# shekhargulati/30-seconds-of-java

Curated collection of useful little Java functions that you can understand quickly

Repository: https://github.com/shekhargulati/30-seconds-of-java
Canonical: https://ross.abutalabs.com/products/shekhargulati-30-seconds-of-java
Homepage: https://shekhargulati.com/
Language: Java
License: CC0-1.0
License Family: permissive
Topics: java, awesome, awesome-list, snippets, snippets-collection, learn-to-code
Last push: 2022-09-26T13:05:04+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": 3176, "days_push": 1437, "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 1055, forks 147 (observed 2026-08-28T04:03:24.295049+00:00)

## What it is
A curated collection of small, easy-to-understand Java 8 utility functions covering arrays, math, strings, IO, and more. It is a learning reference in the style of 30-seconds-of-code, not a published library.

## Use cases
- learn common java utility snippets
- find a quick java snippet for string manipulation
- reference for array operations in java
- study java 8 idioms
- copy small helper functions into a java project

## When to choose
- you want short, readable Java snippets to learn from or copy
- you need a quick reference for common Java utility patterns

## When to avoid
- you need a maintained, dependency-ready utility library like Guava or Apache Commons
- you need functions beyond the curated snippet set or newer Java features

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools, documentation
- domain: programming-languages, tutorials
- platform: jvm
- tags: java-8, code-snippets, awesome-list, cheatsheet, learning, algorithms

## Member repositories
- shekhargulati/30-seconds-of-java (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:24.295049+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 2026-08-30T06:58:40.560796+00:00, confidence not recorded.
  - readme: https://github.com/shekhargulati/30-seconds-of-java (fetched 2026-08-28T04:03:24.295049+00:00, sha b7a710bb977c)
- Data as of 2026-08-30T08:39:29.467469+00:00.