MCBlockEvent
The event is not cancelable.
The event does not have a result.
Importing the class
It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import at the very top of the file.
Extending MCEvent
MCBlockEvent extends MCEvent. That means all methods available in MCEvent are also available in MCBlockEvent
Methods
getBlockState
Return Type: MCBlockState
getPos
Return Type: BlockPos
getWorld
Return Type: MCWorld