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Functional programming in modern Java v1.0.0

Use this resource to apply functional programming principles to Java code

New

  • 555 downloads
  • 127 likes
  • 169 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install java-functional-programming

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent replaces side effects and mutable objects with records and pure functions, simplifies Stream pipelines and the use of Optional, and uses sealed types for controlled hierarchies. It also separates effects from the rest of the code.

Mostly picked by

Updated November 2, 2026

Card for the “Functional programming in modern Java” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md : rules and application constraints
  • references/142-java-functional-programming.md : immutable, Stream, Optional and composition patterns

Good fit for

  • A Java method modifies several shared objects
  • A collection process is written as nested loops

Not for

    Tags

    • functional
    • java
    • records
    • streams

    About

    You say

    “Refactor this cart calculation into pure functions and Streams.”

    Card for the “Functional programming in modern Java” skill

    Skill published by jabrena under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to apply functional programming principles to Java code
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE11.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/142-java-functional-programming.md44.4 KB
    • SKILL.md4.3 KB

    Origin and licence

    Listed unmodified

    Author
    jabrena
    Source
    github.com/jabrena/plinth/tree/b1c04e39a93d9aac4a70e5154cd50ab6d47fdcf8/skills/142-java-functional-programming
    Licence
    Apache-2.0

    Notice

    « 142-java-functional-programming » (jabrena, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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