This code alone prints the output:
for(CoffeeSize cs: CoffeeSize.values())
System.out.println(cs + " " + cs.getOunces()); }
BIG 8
HUGE 10
OVERWHELMING 16
values method returns arrays of all existing CoffeSize type enums i.e BIG ,HUGE and OVERWHELMING
then in the println you can use that to invoke method etc..
Actually i want you to get understood...