标签:
Write a function that takes a string as input and returns the string reversed.
Example:
Given s = "hello", return "olleh".
Subscribe to see which companies asked this question
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;
}
}
标签:
原文地址:http://www.cnblogs.com/neversayno/p/5434696.html