Printing Text with printf

The workhorse of C output is printf, which lives in the <stdio.h> header.

One line

c
#include <stdio.h>

int main() {
    printf("Hello World!");
    return 0;
}

• This prints: Hello World!

Two printf statements, same line

Both printf statements write with no break in between, so the console shows one line:

c
printf("Hello World!");
printf(" I am learning C");

Output:

### Hello World! I am learning C

Printing on multiple lines

Use the newline character `

` inside the string:

c
printf("Hello World!
");
printf("I am learning C.
");

Output:

Hello World!
I am learning C.

The golden rules

• Put text inside double quotes "...".
• End each statement with a semicolon.
• Without `

`, everything stays on the same line.

TL;DR

• printf("text") prints text.
• Two printf lines without `

` share one console line.

• `

` inside a string jumps to a new line.

• Keep all print calls in order; output appears top-to-bottom.