Start your programming journey with one of the most powerful and foundational languages — C. This comprehensive course is designed for absolute beginners as well as intermediate learners who want to build a solid understanding of programming using the C language. Whether you're preparing for college-level programming, cracking technical interviews, or planning to explore systems or embedded development, this course covers everything step-by-step. Through hands-on examples, real-world practice problems, and structured explanations, you’ll learn how to write clean and efficient C code — from your first printf() to advanced data structures and memory management.
It's time to write your very first C program — the traditional Hello, World! example. This simple program will help you understand the structure and flow of a basic C program.
Print the text Hello, World! to the screen.
#include <stdio.h>
int main() {
printf("Hello, World!\n");
return 0;
}#include <stdio.h>: This line tells the compiler to include the Standard Input Output header file which contains the printf function.int main(): The starting point of every C program. The program execution starts from here.printf("Hello, World!\n");: This prints text to the screen. \n adds a newline.return 0;: Indicates that the program ended successfully.Using GCC (on terminal):
gcc hello.c -o hello ./hello
;main is not the same as Main.{ } define blocks of code.You’ll soon be able to write and test this directly on our platform — UdaanPath.com. Stay tuned!
In the next chapter, we’ll dive deeper into the structure of a C program and understand what happens behind the scenes.