java code help

ListExercises \# has 4 different methods for you to complete: - : This method takes a list and returns the total sum of the elements in that list. If the list is empty, it method should return 0. - : This method takes a list and returns a new list containing the even numbers of the given list. If there are no even elements, it should return an empty list. - : This method takes two lists , and returns a new list containing the common item of the two given lists. If there are no common items, it should return an empty list. - I : This method takes a list and a character , , and returns the number of occurrences of the given character in a list of strings. If the character does not occur in any of the words, it should return 0. For this part, you can import