Bagaimana untuk membalikkan aksara menggunakan rekursi dalam java

package net.javaguides.corejava.string; /** * * @author yisu * */ public class UsingRecursion { static int i = 0; // Recursive function to reverse a string in Java using static variable private static void reverse(char[] str, int k) { // if we have reached the end of the string if (k == str.length) return; // recurse for next character reverse(str, k + 1); if (i <= k) { char temp = str[k]; str[k] = str[i]; str[i++] = temp; } } public static String reverse(String str) { // base case: if string is null or empty if (str == null || str.equals("")) return str; // convert string into a character array char[] A = str.toCharArray(); // reverse character array reverse(A, 0); // convert character array into the string return String.copyValueOf(A); } public static void main(String[] args) { String str = "Java Guides"; // string is immutable str = reverse(str); System.out.println("Reverse of the given string is : " + str); } }

Reverse of the given string is : sediuG avaJ