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Google
google.github.io › styleguide › javaguide.html
Google Java Style Guide
This document serves as the complete definition of Google's coding standards for source code in the Java™ Programming Language. A Java source file is described as being in Google Style if and only if it adheres to the rules herein.
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GitHub
github.com › google › google-java-format
GitHub - google/google-java-format: Reformats Java source code to comply with Google Java Style. · GitHub
August 14, 2026 - google-java-format is a program that reformats Java source code to comply with Google Java Style.
Author: google
Discussions

Google Java Coding Standards
These are pretty good. I definitely laughed at this comment: It is extremely rare to override Object.finalize. Tip: Don't do it. If you absolutely must, first read and understand Effective Java Item 7, "Avoid Finalizers," very carefully, and then don't do it. More on reddit.com
🌐 r/java
103
156
January 29, 2014
visual studio code - Google Styleguide Java Format for VSCode - Stack Overflow
Is there a good extension or proven methodology to automatically format Java code in VSCode to adhere to Google's Java Styleguide? Nothing from the list of links below seems to work for my set-up. More on stackoverflow.com
🌐 stackoverflow.com
Google Java style rules fail with code formatted using Google Java Format tool
If one is running Google Java Format always (i.e. "on save" or similarly), Checkstyle isn't helpful in any sort of way to begin with as the format cannot be influenced - Google formatter will modify even the code that does (in principle) conform to the described Google style guide. More on github.com
🌐 github.com
14
March 7, 2019
Codestyle and formatters
Spotless? It can use the eclipse formatter which is pretty configurable, or the Google formatter, or others. More on reddit.com
🌐 r/java
27
18
October 21, 2024
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DEV Community
dev.to › scottshipp › which-java-code-style-should-you-use-1k5a
Which Java code style should you use? - DEV Community
October 1, 2019 - If you use a build tool like Maven, ... uses Google style). That may feel a bit extreme. You may be comfortable with just letting your IDE support this, in which case you would want to get a hold of an XML file for the code style settings that you can import into Eclipse or IntelliJ. It's really up to you. All that being said, you also probably want to grapple with how to approach Java 8+ features ...
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Reddit
reddit.com › r/java › google java coding standards
r/java on Reddit: Google Java Coding Standards
January 29, 2014 - Anyone here Hated Using Java but now Really Enjoys using it. ... The Google Style Guides project holds the C++, C#, Swift, Objective-C, Java, Python, R, Shell, HTML/CSS, JavaScript, TypeScript, AngularJS, Common Lisp, and Vimscript Style Guide.
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GDS Way
gds-way.digital.cabinet-office.gov.uk › manuals › programming-languages › java.html
Java style guide - The GDS Way
Follow the Kernighan and Ritchie (K&R) ‘Egyptian brackets’ style where there is no line break before the opening brace. See the braces section of the Google Java style guide for more details. Use the GDS Way EditorConfig file, which has settings for things like code indentation.
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Domyassignments
domyassignments.com › home › introduction to google java coding style
Introduction to Google Java Coding Style
March 1, 2024 - In the realm of software development, code readability and consistency are crucial for the maintainability and scalability of projects. The Google Java Coding Style represents a set of guidelines designed to standardize Java code, making it ...
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GitHub
github.com › google › styleguide › blob › gh-pages › intellij-java-google-style.xml
styleguide/intellij-java-google-style.xml at gh-pages · google/styleguide
<codeStyleSettings language="JAVA"> <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false" /> <option name="KEEP_BLANK_LINES_IN_CODE" value="1" /> <option name="BLANK_LINES_AFTER_CLASS_HEADER" value="1" /> <option name="ALIGN_MULTILINE_PARAMETERS" value="false" /> <option name="ALIGN_MULTILINE_RESOURCES" value="false" /> <option name="ALIGN_MULTILINE_FOR" value="false" /> <option name="CALL_PARAMETERS_WRAP" value="1" /> <option name="METHOD_PARAMETERS_WRAP" value="1" /> <option name="EXTENDS_LIST_WRAP" value="1" /> <option name="THROWS_KEYWORD_W
Author: google
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JetBrains
plugins.jetbrains.com › plugin › 8527-google-java-format
google-java-format Plugin for JetBrains IDEs | JetBrains Marketplace
June 27, 2025 - Formats source code using the google-java-format tool. This plugin requires additional IDE configuration. For more information, read the documentation. What’s New: 1.36.1.1. Move settings page to Tools section. 1.36.1.0. Updated to use google-java-format 1.36.1. 1.35.0.0. Updated to use google-java-format 1.35.0.
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Cornell Computer Science
cs.cornell.edu › courses › JavaAndDS › JavaStyle.html
Java Code Style Guidelines
For example, the declarations in a class, the body of a method, and the if-part and then-part of a conditional statement should be indented. We prefer indentation of 4 spaces, not 2. In Eclipse, you can set the amount to indent using menu item Preferences -> Java -> Code Style -> Formatter.
Find elsewhere
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Google
developers.google.com › style › code samples
Code samples | Google developer documentation style guide | Google for Developers
October 10, 2025 - Some open source projects have their own overriding style guides. For example, Java code in the Android Open Source Project follows the AOSP Java Code Style for Contributors guide.
Top answer
1 of 7
12

I spent some time working on this same problem yesterday. The best and most reliable solution I was able to come up with was to install google-java-format into my path and then use the RunOnSave extension to invoke the binary for files with the .java extension.

Install emeraldwalk/vscode-runonsave:

$ code --install-extension emeraldwalk.RunOnSave

Install google-java-format for your system:

# Example using Homebrew on OS X
$ brew install google-java-format

Configure RunOnSave in Visual Studio Code settings:

{
  "emeraldwalk.runonsave": {
    "commands": [
      {
        "match": "\\.java$",
        "cmd": "google-java-format --replace ${file}"
      },
    ],
  },
}

I describe more of the methodology in this blog post.

2 of 7
2

google-java-format requires Java 16.0.1 SDK. You have to install it first.

There is an extension ilkka.google-java-format on the Visual Studio Code marketplace, but it is incompatible with current version.

I have to change it this way:

  1. Open file : C:\Documents and Settings\<USERNAME>\.vscode\extensions\ilkka.google-java-format-1.0.2\out\extension.js

  2. Update function provideDocumentRangeFormattingEdits this way:

    return new Promise((resolve, reject) => {
        let stdout = "";
        let stderr = "";
        let child = cp.spawn("java.exe",
            [
                "--add-exports", "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",
                "--add-exports", "jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED",
                "--add-exports", "jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED",
                "--add-exports", "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
                "--add-exports", "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
                "-jar",
                executablePath,
                "--lines",
                `${range.start.line}:${range.end.line}`,
                "-",
            ]);
    
  3. In Settings -> Preferences set executablePath to path to jar archive (google-java-format-1.10.0-all-deps.jar)

Enjoy

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Checkstyle
checkstyle.sourceforge.io › google_style.html
Google's Java Style Checkstyle Coverage
- Existing Check covers some part of requirements from Google. - Requirements are not possible to check by Checkstyle at all. ATTENTION: Links to config and sample files in the following table reference to latest (not released yet) config. Config might be slightly different from what we have in the latest release. Please always use config that is embedded to jar or use a custom version copied from one that matches your checkstyle version. Sample files consists of files that show what code is correct and what is not.
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GitHub
github.com › codeset › google-java-styleguide
GitHub - codeset/google-java-styleguide: Google Java代码风格规范 (中文版) · GitHub
Google官方原文链接 · 已存在的中文翻译版本链接 · ##Eclipse导入代码风格配置文件 · 首先下载配置文件链接 · 在Eclipse中执行导入:Window -> Preferences -> Java -> Code Style -> Formatter -> Import · Code license · Artistic License/GPL ·
Author: codeset
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Google
google.github.io › styleguide › cppguide.html
Google C++ Style Guide
Trailing return type syntax has ... as C and Java, so some readers may find it unfamiliar. Existing codebases have an enormous number of function declarations that aren't going to get changed to use the new syntax, so the realistic choices are using the old syntax only or using a mixture of the two. Using a single version is better for uniformity of style...
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GitHub
github.com › checkstyle › checkstyle › issues › 6527
Google Java style rules fail with code formatted using Google Java Format tool · Issue #6527 · checkstyle/checkstyle
March 7, 2019 - If one is running Google Java Format always (i.e. "on save" or similarly), Checkstyle isn't helpful in any sort of way to begin with as the format cannot be influenced - Google formatter will modify even the code that does (in principle) conform to the described Google style guide.
Author: checkstyle
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Firebase
firebase.google.com › documentation › firebase studio
Firebase Studio
Firebase Studio supports multiple modes to cater to different development styles: Coding with full control: Work directly in a Code OSS-based IDE where you can import existing repositories or start new projects, and use extensions from the Open VSX Registry. Gemini provides workspace-aware AI assistance with code completion, code generation, testing, tool-running, and documentation.
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Developer Guidelines
devguide.trimble.com › code-style › java
Java Code Style | Developer Guidelines
March 5, 2025 - Google Java Style Guide · None. CEC Checkstyle · Google Checkstyle · Installation of Checkstyle in IntelliJ and Eclipse · View on GitHub · Was this page helpful? Thanks for your feedback! Please, provide feedback about how we can improve the page.
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Codecademy
codecademy.com › learn › learn-java
Java Tutorial: Learn Java Programming | Codecademy
Learn essential Java coding style rules with the Java style guide, including naming conventions, brackets, spacing, and indentation best practices.
Rating: 4.4 ​ - ​ 10.8K votes
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GitHub
github.com › JunHoPark93 › google-java-styleguide
GitHub - JunHoPark93/google-java-styleguide: Google의 Java StyleGuide를 번역한 문서 📝
이 문서는 구글의 Java언의 코딩 표준의 완벽한 정의 문서이다. 자바 소스 파일은 이 문서의 규칙을 고수해야만 Google Style이라 칭할 수 있다.
Author: JunHoPark93