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1brc

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

akka-classic-essentials

The official repository for the Rock the JVM Akka Classic Essentials course

avro2parquet

Example program that writes Parquet formatted data to plain files (i.e., not Hadoop hdfs); Parquet is a columnar storage format.

bigqueue

A big, fast and persistent queue based on memory mapped file.

binlog

Garbage-free binary logging for Java

compress

High-performance, streaming/chunking Java LZF codec, compatible with standard C LZF package

craftinginterpreters

Repository for the book "Crafting Interpreters"

craftinterpreter

Working through the delightful "Crafting Interpreters" book

diamol

Code samples for the book "Learn Docker in a Month of Lunches"

druidlet

Embedded Druid for testing

embedded-druid

externalsortingjava

External-Memory Sorting in Java

faillang

Language based on lox from book "Crafting Interpreters" by @munificent

fpinjava

Code, exercises and solutions from the book "Functional Programming in Java"

fpinscala

Code, exercises, answers, and hints to go along with the book "Functional Programming in Scala"

funcprogjava

Working through "Functional Programming in Java" book

grav

Performance visualisation tools

grokkingfp-examples

All examples and exercises from the Grokking Functional Programming book

heftydb

High performance persistent LSM key-value store library for the JVM.

java-21-archetype

A maven archetype for generating projects with Java 21 and JUnit 5

jlox

Java implementation of the Lox programming language from the book "Crafting Interpreters"

jlox-copy

yet another jlox impl

journalling-benchmark

Microbenchmark for comparing the cost of seek/write vs pwrite from Java

kiamol

Learn Kubernetes in a Month of Lunches

lambda-factory

A fast alternative to Java Reflection API's method invocation

lambdaholv2

Java 8 Lambdas Hands-on Lab Materials

lyahgg

Learn you a Haskell for great good

mappedbus

A library for low latency IPC between multiple Java processes/JVMs. http://mappedbus.io

misc-projects

nand2tetris

Project solutions for Nand2Tetris course