Interfaces Are Code Smell

Obviously no shade on any

How not to write you

In this video I walk through Java Consumer to see if they are a

Don't fall for the

... the true significance of

C# : Are empty

A lot of developers assume testable

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Code smells

If a method is obsessed with another class's data, it's a Feature Envy

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How to follow the principle of Couple To Abstractions, Not Concretions, and how to avoid tempting others to break the rule.

You've probably seen it: IOrderService, IEmailService, IPaymentService… and every class has exactly one implementation.

java #javatutorial #javacourse public class Main { public static void main(String[] args) { //

Downcasting is a fundamentally bad idea. In this video I talk about why. First from a theoretical point of view (all cats are animals ...

Thinking in

Welcome to Simple Programming A

Java

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