How to reverse a string in java

using StringBuilder

 public class Main {
     public static void main(String[] args) {
         String string = "shohan";
         StringBuilder sb = new StringBuilder(string);
         System.out.println(sb.reverse());
     }
 }

using loop

 public class Main {
     public static void main(String[] args) {
         String string = "shohan";
         String reverse = "";
         for (int i = string.length() - 1; i >= 0; i--) {
             reverse = reverse + string.charAt(i);
         }
         System.out.println(reverse);
     }
 }

using recursion

 public class Main {
     public static void main(String[] args) {
         Main main = new Main();
         String string = "shohan";
         String reverse = main.reverse(string);
         System.out.println(reverse);
     }

     public String reverse(String str) {
         // Base case: If string is empty or has a single character, return it as is
         if (str.isEmpty() || str.length() == 1) {
             return str;
         } else {
             /* Recursive case:
                1. Extract the first character and store it.
                2. Recursively reverse the remaining substring (excluding the first character).
                3. Append the first character to the reversed substring. */
             return reverse(str.substring(1)) + str.charAt(0);
         }
     }
 }