Consider the generic ArrayBag

(a) how to implement the method countOccurrences, add, remove?

(b) How to make the ArrayBag comparable?

(c) Integer i = new Integer(42);

Integer j = new Integer(43);

ArrayBag b = new ArrayBag ( );

// Add two i's and one j:

b.add(i);

b.add(i);

b.add(j);

Draw a diagram showing the reference variables i and j with their pointers to Integer objects, and also show b's data array with its pointers after these add statements.

What is the printout of the following statement?

System.out.println(b.countOccurences(i);