The Swedish J is commonly pronounced like [j]. This means that it’s rather pronounced like a Y (e.g. yum) than an English J [ʤ] (dj) (e.g. jar).
hej
hello
jag
I
jakt
hunt
Also English loan words are pronounced the Swedish way. Jeans is rather pronounced like yeens. French loan words get a ske-sound [ɧ] instead.
English loans → [j]
jeans
jeans
jeep
jeep
jet
jet
joystick
joystick
French loans → [ɧ]
jargon
jargon
projekt
project