In java:

Write a method removeDuplicates that removes all consecutive duplicates from an unsorted linked list. For example, if a variable list contains the following values:

[8, 8, 3, 7, 2, 2, 2, 4, -1, -1, 9, 9, 9, 9, 9] 

The call of list.removeDuplicates(); would modify the list to store the following values:

[8, 3, 7, 2, 4, -1, 9] 

You must preserve the original relative order of the elements of the list. Assume that you are adding this method to the LinkedIntList class as defined below:

public class LinkedIntList {

 private ListNode front; // null for an empty list

 ...

}