How do I use traits in Rust?

How do I use traits in Rust?

In Rust, traits are used to define shared behavior. You can think of them as interfaces in other languages. Would you like an example?

Yes, please provide an example of a trait.

Sure! Here's a simple trait definition:

trait Speak {
    fn speak(&self);
}

This trait defines a method speak. You can implement this trait for different types.

How do I implement this trait for a struct?

You can implement the trait for a struct like this:

struct Dog;

impl Speak for Dog {
    fn speak(&self) {
        println!("Woof!");
    }
}

Now, any instance of Dog can call the speak method!

Can traits have default method implementations?

Yes, traits can have default method implementations. You can provide a default in the trait definition, and types can override it if needed.