C Introduction
C is a powerful general-purpose programming language. It can be used to develop software like operating systems, databases, compilers, and so on. C...
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Introduction
C is a powerful general-purpose programming language. It can be used to develop software like operating systems, databases, compilers, and so on. C programming is an excellent language to learn to program for beginners.
Our C tutorials will guide you to learn C programming one step at a time.
The best way to learn C programming is by practicing examples. The page contains examples on basic concepts of C programming. You are advised to take the references from these examples and try them on your own.
All the programs on this page are tested and should work on all platforms.
Program to Display "Hello, World!"
#include
int main() {
// printf() displays the string
printf("Hello, World!");
return 0;
}
This will produce the result bellow
Hello, World!
How "Hello, World!" program works?
- The #include is a preprocessor command that tells the compiler to include the contents of stdio.h (standard input and output) file in the program.
- The stdio.h file contains functions such as scanf() and printf() to take input and display output respectively.
- If you use the printf() function without writing #include <stdio.h>, the program will not compile.
- The execution of a C program starts from the main() function.
- printf() is a library function to send formatted output to the screen. In this program, printf() displays Hello, World! text on the screen.
- The return 0; statement is the "Exit status" of the program. In simple terms, the program ends with this statement.
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