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

Venkata Naga Aditya Datta Chivukula

cvnad1

19 minutes ago

25.89ms

90.68kb

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

Jake Hernandez

jakehz

2 hours ago

3.28ms

90.71kb

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

Amilcar Rey

amilcarrey

4 hours ago

4.03ms

90.61kb

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

Elizabeth Doughty

Thymelizabeth

6 hours ago

4.70ms

90.71kb

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

qiyuan711

6 hours ago

3.39ms

90.68kb

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

Sean Benson

SCBenson

10 hours ago

3.33ms

90.71kb

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

Jan

jeypiti

10 hours ago

3.66ms

90.71kb

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

Baalateja Kataru

bkataru

14 hours ago

3.68ms

90.71kb

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

plasitol

Plasitol

15 hours ago

3.99ms

90.61kb

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

s.konishi

konishu

16 hours ago

4.99ms

90.68kb

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

Tony

YoNoSoyTony

a day ago

3.86ms

90.68kb

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

nichideropa

a day ago

3.34ms

90.71kb

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

aleksey-vareto

a day ago

3.95ms

90.68kb

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

aleksey-vareto

a day ago

3.36ms

90.68kb

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

akshayabhattarai

a day ago

3.41ms

90.67kb

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

Grant Williams

GreatGrant

a day ago

3.61ms

90.71kb

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

hatchepsut

a day ago

4.11ms

90.64kb

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

oDqnger

a day ago

3.41ms

90.64kb

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

Jadoski™

oelun-in

2 days ago

3.90ms

90.71kb

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

Mor8

2 days ago

3.19ms

90.71kb

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

M4dPac

2 days ago

3.38ms

90.68kb

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

Bin Zhang

Alicebond

2 days ago

3.63ms

90.68kb

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

martin-unit

2 days ago

3.34ms

90.68kb

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

Takuro Niitsuma

otakumesi

2 days ago

4.23ms

90.71kb

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

matsumura-y1

2 days ago

3.35ms

90.67kb

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

kada-s

sy34

2 days ago

3.39ms

90.71kb

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

Kohei Matsubara

matsuby

2 days ago

21.58ms

90.64kb

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

matsuyama-k1

2 days ago

3.75ms

90.68kb

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

watackeech

2 days ago

3.96ms

90.68kb

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

Ankeet Parikh

ankeetparikh

2 days ago

3.55ms

90.67kb

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

aidan1magee

2 days ago

3.49ms

90.68kb

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

maxvi

2 days ago

4.26ms

90.71kb

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

Aidar Shagiyev

Aidar-Shagiyev

2 days ago

3.18ms

90.71kb

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

Johan Alexis Duque Cadena

johandroid

2 days ago

3.39ms

90.68kb

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

T4D4

T4D4-IU

2 days ago

4.05ms

90.67kb

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

PickAUsername

Skul1CrowN

2 days ago

3.55ms

90.64kb

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

Yofifi

3 days ago

4.11ms

90.68kb

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

Bear

thebearpark

3 days ago

3.34ms

90.68kb

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

Derteq

3 days ago

5.38ms

90.64kb

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

rishad

rishad13

3 days ago

3.28ms

90.71kb

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

Rayen Benbetaieb

P0TER19

3 days ago

4.01ms

90.64kb

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

devarajang

3 days ago

3.96ms

90.71kb

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

0xsmarter

3 days ago

3.46ms

90.71kb

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

Walquer Xavier Valles Ruiz

WalquerX

3 days ago

4.49ms

90.68kb

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

KuTaKe

kuttakke

3 days ago

4.90ms

90.71kb

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

woke-developer

3 days ago

3.44ms

90.67kb

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

meowyaga

3 days ago

3.32ms

90.64kb

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

Rafael Lucas

rafaellucasprogm

3 days ago

4.09ms

90.71kb

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

koslowskio

3 days ago

4.23ms

90.68kb

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

Pranay raj

baindlapranayraj

3 days ago

3.61ms

90.67kb

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