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Java Tutorials

Checkstyle Source Code Analyzer Tool

Overview

Checkstyle is a source code analyzer tool to help Java developers write Java source code that adheres to a Java coding standard. The tool is licensed under the GNU LGPL license. (Lesser General Public License)

Checkstyle inspects the Java source code and reports the violations of a defined set of coding rules. It automates the process of checking Java source code and enforcing a coding standard into Java projects.

Consistent coding practices are a must for Java projects that involve more than one developer. Source code that conforms to a coding standard is more readable and maintainable.

Java coding standards

The tool support two popular coding standards:

  • Sun’s coding conventions
  • Google’s coding convention

Having said that,  Checkstyle is highly configurable and can be made to support any defined coding standard.

Install Checkstyle Eclipse Plugin

Launch Eclipse IDE.

Choose Help ->> Eclipse Marketplace… menu option.

Search for Checkstyle in the Find box.

Click on the Install button.

Follow the instructions in the install wizard screen.

 

Checkstyle Eclipse Plugin

To activate the tool on the project in the IDE, right-click on the project

Right click>> Checkstyle >> Activate Checkstyle.

Maven Checkstyle plugin

We can use the Maven Checkstyle plugin, to integrate the tool into the build process of the Java project. Add the plugin to the pom.xml file of the project.

Tool Features

https://www.testingdocs.com/checkstyle-tool-features/

Official Website

https://checkstyle.org/

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