p58

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LeetCode p58 Length of Last Word 题解

1.题目：

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.

题意：

输入一个字符串，输出最后一个词的长度，如果没有，输出0。

2.解题思路:

见代码

3.代码

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

4.一些总结：