Use printf function to output message to console

C printf function has the following syntax.

int printf(const char *format, ...);

C printf function from header file stdio.h.

C printf function displays message by format.

The printf() Format Specifiers

Code	Format
%a	Hexadecimal output in the form 0xh.hhhhp+d (C99 only).
%A	Hexadecimal output in the form 0Xh.hhhhP+d (C99 only).
%c	Character.
%d	Signed decimal integers.
%i	Signed decimal integers.
%e	Scientific notation (lowercase e).
%E	Scientific notation (uppercase E).
%f	Decimal floating point.
%F	Decimal floating point (C99 only; produces uppercase INF, INFINITY, or NAN when applied to infinity or a value that is not a number. The %f specifier produces lowercase equivalents.)
%g	Uses %e or %f, whichever is shorter.
%G	Uses %E or %F, whichever is shorter.
%o	Unsigned octal.
%s	String of characters.
%u	Unsigned decimal integers.
%x	Unsigned hexadecimal (lowercase letters).
%X	Unsigned hexadecimal (uppercase letters).
%p	Displays a pointer.
%n	The associated argument must be a pointer to an integer. This specifier causes the number of characters written (up to the point at which the %n is encountered) to be stored in that integer.
%%	Prints a percent sign.

C printf function returns the number of characters actually printed. A negative value indicates failure.

Output message to console with format by using C printf function.


#include <stdio.h>
//ww  w  . j  a va2 s .  c  om
int main(void){
 printf("Hi %c %d %s", 'c', 10, "there!");
}

The code above generates the following result.