#[derive(Debug)]
struct User {
    username: String,
    email: String,
    sign_in_count: u64,
    active: bool,
}

impl User {
    fn new(username: String) -> User {
        User {
            username: username.clone(),
            email: format!("{}@user.com", username),
            sign_in_count: 1,
            active: true,
        }
    }
}

fn main() {
    let u1 = User::new("Chuck Norris".to_string());
    println!("Hello {:?}", u1)
}