Java like OOP Programming in Rust

struct_lib.rs

use std::fmt::Display;
use std::io::{stdin, stdout, Write};

struct Library;
impl Library {
    pub fn main() {
        Self.greet(Self::input("Who are you?: "));
    }

    fn greet(&self, name: impl Display) {
        println!("Hello, {}!", name);
    }

    pub fn input(prompt: impl Display) -> Box<str> {
        let mut buffer = String::new();

        stdout().write(prompt.to_string().as_bytes()).unwrap();
        stdout().flush().unwrap();
        stdin().read_line(&mut buffer).unwrap();

        buffer.trim().into()
    }
}

fn main() {
    Library::main();
}