Follow @_The_Java_Guy_ for more content on leveling up from mid-level to senior #Java developer including latest Java features, productivity, proper OOP and more.

And this is just scratching the surface! Emmet is a time saver. Invest just 15-20 minutes and it'll give you back in multiples. (🧵 6/6).

More power? .container>(.item$*5) followed by Tab will expand to (🧵 5/6)

Now try it! Open a new HTML file and type div>p>span and press Tab. It expands to these formatted HTML tags: (🧵 4/6)

Now do the same for CSS. Go to Settings -> Editor -> Emmet -> CSS and see if Enable CSS Emmet is checked (🧵 3/6)

First check if the Emmet is turned on. Go to Settings -> Editor -> Emmet -> HTML and see if Enable XML/HTML Emmet and Enable abbreviation preview are checked (🧵 2/6)

Even as #Java developers sometimes we have to write front-end code. Did you know you can write HTML and CSS super fast in @intellijidea? The secret is IDEA's built-in support for Emmet which can turn 20-30 characters you type into 10x more HTML. This is how you can use it (🧵.

You know some #Java haters? They probably think like in this video by @fireship_dev ▶️

📣 ‼️ JCON Europe 2026 Free Ticket. You can get a free ticket to the JCON Europe Conference in Köln (Cologne) April 20th until 23rd, 2026. Link is in the comments below 👇 . #java #conference #jcon #seniordeveloper.

Prediction & hot take: the richer and more specific your #Java classes are, the easier it is for #AI assistants to generate correct code. Examples: ❌don't use plain strings for IDs, ✅create and use class ID; ❌don't use int for weight, ✅create class Weight; ❌don't keep dates.

Still questioning whether #Java is worth your time in 2025? Maybe you think of spending time on other languages, frameworks, or technologies? Read this article (link below 🔽) from Markus Westergren and see for yourself why it still matters to master Java.

Dear fellow developers, I invite you to join The Developer Interview Mastery Workshop on this Saturday July 19th. You'll learn career-changing skills like:. ✅ Where you should start when looking for a job or promotion (and it has nothing to do with the job). ✅ The simple trick.

What is the worst #Java feature?.

📹 Recordings of previous talks are available on

📣 Upcoming #Java User Group München talk "Die Zeit der manuellen Softwareerstellung geht zur Neige – oder generative KI produktiv einsetzen" 🕖 on Monday 14.07 at 19:00h, 🏠 IT-Rathaus der Stadt München, Agnes-Pockels-Bogen 33, 80992 München. Our speaker will be Hans Egermeier.

My small win for this week is that my first PR has landed in the @langchain4j project. If you want to rise to the senior level or beyond, contributing to open source is one of the best decisions you can make. You are totally free to choose the technology to work with. You can.

Don't use LLMs to write blog posts or social media content 😁.