Related
I'm working with Netbeans 8 on a Linux Mint 13 (Cinnamon). Here the TAB Key does not work. For example if I want to make a Line comment and use the TAB Key to indent a few tabs, then nothing happens. Even manual intendation of code using the TAB Key does not work. The TAB Key of my keyboard is not broken because it works in other programs. It is not a major issue but with time it is getting a little annoying.
NetBeans has GUI problems in Cinnamon in general (I heard it has to do with Cinnamon using muffin instead of mutter) could that be linked?
I just had this issue. Turned out it was caused by setting Tools -> Options -> Editor -> Formatting -> Category: Tabs and Indents -> Number of Spaces per Indent: 0
Setting the number of spaces per indent to a positive value fixed it in my case. Strangely, this value may affect your tabbing even if you aren't replacing tabs with spaces.
Had same problem on MATE # Ubuntu + NetBeans 8 beta.
TAB Key not inserting tabs/spaces insted of displaying [TAB] icon in status bar.
Key doesnt work on .java files, but it does on .txt or others format files.
What i did to fix it was deleting ~/.netbeans configuration folder.
Now i lost configuration but TAB is working again.
I also face the same problem, then i try to find out the solution and i just change the version of netbeans 12.6 to 12.0 with the jdk version 8 and it works!!!
The autocomplete of eclipse is not working now and I searched for hours but I couldn't find an answer to solve it. I haven't used it for long time then the first thing after opening it was to install SWT and windows builder even though I had swing installed. What I mean is, it is may possibly be because of some conflict caused by swt and swing(I read something about a conflict but I don't if this is possible).
Strange thing is it doesn't show anything when I press ctrl+space but when I go Edit-> Content Assist -> Default(it says Ctrl+Space nearby it), it shows things needed to be shown/works as desired.
public class Dsada {
String sssss;
public Dsada(){
sss //pressing ctrl+space is not working,Edit->ContentAssist->Default works fine
}
}
The solution is not to tick/untick some stuff under Windows->Preferences->...->Content Assist-> Advanced. I checked if "ctrl+space" is hijacked by some other thing which is not and checked keyboard language which is English(Those are suggested in mkyong).
I read something about a bug but I couldn't understand. I tried to delete eclipse and re-install again but I guess some settings just stayed in the machine so that it didn't work.
This is recurring for me. I'm using Eclipse 2019-03 in Windows 10.
The steps below work for my case, and does not require a restart.
Window->Preferences->Java->Editor->Content Assist->Advanced
The following options are de-selected, and when I set them the autocomplete worked as before. No restart needed.
1. Java Non-Type Proposals
2. Java Proposals
3. Java Type Proposals
4. Java Proposals (Task-focused)
I don't know what's triggering this but it only happens after I've created a new project. Usually doesn't. It simply doesn't happen often enough for me to notice a pattern to follow up on more.
Clearly this problem occurs with a variety of causes, so review the other answers to see if they match your case.
The hot key combination ctrl+space might be conflict with other settings in system if you are using windows.
Try modify this combination like alt+/, i always use this one since the first time i knew eclipse. It works well.
Hope it works for you.
Window->Preferences->Java->Editor->Content Assist->Advanced
The following options have to be selected, then the autocomplete worked . No restart is required.
Java Proposals (must be selected, not sure the follows)
Java Non-Type Proposals
Java Type Proposals
Java Proposals (Task-focused)
I was facing the same issue. If you use OS X Eclipse Ctrl+Space shortcut can be interfering with OS X system's "Selecting previous input source" using Ctrl+Space shortcut as default.
It is necessary to
edit System Preferencies/Keyboard/Shortcuts/Input Source and uncheck the "Selecting previous input source" or change the shortcut on something else. Eclipse should work after that even without restart.
I faced hot key problem with use Ctrl+Space. I tried to fix the issue first by Windows->Preferences->...->Content Assist-> Advanced and selected
Select the proposal kinds contained in the 'default' content assist list:
Other Java Proposals,
List item
SWT Template Proposals
Template Proposals
Type Proposals
but didn't help.
Therefore, I tried another solution. There would be multiple languages on your computer which could be eating up your Ctrl command. To solve this Go to Control Panel -> Region and Language -> Keyboards and Languages (tab) and then Change Keyboards.
You’ll see a list of languages installed – remove any that you don’t want (click the language and then click the Remove button) until you only have the ones you want left. That fixed it for me, but you can also check the Advanced Key Settings tab to make sure that none of the keyboard short-cuts that are set include Ctrl-Space.
Once you’ve done that, Ctrl-Space should work nicely!!!!
I had the same Problem on Ubuntu 14.04. The problem for me was that ibus used Ctrl+Space as a shortcut. I solved it by starting the program ibus-setup and chaning the shortcut to something else than Ctrl+Space.
Go to Windows >> Preferences » Java » Editor » Content Assist. Then Check the Auto activation triggers for java, Add this in the text box .abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
Recently, I also faced this issue. When I install neon version eclipse.
By (1) deleting respective class, (2) restoring defaults appearance and (3) restarting eclipse, solved the problem for me.
Hope it will help someone.
Go to Preferences » Java » Editor » Content Assist » Advanced. Make sure Other Java Proposals is ticked/checked.
I checked windows has no conflict of ctrl+space (of eclipse autosuggestion) with windows.
This is mere configuration issue of eclipse. reinstallation would fix it.
Thanks.
I select all the parameters in Preferences -> Java -> Editor -> Content Assist -> Advanced.
It help me and resolve the my problem.
Cltr+space work using this step.
Saving my work and restarting Eclipse solved this for me. I hadn't shut down Eclipse in a while, maybe weeks.
I had the same problem (MacOS Monterey, Eclipse 06-2022). Turned out it works with pressed fn button.
For Mac user, you can try : Preferences -> Java > Editor > Content Assist and then :
tick the field "Enable auto activation"
in the field Auto activation trigger for Java, you can input the text alphabet ".abcdefghijklmnopqrstuvwxyz"
There is no syntax highlighting in java files in my eclipse..This happened all of a sudden..Not sure why..
This is how it is looking now..
As mentioned in other posts..i tried to change the color from preferences window and there is nothing when i type java..something really messed up...
AAny suggestions..
Update:
It seems Java plugin is not installed..as per the below screeenshot
And when i try to install java plugin it says new version is already installed as per the below screenshot
Closing the file's tab and re-opening it fixed it for me.
(I actually closed all the tabs...)
I faced the same issue all of a sudden after a commit/update project operation.
The point is, default editor of Eclipse has changed somehow and we have to set it back to normal.
Try the below method,
1. Goto Windows -> Click Preferences
2. From the Preferences window goto General -> Editors -> Click File Associations
3. You can choose the default editor for *.java files here
When I first opened Preferences, 'Text editor' was set as the default editor for .java files and then I changed it back to 'Java Editor'.
Now it works perfectly fine.
You probably have a corrupt installation or you have recently installed a corrupt plugin.
The following steps might help.
In your Install window,
view your "already installed" plugins.
select the "Installation History" tab.
select a previous stable configuration
Click the "Revert" button
TLDR; open another workspace, then come back to the original workspace.
Ok this is odd, but for me, all the highlighting suddenly went away for Java files. I explored all of these ideas here, with no effect. I created a new workspace, planning to move everything to it. I realized that can be a pain to move many projects over, so I went back into the original workspace to look at some settings, and poof - the highlighting was working again.
I have one java class file like a text editor.
I tried following,
Select the respective java class file from eclipse.
Right click on the file and mouse hover on "Open with".
Select java editor.
Now its works.
Eclipse does not highlight matching variables for me:
I've already tried to change "Mark occurrences" via
Window -> Preferences -> Java -> Editor -> Mark Occurrences
but it didn't work. I am not sure why this is not working while others
have been able to fix the problem.
Can anyone tell me how can I set highlighting matching variables?
Looking for same variables with my eyes really bothering me too much.
Try:
window > preferences > java > editor > mark occurrences
Select all options available there.
Also go to:
Preferences > General > Editors > Text Editors > Annotations
Compare the settings for 'Occurrences' and 'Write Occurrences'
Make sure that you don't have the 'Text as higlighted' option checked for one of them.
This should fix it.
Alt + Shift + o
Will solve your problem and agree with #Korhan Ozturk as well :)
This is known as Toggle Mark occurrence (Alt + Shift + O), Means will highlight all occurrence of focused variable.
Same thing can be achieved from tool bar as follows
In same tool bar there is another switch if you turn that on you will see complete path for opened file, That is Breadcrumb
there are some more very useful switches like word wrap, Show white Characters just after toggle mark occurrence
There is a bug in Eclipse Juno (and probably others) but I have a workaround!
If you have already checked all the configurations mentioned in the top answers here and it's STILL not working try this.
To confirm the problem:
Select a variable
Notice the highlight didn't work
Click away from eclipse so the editor loses focus.
Click on eclipse's title bar so it regains focus, your variable should be highlighted.
If this is happening for you, you must close ALL of your open files and reopen them. This bug seems to also make weird things happen with Ctrl+S saving of an individual file. My guess is that something is happening whereby internally eclipse believes a certain file has focus but it actually doesn't, and the UI's state is rendered as though a different file is being edited.
Edit: If it's STILL not working, you might need to restart eclipse, but if you don't want to, try selecting the item you want to see occurrences of then disable and re-enable the Mark Occurences Toggle button.
The only that worked for me was:
Java > Editor > Mark Occurrences:
Check "Mark occurrences of te selected element in the current file."
... and maybe all the ones below.
Using Alt + Shift + o
It works for me!
For others running into this without any of the above solutions working AND you have modified the default theme, you might want to check the highlight color for occurrences.
Preferences > General > Editors > Text Editors > Annotations
Then select Occurrences in the Annotation Types, and change the Color Box to something other than your background color in your editor. You can also change the Highlight to a outline box by Checking "Text as" and selecting "Box" from the drop-down box (which is easier to see various syntax colors then with the highlights)
I wish I could have read the response by #Ján Lazár.
In addition to all the configurations mentioned in the accepted answer, below setting solved my misery:
For large files the scalability mode must be turned off. Enabling scalability mode will disable reference highlighting.
PS: #Rob Hruska It would be great if this point is added in the accepted answer. Most of the readers do not bother to read the last response.
For PHP you can set
window > preferences > PHP > editor > mark occurrences
Please check first checkbox (Mark occurrences of selected element in the current file)
And also check
Preferences > General > Editors > Text Editors > Annotations
'Occurrences' and 'Write Occurrences' with different style and color
If highlighting is not working for large files, scalability mode has to be off.
Properties / (c/c++) / Editor / Scalability
.
Java - Editor - Mark Occurrences
Eclipse Java EE IDE for Web Developers.
Version: Photon Release (4.8.0)
maybe because it not supports code highlights inside scriplets. not sure though.
You can try using one of the eclipse plugin like 'glance search' which works great.
Here's a link for that-
http://code.google.com/p/eclipse-glance/
I just unchecked all, applied, checked all again, applied and it worked :) hopefully helps others.
Eclipse Toolbar > Windows > Preferences > General (Right side) > Editors (Right side) > Text Editors (Right side) > Annotations (Right side)
For Occurrences and Write Occurrences, make sure you DO have the 'Text as highlighted' option checked for all of them. See screenshot below:
I was having the same issue and the "make occurrences" and "annotations" solutions above did not help. If you are using Maven, I had to convert the project to a Maven project (right click on it in the Package Explorer and go down to configure), then build the project. Then the syntax coloring and highlighting worked correctly.
This is what worked for me (credit to YardenST from another thread):
Instead of double clicking file when opening, right click on file -> Open with -> Java editor
In Scala IDE click on this button in the toolbox to activate Mark Occurrences (off by default).
link to the screenshot
Sometimes problems in your project build path can cause this, make sure you resolve it first, in my case the prolem was :
And when fix it highlights come back.
I had this issue with Eclipse Mars for PHP developers, 64 bit edition for Windows. I now discovered that highlighting works out-of-the-box with the 32 bit version. Even with a fresh download of the equivalent 64 bit build, highlighting does not work. So I will switch back to 32 bit (this is actually not the first problem I observe with Eclipse 64 bit).
Edit:
I thought this was the solution, so I installed the 32 bit version in C:\Program Files (x86) and set a shortcut in the "Start" menu. When I started Eclipse from there, highlighting again ceased to work. I now got it working again by deleting the .metadata directory in the workspace (i.e. resetting the workspace settings) and re-importing the projects.
The GUI for managing plugins in Eclipse got a bit of an overhaul in version 3.4.0.
This GUI is accessed via the "Software Updates..." option in the Help menu.
The option to remove the selected Mylyn plugin is greyed out. In fact, this is true of virtually every installed plugin. I know that the Mylyn plugins are optional, so why amn't I provided with an option to remove them?
The following text is quoted from the Eclipse help docs:
The Uninstall wizard allows you to review and uninstall items in your configuration. This wizard is shown when you select items and press Uninstall... from the Installed Software page. To uninstall software from your system:
Click Help > About and then click Installation Details... to open a dialog showing pages that provide more detail about your installation.
Click the Installed Software tab to see a list of the software items that you have installed into your system.
Select the items that you wish to uninstall.
Click Uninstall...
The Uninstall Details page will show you a list of the items that will be uninstalled. Expanding each item will show what additional items (if any) will be uninstalled as a result of your choice.
If you change your mind about which items should be uninstalled, you may click Back to see a checkmark list of the items you selected before. You may check and uncheck different items in the list, and click Next when you are ready to continue.
Click Finish to start the uninstall.
Once all of the software is uninstalled successfully, you will be prompted to restart for the Workbench. Click Yes when asked to exit and restart the Workbench for the changes to take effect.
And just to update it for Helios - Eclipse 3.6
Help->Install New Software at the bottom of dialog there is link What is already installed once you click on that you will get list of installed plugins and Uninstal... button
eclipse 3.5(Galieo)
Help>> Install New Software >> Already Installed Plugins >> select Plugins >> Uninstall works charm.
There are distributions of Eclipse that come packaged with certain plugins that can't be mix-and-matched. That is the case with Mylyn, that went from a student's thesis project to an integral part of Eclipse. If you want to actually get rid of Mylyn, you may want to install Eclipse classic instead of the distribution you have, and then install the stuff you need.
The standard Eclipse distributions come with Myln.
BTW, Eclipser 3.5 completely changes all these screens :(
If you are using Windows, make sure you are running Eclipse as administrator. Without administrator privileges, some options may be grayed-out in "Installed Software".
In eclipse Helios (version 3.6), to uninstall a plugin:
Go to Help->Install New Software...
Click on "What is already installed?" link at the bottom right side of the dialog
In the Installed Software tab choose the software you want to uninstall
Click on the "Uninstall..." button at the bottom
Click 'Finish' on the Uninstall Details dialog
Observe the 'Uninstalling Software %' status at the bottom status bar of eclipse
Click 'Restart Now' when prompted to do so.
Eclipse restarts. Choose the workspace. Now when you go again to the Installed Software window , you do not find the uninstalled software.
In Eclipse 3.6 Helios, the interface has changed again. Go to "About Eclipse", and then click the "Installation Details" button in the about box.
While Help → About Eclipse IDE [or wherever it was in the past or will be in the future] → Installation Details → Installed Software → Uninstall... is the official and preferred way there are features/plugins the latter button of which is disabled.
Remember also that there aren't only plugins but features too. In my case I wanted to remove Mylyn and Wild Web Developer from a rather fresh Eclipse IDE for Enterprise Java and Web Developers package. I did the following.
But first a:
DISCLAIMER
Enter ECLIPSE_HOME at your own risk. Mistakes like typos might be in the following, too. I take no responsibility for whatsoever.
Created the directories features.DISABLED and plugins.DISABLED in Eclipse's home dir.
Moved *mylyn* from ECLIPSE_HOME/features to ECLIPSE_HOME/features.DISABLED
Moved *wildwebdeveloper* from ECLIPSE_HOME/features to ECLIPSE_HOME/features.DISABLED
Moved *mylyn* from ECLIPSE_HOME/plugins to ECLIPSE_HOME/plugins.DISABLED
Moved *wildwebdeveloper* from ECLIPSE_HOME/plugins to ECLIPSE_HOME/plugins.DISABLED
After starting Eclipse there were about a dozen "not found" errors in Eclipse's Error Log view. If you double-click on each of them you can see which dependency plugin JAR(s) haven't been found.
Set the Error Log view's filter to just display errors and warnings.
Moved the dependency plugin *.jars mentioned in the errors from ECLIPSE_HOME/plugins.DISABLED back to ECLIPSE_HOME/plugins one by one (with Eclipse restart after each) until no "not found" error appeared in the view any longer. It were nine *mylyn*.jars in the end.:
*.mylyn.commons.core_*
*.mylyn.commons.net_*
*.mylyn.commons.notifications.core_*
*.mylyn.commons.notifications.ui_*
*.mylyn.commons.screenshots.ui_*
*.mylyn.commons.ui_*
*.mylyn.commons.workbench_*
*.mylyn.commons.wikitext.markdown_*
*.mylyn.commons.wikitext.*
Note that this applies to a rather fresh Eclipse 2021-03 (4.19.0) installation. It might be different from one – even patch – version to the other.
Furthermore:
Keep Eclipse's Error Log view open for a while. The underlying OSGi activates bundles (plugins) on the fly if they are referenced from an other bundle (plugin) for the first time. And if one isn't there then...
Check the Error Log view especially after installing new features/plugins. They might rely on plugins/JARs you moved to .DISABLED. If that's the case move the according JAR(s) back to ECLIPSE_HOME/plugins and/or ECLIPSE_HOME/features.
If something doesn't work as it did in the past once in the future remember what you did and ... → Error Log view.
I'm running (a relatively fresh copy of) 3.4.1. I was able to select the same plug-in shown in your screen shot (Mylyn Bridge: Java Development) to get an enabled "Uninstall..." button. I'd suggest getting the latest updates and trying again.
It sure looks like there's no way to do this.
I just had exactly this problem with a fresh download of the Eclipse Java IDE (Ganymede SR2). I didn't want Mylyn, but I didn't want "Eclipse Classic", either, because the download was twice the size, I presume because it includes source.
The apparent solution was to update everything and restart Eclipse, after which the "Uninstall..." button became enabled for the Mylyn plugins. Unfortunately, this only uninstalled the most recent, updated version (3.0.11 IIRC), reverting to the un-uninstallable 3.0.5.
I just don't know what the hell these Eclipse developers are thinking! Removing plug-ins from Eclipse became a pain in the ass since Helios!
I hear you pal... I just went through the whole day trying to figure out as no one seems to give an straight answer like "do this, that, done."
Man I'd rather be programming instead....
Found, in the middle of my evening that it is possible to uninstall pretty much everything. The issue is that the damn thing is hidden in the "HELP->ABOUT". Who would guess after going over and over through the "Help->Install New Software" or "Help->Check for updates" and never finding anything like "remove" or "reinstall" or "force reinstall".
Seriouly, I'd rather go back to 1990 when we had Microsoft, Borland and Watcom.. you picked your platform and you'd be with 1/3 of the world of developers with you.. ok, perhaps Watcom didn't hit that mark but you get the point.
So... to uninstall any plugin from Eclipse Helios (Service Release 1) or Springsource 3.5.2 (or 3.6.1 I 'm using), do this:
close all your projects (just to be on the safe side);
Hit menu "HELP-->ABOUT" (yeah.. help, about);
Hit "Installation Details" button and you get the list with all plugins;
Click on the one you want to remove; hit uninstall;
If want to remove more than one, just apply the change without restart;
Goto to 4) as needed
Finally, restart Eclipse and reinstall what you need !
It was hard to find, but it worked very well for me.