Kevin Kouomeu | Blog about Java and Javascript

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Hey friends,
I am Kevin. I'm a Software Engineer, Developer and Part-time blogger
On this site, I share with you principles, techniques and tools that will make it easier for you to learn professionals skills on Java and JavaScript technologies. With this in mind, I hope some of my articles here will resonate with you and you will enjoy reading my digital notes.

Join others friendly readers up there ⤴ and check my articles below ⤵ Join my newsletter here 👆🏽

👨🏽‍💻. tutorials

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28 Sep 2025

How to Delete All Content in a File Using Vim

In this post, I'll guide you through the steps to quickly remove all text within a file using Vim. Knowing how to delete all content in a file can be beneficial.

How to Generate a Git SSH Key on Your Mac and Add it to GitHub

Generate a Git SSH key on Mac in 3 minutes and connect to GitHub seamlessly. Never enter your password again with this complete step-by-step guide.

31 Aug 2025

Why Are My React Components Re-rendering Too Much?

Your React components re-rendering constantly? Discover the hidden performance killers causing unnecessary renders and destroying your app speed

26 Jul 2025

How to Use Custom Hooks in React

Ever feel like you're rewriting the same code to React over and over again? Learn how custom hooks can be your game-changer, saving you time and making your code cleaner.

01 Jun 2025

🏛. Software Architecture

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16 Jul 2022

Hexagonal Architecture - Implementing Port and Adapter with Java

In this post you will learn an introduction to port and adapters architecture with Java

🛠. Software Design

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Object Calisthenics the Practical Guide with Java

Transform your coding routine with Object Calisthenics. By adhering to its 9 powerful guidelines, you can enhance readability, reduce complexity, and write better code every day.

20 Sep 2024

First Class Collection with Java

First Class Collections are a game-changer in software design, enabling developers to create cleaner, more maintainable code. In this post, we explore the concept of First Class Collections, their benefits, and how they can improve your software design skills.

01 Sep 2024

How to Escape Nested Conditionals in Your Function Using the Guard clause

Tired of battling complicated, nested functions? Guard clauses might be your solution! This article explores how using guard clauses can help you handle exceptional cases efficiently.

01 Sep 2024

🧪. Testing

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Understanding How Jest Test Methods Works to Write Better Tests

Curious about Jest test methods and how they can elevate your testing game? This blog post breaks down the intricacies of Jest and provides tips on writing more effective tests for your projects.

07 Aug 2024

Unit and Integration Testing Pagination and Sorting With JPA, JUnit and Testcontainers

So, in this article, you will learn how to write unit and integration tests for Pagination and Sorting using JPA/ Hibernate with SQL (Postgres) Database and Spring Boot.

29 Sep 2023

💻. Linux

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How to Easily Find All Folder Under a Linux Directory Matching Certain Criteria

Discover simple ways to find folders in a directory that match certain criteria. This guide helps you manage files easily on Windows, macOS, or Linux, making your file organization tasks easier.

10 Dec 2024

A Linux Script to Delete All the .git Folders Hidden in Your Repo Folders

This post will help you to declutter your Linux environment with our powerful script that seeks out and removes all hidden .git folders from your directories.

18 Nov 2024

🪄. Snippets

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How to Set Your Local Branch to Track a Remote Branch in Git

With this short snippet, you will learn how to track a remote branch on Git using terminal commands.

30 Sep 2025

How to Create a Git Branch From origin/master

This short post will show you how you can create a new branch from the origin/master in your repository

28 Sep 2025

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Engage, Explore, Explain, Elaborate, Evaluate: Mastering the 5E Learning Model

This 1 Technique Will Change Your Learning Experience — The SQ3R Method

Want to become a Java developer? Read this

👨🏽‍💻. tutorials

How to Delete All Content in a File Using Vim

How to Generate a Git SSH Key on Your Mac and Add it to GitHub

Why Are My React Components Re-rendering Too Much?

How to Use Custom Hooks in React

🏛. Software Architecture

Hexagonal Architecture - Implementing Port and Adapter with Java

🛠. Software Design

Object Calisthenics the Practical Guide with Java

First Class Collection with Java

How to Escape Nested Conditionals in Your Function Using the Guard clause

🧪. Testing

Understanding How Jest Test Methods Works to Write Better Tests

Unit and Integration Testing Pagination and Sorting With JPA, JUnit and Testcontainers

💻. Linux

How to Easily Find All Folder Under a Linux Directory Matching Certain Criteria

A Linux Script to Delete All the .git Folders Hidden in Your Repo Folders

🪄. Snippets

How to Set Your Local Branch to Track a Remote Branch in Git

How to Create a Git Branch From origin/master

📚. BOOKCLUB

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How to Set Your Local Branch to Track a Remote Branch in Git

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