LeetCode_58. Length of Last Word

58. Length of Last Word

Easy

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.

Example:

Input: "Hello World"
Output: 5

package leetcode.easy;

public class LengthOfLastWord {
	@org.junit.Test
	public void test() {
		System.out.println(lengthOfLastWord("Hello World"));
	}

	public int lengthOfLastWord(String s) {
		String str = s.trim();
		String[] buff = str.split(" ");
		return buff[buff.length - 1].length();
	}
}