# SpencerPark/IJava

A Jupyter kernel for executing Java code.

Repository: https://github.com/SpencerPark/IJava
Canonical: https://ross.abutalabs.com/products/ijava
Language: Java
License: MIT
License Family: permissive
Topics: jupyter, jupyter-kernels, java, ijava
Last push: 2024-06-01T04:30:45+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3251, "days_push": 823, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1188, forks 222 (observed 2026-08-28T04:03:55.345322+00:00)

## What it is
IJava is a Jupyter kernel that lets you execute Java code inside Jupyter notebooks. It provides an interactive Java REPL experience with support for Jupyter magics, shell commands, and rich output.

## Use cases
- run java code in jupyter notebooks
- teach java interactively in a notebook environment
- use java as a jupyter kernel
- prototype java snippets in a repl
- create java notebooks for data science or education

## When to choose
- you want an interactive Java environment inside Jupyter
- you're teaching or learning Java with notebooks
- you need a Java REPL with rich output and magics

## When to avoid
- you need a production Java IDE or build tool
- you don't use Jupyter
- you need a kernel for a different JVM language like Scala or Kotlin

## Facets
- artifact type: plugin
- maturity: maintenance
- function: interpreter, developer-tools
- domain: education, developer-tools, data-science
- platform: jvm, python, cross-platform
- tags: jupyter-kernel, java, notebooks, repl

## Member repositories
- SpencerPark/IJava (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:55.345322+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:23:23.122765+00:00, confidence not recorded.
  - readme: https://github.com/SpencerPark/IJava (fetched 2026-08-28T04:03:55.345322+00:00, sha 458569650920)
- Data as of 2026-08-30T08:39:29.467469+00:00.