Implementing BookArrayBag Book -title: String - year : int + Book ( title : String, year: int) + getTitle(): String + getYear(): int + setTitle (title : String): void + setYear (year: int) : void + equals ( obj: Object): boolean + toString(): String BookArrayBag - data : Book[] manyltems : int + BookBag () + 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 *Two books are equal when they have the same title (case insensitive). ICS 240-50: Introduction to Data Structures - Spring 2022 Exercise 4: equalsTo method for IntArrayBag Implement any one of the following methods. That will be a good exercise for you if you choose to implement both but you will be graded for only one. Implement a instance method, called equalsTo, in the IntArrayBag's class that takes one input parameter and returns a boolean value. The input parameter is of type IntArrayBag. The method returns true if the input bag and the bag that activates the method have exactly the same elements. Otherwise the method return false. Note that the locations of the elements in the data arrays are not necessarily be the same, it is only the number of occurrences of each element that must be the same