要求:将给定字符串内容倒置。
例:输入"Hello" 输出"olleH"
1 public class Solution { 2 public String reverseString(String s) { 3 int len = s.length(); 4 char []s1 = new char[len]; 5 for(int i = 0;i < len;i++){ 6 s1[i] = s.charAt(len-1-i); 7 } 8 String result = new String(s1); 9 return result; 10 } 11 }