Length of Last Word

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

public class LengthOfLastWord {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
String s= "hello World";
System.out.println(lengthOfLastWord(s));
    }
    public static int lengthOfLastWord(String s) {
        String[] strs =s.split(" ");
        String res=strs[strs.length-1];
        if(res.equals("")) {
        return 0;
        }
        
        return res.length();
    }
}