Write a Java program to find unique characters in a String – Codebun

Write a recursive method that takes two strings str and forbidden and removes all characters from the forbidden string from str.CleanUp.java1/**2* A recursive method that removes forbidden characters from a string.3 */4 public class CleanUp5 6public static String clean (String str, String forbidden)789if (forbidden.contains (first))1011return1213else1415return161718