Write code to reverse String via its char array
//package com.book2s; public class Main { public static void main(String[] argv) { String s = "book2s.com"; System.out.println(reversString(s)); }/* w ww . j ava2s . c om*/ public static String reversString(String s) { char[] arr = s.toCharArray(); int end = s.length(); end = end - 1; int start = 0; while (start < end) { char temp = arr[start]; arr[start] = arr[end]; arr[end] = temp; start++; end--; } return String.copyValueOf(arr); } }