Bluetooth keyboard keys are swapped I have a Samsung tablet and bought a cover with a Bluetooth keyboard. The problem I have is that the @ key and the " key are swapped around.

How do I resolve this?
This can be due to a number of reasons:

1) You have a layout conflict between the OS and the Bluetooth keyboard, as pointed out by the previous answerer. Resolve this by going into the "Physical Keyboard Settings" option in the settings of whatever 3rd-party keyboard app you may have as default, or if you use the inbuilt soft keyboard, go into 
Settings->Language and Input->Keyboard app Settings button->Input Layouts.

2) Same as above, but in this case the problem is due to a region setting in your phone which conflicts with the layout of the keyboard. Fix this by checking if the region setting on your tablet is incorrect for the keyboard layout, and correct as necessary.