First Program in C Programming
Basic Program:- Our first C Program
We are going to learn a simple “hello world” C program in this section. And some basics of a C program.
1) C basic program with output and explanation
2) Steps to write C programs and get the output
3) Creation, Compilation, and Execution of a C program
4) The basic structure of a C program
PROGRAM
#include<stdio.h>
int main()
{
/* our first simple c basic program */
printf(“hello world”);
getch();
return0;
}output:-
hello world
|
Command |
Explanation |
|
1) #include |
This is the Processor command that includes standard input output header file (stdio.h) from the C library before compiling a C program. |
|
2) int main() |
This is the main function from where the execution of any C program begins. |
|
3) { |
This indicates the beginning of the main function. |
|
4) /*some comments */ |
Whatever is given inside the command in any C program won't be considered for compilation and execution. |
|
5) printf("hello world") |
printf command prints the output onto the screen. |
|
6) getch(); |
This command is to wait for any character input from the keyboard. |
|
7) return0; |
This command terminates C program (main function) and returns 0; |
|
8) } |
This indicates the end of the main function. |
The explanation for the above C basis Program:
Let's see the section of the above simple C program line by line.
Steps to write C programs and get the output:
Below are the steps to be followed for any C program to create and get the output. This is common to all C program and there is no Exception whether its a very small C program or very large C program.
1) Create a program
2) Compile the program
3) Execute or Run the program
4) Get the output.
Creation, Compilation and execution of a C program:
Prerequisite:
-
If you want to create, compile and execute C programs on your own, you have to install a C compiler in your machine. Then, you can start to execute your own C programs in your machine.
-
You have to install a C compiler and compile and execute C programs in your machine.
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Once C compiler is installed in your machine, you can create, compile and execute C programs.
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