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leetcode-Reverse String

时间:2016-04-26 14:14:52      阅读:126      评论:0      收藏:0      [点我收藏+]

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Write a function that takes a string as input and returns the string reversed.

Example:
Given s = "hello", return "olleh".

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解析:这个题目是新题,不难。

public class Solution {
    public String reverseString(String s) {
        int len = s.length();
        char[] ch = s.toCharArray();
        char tmp;
        for(int i = 0, j = len-1; i<j ; i++,j--){
            tmp = ch[i];
            ch[i] = ch[j];
            ch[j] = tmp;
         }
         //array -> String 的另一种方式
         String str = new String(ch);
         return str;
    }
}

leetcode-Reverse String

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原文地址:http://www.cnblogs.com/neversayno/p/5434696.html

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