Commands are off by default in Java (Image via Mojang) Once you've reached Java's main menu, hit the "Singleplayer" button to open your list of worlds. You'll need to go to create a new world and ...

Go to the Cheats tab and toggle them On. Now, just like in Java, you can open the chat menu and input / to start entering commands. If you’re playing with a controller, you will need to hit ...