javaeclipseintellij-ideakeyboard-shortcutshotkeys

Reputation: 2931

Any way (or shortcut) to auto import the classes in IntelliJ IDEA like in Eclipse?

In Eclipse, while coding in Java and press Ctrl + Shift + O auto import all the Classes automatically.
In NetBeans, this is done with Ctrl + Shift + I.

Is any way to do this in IntelliJ IDEA?

I searched an equivalent shortcut in google, StackOverflow, IntelliJ IDEA configuration and in the official IntelliJ website Keyboard Shortcuts You Cannot Miss

Upvotes: 168

Answers (13)

lopespietro

Reputation: 1

With the blinking cursor positioned on the line where your "extends Something" is located, just press "ctrl + ." on your keyboard.

This will either automatically import the class you want to extend or open a list where the first option will be the class you need to import. Then, just press Enter to confirm.

So, "ctrl + ." or "ctrl + ." and than "Enter".

@edit

As a beginner in programming, I was looking for a simple solution to a specific problem. Most answers I found, even widely validated ones, didn’t offer anything as straightforward as the two-key shortcut my IDE suggested as a default shortcut (so, there is one). Some suggested reconfiguring the environment, which seemed unnecessary for my issue, or shortcuts that didn't work for me. To help others with a similar need, I’m sharing this simple solution. I hope it meets the community's criteria, and as a newcomer, I welcome all feedback to guide me in the community's guidelines. Thank you!

Upvotes: 0

REghZY

Reputation: 69

As others mentioned, IntelliJ auto imports them on the fly (if enabled in the settings).

If you want to do this across an entire project, what you can do is replace all (CTRL+SHIFT+H) occurrences of the class name to include the package too (e.g. MyClass -> com.app.MyClass), and then you can run the "Remove Unnecessary Qualifications" inspection on the whole project by pressing ALT+Enter on some code that was replaced. Then once the inspection is done, just keep clicking the "Replace qualified name with import" button on the right.

I couldn't find any other way to do the project-wide auto import

Upvotes: 0

y2k-shubham

Reputation: 11607

UPDATE

@ntg has given a very smart solution for converting import .* to individual imports in existing files (it is not completely automatic, but still quite low-effort)

Go to any import .* statement and press Alt Enter (⌥ return on Mac)
- a popup will appear to replace the * import with individual imports
then just hit Enter again

Original answer

Not sure if this is universal but I've found that after enabling both the following settings (as told in earlier answers), my IntelliJ is able to smartly convert package.* imports into individual imports (in existing files) just by deleting the import com.company.package.* line

Add unambiguous imports on the fly
Optimize imports on the fly

Essentially it will be able to add all 'unambiguous' imports for us, the rest will have to be resolved manually

I'm using

IntelliJ IDEA Ultimate 2022.1 (Build #IU-222.3739.54)
MacOS Monterey 12.5.1

Upvotes: 1

Dexter

Reputation: 4275

Another option is to ask IDEA to behave like eclipse with eclipse shortcut keys. You can use all eclipse shortcuts by enabling this.

Here are the steps:

1- With IDEA open, press Control + `. Following options will be popped up.

2- Select Keymap. You will see another pop-up. Select Eclipse there.

If you don't see "Keymap" in the options, install "Eclipse Keymap" plugin

3- Now press Ctrl + Shift + O. You are done!

Upvotes: 5

Mbuso Kotobe

Reputation: 140

Hover on top of the code which needs a class then press

alt + shift + Enter

This will auto import the needed class.

Upvotes: -1

Unnikrishnan S

Reputation: 1

Use Alt+Enter for importing a single package or use Alt+Shift+Enter to auto import all the unambiguous packages in the current file.

Upvotes: -1

Jun

Reputation: 103

Use control+option+O to auto-import the package or auto remove unused packages on MacOS

Upvotes: -2

NarendraR

Reputation: 7708

Use control+option+L to auto import the package and auto remove unused packages on Mac

Upvotes: 0

Lyncean Patel

Reputation: 2711

Can't import all at once but can use following combination:

ALT + Enter --> Show intention actions and quick-fixes.

F2 --> Next highlighted error.

Upvotes: 21

atlas_scoffed

Reputation: 4127

I think the best solution, though not exactly the same as Eclipse/Netbeans, is to change the 'Optimize Imports' settings.

Under Preferences > Editor > General > Auto Import

Set Add unambiguous imports on the fly

Edit: Using this method, when there are ambiguous imports, IntelliJ will let you know, and you can then use Alt + Enter method outlined in the answer by Wuaner

I find that, almost always, the most appropriate Import is at the top of the list.

Upvotes: 35

Wuaner

Reputation: 969

Seems like IntelliJ IDEA will import missed class automatically, and you can import them by hit Alt + Enter manually.

Upvotes: 10

teknopaul

Reputation: 6762

Not all at once. But you can press

Alt + Enter

People assume it only works when you are at the particular item. But it actually works for "next missing type". So if you keep pressing Alt + Enter, IDEA fixes one after another until all are fixed.

Upvotes: 83

Javaru

Reputation: 31906

IntelliJ IDEA does not have an action to add imports. Rather it has the ability to do such as you type. If you enable the "Add unambiguous imports on the fly" in Settings > Editor > General > Auto Import, IntelliJ IDEA will add them as you type without the need for any shortcuts. You can also add classes and packages to exclude from auto importing to make a class you use heavily, that clashes with other classes of the same name, unambiguous.

For classes that are ambiguous (or is you prefer to have the "Add unambiguous imports on the fly" option turned off), just type the name of the class (just the name is OK, no need to fully qualify). Use code completion and select the particular class you want:

Notice the fully qualified names to the right. When I select the one I want and hit enter, IDEA will automatically add the import statement. This works the same if I was typing the name of a constructor. For static methods, you can even just keep typing the method you want. In the following screenshot, no "StringUtils" class is imported yet.

Alternatively, type the class name and then hit Alt+Enter or ⌥+Enter to "Show intention actions and quick-fixes" and then select the import option.

Although I've never used it, I think the Eclipse Code Formatter third party plug-in will do what you want. It lists "emulates Eclipse's imports optimizing" as a feature. See its instructions for more information. But in the end, I suspect you'll find the built in IDEA features work fine once you get use to their paradigm. In general, IDEA uses a "develop by intentions" concept. So rather than interrupting my development work to add an import statement, I just type the class I want (my intention) and IDEA automatically adds the import statement for the class for me.

Upvotes: 139

Any way (or shortcut) to auto import the classes in IntelliJ IDEA like in Eclipse?

Answers (13)

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