Javadoc

Javadoc

Javadoc is a tool used to generate API documentation for Java code. It extracts documentation comments from source code and generates HTML pages that describe packages, classes, interfaces, methods, and more.
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java documentation api

Javadoc: Generate API Documentation for Java Code

Javadoc is a tool used to generate API documentation for Java code. It extracts documentation comments from source code and generates HTML pages that describe packages, classes, interfaces, methods, and more.

What is Javadoc?

Javadoc is a documentation generator tool for the Java programming language. It allows developers to embed documentation comments directly into Java source code, using a special documentation comment syntax. Javadoc then extracts these comments and generates a set of HTML pages that describe the packages, classes, interfaces, constructors, methods, and other members in the code.

Some key features of Javadoc include:

  • Generates documentation from doc comments in source code - no need to maintain separate documentation files
  • Output includes hierarchical overviews summarizing packages and classes, documentation for each class, method, etc.
  • Automatically inheritance, interface implementations, and use relations
  • Produces HTML pages with navigation links, making it easy to navigate large code bases
  • Customizable via configuration file and custom doclet classes
  • Integrates with IDEs like Eclipse and IntelliJ to simplify doc generation and previewing

Javadoc enables easier maintenance of documentation alongside code, reduces duplication, and makes navigating and understanding large code bases significantly easier. It has become an indispensable standard tool for Java developers to document their software projects.

Javadoc Features

Features

  1. Generates API documentation from Java source code
  2. Extracts Javadoc comments and tags
  3. Produces HTML pages describing packages, classes, methods etc
  4. Can be run from the command line or via an IDE plugin
  5. Customizable via doclets and templates
  6. Can produce documentation in formats other than HTML
  7. Integrates with source control and build tools

Pricing

  • Free
  • Open Source

Pros

Automates documentation generation

Documentation stays up to date with code changes

Standardized documentation format and style

Reduces effort required to maintain documentation

Documentation accessible directly from code

Cons

Requires disciplined use of Javadoc comments

Limited customization without doclets or templates

Additional build step required

Can generate large HTML documentation sites

Only documents public APIs, not internal code


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