Length of Last Word

Posted 2020-11-21 ncznx

描述
Given a string s consists of upper/lower-case alphabets and empty space characters ‘ ‘, return the
length of last word in the string.
If the last word does not exist, return 0.
Note: A word is defined as a character sequence consists of non-space characters only.
For example, Given s = "Hello World", return 5.
分析
细节实现题

 1 public class LengthOfLastWord {
 2 
 3     public static void main(String[] args) {
 4         // TODO Auto-generated method stub
 5 String s= "hello World";
 6 System.out.println(lengthOfLastWord(s));
 7     }
 8     public static int lengthOfLastWord(String s) {
 9         String[] strs =s.split(" ");
10         String res=strs[strs.length-1];
11         if(res.equals("")) {
12         return 0;
13         }
14         
15         return res.length();
16     }
17 }