题解 | #反转字符串#

记录

import java.util.*;


public class Solution {
    /**
     * 反转字符串
     * @param str string字符串 
     * @return string字符串
     */
    public String solve (String str) {
        // write code here
        char[] chars = str.toCharArray();
        int len = str.length();
        for (int i = 0; i < len; i++){
            chars[i] = str.charAt(len - i -1);
        }
        return new String(chars);
    }
}