First C program

First C program

To write the first c program, open the c console and write the program

// My first C program #include <stdio.h>    
int main(){    
printf("Hello C Language");    
return 0;   
} 

Let us have a look at the elements of above program one by one:

               // My first C program

This is a comment. All lines beginning with // are comments. Compiler does not execute comments. Comments are included for short explanations or observations.

                #include <stdio.h> 

Statements that begin with # (hash) sign are directives for the preprocessor. That means, these statements are processed before compilation takes place. The #include<stdio.h> includes the standard input output library functions. The printf() function is defined in stdio.h.

                int main()

The main() function is the entry point of every program in c language. Every C program must have a function named main( ). Program execution begins at main( ) and continues by sequentially executing the statements within main( ). A program terminates normally following execution of the last statement of main( ). Every executable statement in C must be terminated by a semicolon ( ; ).

                printf()

The printf() function is used to print data on the console.

                return 0

The return 0 statement, returns execution status to the OS. The 0 value is used for successful execution and 1 for unsuccessful execution.

How to run and compile the program

There are 2 ways to compile and run the c program, by menu and by shortcut.

By menu

Now click on the compile menu then compile sub menu to compile the c program.

Then click on the run menu then run sub menu to run the c program.

By shortcut

Or, press ctrl+f9 keys compile and run the program directly.

Output

Hello C language