题解 | #字符串最后一个单词的长度#

下标找到空字符就行，从末尾计算字符次数直到找到空字符停止计算

```import java.util.Scanner;


public class Main {
    public static int lenWord(String word){
          char[] s=word.toCharArray();
          int count=0;
          for(int i= s.length-1;i>=0;i--){
               if (s[i]==' '){
                    break;
               }
               count++;
          }

          return count;
     }
    public static void main(String[] args) {
        Scanner in =new Scanner(System.in);
          while (in.hasNext()){
               System.out.println(lenWord(in.nextLine()));
          }
    }
}