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Rust Programming Language

Solution Review: Defining Variables

Understand how to define variables in Rust, including mutable and immutable types, and how to assign and update their values. Explore basic variable usage to build a foundation for working with data types and advanced Rust concepts.

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Solution:

Rust 1.40.0
fn test() {
    // declare a mutable variable `x`
    let mut x = 1000;
    // declare a variable `y`
    let y="Programming";
    // print output of `x`
    println!("x:{}", x);
    // print output of `y`
    println!("y:{}", y);
    // update x
    x = 1100;
    // print output of `x`
    println!("x:{}", x);
    // print output of `y`
    println!("y:{}", y);
}

Explanation

  • On line 3, a mutable variable x is defined and assigned the
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