Primitive Data Types

Rust is a statically-typed language, which means that every variable must have a specific type. Rust's type system is designed to be safe and to prevent many common errors that occur in other languages. In this challenge, you will learn about some of the basic primitive data types in Rust, such as integers, floating-point numbers, booleans, and characters.

Understanding how to declare and use these basic data types is fundamental to writing effective Rust code. This challenge will guide you through defining variables with specific types and initializing them.

Your task

Define variable x with type u8
Define variable y with type f64
Define variable z with type bool
Define variable a with type char

Each of these variables should be annotated with their respective types and initialized with specific values of your choice.

Requirements

Every variable must be annotated with its type.
Initialize each variable with any value of your choice of the correct type.

Explanation of Data Types

Integer (u8): Represents an 8-bit unsigned integer.
Floating-point number (f64): Represents a 64-bit floating-point number.
Boolean (bool): Represents a boolean value, which can be either true or false.
Character (char): Represents a single Unicode scalar value.

Hints

Use the let keyword to define a variable.
Annotate the variable's type by specifying let variable_name: type = .

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Solutions

leenalmajz

2 hours ago

4.11ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Alex Nazarov

aleshkanet

4 hours ago

5.41ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 5;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 5.5;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

dpey

4 hours ago

4.51ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.1;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

garanast

4 hours ago

5.59ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
    let x: u8 = 1;
    let y: f64 = 0.1;
    let z: bool = true;
    let a: char = 'a';
}

Venkata Naga Aditya Datta Chivukula

cvnad1

a day ago

3.94ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 2.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

devarajang

a day ago

4.76ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
    let x:u8;
    let y:f64;
    let z:bool;
    let a:char;
}

Amilcar Rey

amilcarrey

a day ago

5.40ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y:f64;
    // 3. Define variable `z` of type `bool`
    let z:bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

Elizabeth Doughty

Thymelizabeth

a day ago

4.26ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x : u8 = 0u8;
    // 2. Define variable `y` of type `f64`
    let y : f64= 3.;
    // 3. Define variable `z` of type `bool`
    let z : bool= true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Sean Benson

SCBenson

a day ago

5.15ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8;
    // 2. Define variable `y` of type `f64`
    let y:f64;
    // 3. Define variable `z` of type `bool`
    let z:bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

Jan

jeypiti

a day ago

4.07ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 0;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 3.14;
    // 3. Define variable `z` of type `bool`
    let z: bool = false;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

plasitol

Plasitol

a day ago

5.37ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8;
    // 2. Define variable `y` of type `f64`
    let y:f64;
    // 3. Define variable `z` of type `bool`
    let z:bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

plasitol

Plasitol

a day ago

4.89ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8;
    // 2. Define variable `y` of type `f64`
    let y:f64;
    // 3. Define variable `z` of type `bool`
    let z:bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

Tony

YoNoSoyTony

2 days ago

4.00ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x : u8;
    // 2. Define variable `y` of type `f64`
    let y : f64;
    // 3. Define variable `z` of type `bool`
    let z : bool;
    // 4. Define variable `a` of type `char`
    let a : char;
}

s.konishi

konishu

2 days ago

5.51ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 10;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 5.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = false;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

nichideropa

2 days ago

4.00ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

aleksey-vareto

2 days ago

5.28ms

87.32kb

pub fn data_types() {
    let x: u8;
    let y: f64;
    let z: bool;
    let a: char;
    // 1. Define variable `x` of type `u8`
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
}

akshayabhattarai

2 days ago

4.39ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
    let x: u8;
    let y: f64;
    let z: bool;
    let a: char;
}

hatchepsut

2 days ago

4.36ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

oDqnger

2 days ago

4.07ms

88.19kb

pub fn data_types() {
    let x: u8 = 2;
    let y: f64 = 2.3;
    let z: bool = true;
    let a: char = '2';
}

M4dPac

2 days ago

4.22ms

88.19kb

pub fn data_types() {
    let x: u8 = 0;
    let y: f64 = 0.0;
    let z: bool = true;
    let a: char = 'a';
}

Derteq

3 days ago

5.46ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let  x : u8 = 12;
    // 2. Define variable `y` of type `f64`
    let  y : f64 = 0.0;
    // 3. Define variable `z` of type `bool`
    let  z : bool = true;
    // 4. Define variable `a` of type `char`
    let a : char = 'd';
}

martin-unit

3 days ago

4.31ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8;
    // 2. Define variable `y` of type `f64`
    let y:f64;
    // 3. Define variable `z` of type `bool`
    let z:bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

Dhananjay Pandit

djpandit007

3 days ago

3.82ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

KuTaKe

kuttakke

3 days ago

5.10ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x : u8;
    // 2. Define variable `y` of type `f64`
    let y : f64;
    // 3. Define variable `z` of type `bool`
    let z : bool;
    // 4. Define variable `a` of type `char`
    let a : char;
}

Takuro Niitsuma

otakumesi

3 days ago

6.45ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 0.666;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

matsumura-y1

3 days ago

4.68ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8 = 8;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 123.123;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a:char = 'a';
}

kada-s

sy34

3 days ago

4.40ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.1;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

matsuyama-k1

3 days ago

8.32ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8 = 2;
    // 2. Define variable `y` of type `f64`
    let y:f64 = 2.5;
    // 3. Define variable `z` of type `bool`
    let z:bool = true;
    // 4. Define variable `a` of type `char`
    let a:char = 't';
}

Kohei Matsubara

matsuby

3 days ago

5.47ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 255;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 3.14;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Ankeet Parikh

ankeetparikh

3 days ago

5.55ms

88.20kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 8;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 123.1234;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Ankeet Parikh

ankeetparikh

3 days ago

6.06ms

88.20kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 8;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 123.1234;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

aidan1magee

3 days ago

4.31ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 5.4;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'g';
}

maxvi

3 days ago

5.66ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Aidar Shagiyev

Aidar-Shagiyev

3 days ago

4.61ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

Johan Alexis Duque Cadena

johandroid

3 days ago

4.22ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a:char;
}

Rayen Benbetaieb

P0TER19

4 days ago

5.63ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8 = 7;
    // 2. Define variable `y` of type `f64`
    let y:f64 = 7.2;
    // 3. Define variable `z` of type `bool`
    let z:bool = false;
    // 4. Define variable `a` of type `char`
    let a:char = 'a';
}

Benjamin HB

whatyoubendoing

4 days ago

4.27ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    let y: f64;
    let z: bool;
    let a: char;
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
}

0xsmarter

4 days ago

3.90ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
    let x : u8 = 25;
    let y : f64 = 2.5;
    let z : bool = false;
    let a : char = '*';
}

Walquer Xavier Valles Ruiz

WalquerX

4 days ago

4.42ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 5;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 0.1;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = '�';
}

Rafael Lucas

rafaellucasprogm

4 days ago

4.52ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

koslowskio

4 days ago

10.05ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x :u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

Rocky.C

cloki0610

4 days ago

4.27ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 10;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 12.18;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a:char = 'x';
}

Denis SOURON

Brack0

4 days ago

4.04ms

88.19kb

pub fn data_types() {
    let x: u8 = 2;
    let y: f64 = 4.20;
    let z: bool = false;
    let a: char = 'a';
}

Denis SOURON

Brack0

4 days ago

4.48ms

88.19kb

pub fn data_types() {
    let x: u8 = 2;
    let y: f64 = 4.20;
    let z: bool = false;
    let a: char = 'a';
}

Hudson

dalprahcd

4 days ago

4.69ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x:u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y:f64 = 1.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a:char = '1';
}

tsuchiya-d

tsucchinoko

4 days ago

4.21ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 10;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 2.4;
    // 3. Define variable `z` of type `bool`
    let z:bool = false;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

Samori Gorse

shinuza

5 days ago

3.80ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    let y: f64;
    let z: bool;
    let a: char;
    // 2. Define variable `y` of type `f64`
    // 3. Define variable `z` of type `bool`
    // 4. Define variable `a` of type `char`
}

Prajval Malhotra

prajval-malhotra

5 days ago

4.76ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}

Sabin Howard

whitwulf

5 days ago

4.06ms

88.19kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8 = 1;
    // 2. Define variable `y` of type `f64`
    let y: f64 = 1.0;
    // 3. Define variable `z` of type `bool`
    let z: bool = true;
    // 4. Define variable `a` of type `char`
    let a: char = 'a';
}

risemacro

5 days ago

4.12ms

87.32kb

pub fn data_types() {
    // 1. Define variable `x` of type `u8`
    let x: u8;
    // 2. Define variable `y` of type `f64`
    let y: f64;
    // 3. Define variable `z` of type `bool`
    let z: bool;
    // 4. Define variable `a` of type `char`
    let a: char;
}