Due to a massive refactoring, i ended up having a lot of unused imports across many files. Using Eclipse, is there a way to remove them all?
I think there is no one shot solution through cleanup.
1) right click on package then Source->Organize Imports
2)`Ctrl+Shift+O` .
Here is Save Actions another way which can even avoid Ctrl+Shift+O
Select all your projects and then hit Ctrl+Shift+O. It's also available at Source -> Organize Imports if you right click on the selected projects.
You can right-click on source folder in the project and select Source > Organize Imports. This will organize the imports for (recursively) all source files contained in that source folder. This can also be done on individual packages.
As for tying the "Organize Imports" action to a "Clean", that will be trickier. I think the closest thing would be to attach an Ant build.xml to the "Clean" stage for the project. You could set up the build.xml to invoke Jalopy, which can organize imports. I don't recommend this approach, as it modifies files behind Eclipse's back, which can cause frustrating issues.
As a compromise, you could go to Window > Preferences > Java > Editor > Save Actions >
[x] Perform the selected actions on save
[x] Organize imports
Right click the package then select Source->Organize Imports.
Visit http://www.ibm.com/developerworks/library/os-eclipse-clean/ .
Detailed HOW TO work with profiles and clean up your code.
Its very simple Genius!
Import packages : Ctrl + Shift + O and
Remove Unused packages : Ctrl + Shift + O
Related
I've found similar problems while searching, but not a fix for this specifically.
Disclaimer, I am fairly inexperienced, sorry if this is super basic. Thank you so much for any help in advance.
I've downloaded the apache commons language pack 3
commons-lang3-3.8.1 specifically for the array tools.
I made a folder, called 'lib' for importing the libraries.
Right click - lib(folder) -> import, add libraries.
Right Click - ProjectFolder -> Properties -> Java Build Path(on the left) -> Libraries(Tab) -> Add JARs -> (add the apache stuff) -> Apply and Close
Then autocomplete stops working in that specific project
I frequently use stuff like typing main then ctrl + space fills out the main method, or typing sysout and doing ctrl + space. This behavior is repeatable if I make a new project and do the same thing. Why does this happen? It make it impossible to do something I desperately need to do.
Thank you so much for any time and help offered.
EDIT: When I try, it says no default proposals. Just to add detail.
Is there a way , a shortcut or any setting which removes unused import from all projects ? effectively from workspace?
I found following question which states about removing from single file. How to remove unused imports from Eclipse.
But I need from whole workspace?
P.S.: Let me know if there are in any case ,a plug ins available for performing same.
Key combination Ctrl+ Shift + O - will trigger the Organize Imports that will remove and add missing imports.
To apply it on whole workspace you just have to select the project in the view Package Explorer and then use the key combination
Right click your working set node, or all projects that you need and select Source->Organize Imports.
Shortcut is Ctrl+Shift+O, it is basically written in the menu so if you are using a different OS, you should be able to find it. It works on single files as well as project nodes in the Package Explorer
As said, Ctrl+ Shift + O to do it manually or Window -> Preferences -> Java -> Editor -> Save Actions -> Organize Imports to have it organized automatically whenever you save a class.
Eclipse Workspace -> Java Resources -> right click on (src/main/java) folder -> Select Sorce from the menu -> Now finally select Organize import & you are done.
For macOS , you can use -->control+option+O combination.
Does IntelliJ have an Organize Imports feature similar to that in Eclipse?
What I have is a Java file with multiple classes missing their imports. Example:
package com.test;
public class Foo {
public Map map;
public JTable table;
}
In Eclipse I could use Organize Imports and it would automatically import both java.util.Map and javax.swing.JTable. In IntelliJ I have to individually go to each class, select it, then press Alt-Enter. There is an Optimize Imports feature but all it seems to do is sort and expand the existing imports.
I'm using IntelliJ 10.5.
Ctrl + Alt + O (Code → Optimize Imports...) is what you're looking for, both on Windows/Linux and macOS keymaps.
It says "Optimize", but, if configured to do so, it will also:
organize existing imports
remove unneeded imports
add new required imports
add unambiguous imports on the fly
You can tune the auto-import settings under "Settings → Editor → General → Auto Import" as described by Dave.
You can also modify how the imports are auto-ordered under "Settings → Editor → Code Style → Java → Imports"
Under "Settings -> Editor -> General -> Auto Import" there are several options regarding automatic imports. Only unambiguous imports may be added automatically; this is one of the options.
Simple & short solution worked for me.
Go to File -> Settings -> Editor -> Auto Import -> Java (left panel) and make the below things:
Select check box for "Add unambigious imports on the fly" and "Optimize imports on the fly"
Refer this.
In addition to Optimize Imports and Auto Import, which were pointed out by #dave-newton and #ryan-stewart in earlier answers, go to:
IDEA <= 13: File menu > Settings > Code Style > Java > Imports
IDEA >= 14: File menu > Settings > Editor > Code Style > Java > Imports (thanks to #mathias-bader for the hint!)
There you can fine tune the grouping and order or imports, "Class count to use import with '*'", etc.
Note:
since IDEA 13 you can configure the project default settings from the IDEA "start page": Configure > Project defaults > Settings > .... Then every new project will have those default settings:
July 2015 - I have concluded that IntelliJ does not support automatically resolving imports with a single function. "Organize imports" simply removes unused imports, it does not resolve unimported types. Control-Space resolves a single unimported type. There does not exist a single action to resolve all types' imports.
navigate to the file where you want to organize imports or just click on the whole package or even click on the project than press CTRL + ALT + O
In IntelliJ 14, the path to the settings for Auto Import has changed. The path is
IntelliJ IDEA->Preferences->Editor->General->Auto Import
then follow the instructions above, clicking
Add unambiguous imports on the fly
I can't imagine why this wouldn't be set by default.
Shortcut for the Mac: (ctrl + opt + o)
Goto Help -> Find Action (Short Cut for this is Cntl + Shift + A) and type Optimize imports (Short cut for this is Cntl + Alt + O)
Just move your mouse over the missing view and hit keys on windows ALT + ENTER
ALT+ENTER was far from eclipse habit ,in IDEA for me mouse over did not work , so in setting>IDESetting>Keymap>Show intention actions and quick-fixes I changed it to mouse left click , It did not support mouse over! but mouse left click was OK and closest to my intention.
That plugin will automatically do the "organize import" action on file save: https://github.com/dubreuia/intellij-plugin-save-actions.
To install: "File > Settings > Plugins > Browse repositories... > Search 'Save Actions' > Category 'Code tools'". Then activate the "organize import" save action.
I finally created a workaround around this frustrating issue. I'm not completely happy with the workaround, but it's better than nothing.
Basically, after you paste the source code and unambigous imports are fixed, just press F2 to highlight the next compiler error. If the current error is an import-missing error, press Alt+Enter, then Enter to select the Import option, then pick the correct import. Then, press F2 again.
If you are missing just one import (the class name has red underline), click and hover the mouse over it, and a blue suggested import statement will appear. If you hit, Alt + Enter at this point, the import will be included in the file and the red underline should disappear.
Shortcut on Android Studio on MacOS: Control + Option + O
I did not have any wildcard * as mentioned in one of the answers, neither did any of the formatting through Android Studio mentioned worked
What helped was running this:
./gradlew ktlintFormat
I am trying to follow Eclipse instructions to create a Hello World SWT application. I have the following instruction:
Import the SWT project from the main
menu via File > Import..., and select
Existing Projects into Workspace.
Specify the archive file you
downloaded and click Finish. This will
create the org.eclipse.swt project
which we will need to compile and run
the application.
I have troubles with that. In the "File" menu I see "Import...". When I click the "Import...", I do not see "Existing Project into Workspace". Instead of that I see "Select an import source:" after which I see a text field. After that I see a field with the following folders: General, CVS, Run/Debug, Tasks, Team, XML.
Can anybody help me with that, pleas?
You need to expand General.
If you expand the 'General' node (folder) you will see 'Existing projects into workspace' as an option. Select that and click on Next.
Eclipse has the wonderful search functionality on most of its important screens. Even if you don't know where exactly it is, you can type it and it appears. In this case type "Existing" into the text field above the list and you'll see what you are looking for.
Is there something similar to the Eclipse cleanup rules (Preferences > Java > Code Style > Clean Up) in NetBeans?
The cleanup rules in eclipse will allow you to clean things up like organizing imports, removing unnecessary casts, adding missing override annotations etc.
Also can you do that on a whole set of classes/packages instead of individual classes?
Refactor > Inspect and Transform
Is there something similar to the
Eclipse cleanup rules ((Preferences >
Java > Code Style > Clean Up) in
NetBeans?
In NetBeans 8.0, the powerful batch tool is Refactor > Inspect and Transform. See the tutorial page, Refactoring with Inspect and Transform in the NetBeans IDE Java Editor.
Individual tools are also available:
Fixing importsFor a single file, namespace, or project (depending on what's selected in Project window or has the focus): Source > Organize Imports (to sort and remove unused imports) or Source > Fix Imports (to sort, remove unused imports, and add missing imports). Or during every save: Tools > Options > Editor > On Save > Organize Imports.
Removal of trailing spacesFor a single file (place the carret in the code file): Source > Remove Trailing Spaces. Or during every save: Tools > Options > Editor > On Save > Remove Trailing Whitespace.
Code FormatFor a single file, namespace, or project: Source > Format. (Customize the rules in Tools > Editor > Formatting). There is also a plugin called Jindent you can install (I have not used it myself). Or during every save: Tools > Options > Editor > On Save > Reformat.
By default, Netbeans will display hint icons next to problematic lines of code and in the scrollbar, allowing you to perform an automatic fix if desired. These can be configured via Tools > Options > Editor > Hints. Netbeans can search all problems in the project using Source > Inspect. Or, to reiterate, many of these problems can be batch fixed with Refactor > Inspect and Transform.
The equivalent of Eclipse's "Code Cleanup" in NetBeans is "Format". It's under Source > Format, and the keyboard shortcut is Alt+Shift+F (on Windows). Unfortunately, unlike Eclipse, it doesn't seem like this can be configured in NetBeans.
For Netbeans use Ctrl+Shift+I to remove unused import from the file.
NetBeans 7.2 has Inspect & Transform refactoring to do this:
http://netbeans.org/kb/docs/java/editor-inspect-transform.html
tools -> options -> Tab "Editor" -> Tab "Hints" -> select Java (talking about) in JComboBox
and then you'd see yellow ocean ..., great and quick from ver 6.9
I know that netbeans points out these things automatically, but beyond merely pointing them out I don't know.
Right click on the project (or a package if you want), then choose "Inspect and Transform". In the dialog box, choose "Organize Imports" , from browse choose imports --> then --> Unused Imports
I don't know a way to do this en mass, but if you delete all imports from a source file and then right click in the source editor, you can select fix imports. This will import all the classes for you alphabetically, asking when it encounters package ambiguities.
As Soldier.moth pointed out, Netbeans will point out other issues, like casts and override annotations, in line, by use of a light bulb to the left of the source.
There is an Organize Imports plugin Read the DZone article for more info.
EDIT: I see there is a bug report to get this as part of the standard distribution.
If you just want to make your code have proper indentations on a whole project, simply click the project name, go to "Source," and then click "Format." Hope this helps!