Rewrite Programming Exercise 18.9 using a helper method to pass the substring high index to the method. The helper method header is:
public static void reverseDisplay(String value, int high)

Write a recursive method that displays a string reversely on the console using the following header:
public static void reverseDisplay(String value)
For example, reverseDisplay("abcd") displays dcba. Write a test program that prompts the user to enter a string and displays its reversal.