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
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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
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