How to implement JAVA underlying coding specifications and inspections

How to implement JAVA underlying coding standards and inspections

Introduction:
In the JAVA development process, compliance with coding standards is important for the maintainability and scalability of the project Very important. This article will introduce how to use code inspection tools to check JAVA's underlying coding standards, and illustrate it through specific code examples.

1. Select applicable code checking tools
In the field of JAVA development, there are some mature code checking tools that can be used to help developers check underlying coding standards, such as Checkstyle, FindBugs and PMD. This article will use Checkstyle as an example to explain.

2. Install and configure Checkstyle

1. Download the Checkstyle tool package, which can be obtained from the official website or Maven repository.
2. Unzip the downloaded file and add the Checkstyle jar package to the project's classpath.
3. Create the Checkstyle configuration file checkstyle.xml and configure the rules that need to be checked.
4. Configure the checkstyle.xml file into the project's build tool (such as Maven).

3. Use Checkstyle for coding specification checking

1. Configure the Checkstyle plug-in in the build tool so that it can perform code specification checking during the compilation process.
2. Execute the build command, and Checkstyle will perform standard checks on the code in the project.
3. The inspection results will be displayed in the form of a report, showing the number of lines of code that do not meet the specifications, code locations, and specific specifications.

4. Specific code examples
The following are some common JAVA underlying coding specifications, as well as examples of how to configure check rules in Checkstyle:

1. Access modification Symbol specification:
2. Private fields should be modified with private.
3. Public methods should be decorated with public.

Configuration example:

<module name="VisibilityModifier">
    <property name="allowPackageProtected" value="false"/>
    <property name="allowPackagePrivate" value="false"/>
</module>

2. Naming convention:
3. Class names, method names and variable names should use camel case naming.
4. Constant names should use uppercase letters and underscores.

Configuration example:

<module name="Naming">
    <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
    <property name="ignoreConstantCase" value="false"/>
</module>

3. Annotation specification:
4. Methods and classes should have appropriate annotations.
5. Single-line comments should begin with a double slash.
6. Multi-line comments should be surrounded by / and /.

Configuration example:

<module name="JavadocStyle">
    <property name="checkJavadoc" value="true"/>
    <property name="checkHtml" value="true"/>
    <property name="checkEmptyJavadoc" value="true"/>
</module>

5. Summary
By using code inspection tools like Checkstyle, we can quickly and effectively check JAVA underlying coding specifications. Reasonable configuration of inspection rules can help developers promptly discover and correct code that does not comply with specifications, thereby improving the maintainability and scalability of the project.

Through the introduction of this article, I hope readers can understand how to implement JAVA underlying coding specifications and inspections, and master the method of using the Checkstyle tool. In daily JAVA development, it is recommended that developers develop good coding standards and the habit of using code inspection tools to improve code quality and team collaboration capabilities.

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