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How a Java HashMap internal implementation works

One of the most commonly asked advanced Java interview questions is: How does a HashMap work internally? If you want to grok the interview, you'll need to know these details.

How developers can benefit from AI in job hiring

Companies increasingly rely on AI in job recruitment and hiring. Here's what software engineers must know to get seen and get ahead of the game.

SonarQube code coverage tutorial for beginners

Most software bugs follow common patterns that continuous inspection tools identify before production deployment. If you're not already using SonarQube, here's how to get started.

A developer's guide to thrive vs. AI in coding

Will AI replace software developers? No, if humans focus on what they can do best and AI can't: experienced analysis, imagination and creativity.

Story points and hours of effort in Scrum

Story points and hours help Agile teams calculate the amount of work and time estimated to complete tasks. Here's how these systems are different.

Coffee Talk: News & Insight

What is Scrum? The Scrum process explained in 5 minutes
Darcy DeClute 07 Apr 2025
The Scrum framework is the software development industry's most popular Agile methodology. Here are the key steps that define how the Scrum process flows.
Is GitHub Copilot free?
Cameron McKenzie 03 Apr 2025
GitHub copilot pricing includes a basic free tier that provides code completions and chat requests. But does that mean GitHub copilot is free? Yes and no.
How to delete a local Git branch
Cameron McKenzie 30 Jan 2025
Here's a quick example of how to delete local Git branches from your workstation without deleting remote branches in your GitHub or GitLab repos.
How to download and install Java 21 on Windows
Cameron McKenzie 06 Jan 2025
2024 is a great time to start working with Java, because 2023's Java 21 release has some amazing new features. Here's how to quickly download and install the ...
How to install Java 21 on Ubuntu
Cameron McKenzie 01 Jan 2025
Here's the easiest way to install Java on Ubuntu with apt. Follow these steps and you'll get the JDK installed in no time, and be ready to use your Java on ...
The 5-second rule to create effective technical illustrations
Bob Reselman 12 Dec 2024
Like any picture, a well-crafted technical illustration is worth a thousand words. Make the most of your diagrams and flowcharts and follow the 5-second rule ...
How to pitch to VCs: 5 questions a tech startup must answer
Bob Reselman 02 Dec 2024
Tech startups pitching investors for funding must quickly and convincingly present their business case. Prepare your answers to these five questions and you'll...
What is Maven in Java? Crash course tutorial for beginners
Cameron McKenzie 05 Nov 2024
Need to learn Apache Maven fast? This crash course Maven tutorial will quickly get you up to speed on the popular, open-source, Java build tool.
Get started with Spring Boot 3 tutorial
Cameron McKenzie 01 Nov 2024
Need to learn Spring Boot 3? Want to quickly build a Spring Boot app with RESTful web services? This tutorial will help you create your first Spring Boot ...
Spring Boot file upload example
Cameron McKenzie 27 Oct 2024
Do you need to find a Spring Boot file upload that uses Ajax and works with Spring MVC web apps? This example uses HTML5 file input fields and a pure ...