program to reverse a string using recursive algorithm in Java

Write a program to reverse a string using recursive methods.
You should not use any string reverse methods to do this.

package com.tutorialsdesk.algo;   
public class StringRecursiveReversal {       
String reverse = "";           
public String reverseString(String str){                   
if(str.length() == 1){             
return str;         
} else {             
reverse += str.charAt(str.length()-1)+reverseString(str.substring(0,str.length()-1));             
return reverse;         
}     
}           
public static void main(String a[]){         
StringRecursiveReversal srr = new StringRecursiveReversal();         
System.out.println("Result: "+srr.reverseString("Java2novice"));     
} 
}

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Source:http://www.tutorialsdesk.com/2014/08/program-to-reverse-string-using.html