Method create

Source Code/20-01.rs:21–27

(address: &str, port: u16)

    }
    impl CommunicationChannel {
        fn create(address: &str, port: u16) -> CommunicationChannel {
            println!("Opening port {}:{}", address, port);
            CommunicationChannel {
                address: address.to_string(),
                port: port,
            }
        }
        fn send(&self, msg: &str) {
            println!("Sent to {}:{} the message '{}'",
                self.address, self.port, msg);