EbbeVang

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

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General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

EbbeVang

import graph.Graph;


public class TestGraph {
	
	public static void main(String[] args) {
		
		// create graph
		Graph<String> graph = new Graph<String>();
		

EbbeVang

import javafx.scene.shape.Circle;

public class Citizen implements Comparable<Citizen> {

    private String firstName;
    private String lastName;
    private long socialSecurityNumber;

    public Citizen (String firstName, String lastName, long socialSecurityNumber)
    {

EbbeVang

//the main method
ArrayList<Citizen> citizens = new ArrayList<>();
citizens.add(new Citizen("Liv", "Vang", 2911071234L));
citizens.add(new Citizen("Liv", "Andersen", 1505011234L));

citizens.add(new Citizen("Ebbe", "Vang", 2312721234L));
citizens.add(new Citizen("Ebbe", "Vang", 2412721234L));

Collections.sort(citizens);
System.out.println(citizens);

EbbeVang

BROADCAST_TO_PORT = 7000
import time
from socket import *
from datetime import datetime

s = socket(AF_INET, SOCK_DGRAM)
#s.bind(('', 14593))     # (ip, port)
# no explicit bind: will bind to default IP + random port
s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
while True:

EbbeVang

var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
ctx.fillStyle = "#FF0000";
ctx.fillRect(0,0,150,75);

EbbeVang

import axios, { AxiosRequestConfig, AxiosPromise } from 'axios';

axios.get("http://api.evang.dk/randomwords/", {
    'headers': 
    {
        'numberOfWords': 5,
        'maxWordLength': 10,
        'minWordLength': 8,
    }
})

EbbeVang

public interface Engine {

    /**
     * starts the engine
     * @return true if it wasn't already started
     */
    boolean start();

    /**
     * stops the engine

EbbeVang

import javafx.scene.paint.Color;

public interface Car {
    
    boolean isStarted();
    /**
     * This method tells you whether the car is started or not
      * @return true if the car i sstarted
     */
    boolean start();

EbbeVang

import java.util.logging.Level;
import java.util.logging.Logger;

import org.newdawn.slick.*;

public class SimpleSlickGame extends BasicGame
    {
        Image img;
        int x=100;
        int y=100;