java两种方法将一个字符串逆序

public static void reverse1(String s){     char[] array=s.toCharArray();    String reserve="";    for (int i = array.length-1; i >=0; i--) {reserve+=array[i];}    System.out.print(""+reserve);} 

public static void reverse2(String s){  int length=s.length(); for (int i = length-1; i >=0 ; i--) { System.out.print(""+s.charAt(i)); }}