The client of a class should not have direct access to the data attributes of the class. True False QUESTION 14 Which two methods are the most likely to have more complex implementations? checking to see if empty and clearing entire collection of data find and replace add and remove finding out if a value is in the collection and finding out how many times a value is in the collection QUESTION 15 Which methods in the array-based implementation had a recursive version in Chapter 3 ? add remove getlndexOf add remove getindexOf getindexOf getFrequencyOf QUESTION 16 In the text book, which method in the ArrayBag class is private? getlndexOf getFrequencyOf contains getCurrentSize