# shekhargulati/java8-the-missing-tutorial

Java 8 for all of us

Repository: https://github.com/shekhargulati/java8-the-missing-tutorial
Canonical: https://ross.abutalabs.com/products/java8-the-missing-tutorial
Homepage: https://shekhargulati.com/
Language: Java
License: MIT
License Family: permissive
Topics: java-8, tutorial, missing-tutorial, lambda, java-tutorial
Last push: 2019-10-23T09:09:20+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3942, "days_push": 2506, "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 1569, forks 371 (observed 2026-08-28T04:05:05.295697+00:00)

## What it is
A free microbook-style tutorial covering the most important Java 8 features such as lambdas, streams, collectors, Optionals, and the Date Time API. It is based on the author's '7 days with Java 8' blog series and is written for Java developers wanting to learn modern Java idioms.

## Use cases
- learn java 8 lambdas and streams
- understand java 8 optional and collectors
- java 8 tutorial for day to day programming
- learn the java 8 date time api
- quick reference for java 8 features

## When to choose
- you are a Java developer new to Java 8 features
- you want a concise free tutorial rather than a full book
- you need examples of streams, lambdas, and Optionals

## When to avoid
- you need coverage of Java 9+ features
- you want an interactive course or video content
- you need a maintained reference for the latest Java versions

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation
- domain: tutorials, programming-languages, developer-tools
- platform: jvm, cross-platform
- tags: java-8, tutorial, lambdas, streams, microbook

## Member repositories
- shekhargulati/java8-the-missing-tutorial (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:05.295697+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 2026-08-30T03:58:54.276202+00:00, confidence not recorded.
  - readme: https://github.com/shekhargulati/java8-the-missing-tutorial (fetched 2026-08-28T04:05:05.295697+00:00, sha 73259390e013)
- Data as of 2026-08-30T08:39:29.467469+00:00.