public static void CodeLength(String s){
    String [] str = s.split(" ");
    int length = str.length;
    System.out.println(str[length-1].length());
}
}

方法二：

import java.util.*;
public class Main{
    public static int lengthOfLast(String str) {
        String[] s =str.split(" ");
        return s[s.length-1].length();
    }
 
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNext()){
            String str = scan.nextLine();
            System.out.println(lengthOfLast(str));
        }
    }
}