Upvote:1
You'll enter Schengen area only once - landing in Amsterdam. So single entry visa will be sufficient for your described itinerary.
Upvote:1
From Amsterdam to Paris, nobody should check your passport. Airlines could check it as identity check, but they will not check visa. The same, police could do some random controls, but that is just to check that you have a valid document and visa.
So, you enter in Schengen Area in Amsterdam, and you will exit it on Paris. On the other flights there is no immigration check.
Upvote:3
The "single entry" goes for the whole Schengen area, and as the Netherlands, Sweden and France are all members, your single entry will start when you land in Amsterdam and end when you take off from Paris.