摘要: Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. 阅读全文
posted @ 2016-08-24 20:03 MazeHong 阅读(151) 评论(0) 推荐(0) 编辑
摘要: 1、public char charAt(int index) 2、public int codePointAt(int index) 阅读全文
posted @ 2016-08-24 16:24 MazeHong 阅读(213) 评论(0) 推荐(0) 编辑