P10.12

Consider an interface public interface NumberFormatter { String format(int n); }

Provide four classes that implement this interface. A DefaultFormatter formats an integer in the usual way. A DecimalSeparatorFormatter formats an integer with decimal separators; for example, one million as 1,000,000. An AccountingFormatter formats negative numbers with parentheses; for example, 1 as (1). A BaseFormatter formats the number in base n, where n is any number between 2 and 36 that is provided in the constructor.

Write a method that takes an array of integers and a NumberFormatter object (from Exercise P10.12) and prints each number on a separate line, formatted with the given formatter. The numbers should be right aligned.

Provide comment blocks explaining each part of the code.