# amitshekhariitbhu/from-java-to-kotlin

From Java To Kotlin - Your Cheat Sheet For Java To Kotlin

Repository: https://github.com/amitshekhariitbhu/from-java-to-kotlin
Canonical: https://ross.abutalabs.com/products/from-java-to-kotlin
Homepage: https://outcomeschool.com
Language: Java
License: Apache-2.0
License Family: permissive
Topics: kotlin, kotlin-android, kotlin-language, android, java-to-kotiln, java, cheet-sheet
Last push: 2026-01-28T09:25:16+00:00

## Health v2 (maintenance only)
Score: 61/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 64, release rhythm 35, longevity 100
- inputs: {"age_days": 3391, "days_push": 217, "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 6324, forks 780 (observed 2026-08-28T04:09:41.759500+00:00)

## What it is
A cheat sheet repository that shows side-by-side code comparisons between Java and Kotlin syntax. It serves as a quick reference for Java developers learning Kotlin, especially in Android development contexts.

## Use cases
- learn kotlin syntax coming from java
- convert java code to kotlin
- kotlin vs java syntax reference
- quick reference for kotlin null safety
- migrate android project from java to kotlin
- compare java and kotlin variable declarations

## When to choose
- you are a Java developer transitioning to Kotlin
- you need a quick side-by-side syntax reference
- you are learning Kotlin for Android development
- you want concise examples rather than full tutorials

## When to avoid
- you need comprehensive Kotlin language documentation
- you are learning Kotlin without any Java background
- you need executable code or a runnable project
- you want deep coverage of advanced Kotlin features like coroutines

## Facets
- artifact type: learning-resource
- maturity: stable
- function: documentation, developer-tools
- domain: programming-languages, tutorials, mobile-development, developer-tools
- platform: jvm, cross-platform
- tags: cheat-sheet, kotlin, java, kotlin-migration, reference-guide, android-development, android

## Member repositories
- amitshekhariitbhu/from-java-to-kotlin (main) score 61

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:41.759500+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 2026-08-29T17:46:11.017696+00:00, confidence not recorded.
  - readme: https://github.com/amitshekhariitbhu/from-java-to-kotlin (fetched 2026-08-28T04:09:41.759500+00:00, sha a475d9c10145)
  - homepage: https://outcomeschool.com (fetched 2026-08-29T08:42:36.228875+00:00, sha 344ea69a9a71)
  - site_page: https://outcomeschool.com/blog/ai-is-only-as-good-as-our-definition-of-done (fetched 2026-08-29T08:42:36.240485+00:00, sha e704f054ffb2)
  - site_page: https://outcomeschool.com/blog/how-does-prefix-tuning-work (fetched 2026-08-29T08:42:36.242715+00:00, sha b5cb8764deec)
  - site_page: https://outcomeschool.com/blog/how-do-rnns-and-transformers-differ (fetched 2026-08-29T08:42:36.238355+00:00, sha f6c17c283bdb)
  - site_page: https://outcomeschool.com/blog/what-is-graph-engineering (fetched 2026-08-29T08:42:36.245418+00:00, sha 80a5eefbbe16)
  - site_page: https://outcomeschool.com/blog/what-is-loop-engineering (fetched 2026-08-29T08:42:36.248213+00:00, sha 3af5d8d628d2)
  - site_page: https://outcomeschool.com/blog/lost-in-the-middle-problem-in-llms (fetched 2026-08-29T08:42:36.250603+00:00, sha 40ebad87fb6f)
- Data as of 2026-08-30T08:39:29.467469+00:00.