a. Declare an interface "Filter" that has a method accept()" which accepts as parameter an Object, and retur b. ns a Boolean. [3] c. Provide an abstract class ShortWordFilter that implements the interface Filter". [3] d. Extend two concrete classes Less ThanFive and LessThanTen from ShortWordFilter class, such that both have an ArrayList of type String to store the words. [3] e. Define a static method "collectAll" that accepts as parameters two arguments, an arraylist of type String and a reference of type Filter. The method returns an arraylist of type Filter containing two polymorphic references to objects of the sub dasses containing ArrayList filled with words that are accepted by the given filter. [7] f. Then write a testclass that reads all words from System in, puts them into an ArrayList