Length of Last Word

Length of Last Word

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.

Java代码；

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