I have no idea how to implement this.

Implementing BookArrayBag Book - title : String - year : int BookArrayBag - data : Book[] - manyltems : int + BookBag 0 + BookBag ( capacity : int ) + add (b: Book ): void + remove (b: Book ): void + size (): int + grab (index : int): Book + find (b: Book ): Book + countOccurrences (b:Book) : int + toString (): String + max (): Book Book ( title : String, year : int) + getTitle(): String + getYear() : int + setTitle (title : String): void + setYear (year :int) : void + equals ( obj : Object): boolean + toString(): String . . : Two books are equal when they have the same title (case insensitive). ICS 240-50: Introduction to Data Structures - Spring 2022 6 Exercise 3: countInYear method in BookArrayBag Consider the BookArrayBag from slide #6 in the lecture-03-jan-28.pptx. Write an instance method belonging to BookArrayBag that takes one integer input, called year, and returns as output the number of books published in that year