r/JavaProgramming • u/jhb0103 • 3d ago

Interactive labs for Java/Spring/JPA concepts that I made for my own study

I made this to study and thought I'd share it:

https://jhb010311.github.io/dev-learning-lab/en/

You change the settings, click Run, and step through what happens. Free, no sign-up.

If you spot something wrong, let me know.

https://github.com/jhb010311/dev-learning-lab

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u/investigatormaker 3d ago

Opening Dev Learning Lab, the strongest part was the lab titles written as questions, like "Why can HashMap not find the key when you override only equals?", but they sit inside a 2,980-word index, and the page's buttons go to "SELECT processing order" and "OAuth login flow" rather than anything Java. One start-here button under the headline, pointing to that HashMap lab, would give someone from this sub a place to begin. Since you asked about mistakes, a link for reporting them to the repo's issues would collect them in one place.

I make ThreadFox. I went through Dev Learning Lab as a first-time visitor and wrote up what I hit, and the full check is free: https://threadfox.vip/p/dev-learning-lab

Which lab do you most want people to try first?

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u/Ambitious-Public-575 2d ago

OP this is really good