# hellokaton/learn-java8

💖《跟上 Java 8》视频课程源码

Repository: https://github.com/hellokaton/learn-java8
Canonical: https://ross.abutalabs.com/products/learn-java8
Language: Java
License: BSD-3-Clause
License Family: permissive
Topics: java8-tutorial, java8-learning, java8-study, java8-optionals, java8-stream
Last push: 2019-06-30T06:46:05+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3129, "days_push": 2621, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1389, forks 410 (observed 2026-08-28T04:04:35.378084+00:00)

## What it is
Source code repository for the 'Keep Up with Java 8' video course, teaching Java 8 core features like lambdas, streams, and Optionals. Each lesson's examples live in dedicated Maven modules accompanying the online videos.

## Use cases
- learn java 8 lambda expressions
- understand java 8 streams with examples
- study java 8 optional usage
- find java 8 functional programming examples
- follow a structured java 8 tutorial with source code

## When to choose
- you want lesson-by-lesson example code for Java 8 features
- you prefer learning functional programming in Java through worked examples
- you are following the accompanying video course

## When to avoid
- you need coverage of Java 11+ features
- you want a maintained library rather than educational sample code
- you need production-ready code

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools
- domain: programming-languages, tutorials, education
- platform: jvm, cross-platform
- tags: java8, lambda, streams, optional, video-course, tutorial-code

## Member repositories
- hellokaton/learn-java8 (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:35.378084+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 2026-08-30T04:39:42.733208+00:00, confidence not recorded.
  - readme: https://github.com/hellokaton/learn-java8 (fetched 2026-08-28T04:04:35.378084+00:00, sha 47859db2ed09)
- Data as of 2026-08-30T08:39:29.467469+00:00.