Clean Code with Java examples

This is a course about useful clean code principles.
My aim is to teach you concepts that you can use every time you write code.

The course has Java examples, and I sometimes mention things like Spring and Lombok.
The same clean code principles also apply to PHP, C#, and Python.

What can this course do for you? 

It can save your company and yourself a lot of development time and therefore a lot of money.
How?
Bad code practices can make development very slow on your medium and big projects.
This means a lot of money wasted on development time.
This type of project is also remarkably unpleasant to work on.
This course helps you avoid this by using clean code principles.

The course is structured in 4 parts:

1. Introduction - where we discuss what clean code is and why it's important

2. Small Functions - I gave small functions an entire section because I think it's one of the most important principles of clean code, together with small classes, the Single Responsibility Principle, and not crossing different levels of abstraction.

3. Clean code: Fundamental Principles - I discuss here fundamental things like method and variable names, parameters, comments, and exceptions.

4. Clean code: Advanced Principles - Here I talk about more abstract topics like the difference between an OOP object and a data structure object, composition over inheritance, symptoms of bad code, state, low coupling-high cohesion, command and query separation, tell-don't-ask, the law of Demeter, and more.

The course also contains some memes because you can't spell clean code without fun.

I tried to focus on things you can use every day when programming and stay away from barren theory.
There's no point in wasting our time with useless knowledge that would just seem like it's helping you as a programmer, but that you will forget in 2 weeks.
If that had been the point, this would be a 10-hour course about programming patterns.
But it isn't.
I tried to make the course full of useful information but not too long.
If you invest as little as two hours of your life in this course, about the time you would spend watching a movie, you will become a much better developer.