Structure of Simple C Program


A simple C Program:

Below C program is a very simple and basic program in C programming language. This C program displays “Hello World!” in the output window. And, all syntax and commands in C programming are case sensitive. Also, each statement should be ended with semicolon (;) which is a statement terminator.


Output:
Hello World!


C Basic commandsExplanation
#include <stdio.h>This is a preprocessor command that includes standard input output header file(stdio.h) from the C library before compiling a C program
int main()This is the main function from where execution of any C program begins.
{This indicates the beginning of the main function.
/*_some_comments_*/whatever is given inside the command “/*   */” in any C program, won’t be considered for compilation and execution.
printf(“Hello_World! “);printf command prints the output onto the screen.
getch();This command waits for any character input from keyboard.
return 0;
This command terminates C program (main function) and returns 0.
}
This indicates the end of the main function.

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