Printing Hello World

It's a convention to start learning a new programming language by writing a program that prints "Hello, World!" to the console.

In Rust, we can do this using the println! macro. The ! indicates that this is a macro rather than a function.

What is a macro?

A macro is a way to write code that writes other code. Macros are a powerful feature of Rust that allow you to write code that writes code. This is useful for metaprogramming, which is the process of writing code that writes code.

println!

The println! macro is used to print text to the console. It is similar to the println function in other programming languages, but it is a macro in Rust.

Here's how to print Hello to the console using the println! macro:

fn main() {
    println!("Hello");
}

Your task

Write a program that prints "Hello, World!" to the console using the println! macro.

Expected Output

Hello, World!

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Solutions

Kirill Yakimenkov

TiGrib

2 minutes ago

2.49ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Hannes Küttner

hanneskuettner

4 minutes ago

2.40ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!")
}

0xA0

0xA00

4 minutes ago

2.48ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello,world!");
}

Josh Wu

monzawu

14 minutes ago

2.54ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!");
}

CountJung

33 minutes ago

2.56ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Ryumin

RiskyRomero

38 minutes ago

2.55ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Adi

adityaarakeri

an hour ago

2.61ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Sebastian Heinz

IamSebastianDev

an hour ago

2.67ms

90.67kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello World")
}

Gigih Aji Ibrahim

bungcip

2 hours ago

2.51ms

90.67kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world")
}

Zhai Can

bczhc

2 hours ago

2.64ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("hello, world");
}

至尊宝

shankun

2 hours ago

2.62ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Dylan Park

dylan-park

2 hours ago

2.48ms

90.64kb

pub fn hello_world() {
    println!("Hello, World!");
}

oTTeuM

oTTeuMsTudio

2 hours ago

2.47ms

90.68kb

pub fn hello_world() {
    println!("Hello, World!")
    // Use the println! macro to print "Hello, world!" to the console
}

pagyeman

2 hours ago

2.60ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Huida

3 hours ago

2.44ms

90.64kb

pub fn hello_world() {
    println!("Hello, world!");
}

lishigushi

3 hours ago

2.50ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!")
}

Usserbayev Aset

UserbaevAset

3 hours ago

2.42ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Myles Pritchett

MylesJPritchett

3 hours ago

2.55ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!");
}

Wisarut Boonnumma

yeast72

4 hours ago

2.65ms

90.60kb

pub fn hello_world() {
    println!("Hello world")
}

Paul Apicerno

papicerno

5 hours ago

2.60ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

LordChildConsumer

5 hours ago

2.64ms

90.64kb

pub fn hello_world() {
    println!("Hello, world!");
}

Ryan A

ryanas97

5 hours ago

2.51ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!")
}

Park Seung-Keun

dadak797

5 hours ago

2.96ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Vinny Keeler

ShieldedAsh

5 hours ago

2.66ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!")
}

Joel Vicente Filho

kyhou

6 hours ago

2.54ms

90.64kb

pub fn hello_world() {
    println!("Hello, world!");
}

Carlos Arias

carlos-quantexai

6 hours ago

2.93ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Tukan van der Borgh

tukantje

6 hours ago

2.57ms

90.64kb

pub fn hello_world() {
    println!("Hello, World!");
}

Jake Hernandez

jakehz

7 hours ago

2.45ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Kevin Corcoran

kevin-corcoran

7 hours ago

2.57ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

HECKYEAHH

7 hours ago

2.52ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!");
}

Xanthonus

9 hours ago

2.53ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World");
}

Tiago Silva

tiagombsilva

9 hours ago

2.51ms

90.60kb

pub fn hello_world() {
   println!("hello world")
}

Conrad Mo

conrad-mo

9 hours ago

2.49ms

90.67kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello world")
}

Nicolás Caracci

hilias

10 hours ago

2.40ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Tim Sekiguchi

tsekiguchi

10 hours ago

2.49ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Kyle Geppert

krgeppert

10 hours ago

2.53ms

90.64kb

pub fn hello_world() {
println!("Hello, World!");
}

Jason Green

jaswgreen

11 hours ago

2.54ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}

Nika Shamiladze

asyncfinkd

11 hours ago

2.63ms

90.63kb

pub fn hello_world() {
    println!("Hello World");
}

Alex Kelleher

haak

11 hours ago

2.75ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Trym Skaar

trym

11 hours ago

2.52ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Gareth Andrew Lloyd

Ignition

11 hours ago

2.52ms

90.64kb

pub fn hello_world() {
    println!("Hello, world!");
}

JD

arukanoido

11 hours ago

2.46ms

90.61kb

pub fn hello_world() {
    println!("Hello, world!")
}

Pascal Dietrich

Cameo007

11 hours ago

2.67ms

90.64kb

pub fn hello_world() {
    println!("Hello, World!");
}

Quentin Cabanes

qcabanes-hobby

12 hours ago

2.42ms

90.64kb

pub fn hello_world() {
    println!("Hello, world!");
}

Danny Yoo

dyoo

12 hours ago

2.55ms

90.64kb

pub fn hello_world() {
    println!("Hello world!");
}

Jay Knight

jay-knight

12 hours ago

2.56ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World!");
}

st01011

12 hours ago

2.62ms

90.64kb

pub fn hello_world() {
    println!("Hello, World!");
}

Mateo Cabanal

mateocabanal

12 hours ago

2.51ms

90.71kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!");
}

Laurențiu STOLERIU

LaurentiuStoleriu

12 hours ago

2.67ms

93.06kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}
fn main() {
    hello_world()
}

bmelancon

13 hours ago

2.54ms

90.68kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, world!")
}