Basic Programming in C

In this basic programming section, we are going to read about the basic structure of a normal C Programming. The first and simple C Programming is to print the Hello World program. Also, read the basic commands of a program.

1. The Basics of C Programming to write a Program:

Basic commands	Description
#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 we have to add this library function at first to the C program.
int main()	This is the main function from which the execution begins.
{	This indicates the beginning of a function.
/*_multiline_comments_*/	This is the comment command for multiple lines. Whatever is given inside the command “/*   */” in any C program, won’t be considered for compilation and execution. This includes multiple lines.
//_sinlgle line_comments_	This is the comment command for a single line. Whatever is given inside the command “// ” in any C program, won’t be considered for compilation and execution. But this includes only a single line comment.
printf(“Hello_World! “);	The printf() function prints an output to console.
getch();	This function waits for a character from the keyboard.
return 0;	This command terminates C program and returns 0.
}	This indicates the end of the function.

2. A Simple Program to Print "Hello World":

The program written below is a very simple program which would print "Hello World" in the output window. All the syntaxes of C Programming are case sensitive and each line ended with a semicolon (;). The semicolon is used as a terminator line.

Source Code:

#include <stdio.h> int main() { /* Our first simple C basic program */ <g class="gr_ gr_4131 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling" id="4131" data-gr-id="4131">printf</g>("Hello World! "); <g class="gr_ gr_4132 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling" id="4132" data-gr-id="4132">getch</g>(); return 0; }

Output:

Hello World

3. Steps to Write a C Program and Get the Output:

These are the folloing steps to get the output of a C Programming.

1. Create.
2. Compile.
3. Execute or Run.
4. Get the Output.