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));
}
}