Input/Output

printf function

In C, printf is an format function that prints the output on the screen (standard output). According to different data types in C, the parameters in printf are different, see the examples below.

The the header file #include<stdio.h> needs to be included before use printf.

Table 1: printf for basic data types.

data type	format	example
int	%d	int i = 10; printf("%d", i);
char	%c	char c = "A"; printf("%c", c);
char[]	%s	char str[] = "Informatics-II" printf("%s", str)

Table 2: The cursor control sequences for the printf command.

data type	format
\n	carriage return and newline
\t	tab