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I just switched from Eclipse to IntelliJ. IntelliJ lacks one feature from Eclipse - when you put your mouse over a method, Eclipse shows javadoc info. I think the way to show it is to use a shortcut - command+J, but when I click it, I get something wrong as on the screen shot below. Please advise me on how I can quickly get javadoc information. I need to at least know what type a method returns.
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View Javadocs in the editorHover the mouse over the necessary symbol in the editor. Place the caret at the symbol and press Ctrl+Q (View | Quick Documentation). Press Ctrl+Q again to open this documentation in the Documentation tool window.
Accessing the Javadoc from NetbeansSelect the desired package, class or method name, right-click and select Show Javadoc. This will launch your default web browser and navigate to the Javadoc for the selected item.
Here are two fast and easy ways to add Javadoc to IntelliJ so you can see it using the "Quick Documentation" feature: simply hover your mouse on any piece of code or use the Quick Documentation shortcut key, Ctrl+Q for Linux or Windows and F1 on macOS!
Writing Javadoc Comments In general, Javadoc comments are any multi-line comments (" /** ... */ ") that are placed before class, field, or method declarations. They must begin with a slash and two stars, and they can include special tags to describe characteristics like method parameters or return values.
Alternatively you can position your cursor on the item and show JavaDoc using
CTRL+Q
which is the default shortcut.
Edit: As Methical mentioned on Mac the shortcut is
CTRL+j (^+j not ⌘+j)
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Use View | Quick Documentation or the corresponding keyboard shortcut (by default: Ctrl+Q on Windows/Linux and Ctrl+J on macOS or F1 in the recent IDE versions). See the documentation for more information.
It's also possible to enable automatic JavaDoc popup on explicit (invoked by a shortcut) code completion in Settings | Editor | General | Code completion (Autopopup documentation):
Yet another way to see the quick doc is on mouse move:
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