isaacssemugenyi

let mut input_file = File::open(file_path)?;
let mut contents = String::new();
input_file.read_to_string(&mut contents)?;

println!("{}", contents);

isaacssemugenyi

fn check_directory_exists(meter_number: &str) -> io::Result<()> {
    let exists_result = metadata(meter_number)?;

    match exists_result.is_dir() {
        true => println!("Meter number {} exists", meter_number),
        false => println!("Meter number {} is not registered.", meter_number),
    }
    Ok(())
}

isaacssemugenyi

fn create_user_meter_number(folder_name: &str) {
    match create_dir(folder_name) {
        Ok(_) => {
            println!("Account/ Meter number '{}' created successfully", folder_name);
            get_print_main_menu(folder_name);
        }
        Err(e) => {
            eprintln!("Error generating meter number {}", e);
        }
    }

isaacssemugenyi

fn generate_random_receipt_numbers() -> (String, u32) {
    let nanos = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .unwrap()
        .subsec_nanos();

    (nanos.to_string() + ".txt", nanos)
}

isaacssemugenyi

mod write_file;
mod terminal_print;
mod read_file;

use write_file::*;
use terminal_print::*;
use read_file::*;

isaacssemugenyi

public class ConsumeFacade {
    public static void main(String[] args){
        MyFacade facade1 = new MyFacade();

        facade1.atChargeUser();
        facade1.mmChargeUser();
        facade1.MmPayUser();
        facade1.atPayUser();
    }
}

isaacssemugenyi

public class MyFacade {
    private AtPay atPay;
    private MmPay mmPay;

    MyFacade(){
        atPay = new AtPay();
        mmPay = new MmPay();
    }

    public void MmPayUser(){

isaacssemugenyi

public class AtPay implements Payment {
    @Override
    public void debitUser() {
        System.out.println("Money deducted from user using AtPay");
    }

    @Override
    public void checkUserBalance() {
        System.out.println("User balance checked using AtPay");
    }

isaacssemugenyi

public class MmPay implements Payment {
    @Override
    public void debitUser() {
        System.out.println("Money deducted from user using MmPay");
    }

    @Override
    public void checkUserBalance() {
        System.out.println("User balance checked using MmPay");
    }

isaacssemugenyi

public interface Payment {
    void debitUser();
    void checkUserBalance();
    void creditUser();
}