Support you have an ArrayList containing random integers. These integers can be any number, and each integer can appear more than once. For example, [2, 19, 21, 19, 21, 1, 3, 3, 6, 21, .....]

Your job is to write a method called findEvenFrequentNumbers(ArrayList list) that returns an ArrayList which has all the numbers appears in even frequency and in increasing order.

e.g.

list = [2, 19, 21, 19, 21, 1, 3, 3, 6, 21], should return [3, 19]

list = [3, 3, 3, 1, 2, 2, 2, 2, 2], should return []

list = [1, 1, 1, 1, 1], should return [1]

Note that you need to provide a class with the main function and also the imports.