Write a method called doubleList that takes an ArrayList of

$*$ strings as a parameter and replaces every string with two of

$*$ that same string. For example, if the list stores the values

$*["$how$",$ "are", "you?"$]$ before the method is called, it should

$*$ store the values $["$how$",$ "how", "are", "are", "you?", "you?"$]$

$*$ after the method finishes executing.