Java String Reverse Program using Recursion

Write a Java string reverse program using recursion or recursive functions. In this Java example, the user defined method checks whether the string is empty, and if it’s true, it prints the exact same or empty space. Otherwise, it performs the string reverse recursively.

package RemainingSimplePrograms;

import java.util.Scanner;

public class StringReverseRecur1 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {

		sc= new Scanner(System.in);
		
		System.out.print("Please Enter String to Reverse =  ");
		String str = sc.nextLine();
		
		String revString = stringReverse(str);	
		System.out.println("The reversed String =  " + revString);
	}
	
	public static String stringReverse(String str)
	{
		if(str.isEmpty())
			return str;
		
		return stringReverse(str.substring(1)) + str.charAt(0);
	}
}
Java String Reverse Program using Recursion

It is another way of writing string reverse programs in Java using recursion.

package RemainingSimplePrograms;

import java.util.Scanner;

public class Example2 {
	
	private static Scanner sc;
	
	public static void main(String[] args) {

		sc= new Scanner(System.in);
		
		System.out.print("Please Enter =  ");
		String str = sc.nextLine();
		
		System.out.print("The Result =  " );
		strRev(str);	
	}
	
	public static void strRev(String str)
	{
		if(str.isEmpty()) {
			System.out.print(str);
		}
		else {
			System.out.print(str.charAt(str.length() - 1));
			strRev(str.substring(0, str.length() - 1));
		}	
	}
}
Please Enter =  Welcome to Java World!
The Result =  !dlroW avaJ ot emocleW