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checkstyle: Automated Google & Sun Coding Convention Checker

checkstyle/checkstyle

·2026.08.30 20:14

Automatically verifies that Java code adheres to established coding standards and best practices. It proactively detects style violations and potential errors that developers might miss during manual code reviews.

It supports the Google Java Style Guide and Sun Code Conventions by default, but rules can be fine-tuned via XML configuration files. It can be run as a command-line program or an ANT task, making it easy to integrate into the build process.

Beyond simple formatting, it detects logical mistakes such as switch statement fall-throughs. As a static code analysis tool, it plays an essential role in maintaining consistent code quality standards across the entire team.

GitHub
GitHub repository

checkstyle/checkstyle

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.

Java

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