IT2EDU Empowering Education Through Technology
First C Program:
- First every c program must have one main() function.
- C program execution always start from main().
- Every statement ends with semicolon(;).
#include <stdio.h>
#include<conio.h>
void main()
{
printf(“Hello, world\n”);
getch();
}
#include <stdio.h> includes the standard input output library functions. The printf() function was defined in stdio.h file.
#include <conio.h> includes the console input output library functions. The getch() function is defined in conio.h file.
void main() The main() function is the entry point of every program in c language. The void keyword specifies that it returns no value.
printf() The printf() function is used to print data on the console.
getch() The getch() function asks for a single character. Until you press any key, it blocks the screen.
Compilation of C Program:
By pressing ctlr+f9, the c program will compile.
To see the output alt+f5. (if you don’t give getch() function in the program).
