There's 2 genders in Swedish- ett (which is neuter) and en (which is for masculine AND feminine words). Like the way we say 'a' and 'an' in English, except there's no real rule to figure out which words use ett and which use en. You just have to kinda memorize which goes with the noun you're learning.
I guess that this sentence would sound something like "De-e-et eple" (perhaps with some Es exchanged for Äs depending on the dialect) if a Swede would say it in natural speed. We like to shorten words link them to each other.
Actually, it would sound rather unnatural to pronounce every single letter.