I need more help on this as it is very tough

1) In a single statement, declare and initialize a reference variable called mySeats for an ArrayList of Seat objects. Incorrect ArrayList mySeats = new ArrayList 0 2) Add a new element of type Seat to an ArrayList called trainSeats. Incorrect trainSeats.add( ); 3) Use method chaining to get the element at index 0 in ArrayList trainSeats and make a reservation for John Smith, who paid \$44. Incorrect trainSeats.get(0).reserve(