If i try to display a word in c without including any header file. what will be the result.please explain?

Nothing, you will get absolutly nothing, but the debbuger will ask you to add a header file before you could even run the application.


This is not much of a big deal, why don't you try it and i can assure you nothing harmfull will happen. Don't ask this kind of questions just try and if you have problems ask.

If i try to display a word in c without including any header file. what will be the result.please explain?
What do you mean "display a word"? Do you mean printing to stdout? You cannot even compile without including the file stdio.h.