Data Types and Operators

Work with numbers, booleans, characters, strings, tuples, and arrays.

Learning objectives

• Identify common Rust scalar types
• Use arithmetic and comparison operators
• Store multiple values in tuples and arrays

Common Types

Rust supports integer types, floating-point types, booleans, characters, strings, tuples, and arrays. Rust often infers the type automatically, but type annotations can improve clarity.

Operators

Rust supports common arithmetic operators such as addition, subtraction, multiplication, division, and remainder. It also supports comparison operators that return true or false.

Tuples and Arrays

A tuple can hold values of different types. An array holds multiple values of the same type with a fixed length.

Example code

fn main() {
    let age: u32 = 30;
    let price: f64 = 19.99;
    let active: bool = true;
    let grade: char = 'A';

    let profile = ("Alice", age, active);
    let scores = [80, 85, 90];

    println!("Price: {}", price);
    println!("Grade: {}", grade);
    println!("Name: {}", profile.0);
    println!("First score: {}", scores[0]);
}