Setting Javadoc Options for a Project

You can configure Javadoc to your preferences under the Documentation node of the Project Settings window.

Ask for Destination Directory If true, the IDE asks for the directory in which to generate the Javadoc documentation.
Default Search Engine Sets the search engine for javadoc to use when searching the documentation. The IDE provides support for searching documents other than the Javadoc index produced by the JDK 1.2/1.3 search engine. For example, you might plug in a search engine that enables you to search internationalized Javadoc documentation. The default is the JDK 1.2/1.3 search engine.
Javadoc Executor Type Sets the executor to use for generating javadoc. You can run javadoc inside the IDE using the internal javadoc or on its own using an external javadoc. An advantage of running javadoc externally is that it uses less memory than running javadoc internally. A disadvantage is that an external javadoc cannot run on some types of filesystems, such as a JAR filesystem. The default is the external executor.
Show in Browser If true, displays the generated documentation in the web browser.
See also
Working With Javadoc Documentation

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