printf()

General-purpose format conversion function that will output the given arguments with a given format to stdout.

Example: printf("%d %4 haha", 7,2314); 7 2314 haha

% formats

symbol	meaning
%d	decimal integer
%f	float
%1-9	a character of length (1-9). example is printf(“%5f”, 23143);
$.1-9	requests (1-9) digits after the decimal place. example is printf(“%1.2f”,6.23);
%o	octal integer
%x	hex int
%c	character
%s	string
%%	just for % itself