Rock the JVM

Teaching #Scala, #Kotlin, #Spark, #Flink and tech on the JVM.

📹 Videos at
🔖 Articles at

[Rock the JVM @rockthejvm]

New podcast episode!

Richard Eisenberg (@RaeHaskCaml) on OCaml, effective AI, teaching programming, career pivot points, Haskell, language design, hiring and much more:

[Rock the JVM @rockthejvm]

We're all system designers now I guess

[Rock the JVM @rockthejvm]

All updates are free for everyone currently enrolled. Cheers!

[Rock the JVM @rockthejvm]

The Spark Performance Tuning course is updated for Spark 4.1, and with new content on shuffle compression.

That makes the Spark Bundle the most complete training on Apache Spark anywhere.

You'll get better hands-on skills than $3000 worth of Databricks trainings, >15x cheaper.

[Rock the JVM @rockthejvm]

Check out the complete Spark Bundle if you're interested

https://t.co/TFBkmcX2kM

[Rock the JVM @rockthejvm]

Idiomatic Scala and efficient code can go together just fine

[Rumble Tumble Kid @rumbletumblekid]

@rockthejvm So, you're saying we should drop idiomatic Scala on the JVM?🤔

[Rock the JVM @rockthejvm]

How to escape the RAMageddon:

write efficient code again

[Rock the JVM @rockthejvm]

By the way, everyone currently enrolled gets all the above updates for free. Same with future updates!

[Rock the JVM @rockthejvm]

Massive update landed on the Spark Optimization course:

Everything updated for Spark 4.1, about 25% lessons updated + a brand new chapter.

No other course on the market shows all the techniques in this course, and it's > 10x cheaper than equivalent Databricks training.

[Rock the JVM @rockthejvm]

If you're interested:

https://t.co/1h6VzQuSqI

[Rock the JVM @rockthejvm]

Apple Podcasts:
https://t.co/0fbhxK7Gzv

[Rock the JVM @rockthejvm]

New podcast episode!

Richard Eisenberg (@RaeHaskCaml) on OCaml, effective AI, teaching programming, career pivot points, Haskell, language design, hiring and much more:

[Rock the JVM @rockthejvm]

Spotify:
https://t.co/ns4sEfmPrj

[Rock the JVM @rockthejvm]

recursion > loops
tail recursion compiles to loops

ergo
tail recursion >>>> loops

[Kit Langton @kitlangton]

recursion > loops ✊

[Rock the JVM @rockthejvm]

Talking to people about how they think about AI, I just noticed we're

A. In various stages of grief:
"writing by hand"
"I hate LLMs"
"If I knew AI was coming..."
"AI is taking the joy of programming away"
"Oh well, we'll adapt"

B. In a mix of excitement and bewilderment, some bordering on mania

[Rock the JVM @rockthejvm]

"Hiring Scala developers is hard" is a myth.

You can far more easily hire for good foundations and train them to use the language properly. Good people get productive in a few days.

All that, and about 5x cheaper than hiring the perfect developer with all the checkboxes.

[Rock the JVM @rockthejvm]

Check it out:

https://t.co/i795YsoDi2

[Rock the JVM @rockthejvm]

MASSIVE update for the Spark Streaming course:

About 60% of the course re-recorded or brand new. Spark 4.x, better integrations, new stateful transformations, and a brand new project.

It's now the most complete Spark Streaming course on the market, >15x cheaper than Databricks.

[Rock the JVM @rockthejvm]

@odersky @scalarconf Such high praise, thank you!

[Rock the JVM @rockthejvm]

My live-coding talk @scalarconf about capture checking in Scala 3 is out!

https://t.co/nRgIKhobKW