LeetCode 58. Length of Last Word Java

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.

public class Solution {
public int lengthOfLastWord(String s) {
String[] strArr = s.split(" ");
if (strArr == null || strArr.length == 0) {
return 0;
}
return strArr[strArr.length - 1].length();
}
}

注意[“        ”]的测试用例