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Java Format

Category: Engineering  ·  Sub-category: languages  ·  Last updated:
lang:java
Apply google-java-format (AOSP style, in place) to Java files: the changed files, the staged files, all files, or specific paths. It asks which google-java-format version to use (e.g. 1.7 or 1.32.0), resolves the jar (GJF_JAR, then $GJF_DIR if set, then a cache, else auto-downloads that version), and runs it. Use when you want to format Java code to the project style, before committing. Triggers on phrases like 'google-java-format 적용', '자바 코드 스타일 적용', '변경된 자바 포맷', 'format the java files', 'apply java formatting'.
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From the source SKILL.md

Format Java files with google-java-format in AOSP style, replaced in place (-a -r). Handles the four scopes: changed, staged, all, or explicit paths.

What this skill does

Java Format is a community-contributed Claude Code skill in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/java-format/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when you want to format Java code to the project style, before committing. Triggers on phrases like 'google-java-format 적용', '자바 코드 스타일 적용', '변경된 자바 포맷', 'format the java files', 'apply java formatting'.

Who uses this skill

The Java Format Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 168,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/java-format
curl -L https://claudskills.com/skills/java-format/SKILL.md \
  -o ~/.claude/skills/java-format/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/java-format/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/java-format/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\java-format\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Java Format Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/java-format/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Java Format skill do?
Apply google-java-format (AOSP style, in place) to Java files: the changed files, the staged files, all files, or specific paths. It asks which google-java-format version to use (e.g. 1.7 or 1.32.0), resolves the jar (GJF_JAR, then $GJF_DIR if set, then a cache, else auto-downloads that version), and runs it. Use when you want to format Java code to the project style, before committing. Triggers on phrases like 'google-java-format 적용', '자바 코드 스타일 적용', '변경된 자바 포맷', 'format the java files', 'apply java formatting'.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Java Format skill?
Use Java Format when your Claude Code task falls under the Engineering category — specifically in the languages area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Java Format" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Java Format skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Java Format is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
Srltas. (2026). Java Format [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/java-format/
BibTeX
@misc{java-format-2026,
  author    = {Srltas},
  title     = {Java Format [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/java-format/}
}

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Security scan

Grade A · scanned 2026-07-31 — free static scan against the OWASP Agentic Skills Top 10.

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More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills
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