How to Enable Javadoc Display on Mouse Hover in NetBeans?

How can I view Javadoc documentation when hovering over methods or classes in NetBeans?

In NetBeans, you can view Javadoc documentation on mouse hover, similar to Eclipse. This feature enhances developers' productivity by providing quick access to API information without leaving the code editor.

Causes

• Javadoc hovering may not be enabled by default in your NetBeans IDE settings.
• The project may not have the necessary Javadoc attached to libraries.

Solutions

• To enable Javadoc on hover, ensure that the Javadoc for your libraries is correctly configured. Go to the Project Properties, navigate to Libraries, and ensure the Javadoc URL is set for each library used.
• If not already set, you can add the Javadoc for Java SE or any other libraries you are using by downloading their documentation and linking it in the project settings.
• Use the keyboard shortcut `Ctrl + Space` to view the code completion options, including Javadoc, which can also provide context when you hover over certain code elements.

Mistake: Not linking the Javadoc in project libraries.

Solution: Ensure you set the Javadoc URL in the Project Properties under Libraries.

Mistake: Assuming hover functionality works without properly configured project settings.

Solution: Double-check your project settings and confirm the Javadoc documentation is correctly linked.