Can you switch game modes from Creative to Survival if your world is flat?

Can you switch game modes from Creative to Survival if your world is flat? - 1

Added (1). In Minecraft, of course.

RUBINA 07.08.2015

Yes, you can change game mode in a flat world.
The command is /gamemode (creative/survival)
Although if you've disabled cheats while creating the world, I don't think you can change your game mode then…

Smarty pants 07.08.2015

/changemode 1, if you had codes enabled.

Radu 07.08.2015