3. If n is a positive integer in Java, n % 10 is its rightmost digit and n/10 is the integer obtained by dropping the rightmost digit from n. Using these facts, write a recursive method that displays an integer n in decimal. Now observe that you can display n in any base between 2 and 9 by replacing 10 with the new base. Revise your method to accommodate a given base. Write a program to demonstrate the methods.