shut down android device programmatically

Question

I am trying to switch off android device through my program. It actually gets switched off but it restarts itself. I want the phone not to restart again by itself. How can I

Answer 1

I suppose you have found the answer,but this might help other users.

It's not possible to turn off your device. Here is an easy way to lock it :

• Download an application that locks/turns off the screen
• Launch it from your application Launch an application from another application on Android

You won't need any permissions, because some are only granted for system apps(like DEVICE_POWER and REBOOT). You also won't need to root your device.