How to Reverse a String in Java using Recursion

In this program, we will reverse a string entered by a user.

We will create a function to reverse a string. Later we will call it recursively until all characters are reversed.

Write a Java Program to Reverse String

package com.guru99;
 
public class ReverseString {
 
 public static void main(String[] args) {
 
 
  String myStr = "Guru99";
 
 
  //create Method and pass and input parameter string 
  String reversed = reverseString(myStr);
  System.out.println("The reversed string is: " + reversed);
  
 }
 
 
 //Method take string parameter and check string is empty or not
 public static String reverseString(String myStr)
 {
  if (myStr.isEmpty()){
   System.out.println("String in now Empty"); 
   return myStr;
  }
  //Calling Function Recursively
  System.out.println("String to be passed in Recursive Function: "+myStr.substring(1));
  return reverseString(myStr.substring(1)) + myStr.charAt(0);
 }
 
}

Output:

String to be passed in Recursive Function: uru99
String to be passed in Recursive Function: ru99
String to be passed in Recursive Function: u99
String to be passed in Recursive Function: 99
String to be passed in Recursive Function: 9
String to be passed in Recursive Function: 
String in now Empty
The reversed string is: 99uruG