Writing your First C Program

There are some steps to write the First Program in C Language

1. Install a C Compiler

Before you start writing C programs, you need to install a C compiler. If you did not install then please check my last article for How to install C Compiler on your machine.

2. Create Your First Program

Once you have the compiler installed, you can create your first program. Let’s write a basic “Hello, removeload.com!” program.

Example:


#include <stdio.h>  // Preprocessor directive to include standard input/output header file

int main() {
    printf("Hello, removeload.com!");  // Prints "Hello, removeload.com!" to the console
    return 0;  // Exit the program successfully
}

Explanation of the Code:

#include<stdio.h>: This tells the compiler to include the standard input/output library that allows us to use functions like printf.

int main(): This is the entry point of every C program. The program starts executing here.

printf(“Hello, removeload.com!”);: This line prints the message Hello, removeload.com! to the screen.

return 0;: This indicates that the program has successfully completed and returns control to the operating system.

3. Save and Compile the Program

1. Save the program in a file with the .c extension, for example, hello.c.

2. Now, open a terminal/command prompt and navigate to the directory where your program is saved.

3. To compile the program, use the following command (assuming you’re using GCC).


gcc hello.c -o hello

This will create an executable file called hello (or hello.exe on Windows).

4. Run the Program

After compilation, you can run your program:

On Linux/macOS:


./hello

On Windows:


hello

Output:

Hello, removeload.com!