public static boolean hasValidLengthAndSeparator (String s) [Question 9] Partially validates a string that is supposed to represent a time on a 24-hour clock. Returns true if: the string has length equal to 5, AND the third character is a colon : and false otherwise. Parameters: s - a string to validate Returns: true if the string length is 5 and the third character is a colon, and false otherwise public static void sort2(List t) [Question 10a] Sorts a list of two integers so that the elements are in ascending order. The size of the list remains unchanged. Parameters: t - a list Throws: IllegalArgumentException - if the size of list is not equal to 2 public static void toRadians (List t) [Question 10b] Replaces the elements of a list of angles in degrees with the equivalent angles in radians. The size of the list remains unchanged. Parameters: t - a list of angles in degrees