# Code metrics | PMD Source Code Analyzer

# Code metrics

The following pages and posts are tagged with

Title | Type | Excerpt
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Adding support for metrics to a language | Page | PMD's Java module has an extensive framework for the calculation of metrics, which allows rule developers to implement and use new code metrics very simply. ...
Index of Apex code metrics | Page | Index of the code metrics available out of the box to Apex rule developers.
Index of Java code metrics | Page | Index of the code metrics available out of the box to Java rule developers.
Using and defining code metrics for custom rules | Page | Since version 6.0.0, PMD is enhanced with the ability to compute code metrics on Java and Apex source (the so-called Metrics Framework). This framework provi...