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

CB-42458

2 days ago

2.65ms

90.66kb

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

Ambrus-Dobai Márton

admarton

2 days ago

2.75ms

90.73kb

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

Adam Honoré

ahonore42

4 days ago

2.55ms

90.69kb

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

Adam Honoré

ahonore42

4 days ago

2.62ms

90.69kb

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

Photon

quantumxt

4 days ago

2.75ms

90.69kb

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

Mj

MajidrNEO1879

8 days ago

2.84ms

90.66kb

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

dcodes

9 days ago

2.81ms

90.61kb

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

Derek

D-Rekk

9 days ago

2.97ms

90.61kb

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

Himanshu Dhingra

himanshuwiz

14 days ago

3.20ms

90.65kb

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

Spivur

14 days ago

2.77ms

90.72kb

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

Juanjo Algaz

JuanjoA

14 days ago

2.92ms

90.73kb

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

dcodes

14 days ago

3.55ms

90.61kb

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

Vijay Kv

Vijaykv5

15 days ago

3.36ms

90.69kb

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

Argenestel

argenestel

17 days ago

2.78ms

90.73kb

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

Argenestel

argenestel

17 days ago

2.64ms

90.73kb

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

Marcin Jakuszko

marcinjakuszko

18 days ago

2.79ms

90.73kb

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

bartoandras

21 days ago

3.03ms

90.73kb

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

SomeRandomRedneck

22 days ago

2.78ms

90.62kb

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

Marek Markiewka

marekzan

22 days ago

2.87ms

90.65kb

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

Shadoukun

22 days ago

2.70ms

90.62kb

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

cdcb52

22 days ago

2.76ms

93.08kb

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

Umair Ziyan

umairziyan

23 days ago

3.62ms

90.62kb

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

Robert

relia1

23 days ago

3.15ms

90.73kb

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

Carlos Alberto Lopez Gonzalez

carlosalg

23 days ago

2.74ms

90.73kb

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

hooneun

24 days ago

3.36ms

90.69kb

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

herlock77

24 days ago

2.88ms

90.73kb

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

Paul Pajo

pageman

25 days ago

2.71ms

90.69kb

pub fn hello_world() {
    // Use the println! macro to print "Hello, world!" to the console
    println!("Hello, World1")
}

Alienora

a month ago

2.63ms

90.69kb

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

Robsen Gelalcha

RobsenGelalcha

a month ago

2.63ms

90.73kb

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

Andrey Doroschenko

dorosch

a month ago

2.73ms

90.73kb

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

Hong

tszhong0411

a month ago

4.11ms

90.66kb

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

Jeremy Minton

JJMinton

a month ago

3.01ms

90.73kb

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

Aditya Mandage

AdityaMandage

a month ago

3.69ms

90.73kb

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

unpeturbed

a month ago

2.71ms

90.73kb

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

Gideon Bature

GideonBature

a month ago

2.99ms

90.66kb

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

Isaac

eartharoid

a month ago

2.77ms

90.69kb

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

Jaisurya

JaiSuryaPrabu

2 months ago

2.75ms

90.73kb

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

AV

Adiiittt

2 months ago

2.96ms

90.62kb

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

Mrigesh patni

Mrigesh901

2 months ago

3.15ms

90.69kb

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

Hritul

Hritul2

2 months ago

2.90ms

90.69kb

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

dcodes

2 months ago

2.62ms

90.61kb

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

UDAY PRAPHULLA MALANGAVE

malangaveuday

2 months ago

3.39ms

90.73kb

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

Sai Gautham Kolluru

gauthamkolluru

3 months ago

2.68ms

90.73kb

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

dcodes

3 months ago

2.63ms

90.62kb

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

Rudolf Shenfeld

nerudxlf

3 months ago

3.23ms

90.69kb

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

Roman Istomin

istominrs

3 months ago

3.07ms

90.62kb

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

Irfan Ghat

lexara-prime-ai

3 months ago

2.83ms

90.66kb

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

Goodvise

GDVE

3 months ago

2.99ms

90.62kb

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

Johan Smal

Johan-smal

3 months ago

3.24ms

90.69kb

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

Charan[Mj0ln1r]

TheMj0ln1r

3 months ago

2.79ms

90.73kb

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