How to print Hello World! in C language

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How to print Hello World!

As when learning any new language, the place to start is with the classic "Hello World!" program:

#include <stdio.h>
int main() {
    printf("Hello, World!\n");
    return 0;
}

Let's break down the code to understand each line:

#include <stdio.h>

The function used for generating output is defined in stdio.h.
In order to use the printf function, we need to first include the required file, also called a header file.

int main() The main() function is the entry point to a program. Curly brackets { } indicate the beginning and end of a function (also called a code block). The statements inside the brackets determine what the function does when executed.

The printf function is used to generate output:

printf();

Here, we pass the text "Hello World!" to it.
The \n escape sequence outputs a newline character. Escape sequences always begin with a backslash \.
The semicolon ; indicates the end of the statement. Each statement must end with a semicolon.

return 0;
This statement terminates the main() function and returns the value 0 to the calling process. The number 0 generally means that our program has successfully executed. Any other number indicates that the program has failed.

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