One to generate a "ChangeLightBulb" event to the socket.
pi
Three. One to do it, one to complain that it has already been done before, and one to repost this joke.
None. cmon , they'd much rather be kept in the dark.
None. It's already lit fam.
Java the Hutt
Java and JavaScript are similar in the same way car and carpet are.
By holding the bulb up to the socket and waiting for the world to revolve around them.
If you know the number, you don't know where the socket is.
A fission-chips shop.
Because they don't C#.