This c program first inputs an integer and then prints it. Input is done using scanf function and number is printed on screen using printf.
#include <stdio.h> int main() { int a; printf("Enter an integer\n"); scanf("%d", &a); printf("Integer that you have entered is %d\n", a); return 0; }
Download integer program.
Output of program:

In c language we have data type for different types of data, for integer data it is int, for character date char, for floating point data it's float and so on.