Write a method stutter that doubles the size of a list by replacing every integer in the list with two of that integer. For example, suppose a variable list stores the following sequence of integers:
[1, 8, 19, 4, 17]
After a call of list.stutter(), it should store the following sequence of integers:
[1, 1, 8, 8, 19, 19, 4, 4, 17, 17]
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
...
}
