leetcode/code/lc58.java at master · mJackie/leetcode · GitHub

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package code;

* 58. Length of Last Word

* 题意：最后一个单词的长度

* 难度：Easy

* 分类：String

* 注意：要考虑空字符，串首尾空格等情况

public class lc58 {

public static void main(String[] args) {

System.out.println(lengthOfLastWord("aaa"));

}

public static int lengthOfLastWord(String s) {

int pointer = s.length()-1;

while(pointer>=0 && s.charAt(pointer)==' ')

pointer--;

int end = pointer;

while( pointer>=0 && s.charAt(pointer)!=' ')

pointer--;

return end-pointer;

}

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